From 00c394b41600193b169f5073b1092eb1ebcd9634 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Wed, 11 Feb 2026 18:30:01 +0530 Subject: [PATCH 01/40] feat: add enableExtendedPermissions flag for runner service account (#393) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * feat: add enableWritePermissions flag for runner service account Adds runner.enableWritePermissions (default: false) that grants additional write permissions needed for kubectl executor, workload lifecycle management, and node operations. When enabled, adds: node delete, service/secret/namespace/endpoint/ serviceaccount writes, resourcequotas, limitranges, statefulset scaling, workload creation (apps group), ingress/networkpolicy writes, RBAC role management, and rollout create/delete. * chore: update image tags for main release Updated image tags to latest versions from ECR for main branch. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude --------- Co-authored-by: github-actions[bot] --- .../templates/runner-service-account.yaml | 140 ++++++++++++++++++ charts/nudgebee-agent/values.yaml | 11 +- 2 files changed, 148 insertions(+), 3 deletions(-) diff --git a/charts/nudgebee-agent/templates/runner-service-account.yaml b/charts/nudgebee-agent/templates/runner-service-account.yaml index 1649275..9e98f13 100644 --- a/charts/nudgebee-agent/templates/runner-service-account.yaml +++ b/charts/nudgebee-agent/templates/runner-service-account.yaml @@ -290,6 +290,142 @@ rules: - pods - nodes verbs: ["get", "list"] + +{{- if .Values.runner.enableWritePermissions }} + # -- Write permissions (runner.enableWritePermissions) -- + + # Node delete - required for node graceful shutdown (kubectl delete node) + - apiGroups: + - "" + resources: + - nodes + verbs: + - delete + + # Service lifecycle management + - apiGroups: + - "" + resources: + - services + verbs: + - create + - update + - patch + - delete + + # Secret update/delete (base already has create/list/get) + - apiGroups: + - "" + resources: + - secrets + verbs: + - update + - patch + - delete + + # Namespace creation + - apiGroups: + - "" + resources: + - namespaces + verbs: + - create + - delete + + # Endpoint management + - apiGroups: + - "" + resources: + - endpoints + verbs: + - create + - update + - patch + - delete + + # ServiceAccount management + - apiGroups: + - "" + resources: + - serviceaccounts + verbs: + - create + - update + - patch + - delete + + # ResourceQuotas and LimitRanges + - apiGroups: + - "" + resources: + - resourcequotas + - limitranges + verbs: + - get + - list + - watch + - create + - update + - patch + - delete + + # StatefulSet scale subresource + create for all apps resources + - apiGroups: + - apps + resources: + - statefulsets/scale + verbs: + - get + - list + - watch + - patch + - update + + # Workload creation (create_workload action) + - apiGroups: + - apps + resources: + - deployments + - statefulsets + - daemonsets + - replicasets + verbs: + - create + + # Ingress write access + - apiGroups: + - networking.k8s.io + resources: + - ingresses + - networkpolicies + verbs: + - create + - update + - patch + - delete + + # Extensions ingress write + - apiGroups: + - extensions + resources: + - ingresses + verbs: + - create + - delete + + # RBAC read for roles/rolebindings (namespace-scoped) + - apiGroups: + - rbac.authorization.k8s.io + resources: + - roles + - rolebindings + verbs: + - create + - update + - patch + - delete +{{- end }} + {{- if (.Capabilities.APIVersions.Has "argoproj.io/v1alpha1/Rollout") }} - apiGroups: - argoproj.io @@ -300,6 +436,10 @@ rules: - list - patch - update +{{- if .Values.runner.enableWritePermissions }} + - create + - delete +{{- end }} {{- end }} {{- if or (.Capabilities.APIVersions.Has "karpenter.sh/v1beta1/NodePool") (.Capabilities.APIVersions.Has "karpenter.sh/v1/NodePool") }} diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index c03a5ed..7e47644 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -636,7 +636,7 @@ runnerServiceAccount: runner: image: repository: registry.nudgebee.com/nudgebee-agent - tag: 2026-01-09T10-54-01_eabafd546d9e50c1601a8262667a223226abe042 + tag: 2026-02-10T12-19-32_e0410e35183bf51938e84004f2885ee7451c9d2e imagePullPolicy: IfNotPresent log_level: INFO resources: @@ -648,6 +648,11 @@ runner: tolerations: [] annotations: {} nodeSelector: ~ + # Enable write permissions for the runner service account. + # Adds permissions for: node delete/drain, service management, secret updates, + # ingress/networkpolicy writes, resource quotas, limit ranges, namespace creation, + # statefulset scaling, workload creation, and rollout lifecycle management. + enableWritePermissions: false customClusterRoleRules: [] imagePullSecrets: [] extraVolumes: [] @@ -660,7 +665,7 @@ runner: nova_image_override: nova:2025-08-25T06-49-02_8a8e0766cfc5817c4de429f0df8fb0faa154907f clickhouse_enabled: true clickhouse_secret: "" - runbook_sidecar_image_tag: 2026-01-09T08-56-51_1bc8ed44579b442306416c9a2733c4ae4c124873 + runbook_sidecar_image_tag: 2026-01-21T12-26-01_65a85cc1e589d506b9d5fa39f684d61c98638c4e victoria_metrics_enabled: false loki: url: "" @@ -742,7 +747,7 @@ nodeAgent: image: repository: registry.nudgebee.com/nudgebee-node-agent pullPolicy: IfNotPresent - tag: 2026-01-12T03-44-08_8755b8391c96d6fefd4f4c6726d3796fe7bdcc5c + tag: 2026-02-11T12-50-36_f509857e08ab0e3e6d7bece9d4272e641eec4714 resources: requests: cpu: "100m" From 1296b802546253ca525828949b9e5d7c33fd70af Mon Sep 17 00:00:00 2001 From: mayankpande88 Date: Sat, 7 Mar 2026 19:48:49 +0530 Subject: [PATCH 02/40] fix: remove krr_scan and volume_analyzer cron schedules from agent These scans are now handled server-side by ml-k8s-server via Vertical Rightsizing Refresh and Volume Rightsizing Refresh Hasura crons. Removing agent-side scheduling to avoid duplicate execution. --- charts/nudgebee-agent/values.yaml | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 7e47644..320c459 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -203,12 +203,6 @@ customPlaybooks: - job_info_enricher: {} - job_events_enricher: {} - job_pod_enricher: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 12 * * *" # every day at 12:00 - actions: - - krr_scan: {} - triggers: - on_schedule: cron_schedule_repeat: @@ -239,12 +233,6 @@ customPlaybooks: cron_expression: "0 0 * * *" # every day at 00:00 actions: - unused_pv: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 */4 * * *" # every 4 hour - actions: - - volume_analyzer: {} - triggers: - on_deployment_all_changes: {} - on_daemonset_all_changes: {} From 1a2c3322da93275a456ef02d6b922702881cb0a6 Mon Sep 17 00:00:00 2001 From: "github-actions[bot]" Date: Sat, 7 Mar 2026 14:25:58 +0000 Subject: [PATCH 03/40] chore: update image tags for main release MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Updated image tags to latest versions from ECR for main branch. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude --- charts/nudgebee-agent/values.yaml | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 320c459..c79f5dd 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -624,7 +624,7 @@ runnerServiceAccount: runner: image: repository: registry.nudgebee.com/nudgebee-agent - tag: 2026-02-10T12-19-32_e0410e35183bf51938e84004f2885ee7451c9d2e + tag: 2026-03-07T11-58-24_ac1360dbc5401f549c7bba75d382e1ce22071d41 imagePullPolicy: IfNotPresent log_level: INFO resources: @@ -650,7 +650,7 @@ runner: relay_address: wss://relay.nudgebee.com/register profiler_image_override: 2025-10-07T09-20-18_6ede7487ac41f9c167a2e547e70ac7e7a2de7a88 kubepug_image_override: kubepug:2025-08-13T08-26-24_d16f6f2d1e27c24258c36ab8caf2054b583aa3cb - nova_image_override: nova:2025-08-25T06-49-02_8a8e0766cfc5817c4de429f0df8fb0faa154907f + nova_image_override: nova:2026-03-07T11-56-14_c1432955300a4a231c9d6a364513ec680898f595 clickhouse_enabled: true clickhouse_secret: "" runbook_sidecar_image_tag: 2026-01-21T12-26-01_65a85cc1e589d506b9d5fa39f684d61c98638c4e @@ -735,7 +735,7 @@ nodeAgent: image: repository: registry.nudgebee.com/nudgebee-node-agent pullPolicy: IfNotPresent - tag: 2026-02-11T12-50-36_f509857e08ab0e3e6d7bece9d4272e641eec4714 + tag: 2026-03-07T13-05-46_d38d1d4491462852250825a90161b417b21d5c3a resources: requests: cpu: "100m" From bebc9ad9aece05e399e899412cd8b4f3dec8094e Mon Sep 17 00:00:00 2001 From: mayankpande88 Date: Wed, 1 Apr 2026 15:31:30 +0530 Subject: [PATCH 04/40] fix: add --no-paginate to nudgebee-agent ECR query in release workflows Without --no-paginate, the JMESPath query runs per-page, returning multiple image tags. The multi-line value causes InvalidImageTag errors. --- .github/workflows/release-rc.yml | 2 +- .github/workflows/release.yml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index b088d98..554b0d7 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -81,7 +81,7 @@ jobs: - name: Update Helm Package for Nudgebee RC working-directory: ./charts/nudgebee-agent run: | - nudgebee_app_image=`aws ecr describe-images --repository-name nudgebee-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags], &imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text` + nudgebee_app_image=`aws ecr describe-images --repository-name nudgebee-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags], &imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` echo "nudgebee_app_image: $nudgebee_app_image" yq -i ".runner.image.tag=\"$nudgebee_app_image\"" values.yaml diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 6fe2791..b66219f 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -37,7 +37,7 @@ jobs: - name: Update Helm Package for Nudgebee working-directory: ./charts/nudgebee-agent run: | - nudgebee_app_image=`aws ecr describe-images --repository-name nudgebee-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags], &imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text` + nudgebee_app_image=`aws ecr describe-images --repository-name nudgebee-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags], &imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` echo "nudgebee_app_image: $nudgebee_app_image" yq -i ".runner.image.tag=\"$nudgebee_app_image\"" values.yaml From de7d494a1feb1e58f5a8bc7d44b9a9c530b09570 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 18 May 2026 12:37:13 +0530 Subject: [PATCH 05/40] Merge pull request #422 from nudgebee/feat/go-agent-cutover feat(chart): migrate to Go nudgebee-agent, drop Robusta plumbing --- .github/workflows/release-rc.yml | 45 -- .github/workflows/release.yml | 45 -- .github/workflows/update-image-tags.yml | 70 +- charts/nudgebee-agent/Chart.yaml | 4 +- charts/nudgebee-agent/templates/_helpers.tpl | 240 ++----- .../nudgebee-agent/templates/apiserver.yaml | 78 --- .../nudgebee-agent/templates/daemonset.yaml | 12 +- .../templates/playbooks-config.yaml | 12 - .../prometheus-alert-manager-config.yaml | 22 - .../templates/prometheus-alert-rule.yaml | 2 +- charts/nudgebee-agent/templates/runner.yaml | 78 +-- charts/nudgebee-agent/values.yaml | 606 +----------------- 12 files changed, 89 insertions(+), 1125 deletions(-) delete mode 100644 charts/nudgebee-agent/templates/apiserver.yaml delete mode 100644 charts/nudgebee-agent/templates/playbooks-config.yaml delete mode 100644 charts/nudgebee-agent/templates/prometheus-alert-manager-config.yaml diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index 554b0d7..115b0d4 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -30,16 +30,6 @@ jobs: echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | sudo tee /etc/apt/sources.list.d/github-cli.list > /dev/null sudo apt update sudo apt install gh - - - name: Install AWS cli - uses: unfor19/install-aws-cli-action@master - - - name: Configure AWS Credentials - uses: aws-actions/configure-aws-credentials@v1 - with: - aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }} - aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }} - aws-region: us-east-1 - name: Generate RC version id: rc_version @@ -78,41 +68,6 @@ jobs: echo "Registry update completed" - - name: Update Helm Package for Nudgebee RC - working-directory: ./charts/nudgebee-agent - run: | - nudgebee_app_image=`aws ecr describe-images --repository-name nudgebee-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags], &imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_app_image: $nudgebee_app_image" - yq -i ".runner.image.tag=\"$nudgebee_app_image\"" values.yaml - - nudgebee_node_image=`aws ecr describe-images --repository-name nudgebee-node-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_node_image: $nudgebee_node_image" - yq -i ".nodeAgent.image.tag=\"$nudgebee_node_image\"" values.yaml - - nudgebee_profile_image=`aws ecr describe-images --repository-name nudgebee-profiler-python --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_profile_image: $nudgebee_profile_image" - yq -i ".runner.profiler_image_override=\"$nudgebee_profile_image\"" values.yaml - - nudgebee_krr_image=`aws ecr describe-images --repository-name krr-public --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_krr_image: $nudgebee_krr_image" - yq -i ".runner.krr_image_override=\"krr-public:$nudgebee_krr_image\"" values.yaml - - nudgebee_kubepug_image=`aws ecr describe-images --repository-name kubepug --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_kubepug_image: $nudgebee_kubepug_image" - yq -i ".runner.kubepug_image_override=\"kubepug:$nudgebee_kubepug_image\"" values.yaml - - nudgebee_nova_image=`aws ecr describe-images --repository-name nova --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_nova_image: $nudgebee_nova_image" - yq -i ".runner.nova_image_override=\"nova:$nudgebee_nova_image\"" values.yaml - - nudgebee_kubewatch_image=`aws ecr describe-images --repository-name kubewatch --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_kubewatch_image: $nudgebee_kubewatch_image" - yq -i ".kubewatch.image.tag=\"$nudgebee_kubewatch_image\"" values.yaml - - runbook_sidecar_image_tag=`aws ecr describe-images --repository-name nudgebee_runbook_sidecar_agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "runbook_sidecar_image_tag: $runbook_sidecar_image_tag" - yq -i ".runner.runbook_sidecar_image_tag=\"$runbook_sidecar_image_tag\"" values.yaml - - name: Add dependency chart repos run: | helm repo add opencost https://opencost.github.io/opencost-helm-chart diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index b66219f..0a90ea7 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -23,51 +23,6 @@ jobs: uses: azure/setup-helm@v3 with: version: v3.10.0 - - - name: Install AWS cli - uses: unfor19/install-aws-cli-action@master - - - name: Configure AWS Credentials - uses: aws-actions/configure-aws-credentials@v1 - with: - aws-access-key-id: ${{ secrets.PROD_AWS_ACCESS_KEY_ID }} - aws-secret-access-key: ${{ secrets.PROD_AWS_SECRET_ACCESS_KEY }} - aws-region: us-east-1 - - - name: Update Helm Package for Nudgebee - working-directory: ./charts/nudgebee-agent - run: | - nudgebee_app_image=`aws ecr describe-images --repository-name nudgebee-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags], &imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_app_image: $nudgebee_app_image" - yq -i ".runner.image.tag=\"$nudgebee_app_image\"" values.yaml - - nudgebee_node_image=`aws ecr describe-images --repository-name nudgebee-node-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_node_image: $nudgebee_node_image" - yq -i ".nodeAgent.image.tag=\"$nudgebee_node_image\"" values.yaml - - nudgebee_profile_image=`aws ecr describe-images --repository-name nudgebee-profiler-python --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_profile_image: $nudgebee_profile_image" - yq -i ".runner.profiler_image_override=\"$nudgebee_profile_image\"" values.yaml - - nudgebee_krr_image=`aws ecr describe-images --repository-name krr-public --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_krr_image: $nudgebee_krr_image" - yq -i ".runner.krr_image_override=\"krr-public:$nudgebee_krr_image\"" values.yaml - - nudgebee_kubepug_image=`aws ecr describe-images --repository-name kubepug --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_kubepug_image: $nudgebee_kubepug_image" - yq -i ".runner.kubepug_image_override=\"kubepug:$nudgebee_kubepug_image\"" values.yaml - - nudgebee_nova_image=`aws ecr describe-images --repository-name nova --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_nova_image: $nudgebee_nova_image" - yq -i ".runner.nova_image_override=\"nova:$nudgebee_nova_image\"" values.yaml - - nudgebee_kubewatch_image=`aws ecr describe-images --repository-name kubewatch --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_kubewatch_image: $nudgebee_kubewatch_image" - yq -i ".kubewatch.image.tag=\"$nudgebee_kubewatch_image\"" values.yaml - - runbook_sidecar_image_tag=`aws ecr describe-images --repository-name nudgebee_runbook_sidecar_agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "runbook_sidecar_image_tag: $runbook_sidecar_image_tag" - yq -i ".runner.runbook_sidecar_image_tag=\"$runbook_sidecar_image_tag\"" values.yaml - name: Add dependency chart repos run: | diff --git a/.github/workflows/update-image-tags.yml b/.github/workflows/update-image-tags.yml index 341a88d..a21850d 100644 --- a/.github/workflows/update-image-tags.yml +++ b/.github/workflows/update-image-tags.yml @@ -13,6 +13,7 @@ jobs: permissions: contents: write pull-requests: write + packages: read steps: - name: Checkout PR branch uses: actions/checkout@v3 @@ -20,63 +21,34 @@ jobs: token: ${{ secrets.GITHUB_TOKEN }} ref: ${{ github.head_ref }} - - name: Install AWS CLI - uses: unfor19/install-aws-cli-action@master - - - name: Configure AWS Credentials for prod branch - if: github.base_ref == 'prod' - uses: aws-actions/configure-aws-credentials@v1 - with: - aws-access-key-id: ${{ secrets.PROD_AWS_ACCESS_KEY_ID }} - aws-secret-access-key: ${{ secrets.PROD_AWS_SECRET_ACCESS_KEY }} - aws-region: us-east-1 - - - name: Configure AWS Credentials for main branch - if: github.base_ref == 'main' - uses: aws-actions/configure-aws-credentials@v1 - with: - aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }} - aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }} - aws-region: us-east-1 - - name: Update image tags working-directory: ./charts/nudgebee-agent + env: + GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} run: | echo "Updating image tags for ${{ github.base_ref }} branch..." - - # Get latest images from ECR - nudgebee_app_image=`aws ecr describe-images --repository-name nudgebee-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags], &imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text` + + # nudgebee-agent: newest timestamp_sha tag from GHCR + nudgebee_app_image=$(gh api -H "Accept: application/vnd.github+json" \ + "/orgs/nudgebee/packages/container/nudgebee-agent/versions?per_page=20" \ + --jq '[.[].metadata.container.tags[]] | map(select(test("^[0-9]{4}-"))) | .[0]') echo "nudgebee_app_image: $nudgebee_app_image" yq -i ".runner.image.tag=\"$nudgebee_app_image\"" values.yaml - nudgebee_node_image=`aws ecr describe-images --repository-name nudgebee-node-agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` + # node-agent: newest semver tag from GHCR + nudgebee_node_image=$(gh api -H "Accept: application/vnd.github+json" \ + "/orgs/nudgebee/packages/container/node-agent/versions?per_page=20" \ + --jq '[.[].metadata.container.tags[]] | map(select(test("^[0-9]+\\.[0-9]+\\.[0-9]+"))) | .[0]') echo "nudgebee_node_image: $nudgebee_node_image" yq -i ".nodeAgent.image.tag=\"$nudgebee_node_image\"" values.yaml - nudgebee_profile_image=`aws ecr describe-images --repository-name nudgebee-profiler-python --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_profile_image: $nudgebee_profile_image" - yq -i ".runner.profiler_image_override=\"$nudgebee_profile_image\"" values.yaml - - nudgebee_krr_image=`aws ecr describe-images --repository-name krr-public --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_krr_image: $nudgebee_krr_image" - yq -i ".runner.krr_image_override=\"krr-public:$nudgebee_krr_image\"" values.yaml - - nudgebee_kubepug_image=`aws ecr describe-images --repository-name kubepug --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_kubepug_image: $nudgebee_kubepug_image" - yq -i ".runner.kubepug_image_override=\"kubepug:$nudgebee_kubepug_image\"" values.yaml - - nudgebee_nova_image=`aws ecr describe-images --repository-name nova --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "nudgebee_nova_image: $nudgebee_nova_image" - yq -i ".runner.nova_image_override=\"nova:$nudgebee_nova_image\"" values.yaml - - nudgebee_kubewatch_image=`aws ecr describe-images --repository-name kubewatch --filter tagStatus=TAGGED --query 'sort_by(imageDetails[?imageTags != 'null'],& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` + # kubewatch: newest semver tag from GHCR + nudgebee_kubewatch_image=$(gh api -H "Accept: application/vnd.github+json" \ + "/orgs/nudgebee/packages/container/kubewatch/versions?per_page=20" \ + --jq '[.[].metadata.container.tags[]] | map(select(test("^[0-9]+\\.[0-9]+\\.[0-9]+"))) | .[0]') echo "nudgebee_kubewatch_image: $nudgebee_kubewatch_image" yq -i ".kubewatch.image.tag=\"$nudgebee_kubewatch_image\"" values.yaml - runbook_sidecar_image_tag=`aws ecr describe-images --repository-name nudgebee_runbook_sidecar_agent --filter tagStatus=TAGGED --query 'sort_by(imageDetails,& imagePushedAt)[-1].imageTags[0]' --region us-east-1 --output text --no-paginate` - echo "runbook_sidecar_image_tag: $runbook_sidecar_image_tag" - yq -i ".runner.runbook_sidecar_image_tag=\"$runbook_sidecar_image_tag\"" values.yaml - - name: Commit updated image tags run: | git config user.name "github-actions[bot]" @@ -84,13 +56,7 @@ jobs: if [[ -n $(git status --porcelain) ]]; then git add charts/nudgebee-agent/values.yaml - git commit -m "chore: update image tags for ${{ github.base_ref }} release - - Updated image tags to latest versions from ECR for ${{ github.base_ref }} branch. - - 🤖 Generated with [Claude Code](https://claude.ai/code) - - Co-Authored-By: Claude " + git commit -m "chore: update image tags for ${{ github.base_ref }} release" git push origin ${{ github.head_ref }} echo "Image tags updated and committed to PR branch" else @@ -116,7 +82,7 @@ jobs: repo: context.repo.repo, body: `📦 **Image Tags Updated** - I've automatically updated the image tags in \`charts/nudgebee-agent/values.yaml\` to the latest versions from ECR for the \`${{ github.base_ref }}\` branch. + I've automatically updated the image tags in \`charts/nudgebee-agent/values.yaml\` to the latest versions from GHCR for the \`${{ github.base_ref }}\` branch. The image tags are now synchronized with the latest builds and ready for release.` }); diff --git a/charts/nudgebee-agent/Chart.yaml b/charts/nudgebee-agent/Chart.yaml index 0f4337a..327fcb6 100644 --- a/charts/nudgebee-agent/Chart.yaml +++ b/charts/nudgebee-agent/Chart.yaml @@ -6,8 +6,8 @@ icon: https://nudgebee-documents.s3.amazonaws.com/images/Nudgebee-logo.png # these are set to the right value by .github/workflows/release.yaml # we use 0.0.1 as a placeholder for the version` because Helm wont allow `0.0.0` and we want to be able to run # `helm install` on development checkouts without updating this file. the version doesn't matter in that case anyway -version: 0.0.115 -appVersion: 0.0.115 +version: 0.1.0 +appVersion: 0.1.0 dependencies: - name: opencost version: 2.0.1 diff --git a/charts/nudgebee-agent/templates/_helpers.tpl b/charts/nudgebee-agent/templates/_helpers.tpl index 0674977..03152c0 100644 --- a/charts/nudgebee-agent/templates/_helpers.tpl +++ b/charts/nudgebee-agent/templates/_helpers.tpl @@ -1,72 +1,3 @@ -{{ define "robusta.configfile" -}} -playbook_repos: -{{ toYaml .Values.playbookRepos | indent 2 }} - -{{- if and (eq (len .Values.sinksConfig) 0) (and (not .Values.slackApiKey) (not .Values.robustaApiKey)) }} -{{- fail "At least one sink must be defined!" }} -{{- end }} - -{{- range .Values.sinksConfig }} - {{- if .robusta_sink }} - {{- if $.Values.disableCloudRouting }} - {{- fail "You cannot set `disableCloudRouting: true` when the Robusta UI sink (robusta_sink) is enabled, as this flag breaks the UI's behavior.\nPlease remove `disableCloudRouting: true` to continue installing." -}} - {{- end }} - {{- end }} -{{- end }} - -{{- if or .Values.slackApiKey .Values.robustaApiKey }} -{{- /* support old values files, prior to chart version 0.8.9 */}} -sinks_config: -{{- if .Values.slackApiKey }} -- slack_sink: - name: slack sink - api_key: {{ .Values.slackApiKey }} - slack_channel: {{ required "A valid .Values.slackChannel entry is required!" .Values.slackChannel }} -{{- end }} -{{- if .Values.robustaApiKey }} -- robusta_sink: - name: robusta_ui_sink - token: {{ .Values.robustaApiKey }} -{{- end }} - -{{ else }} -sinks_config: -{{ toYaml .Values.sinksConfig }} -{{- end }} - -global_config: - {{- if .Values.globalConfig }} -{{ toYaml .Values.globalConfig | indent 2 }} - {{- end }} - -alert_relabel: -{{ toYaml .Values.alertRelabel | indent 2 }} - -light_actions: -{{ toYaml .Values.lightActions | indent 2 }} - -active_playbooks: -{{- if .Values.playbooks }} - {{- fail "The `playbooks` value is deprecated. Rename `playbooks` to `customPlaybooks` and remove builtin playbooks which are now defined separately" -}} -{{- end }} - -{{- if .Values.priorityBuiltinPlaybooks }} -{{ toYaml .Values.priorityBuiltinPlaybooks | indent 2 }} -{{- end }} - -{{- if .Values.customPlaybooks }} -{{ toYaml .Values.customPlaybooks | indent 2 }} -{{- end }} - -{{- if .Values.builtinPlaybooks }} -{{ toYaml .Values.builtinPlaybooks | indent 2 }} -{{- end }} - -{{- if and .Values.enablePlatformPlaybooks .Values.platformPlaybooks }} -{{ toYaml .Values.platformPlaybooks | indent 2 }} -{{- end }} -{{ end }} - {{/* Create a fully qualified Prometheus server name in a similar way as prometheus/templates/_helpers.tpl creates "prometheus.server.fullname". @@ -130,79 +61,44 @@ app.kubernetes.io/instance: {{ .Release.Name }} {{- end }} {{/* -Common runner container template -Usage: include "nudgebee.runner.container" (dict "root" . "config" .Values.runner "containerName" "runner" "runnerMode" "BACKGROUND") +Runner container template. Invoked with root context: include "nudgebee.runner.container" . */}} {{- define "nudgebee.runner.container" -}} -{{- $root := .root }} -{{- $config := .config }} -{{- $containerName := .containerName }} -{{- $runnerMode := .runnerMode }} -{{- $apiServerEnabled := $root.Values.apiServer.enabled }} -- name: {{ $containerName }} - image: "{{ default $root.Values.runner.image.repository $config.image.repository }}:{{ $config.image.tag | default $root.Values.runner.image.tag | default $root.Chart.AppVersion }}" - imagePullPolicy: {{ default $root.Values.runner.imagePullPolicy $config.imagePullPolicy }} +- name: runner + image: "{{ .Values.runner.image.repository }}:{{ .Values.runner.image.tag | default .Chart.AppVersion }}" + imagePullPolicy: {{ .Values.runner.imagePullPolicy }} securityContext: allowPrivilegeEscalation: false capabilities: {} privileged: false readOnlyRootFilesystem: false env: - - name: PLAYBOOKS_CONFIG_FILE_PATH - value: /etc/robusta/config/active_playbooks.yaml - - name: RELEASE_NAME - value: {{ include "nudgebee-agent.fullname" $root | quote }} - - name: PROMETHEUS_ENABLED - value: {{ $root.Values.enablePrometheusStack | quote}} - - name: SEND_ADDITIONAL_TELEMETRY - value: {{ default $root.Values.runner.sendAdditionalTelemetry $config.sendAdditionalTelemetry | quote }} - - name: LOG_LEVEL - value: {{ default $root.Values.runner.log_level $config.log_level }} - name: INSTALLATION_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace - {{- if $root.Values.disableCloudRouting }} - - name: CLOUD_ROUTING - value: "False" - {{- end }} - {{- if not $root.Values.monitorHelmReleases }} - - name: DISABLE_HELM_MONITORING - value: "True" - {{- end }} - {{- if $root.Values.scaleAlertsProcessing }} - - name: ALERTS_WORKERS_POOL - value: "True" - {{- end }} - name: RUNNER_VERSION - value: {{ $root.Chart.AppVersion }} - - name: KRR_IMAGE_OVERRIDE - value: {{ default $root.Values.runner.krr_image_override $config.krr_image_override }} - - name: IMAGE_REGISTRY - value: {{ default $root.Values.runner.image_registry $config.image_registry }} + value: {{ .Chart.AppVersion }} - name: WEBSOCKET_RELAY_ADDRESS - value: {{ default $root.Values.runner.relay_address $config.relay_address }} - - name: PROFILE_IMAGE_TAG_OVERRIDE - value: {{ default $root.Values.runner.profiler_image_override $config.profiler_image_override }} - - name: KUBEPUG_IMAGE_OVERRIDE - value: {{ default $root.Values.runner.kubepug_image_override $config.kubepug_image_override }} - - name: NOVA_IMAGE_OVERRIDE - value: {{ default $root.Values.runner.nova_image_override $config.nova_image_override }} - - name: RUNBOOK_SIDECAR_IMAGE - value: {{ default $root.Values.runner.image_registry $config.image_registry }}/nudgebee_runbook_sidecar_agent:{{ default $root.Values.runner.runbook_sidecar_image_tag $config.runbook_sidecar_image_tag }} - {{- if default $root.Values.runner.victoria_metrics_enabled $config.victoria_metrics_enabled }} - - name: VICTORIA_METRICS_CONFIGURED - value: "True" - {{- end }} - {{- if or (index (default (dict) (index $root.Values "opentelemetry-collector")) "enabled") (default $root.Values.runner.clickhouse_enabled $config.clickhouse_enabled) }} - {{- $clickhouseSecret := default $root.Values.runner.clickhouse_secret $config.clickhouse_secret }} + value: {{ .Values.runner.relay_address }} + - name: SCANNERS_ENABLED + value: "true" + - name: SCANNER_NAMESPACE + value: {{ .Release.Namespace }} + - name: SCANNER_SERVICE_ACCOUNT + value: {{ include "nudgebee-agent.fullname" . }}-runner-service-account + - name: MUTATE_ENABLED + value: "true" + - name: RSA_PRIVATE_KEY_PATH + value: /etc/robusta/auth/prv + {{- if or (index (default (dict) (index .Values "opentelemetry-collector")) "enabled") .Values.runner.clickhouse_enabled }} + {{- $clickhouseSecret := .Values.runner.clickhouse_secret }} {{- if not $clickhouseSecret }} - {{- $clickhouseSecret = include "nudgebee-agent.clickhouse.servicename" $root }} + {{- $clickhouseSecret = include "nudgebee-agent.clickhouse.servicename" . }} {{- end }} - {{- $additionalEnvVars := default $root.Values.runner.additional_env_vars $config.additional_env_vars }} {{- $envVarNames := list }} - {{- if and $additionalEnvVars (kindIs "slice" $additionalEnvVars) }} - {{- range $additionalEnvVars }} + {{- if and .Values.runner.additional_env_vars (kindIs "slice" .Values.runner.additional_env_vars) }} + {{- range .Values.runner.additional_env_vars }} {{- if and (kindIs "map" .) (hasKey . "name") }} {{- $envVarNames = append $envVarNames .name }} {{- end }} @@ -210,122 +106,68 @@ Usage: include "nudgebee.runner.container" (dict "root" . "config" .Values.runne {{- end }} {{- if not (has "CLICKHOUSE_HOST" $envVarNames) }} - name: CLICKHOUSE_HOST - value: {{ include "nudgebee-agent.clickhouse.servicename" $root }} + value: {{ include "nudgebee-agent.clickhouse.servicename" . }} {{- end }} - name: CLICKHOUSE_PASSWORD valueFrom: secretKeyRef: - name: {{ if $root.Values.runner.clickhouse_password }}{{ include "nudgebee-agent.fullname" $root }}-runner-secret{{ else }}{{ $clickhouseSecret }}{{ end }} - key: {{ if $root.Values.runner.clickhouse_password }}CLICKHOUSE_PASSWORD{{ else }}admin-password{{ end }} - {{- end }} - {{- if kindIs "string" $root.Values.runner.additional_env_vars }} - {{- fail "The `additional_env_vars` string value is deprecated. Change the `additional_env_vars` value to an array" -}} + name: {{ if .Values.runner.clickhouse_password }}{{ include "nudgebee-agent.fullname" . }}-runner-secret{{ else }}{{ $clickhouseSecret }}{{ end }} + key: {{ if .Values.runner.clickhouse_password }}CLICKHOUSE_PASSWORD{{ else }}admin-password{{ end }} {{- end }} - {{- if and (hasKey $config "additional_env_vars") (kindIs "string" $config.additional_env_vars) }} + {{- if kindIs "string" .Values.runner.additional_env_vars }} {{- fail "The `additional_env_vars` string value is deprecated. Change the `additional_env_vars` value to an array" -}} {{- end }} - {{- if $apiServerEnabled }} - - name: RUNNER_DUAL_MODE_ENABLED - value: "true" - - name: RUNNER_MODE - value: "{{ $runnerMode }}" - {{- end }} - {{- if eq $containerName "apiserver" }} - - name: RUNNER_BACKGROUND_SERVER_URL - value: "http://{{ include "nudgebee-agent.fullname" $root }}-runner:80" - {{- end }} - {{- if and (hasKey $config "additional_env_vars") $config.additional_env_vars }} - {{ toYaml $config.additional_env_vars | nindent 4 }} - {{- else if $root.Values.runner.additional_env_vars }} - {{ toYaml $root.Values.runner.additional_env_vars | nindent 4 }} + {{- if .Values.runner.additional_env_vars }} + {{ toYaml .Values.runner.additional_env_vars | nindent 4 }} {{- end }} envFrom: - secretRef: - name: {{ include "nudgebee-agent.fullname" $root }}-runner-secret + name: {{ include "nudgebee-agent.fullname" . }}-runner-secret optional: true - {{- if and (hasKey $config "additional_env_froms") $config.additional_env_froms }} - {{ toYaml $config.additional_env_froms | nindent 2 }} - {{- else if $root.Values.runner.additional_env_froms }} - {{ toYaml $root.Values.runner.additional_env_froms | nindent 2 }} + {{- if .Values.runner.additional_env_froms }} + {{ toYaml .Values.runner.additional_env_froms | nindent 2 }} {{- end }} volumeMounts: - name: auth-config-secret mountPath: /etc/robusta/auth - - name: playbooks-config-secret - mountPath: /etc/robusta/config - {{- if $root.Values.playbooksPersistentVolume }} - - name: persistent-playbooks-storage - mountPath: /etc/robusta/playbooks/storage - {{- end }} - {{- if and (hasKey $config "extraVolumeMounts") $config.extraVolumeMounts }} - {{- with $config.extraVolumeMounts }} - {{- toYaml . | nindent 4 }} - {{- end }} - {{- else }} - {{- with $root.Values.runner.extraVolumeMounts }} + {{- with .Values.runner.extraVolumeMounts }} {{- toYaml . | nindent 4 }} {{- end }} - {{- end }} lifecycle: preStop: exec: command: ["bash", "-c", "kill -SIGINT 1"] resources: requests: - cpu: {{ $config.resources.requests.cpu }} - memory: {{ if $root.Values.isSmallCluster }}"512Mi"{{ else }}{{ $config.resources.requests.memory | quote }}{{ end }} + cpu: {{ .Values.runner.resources.requests.cpu }} + memory: {{ if .Values.isSmallCluster }}"512Mi"{{ else }}{{ .Values.runner.resources.requests.memory | quote }}{{ end }} limits: - {{ if $config.resources.limits.memory }}memory: {{ if $root.Values.isSmallCluster }}"512Mi"{{ else if $config.resources.limits.memory }}{{ $config.resources.limits.memory | quote }}{{ else }}{{ $config.resources.requests.memory | quote }}{{ end }} + {{ if .Values.runner.resources.limits.memory }}memory: {{ if .Values.isSmallCluster }}"512Mi"{{ else }}{{ .Values.runner.resources.limits.memory | quote }}{{ end }} {{ end }} - {{ if $config.resources.limits.cpu }}cpu: {{ $config.resources.limits.cpu | quote }}{{ end }} + {{ if .Values.runner.resources.limits.cpu }}cpu: {{ .Values.runner.resources.limits.cpu | quote }}{{ end }} {{- end }} {{/* -Common runner volumes template -Usage: include "nudgebee.runner.volumes" (dict "root" . "config" .Values.apiServer) +Runner volumes template. Invoked with root context. */}} {{- define "nudgebee.runner.volumes" -}} -{{- $root := .root }} -{{- $config := .config }} volumes: - - name: playbooks-config-secret - secret: - secretName: {{ include "nudgebee-agent.fullname" $root }}-playbooks-config-secret - optional: true - name: auth-config-secret secret: - secretName: {{ include "nudgebee-agent.fullname" $root }}-auth-config-secret + secretName: {{ include "nudgebee-agent.fullname" . }}-auth-config-secret optional: true - {{- if $root.Values.playbooksPersistentVolume }} - - name: persistent-playbooks-storage - persistentVolumeClaim: - claimName: persistent-playbooks-pv-claim - {{- end }} - {{- if and (hasKey $config "extraVolumes") $config.extraVolumes }} - {{- with $config.extraVolumes }} - {{- toYaml . | nindent 2 }} - {{- end }} - {{- else }} - {{- with $root.Values.runner.extraVolumes }} + {{- with .Values.runner.extraVolumes }} {{- toYaml . | nindent 2 }} {{- end }} - {{- end }} {{- end }} {{/* -Common runner imagePullSecrets template -Usage: include "nudgebee.runner.imagePullSecrets" (dict "root" . "config" .Values.apiServer) +Runner imagePullSecrets template. Invoked with root context. */}} {{- define "nudgebee.runner.imagePullSecrets" -}} -{{- $root := .root }} -{{- $config := .config }} -{{- if or $root.Values.runner.imagePullSecrets $config.imagePullSecrets }} +{{- with .Values.runner.imagePullSecrets }} imagePullSecrets: -{{- if $config.imagePullSecrets }} -{{- toYaml $config.imagePullSecrets | nindent 0 }} -{{- else }} -{{- toYaml $root.Values.runner.imagePullSecrets | nindent 0 }} -{{- end }} +{{- toYaml . | nindent 0 }} {{- end }} {{- end }} diff --git a/charts/nudgebee-agent/templates/apiserver.yaml b/charts/nudgebee-agent/templates/apiserver.yaml deleted file mode 100644 index fc288f2..0000000 --- a/charts/nudgebee-agent/templates/apiserver.yaml +++ /dev/null @@ -1,78 +0,0 @@ -{{- if .Values.apiServer.enabled }} -apiVersion: apps/v1 -kind: Deployment -metadata: - name: {{ include "nudgebee-agent.fullname" . }}-apiserver - namespace: {{ .Release.Namespace }} - labels: - app: {{ include "nudgebee-agent.fullname" . }}-apiserver -spec: - replicas: 1 - selector: - matchLabels: - app: {{ include "nudgebee-agent.fullname" . }}-apiserver - template: - metadata: - labels: - app: {{ include "nudgebee-agent.fullname" . }}-apiserver - nudgebeeComponent: "apiserver" - annotations: - rollme: {{ randAlphaNum 5 | quote }} - {{- if or .Values.apiServer.annotations .Values.globalConfig.custom_annotations }} - {{- if .Values.apiServer.annotations}} {{ toYaml .Values.apiServer.annotations | nindent 8 }} - {{- end }} - {{- if .Values.globalConfig.custom_annotations }} {{ toYaml .Values.globalConfig.custom_annotations | nindent 8 }} - {{- end }} - {{- end }} - spec: - serviceAccountName: {{ include "nudgebee-agent.fullname" . }}-runner-service-account - automountServiceAccountToken: {{ .Values.automountServiceAccountToken }} - {{- include "nudgebee.runner.imagePullSecrets" (dict "root" . "config" .Values.apiServer) | nindent 6 }} - containers: - {{- include "nudgebee.runner.container" (dict "root" . "config" .Values.apiServer "containerName" "apiserver" "runnerMode" "FOREGROUND") | nindent 6 }} - {{- include "nudgebee.runner.volumes" (dict "root" . "config" .Values.apiServer) | nindent 6 }} - {{- if .Values.apiServer.nodeSelector }} - nodeSelector: {{ toYaml .Values.apiServer.nodeSelector | nindent 8 }} - {{- end }} - {{- if .Values.apiServer.affinity }} - affinity: {{ toYaml .Values.apiServer.affinity | nindent 8 }} - {{- end }} - {{- if .Values.apiServer.tolerations }} - tolerations: {{ toYaml .Values.apiServer.tolerations | nindent 8 }} - {{- end }} ---- -apiVersion: v1 -kind: Service -metadata: - name: {{ include "nudgebee-agent.fullname" . }}-apiserver - namespace: {{ .Release.Namespace }} - labels: - app: {{ include "nudgebee-agent.fullname" . }}-apiserver - target: {{ include "nudgebee-agent.fullname" . }}-apiserver -spec: - selector: - app: {{ include "nudgebee-agent.fullname" . }}-apiserver - ports: - - name: http - protocol: TCP - port: 80 - targetPort: 5000 ---- -{{ if and (.Values.enableServiceMonitors) (or (.Values.enablePrometheusStack) (.Capabilities.APIVersions.Has "monitoring.coreos.com/v1/ServiceMonitor") ) }} -apiVersion: monitoring.coreos.com/v1 -kind: ServiceMonitor -metadata: - name: {{ include "nudgebee-agent.fullname" . }}-apiserver-service-monitor - labels: - release: {{ .Release.Name }} -spec: - endpoints: - - path: /metrics - port: http - selector: - matchLabels: - app: {{ include "nudgebee-agent.fullname" . }}-apiserver - targetLabels: - - target -{{ end }} -{{- end }} \ No newline at end of file diff --git a/charts/nudgebee-agent/templates/daemonset.yaml b/charts/nudgebee-agent/templates/daemonset.yaml index 3851464..e94a51e 100644 --- a/charts/nudgebee-agent/templates/daemonset.yaml +++ b/charts/nudgebee-agent/templates/daemonset.yaml @@ -1,4 +1,4 @@ -{{- if and .Values.nodeAgent.enabled }} +{{- if .Values.nodeAgent.enabled }} apiVersion: apps/v1 kind: DaemonSet metadata: @@ -27,13 +27,15 @@ spec: prometheus.io/port: '80' spec: serviceAccountName: {{ include "nudgebee-agent.fullname" . }}-runner-service-account - {{- with .Values.imagePullSecrets }} + {{- with .Values.nodeAgent.imagePullSecrets }} imagePullSecrets: {{- toYaml . | nindent 8 }} {{- end }} tolerations: - operator: Exists - priorityClassName: "{{ .Values.priorityClassName }}" + {{- if .Values.nodeAgent.priorityClassName }} + priorityClassName: {{ .Values.nodeAgent.priorityClassName | quote }} + {{- end }} hostPID: true containers: - name: node-agent @@ -51,7 +53,7 @@ spec: - name: LOGS_ENDPOINT value: "{{ .Values.nodeAgent.logsEndpoint }}" {{- end }} - {{- if and .Values.nodeAgent.profilesEndpoint }} + {{- if .Values.nodeAgent.profilesEndpoint }} - name: PROFILES_ENDPOINT value: "{{ .Values.nodeAgent.profilesEndpoint }}" {{- end }} @@ -65,7 +67,7 @@ spec: {{- end }} {{- if .Values.nodeAgent.apiKey }} - name: API_KEY - value: "{{ .Values.apiKey }}" + value: "{{ .Values.nodeAgent.apiKey }}" {{- end }} {{- with .Values.nodeAgent.env }} {{- . | toYaml | nindent 12 }} diff --git a/charts/nudgebee-agent/templates/playbooks-config.yaml b/charts/nudgebee-agent/templates/playbooks-config.yaml deleted file mode 100644 index 8bea88d..0000000 --- a/charts/nudgebee-agent/templates/playbooks-config.yaml +++ /dev/null @@ -1,12 +0,0 @@ -apiVersion: v1 -kind: Secret -metadata: - name: {{ include "nudgebee-agent.fullname" . }}-playbooks-config-secret - namespace: {{ .Release.Namespace }} - labels: - {{- include "nudgebee-agent.labels" . | nindent 4 }} - component: playbooks-config -type: Opaque -data: - active_playbooks.yaml: |- - {{ include "robusta.configfile" . | b64enc }} diff --git a/charts/nudgebee-agent/templates/prometheus-alert-manager-config.yaml b/charts/nudgebee-agent/templates/prometheus-alert-manager-config.yaml deleted file mode 100644 index c19fe64..0000000 --- a/charts/nudgebee-agent/templates/prometheus-alert-manager-config.yaml +++ /dev/null @@ -1,22 +0,0 @@ -{{- if (and (not .Values.runner.victoria_metrics_enabled) (.Values.alertmanager.create_nb_alert_config)) }} -apiVersion: monitoring.coreos.com/v1alpha1 -kind: AlertmanagerConfig -metadata: - name: {{ include "nudgebee-agent.fullname" . }}-alert-config - namespace: {{ .Release.Namespace }} - labels: - {{- include "nudgebee-agent.labels" . | nindent 4 }} - component: alert-manager-config -spec: - route: - groupBy: [] - repeatInterval: 1h - receiver: 'nudgebee-agent' - receivers: - - name: 'nudgebee-agent' - matchers: - - severity=~".*" - webhookConfigs: - - url: 'http://{{ include "nudgebee-agent.fullname" . }}-runner.{{ .Release.Namespace }}.svc/api/alerts' - sendResolved: true -{{- end }} \ No newline at end of file diff --git a/charts/nudgebee-agent/templates/prometheus-alert-rule.yaml b/charts/nudgebee-agent/templates/prometheus-alert-rule.yaml index ca9397e..198192c 100644 --- a/charts/nudgebee-agent/templates/prometheus-alert-rule.yaml +++ b/charts/nudgebee-agent/templates/prometheus-alert-rule.yaml @@ -1,4 +1,4 @@ -{{- if (and (not (default false .Values.runner.victoria_metrics_enabled)) (default false .Values.alertmanager.create_nb_default_rules)) }} +{{- if (default false .Values.alertmanager.create_nb_default_rules) }} apiVersion: monitoring.coreos.com/v1 kind: PrometheusRule metadata: diff --git a/charts/nudgebee-agent/templates/runner.yaml b/charts/nudgebee-agent/templates/runner.yaml index 7744132..ab5f7e0 100644 --- a/charts/nudgebee-agent/templates/runner.yaml +++ b/charts/nudgebee-agent/templates/runner.yaml @@ -29,9 +29,9 @@ spec: spec: serviceAccountName: {{ include "nudgebee-agent.fullname" . }}-runner-service-account automountServiceAccountToken: {{ .Values.automountServiceAccountToken }} - {{- include "nudgebee.runner.imagePullSecrets" (dict "root" . "config" .Values.runner) | nindent 6 }} + {{- include "nudgebee.runner.imagePullSecrets" . | nindent 6 }} containers: - {{- include "nudgebee.runner.container" (dict "root" . "config" .Values.runner "containerName" "runner" "runnerMode" "BACKGROUND") | nindent 6 }} + {{- include "nudgebee.runner.container" . | nindent 6 }} {{- if .Values.grafanaRenderer.enableContainer }} - name: grafana-renderer image: {{ .Values.grafanaRenderer.image }} @@ -50,7 +50,7 @@ spec: memory: {{ if .Values.isSmallCluster }}"64Mi"{{ else if .Values.grafanaRenderer.resources.limits.memory }}{{ .Values.grafanaRenderer.resources.limits.memory | quote }}{{ else }}{{ .Values.grafanaRenderer.resources.requests.memory | quote }}{{ end }} {{ if .Values.grafanaRenderer.resources.limits.cpu }}cpu: {{ .Values.grafanaRenderer.resources.limits.cpu | quote }}{{ end }} {{- end }} - {{- include "nudgebee.runner.volumes" (dict "root" . "config" .Values.runner) | nindent 6 }} + {{- include "nudgebee.runner.volumes" . | nindent 6 }} {{- if .Values.runner.nodeSelector }} nodeSelector: {{ toYaml .Values.runner.nodeSelector | nindent 8 }} {{- end }} @@ -60,20 +60,6 @@ spec: {{- if .Values.runner.tolerations }} tolerations: {{ toYaml .Values.runner.tolerations | nindent 8 }} {{- end }} -{{- if .Values.playbooksPersistentVolume }} ---- -apiVersion: v1 -kind: PersistentVolumeClaim -metadata: - name: persistent-playbooks-pv-claim - namespace: {{ .Release.Namespace }} -spec: - accessModes: - - ReadWriteOnce - resources: - requests: - storage: {{ if .Values.isSmallCluster }}"512Mi"{{ else }}{{ .Values.playbooksPersistentVolumeSize }}{{ end }} -{{- end }} --- apiVersion: v1 kind: Service @@ -121,39 +107,23 @@ metadata: namespace: {{ .Release.Namespace }} type: Opaque stringData: - {{ if .Values.runner.sentry_dsn }} - SENTRY_DSN: {{ .Values.runner.sentry_dsn }} - {{ end }} NUDGEBEE_ENDPOINT: {{ .Values.runner.nudgebee.endpoint }} NUDGEBEE_AUTH_SECRET_KEY: {{ .Values.runner.nudgebee.auth_secret_key }} - PUBLISHING_WINDOW: {{ .Values.runner.nudgebee.publish_window | quote }} - {{ if .Values.runner.grafana.password }} + {{- if .Values.runner.grafana.password }} GRAFANA_PASSWORD: {{ .Values.runner.grafana.password | quote }} - {{ end }} - {{ if .Values.runner.grafana.apikey }} - GRAFANA_APIKEY: {{ .Values.runner.grafana.apikey | quote }} - {{ end }} - {{ if .Values.runner.grafana.username }} + {{- end }} + {{- if .Values.runner.grafana.username }} GRAFANA_USERNAME: {{ .Values.runner.grafana.username | quote }} - {{ end }} - {{ if .Values.runner.grafana.url }} + {{- end }} + {{- if .Values.runner.grafana.url }} GRAFANA_URL: {{ .Values.runner.grafana.url | quote }} - {{ end }} - {{ if .Values.runner.grafana.enabled }} - GRAFANA_ENABLED: "True" - {{ end }} - {{ if .Values.runner.grafana.extra_headers }} + {{- end }} + {{- if .Values.runner.grafana.extra_headers }} GRAFANA_EXTRA_HEADER: {{ .Values.runner.grafana.extra_headers | quote }} - {{ end }} + {{- end }} {{- if .Values.runner.loki.url }} LOKI_URL: {{ .Values.runner.loki.url }} {{- end }} - {{- if .Values.runner.loki.username }} - LOKI_USERNAME: {{ .Values.runner.loki.username }} - {{- end }} - {{- if .Values.runner.loki.password }} - LOKI_PASSWORD: {{ .Values.runner.loki.password }} - {{- end }} {{- if .Values.runner.loki.headers }} LOKI_EXTRA_HEADER: {{ .Values.runner.loki.headers }} {{- end }} @@ -166,40 +136,18 @@ stringData: {{- if .Values.runner.es.username }} ELASTICSEARCH_USERNAME: {{ .Values.runner.es.username }} {{- end }} - {{- if .Values.runner.es.headers }} - ELASTICSEARCH_HEADER: {{ .Values.runner.es.headers }} - {{- end }} {{- if .Values.runner.es.apiKey }} ELASTICSEARCH_APIKEY: {{ .Values.runner.es.apiKey }} {{- end }} - {{- if .Values.runner.es.use_ssl }} - ELASTICSEARCH_SSL_ENABLED: "True" - {{- end }} - {{- if .Values.runner.es.verify_cert }} - ELASTICSEARCH_SSL_VERIFY: "True" - {{- end }} - {{- if .Values.runner.es.enabled }} - ELASTICSEARCH_ENABLED: "True" - {{- end }} - {{- if .Values.runner.signoz.enabled }} - SIGNOZ_ENABLED: "True" - {{- end }} {{- if .Values.runner.signoz.apiKey }} - SIGNOZ_API_KEY: {{ .Values.runner.signoz.apiKey }} + SIGNOZ_API_KEY: {{ .Values.runner.signoz.apiKey }} {{- end }} {{- if .Values.runner.signoz.url }} SIGNOZ_URL: {{ .Values.runner.signoz.url }} {{- end }} - {{- if .Values.runner.signoz.user_email }} - SIGNOZ_USER: {{ .Values.runner.signoz.user_email }} - {{- end }} - {{- if .Values.runner.signoz.user_password }} - SIGNOZ_PASSWORD: {{ .Values.runner.signoz.user_password }} - {{- end }} - CLICKHOUSE_ENABLED: "{{ if or (index (default (dict) (index .Values "opentelemetry-collector")) "enabled") .Values.runner.clickhouse_enabled }}True{{ else }}False{{ end }}" {{- if and (or (index (default (dict) (index .Values "opentelemetry-collector")) "enabled") .Values.runner.clickhouse_enabled) (hasKey .Values.runner "clickhouse_password") }} CLICKHOUSE_PASSWORD: {{ .Values.runner.clickhouse_password }} {{- end }} - {{- if and .Values.runner.trace_table .Values.runner.trace_table }} + {{- if .Values.runner.trace_table }} TRACE_TABLE: {{ .Values.runner.trace_table }} {{- end }} diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index c79f5dd..d3badec 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -1,554 +1,16 @@ # Global name overrides for all resources nameOverride: "" fullnameOverride: "" -playbookRepos: {} enablePrometheusStack: true -# sinks configurations -sinksConfig: - - nudge_bee_sink: - name: nudgebee_webhook_sink - size_limit: 4380 -# global parameters -clusterName: "" -clusterZone: "" automountServiceAccountToken: true globalConfig: - grafana_url: "" - grafana_api_key: "" - grafana_dashboard_uid: "" - prometheus_url: "" - account_id: "" - signing_key: "" custom_annotations: {} - regex_replacement_style: SAME_LENGTH_ASTERISKS - regex_replacer_patterns: - - name: JWT - regex: "^(?:[\\w-]*\\.){2}[\\w-]*$" - - name: BASE64 - regex: "^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?$" - - name: google-api-key - regex: "AIza[0-9A-Za-z-_]{35}" - - name: google-auth-code - regex: "1/[0-9A-Za-z-]{43}|1/[0-9A-Za-z-]{64}" -alertRelabel: [] -# safe actions to enable authenticated users to run -lightActions: - - related_pods - - prometheus_enricher - - add_silence - - delete_pod - - delete_silence - - get_silences - - logs_enricher - - pod_events_enricher - - deployment_events_enricher - - job_events_enricher - - job_pod_enricher - - get_resource_yaml - - node_cpu_enricher - - node_disk_analyzer - - node_running_pods_enricher - - node_allocatable_resources_enricher - - node_status_enricher - - node_graph_enricher - - oomkilled_container_graph_enricher - - pod_oom_killer_enricher - - oomkilled_container_matrix_enricher - - pod_node_metrics_enricher - - noisy_neighbours_enricher - - oom_killer_enricher - - volume_analysis - - python_profiler - - pod_ps - - python_memory - - debugger_stack_trace - - python_process_inspector - - prometheus_alert - - create_pvc_snapshot - - resource_events_enricher - - delete_job - - list_resource_names - - node_dmesg_enricher - - status_enricher - - popeye_scan - - krr_scan - - kube_bench_scan - - handle_alertmanager_event - - drain - - cordon - - uncordon - - rollout_restart - - unused_pv - - image_scanner - - pod_enricher - - logs_enricher - - volume_analyzer - - replica_rightsizing - - foreign_logs_enricher - - replace_workload - - delete_workload - - pod_bash_enricher - - node_bash_enricher - - pod_script_run_enricher - - python_debugger - - prometheus_labels - - create_or_replace_alert_rule - - pod_node_event_enricher - - pod_profiler - - delete_alert_rule - - pod_ephemeral_enricher - - get_resource - - prometheus_queries_enricher - - k8s_version_upgrade - - helm_chart_upgrade - - certificate_scanner - - trivy_cis_scan - - create_workload - - rightsize_pvc - - continuous_rightsizing - - kubectl_command_executor - - list_k8s_pdb - - k8s_helm_compatibility_check - - pod_node_metrics_enricher - - api_traces_enricher - - neighboring_connected_logs_enricher - - api_traces_enricher_v2 - - pod_metric_enricher - - neighboring_workload_health_enricher -# install opencost , along with nudgebee ? -enableOpenCostStack: false enableServiceMonitors: true -monitorHelmReleases: false -# scale alerts processing. -# Used to support clusters with high load of alerts. When used, the runner will consume more memory -scaleAlertsProcessing: false -# Enable loading playbooks to a persistent volume -playbooksPersistentVolume: false -playbooksPersistentVolumeSize: 4Gi -# priority builtin playbooks for running before all playbooks -priorityBuiltinPlaybooks: - # playbooks for prometheus silencing - - triggers: - - on_prometheus_alert: - status: "all" - actions: - - name_silencer: - names: ["Watchdog", "KubeSchedulerDown", "KubeControllerManagerDown", "InfoInhibitor"] - # Silences for small/local clusters - - triggers: - - on_prometheus_alert: - status: "all" - k8s_providers: ["Minikube", "Kind", "RancherDesktop"] - actions: - - name_silencer: - names: ["etcdInsufficientMembers", "etcdMembersDown", "NodeClockNotSynchronising", "PrometheusTSDBCompactionsFailing"] - # Silences for specific providers - - triggers: - - on_prometheus_alert: - status: "all" - k8s_providers: ["GKE"] - actions: - - name_silencer: - names: ["KubeletDown"] - - triggers: - - on_prometheus_alert: - alert_name: CPUThrottlingHigh - k8s_providers: ["DigitalOcean"] - pod_name_prefix: "do-node-agent" - actions: - - silence_alert: - log_silence: true - # Smart Silences - - triggers: - - on_prometheus_alert: - alert_name: TargetDown - actions: - - target_down_dns_silencer: {} -# custom user playbooks -customPlaybooks: - - triggers: - - on_deployment_all_changes: {} - - on_daemonset_all_changes: {} - - on_statefulset_all_changes: {} - - on_replicaset_all_changes: {} - - on_pod_all_changes: {} - - on_node_all_changes: {} - - on_job_all_changes: {} - - on_rollout_all_changes: {} - actions: - - resource_events_diff: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 12 * * 1" # every week on monday at 02:00 - actions: - - popeye_scan: - spinach: | - popeye: - excludes: - v1/pods: - - name: rx:kube-system - - triggers: - - on_kubernetes_warning_event_create: - exclude: ["NodeSysctlChange"] - actions: - - event_report: {} - - event_resource_events: {} - - triggers: - - on_job_failure: {} - actions: - - create_finding: - aggregation_key: "job_failure" - title: "Job Failed" - - job_info_enricher: {} - - job_events_enricher: {} - - job_pod_enricher: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 12 * * *" # every day at 12:00 - actions: - - certificate_scanner: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 0 * * 1" # At 00:00 on every monday - actions: - - k8s_version_upgrade: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 0 * * 1" # At 00:00 on every monday - actions: - - k8s_helm_compatibility_check: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 12 * * *" # every day at 12:00 - actions: - - helm_chart_upgrade: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 0 * * *" # every day at 00:00 - actions: - - unused_pv: {} - - triggers: - - on_deployment_all_changes: {} - - on_daemonset_all_changes: {} - - on_statefulset_all_changes: {} - - on_ingress_all_changes: {} - - on_rollout_all_changes: {} - actions: - - resource_babysitter: {} - - triggers: - - on_schedule: - cron_schedule_repeat: - cron_expression: "0 8 * * 1" # every monday at 8:00 - actions: - - trivy_cis_scan: {} -# builtin playbooks -builtinPlaybooks: - # playbooks for non-prometheus based monitoring - - triggers: - - on_pod_crash_loop: - restart_reason: "CrashLoopBackOff" - actions: - - report_crash_loop: {} - - resource_events_enricher: {} - - pod_enricher: {} - - logs_enricher: - previous: true - - impacted_services_enricher: {} - - triggers: - - on_image_pull_backoff: {} - actions: - - image_pull_backoff_reporter: {} - - resource_events_enricher: {} - - pod_enricher: {} - # playbooks for non-prometheus based monitoring that use prometheus for enrichment - - triggers: - - on_pod_oom_killed: - rate_limit: 3600 - actions: - - pod_oom_killer_enricher: {} - - logs_enricher: - previous: true - - noisy_neighbours_enricher: - resource_type: Memory - - oomkilled_container_matrix_enricher: - resource_type: Memory - delay_graph_s: 30 - - pod_node_metrics_enricher: - resource_type: Memory - - pod_node_metrics_enricher: - resource_type: MemoryRequest - - pod_enricher: {} - - resource_events_enricher: {} - - pod_node_event_enricher: {} - stop: true - # playbooks for prometheus alerts enrichment - - triggers: - - on_prometheus_alert: - alert_name: KubePodCrashLooping - actions: - - logs_enricher: - previous: true - - pod_events_enricher: {} - - pod_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: PrometheusRuleFailures - actions: - - prometheus_rules_enricher: {} - - logs_enricher: - filter_regex: ".*Evaluating rule failed.*" - - triggers: - - on_prometheus_alert: - alert_name: KubeCPUOvercommit - actions: - - cpu_overcommited_enricher: {} - - cluster_cpu_requests_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeMemoryOvercommit - actions: - - memory_overcommited_enricher: {} - - cluster_memory_requests_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubePodNotReady - actions: - - logs_enricher: {} - - pod_events_enricher: {} - - pod_issue_investigator: {} - - pod_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeContainerWaiting - actions: - - pod_issue_investigator: {} - - pod_events_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeHpaReplicasMismatch - actions: - - hpa_mismatch_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeJobFailed - - on_prometheus_alert: - alert_name: KubeJobCompletion - - on_prometheus_alert: - alert_name: KubeJobNotCompleted - actions: - - job_info_enricher: {} - - job_events_enricher: {} - - job_pod_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeAggregatedAPIDown - actions: - - api_service_status_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeletTooManyPods - actions: - - node_pods_capacity_enricher: {} - - alert_explanation_enricher: - alert_explanation: "The node is approaching the maximum number of scheduled pods." - recommended_resolution: "Verify that you defined proper resource requests for your workloads. If pods cannot be scheduled, add more nodes to your cluster." - - triggers: - - on_prometheus_alert: - alert_name: KubeNodeNotReady - actions: - - node_allocatable_resources_enricher: {} - - node_running_pods_enricher: {} - - status_enricher: - show_details: true - - triggers: - - on_prometheus_alert: - alert_name: KubeNodeUnreachable - actions: - - resource_events_enricher: {} - - node_status_enricher: {} - # Prometheus Statefulset playbooks - - triggers: - - on_prometheus_alert: - alert_name: KubeStatefulSetReplicasMismatch - actions: - - resource_events_enricher: - dependent_pod_mode: true - - statefulset_replicas_enricher: {} - - pod_issue_investigator: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeStatefulSetUpdateNotRolledOut - actions: - - related_pods: {} - - statefulset_replicas_enricher: {} - # Prometheus Daemonset playbooks - - triggers: - - on_prometheus_alert: - alert_name: KubeDaemonSetRolloutStuck - actions: - - resource_events_enricher: - dependent_pod_mode: true - - related_pods: {} - - daemonset_status_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubernetesDaemonsetMisscheduled - - on_prometheus_alert: - alert_name: KubeDaemonSetMisScheduled - actions: - - daemonset_status_enricher: {} - - daemonset_misscheduled_analysis_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: HostHighCpuLoad - actions: - - node_cpu_enricher: {} - - alert_graph_enricher: - resource_type: CPU - item_type: Node - - triggers: - - on_prometheus_alert: - alert_name: HostOomKillDetected - actions: - - oom_killer_enricher: {} - - alert_graph_enricher: - resource_type: Memory - item_type: Node - - triggers: - - on_prometheus_alert: - alert_name: KubePersistentVolumeFillingUp - actions: - - prometheus_pvc_event_enricher: {} - sinks: - - "nudgebee_webhook_sink" - - triggers: - - on_prometheus_alert: - alert_name: KubernetesVolumeOutOfDiskSpace - actions: - - prometheus_pvc_event_enricher: {} - sinks: - - "nudgebee_webhook_sink" - - triggers: - - on_prometheus_alert: - alert_name: CPUThrottlingHigh - status: "all" # sometimes this enricher silences the alert, so we need to silence it regardless of status - actions: - - cpu_throttling_analysis_enricher: {} - - pod_metric_enricher: - resource_type: CPU - - pod_node_metrics_enricher: - resource_type: CPU - - pod_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubernetesDeploymentReplicasMismatch - - on_prometheus_alert: - alert_name: KubeDeploymentReplicasMismatch - actions: - - pod_issue_investigator: {} - - deployment_events_enricher: {} - - deployment_events_enricher: - dependent_pod_mode: true - - triggers: - - on_prometheus_alert: - status: "all" - actions: - - default_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubeDeploymentRolloutStuck - actions: - - deployment_events_enricher: {} - - deployment_events_enricher: - dependent_pod_mode: true - - pod_issue_investigator: {} - - triggers: - - on_prometheus_alert: - alert_name: NodeFilesystemSpaceFillingUp - k8s_providers: ["Minikube", "Kind", "RancherDesktop"] - - on_prometheus_alert: - alert_name: NodeFilesystemAlmostOutOfSpace - k8s_providers: ["Minikube", "Kind", "RancherDesktop"] - actions: - - alert_explanation_enricher: - alert_explanation: "This alert is fired when the file system is running out of space." - recommended_resolution: "This is a common issue on local clusters and we recommend increasing the node disk size for your cluster to run optimally." - - triggers: - - on_prometheus_alert: - alert_name: HighErrorCriticalLogs - actions: - - logs_enricher: {} - - pod_enricher: {} - - impacted_services_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: ApplicationAPIFailures - actions: - - logs_enricher: {} - - pod_enricher: {} - - api_failure_enricher: {} - - api_traces_enricher: {} - - neighboring_connected_logs_enricher: - tail_lines: 100 - - triggers: - - on_prometheus_alert: - alert_name: PodMemoryReachingLimit - actions: - - logs_enricher: {} - - pod_enricher: {} - - pod_node_metrics_enricher: - resource_type: Memory - - pod_metric_enricher: - resource_type: Memory - - triggers: - - on_prometheus_alert: - alert_name: KubeVersionMismatch - actions: - - node_semantic_version_mismatch_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubePersistentVolumeFillingUp - actions: - - prometheus_pvc_event_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: KubernetesVolumeOutOfDiskSpace - actions: - - prometheus_pvc_event_enricher: {} - - triggers: - - on_prometheus_alert: - alert_name: NodeMemoryHighUtilization - actions: - - node_allocatable_resources_enricher: {} - - node_running_pods_enricher: {} - - status_enricher: - show_details: true - - triggers: - - on_prometheus_alert: - alert_name: NodeCPUHighUsage - actions: - - node_allocatable_resources_enricher: {} - - node_running_pods_enricher: {} - - status_enricher: - show_details: true - - triggers: - - on_prometheus_alert: - alert_name: TCPConnectionFailure - actions: - - logs_enricher: {} - - pod_enricher: {} - - tcp_connection_failure_enricher: {} # parameters for the nudgebee forwarder deployment kubewatch: image: - repository: registry.nudgebee.com/kubewatch - tag: 2025-08-05T15-21-58_244b8879e108cf4b12313d400cd3716265869344 + repository: ghcr.io/nudgebee/kubewatch + tag: 2.14.1-nb.1 imagePullPolicy: IfNotPresent pprof: true resources: @@ -623,10 +85,9 @@ runnerServiceAccount: # parameters for the nudgebee runner runner: image: - repository: registry.nudgebee.com/nudgebee-agent - tag: 2026-03-07T11-58-24_ac1360dbc5401f549c7bba75d382e1ce22071d41 + repository: ghcr.io/nudgebee/nudgebee-agent + tag: 2026-05-14T11-08-22_541a1e4b57da3b75426c25eff9d3034236e07b0a imagePullPolicy: IfNotPresent - log_level: INFO resources: requests: cpu: 250m @@ -645,41 +106,24 @@ runner: imagePullSecrets: [] extraVolumes: [] extraVolumeMounts: [] - image_registry: registry.nudgebee.com - krr_image_override: krr-public:2025-07-10T07-36-19_9195d324fdcde4e2f4724ba270c4351ed2366a1d relay_address: wss://relay.nudgebee.com/register - profiler_image_override: 2025-10-07T09-20-18_6ede7487ac41f9c167a2e547e70ac7e7a2de7a88 - kubepug_image_override: kubepug:2025-08-13T08-26-24_d16f6f2d1e27c24258c36ab8caf2054b583aa3cb - nova_image_override: nova:2026-03-07T11-56-14_c1432955300a4a231c9d6a364513ec680898f595 clickhouse_enabled: true clickhouse_secret: "" - runbook_sidecar_image_tag: 2026-01-21T12-26-01_65a85cc1e589d506b9d5fa39f684d61c98638c4e - victoria_metrics_enabled: false loki: url: "" - username: "" - password: "" headers: "" es: - enabled: false url: "https://elasticsearch-es-internal-http.monitoring.svc:9200" apiKey: "" - headers: "" signoz: - enabled: false url: "https://signoz.signoz.svc:8080" apiKey: "" - user_email: "" - user_password: "" grafana: - enabled: false url: "" - apiKey: "" username: "" password: "" + extra_headers: "" additional_env_vars: - - name: POPEYE_IMAGE_OVERRIDE - value: "popeye:v0.11.1" - name: CLICKHOUSE_PORT value: "8123" - name: CLICKHOUSE_USER @@ -688,44 +132,9 @@ runner: value: default nudgebee: endpoint: https://collector.nudgebee.com - publish_window: "3600" auth_secret_key: "" serviceAccount: annotations: {} -apiServer: - enabled: true - image: - repository: ~ # inherits from runner.image.repository - tag: ~ # inherits from runner.image.tag - imagePullPolicy: ~ # inherits from runner.imagePullPolicy - log_level: ~ # inherits from runner.log_level - resources: - requests: - cpu: 250m - memory: 1000Mi - limits: - cpu: ~ - memory: ~ - tolerations: [] - annotations: {} - nodeSelector: ~ - affinity: ~ - imagePullSecrets: ~ # inherits from runner.imagePullSecrets - extraVolumes: [] - extraVolumeMounts: [] - additional_env_vars: [] - additional_env_froms: [] - sendAdditionalTelemetry: ~ - krr_image_override: ~ - image_registry: ~ - relay_address: ~ - profiler_image_override: ~ - kubepug_image_override: ~ - nova_image_override: ~ - runbook_sidecar_image_tag: ~ - victoria_metrics_enabled: ~ - clickhouse_enabled: ~ - clickhouse_secret: ~ nodeAgent: enabled: true podmonitor: @@ -733,9 +142,9 @@ nodeAgent: azuremanaged: false podAnnotations: {} image: - repository: registry.nudgebee.com/nudgebee-node-agent + repository: ghcr.io/nudgebee/node-agent pullPolicy: IfNotPresent - tag: 2026-03-07T13-05-46_d38d1d4491462852250825a90161b417b21d5c3a + tag: 0.1.0 resources: requests: cpu: "100m" @@ -954,4 +363,3 @@ clickhouse: description: "Average query duration is above 1 second over last 5 minutes." alertmanager: create_nb_default_rules: true - create_nb_alert_config: true From 3e9d29fef95ea9ef95aff71923389eef597a6b74 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 18 May 2026 13:30:29 +0530 Subject: [PATCH 06/40] chore(chart): remove grafanaRenderer sidecar and kubewatch sync config (#424) * chore(chart): remove grafanaRenderer sidecar and kubewatch sync config - grafanaRenderer was a server-side rendering sidecar used by Robusta to generate Grafana graph snapshots for Findings. Go agent doesn't use it; default was enableContainer: false anyway. - kubewatch.config.sync: unused block (workload snapshot + scheduled sync knobs). Not consumed by the fork's current config schema. * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- charts/nudgebee-agent/templates/runner.yaml | 18 ------------ charts/nudgebee-agent/values.yaml | 32 +-------------------- 2 files changed, 1 insertion(+), 49 deletions(-) diff --git a/charts/nudgebee-agent/templates/runner.yaml b/charts/nudgebee-agent/templates/runner.yaml index ab5f7e0..4c38fd5 100644 --- a/charts/nudgebee-agent/templates/runner.yaml +++ b/charts/nudgebee-agent/templates/runner.yaml @@ -32,24 +32,6 @@ spec: {{- include "nudgebee.runner.imagePullSecrets" . | nindent 6 }} containers: {{- include "nudgebee.runner.container" . | nindent 6 }} - {{- if .Values.grafanaRenderer.enableContainer }} - - name: grafana-renderer - image: {{ .Values.grafanaRenderer.image }} - imagePullPolicy: {{ .Values.grafanaRenderer.imagePullPolicy }} - securityContext: - privileged: false - lifecycle: - preStop: - exec: - command: ["bash", "-c", "kill -SIGINT 1"] - resources: - requests: - cpu: {{ .Values.grafanaRenderer.resources.requests.cpu }} - memory: {{ if .Values.isSmallCluster }}"64Mi"{{ else }}{{ .Values.grafanaRenderer.resources.requests.memory | quote }}{{ end }} - limits: - memory: {{ if .Values.isSmallCluster }}"64Mi"{{ else if .Values.grafanaRenderer.resources.limits.memory }}{{ .Values.grafanaRenderer.resources.limits.memory | quote }}{{ else }}{{ .Values.grafanaRenderer.resources.requests.memory | quote }}{{ end }} - {{ if .Values.grafanaRenderer.resources.limits.cpu }}cpu: {{ .Values.grafanaRenderer.resources.limits.cpu | quote }}{{ end }} - {{- end }} {{- include "nudgebee.runner.volumes" . | nindent 6 }} {{- if .Values.runner.nodeSelector }} nodeSelector: {{ toYaml .Values.runner.nodeSelector | nindent 8 }} diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index d3badec..8190b21 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -48,36 +48,6 @@ kubewatch: coreevent: false # added on kubewatch 2.5 ingress: true # full support on kubewatch 2.4 (earlier versions have ingress bugs) rollout: true - sync: - # Enable/disable scheduled sync - enabled: true - # How often to run the sync - interval: "1h" - # Enable/disable payload compression for sync data - compression: true - # Number of resources to send in a single batch - batchSize: 1000 - # Timeout in seconds for the sync request - timeoutSeconds: 180 - # Configuration for workload snapshot - workloadSnapshot: - # Enable/disable workload snapshot as part of the sync - enabled: true - # Include nodes in the workload snapshot - includeNodes: true - # Include services in the workload snapshot - includeServices: true -# parameters for the renderer service used in nudgebee runner to render grafana graphs -grafanaRenderer: - enableContainer: false - image: us-central1-docker.pkg.dev/genuine-flight-317411/devel/grafana-renderer:7 - imagePullPolicy: IfNotPresent - resources: - requests: - cpu: 100m - memory: 512Mi - limits: - cpu: ~ # parameters for the nudgebee runner service account runnerServiceAccount: # image pull secrets added to the runner service account. Any pod using the service account will get those @@ -86,7 +56,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-05-14T11-08-22_541a1e4b57da3b75426c25eff9d3034236e07b0a + tag: 2026-05-15T05-43-44_2f82bbd62b53f8445de9bb7007de5c2b4b296bd3 imagePullPolicy: IfNotPresent resources: requests: From dc127eb7dc798664f47927163dcf26b63ea57cc6 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 18 May 2026 14:43:20 +0530 Subject: [PATCH 07/40] Merge pull request #425 from nudgebee/fix/mutate-enabled-conditional fix(chart): conditional MUTATE_ENABLED + rename /etc/robusta path --- charts/nudgebee-agent/templates/_helpers.tpl | 6 ++++-- charts/nudgebee-agent/templates/openshift-scc-baseline.yaml | 2 +- .../nudgebee-agent/templates/openshift-scc-privileged.yaml | 2 +- charts/nudgebee-agent/templates/runner.yaml | 3 +-- charts/nudgebee-agent/values.yaml | 2 +- 5 files changed, 8 insertions(+), 7 deletions(-) diff --git a/charts/nudgebee-agent/templates/_helpers.tpl b/charts/nudgebee-agent/templates/_helpers.tpl index 03152c0..a6db6b4 100644 --- a/charts/nudgebee-agent/templates/_helpers.tpl +++ b/charts/nudgebee-agent/templates/_helpers.tpl @@ -87,10 +87,12 @@ Runner container template. Invoked with root context: include "nudgebee.runner.c value: {{ .Release.Namespace }} - name: SCANNER_SERVICE_ACCOUNT value: {{ include "nudgebee-agent.fullname" . }}-runner-service-account + {{- if .Values.rsa }} - name: MUTATE_ENABLED value: "true" - name: RSA_PRIVATE_KEY_PATH - value: /etc/robusta/auth/prv + value: /etc/nudgebee/auth/prv + {{- end }} {{- if or (index (default (dict) (index .Values "opentelemetry-collector")) "enabled") .Values.runner.clickhouse_enabled }} {{- $clickhouseSecret := .Values.runner.clickhouse_secret }} {{- if not $clickhouseSecret }} @@ -129,7 +131,7 @@ Runner container template. Invoked with root context: include "nudgebee.runner.c {{- end }} volumeMounts: - name: auth-config-secret - mountPath: /etc/robusta/auth + mountPath: /etc/nudgebee/auth {{- with .Values.runner.extraVolumeMounts }} {{- toYaml . | nindent 4 }} {{- end }} diff --git a/charts/nudgebee-agent/templates/openshift-scc-baseline.yaml b/charts/nudgebee-agent/templates/openshift-scc-baseline.yaml index 58dec48..73dc2f4 100644 --- a/charts/nudgebee-agent/templates/openshift-scc-baseline.yaml +++ b/charts/nudgebee-agent/templates/openshift-scc-baseline.yaml @@ -6,7 +6,7 @@ metadata: labels: {{- include "nudgebee-agent.labels" . | nindent 4 }} annotations: - kubernetes.io/description: {{ include "nudgebee-agent.fullname" . }}-scc provides the features required to run robusta + kubernetes.io/description: {{ include "nudgebee-agent.fullname" . }}-scc provides the features required to run nudgebee-agent allowHostDirVolumePlugin: false allowHostIPC: false allowHostNetwork: false diff --git a/charts/nudgebee-agent/templates/openshift-scc-privileged.yaml b/charts/nudgebee-agent/templates/openshift-scc-privileged.yaml index 7065de0..995f6bf 100644 --- a/charts/nudgebee-agent/templates/openshift-scc-privileged.yaml +++ b/charts/nudgebee-agent/templates/openshift-scc-privileged.yaml @@ -6,7 +6,7 @@ metadata: labels: {{- include "nudgebee-agent.labels" . | nindent 4 }} annotations: - kubernetes.io/description: {{ include "nudgebee-agent.fullname" . }}-scc provides the features required to run robusta enhanced debuggers for Java, Python, and node host capabilities + kubernetes.io/description: {{ include "nudgebee-agent.fullname" . }}-scc provides the features required to run nudgebee-agent debuggers and node host capabilities allowHostDirVolumePlugin: true allowHostIPC: false allowHostNetwork: false diff --git a/charts/nudgebee-agent/templates/runner.yaml b/charts/nudgebee-agent/templates/runner.yaml index 4c38fd5..e9776cb 100644 --- a/charts/nudgebee-agent/templates/runner.yaml +++ b/charts/nudgebee-agent/templates/runner.yaml @@ -68,8 +68,7 @@ kind: ServiceMonitor metadata: name: {{ include "nudgebee-agent.fullname" . }}-runner-service-monitor labels: - # this label is how the Prometheus installed with Robusta finds ServiceMonitors - # TODO: we probably need to add custom labels here for a Prometheus installed separately + # release label matches kube-prometheus-stack's default ServiceMonitor selector release: {{ .Release.Name }} spec: endpoints: diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 8190b21..3bf6c13 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -56,7 +56,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-05-15T05-43-44_2f82bbd62b53f8445de9bb7007de5c2b4b296bd3 + tag: 2026-05-18T07-34-08_bb616ea340b11a941bac1ad2615df5b2f3284e65 imagePullPolicy: IfNotPresent resources: requests: From a5020c1d103bba9fbd1ae18ea6294ed649b48e29 Mon Sep 17 00:00:00 2001 From: mayankpande88 Date: Mon, 18 May 2026 15:37:34 +0530 Subject: [PATCH 08/40] fix(install): replace eval-based helm command with bash array MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The script built the helm command as a quoted string and ran it via \`eval \$a\`. Two real problems with that pattern: - **Command injection**: any flag value containing shell metacharacters ($, backticks, ;, \$(...)) gets evaluated by eval as part of the command. A malicious -a / -p / -s value runs arbitrary commands. - **Correctness**: even with trusted operators, legitimate values containing spaces, quotes, or commas silently misbehave — values files with spaces in the path, Grafana passwords with shell-special characters, Prometheus URLs with query strings, etc. Refactor each optional flag block into a (possibly empty) bash array, then build the helm command with \`"\${arr[@]}"\` expansion. Bash preserves quoting per-element, empty arrays expand to nothing, and no eval is needed. Addresses Gemini review comment on PR #427 (installation.sh:298). --- installation.sh | 110 ++++++++++++++++++++++++++++++++++++------------ 1 file changed, 82 insertions(+), 28 deletions(-) diff --git a/installation.sh b/installation.sh index b3fa5d1..7248f32 100644 --- a/installation.sh +++ b/installation.sh @@ -232,70 +232,124 @@ echo "Installing nudgebee agent using helm" helm repo add nudgebee-agent https://nudgebee.github.io/k8s-agent/ helm repo update > /dev/null 2>&1 -addition_secret_command="" +# Build the helm command as an array. Each optional flag becomes an +# (empty or populated) sub-array; bash expands `"${arr[@]}"` correctly +# even when empty, preserves spaces/quoting in values, and avoids +# command-injection via eval. +helm_args=( + upgrade --install "$agent_name" nudgebee-agent/nudgebee-agent + --namespace "$namespace" + --create-namespace + --set "runner.nudgebee.auth_secret_key=$auth_key" +) + +if [ -n "$prometheus_url" ]; then + helm_args+=( + --set "globalConfig.prometheus_url=$prometheus_url" + --set "opencost.opencost.prometheus.external.url=$prometheus_url" + ) +fi + +addition_secret_args=() if [ -n "$additional_secret" ]; then - addition_secret_command=" --set-string runner.additional_env_froms[0].secretRef.name=$additional_secret --set-string runner.additional_env_froms[0].secretRef.optional=true" + addition_secret_args=( + --set-string "runner.additional_env_froms[0].secretRef.name=$additional_secret" + --set-string "runner.additional_env_froms[0].secretRef.optional=true" + ) fi -openshift_enable_command="" +openshift_enable_args=() if [ -n "$openshift_enable" ]; then - openshift_enable_command=" --set-string openshift.enable=true --set-string openshift.createScc=true" + openshift_enable_args=( + --set-string "openshift.enable=true" + --set-string "openshift.createScc=true" + ) fi -disable_node_agent_command="" + +disable_node_agent_args=() if [ -n "$disable_node_agent" ]; then - disable_node_agent_command=" --set nodeAgent.enabled=false" + disable_node_agent_args=(--set "nodeAgent.enabled=false") fi -values_command="" +values_args=() if [ -n "$values" ]; then - values_command=" -f $values" + values_args=(-f "$values") +fi + +# Note: grafana_command is built earlier in the script as a quoted string; +# split it into an array safely. It only contains --set key=value pairs +# with no shell metacharacters in the values (admin/admin defaults). +grafana_args=() +if [ -n "$grafana_command" ]; then + # shellcheck disable=SC2206 # intentional word-split — known-safe content + grafana_args=($grafana_command) fi -alert_manager_url_command="" +alert_manager_url_args=() if [ -n "$alert_manager_url" ]; then - alert_manager_url_command=" --set globalConfig.alertmanager_url=$alert_manager_url" + alert_manager_url_args=(--set "globalConfig.alertmanager_url=$alert_manager_url") fi -prometheus_org_id_command="" +prometheus_org_id_args=() if [ -n "$prometheus_org_id" ]; then - prometheus_org_id_command=" --set globalConfig.prometheus_headers='X-Scope-OrgID: $prometheus_org_id' --set globalConfig.alertmanager_headers='X-Scope-OrgID: $prometheus_org_id' --set opencost.opencost.extraEnv.PROMETHEUS_HEADER_X_SCOPE_ORGID=$prometheus_org_id" + prometheus_org_id_args=( + --set "globalConfig.prometheus_headers=X-Scope-OrgID: $prometheus_org_id" + --set "globalConfig.alertmanager_headers=X-Scope-OrgID: $prometheus_org_id" + --set "opencost.opencost.extraEnv.PROMETHEUS_HEADER_X_SCOPE_ORGID=$prometheus_org_id" + ) fi -relay_address_command="" +relay_address_args=() if [ -n "$relay_address" ]; then - relay_address_command=" --set runner.relay_address=$relay_address" + relay_address_args=(--set "runner.relay_address=$relay_address") fi -collector_endpoint_command="" +collector_endpoint_args=() if [ -n "$collector_endpoint" ]; then - collector_endpoint_command=" --set runner.nudgebee.endpoint=$collector_endpoint" + collector_endpoint_args=(--set "runner.nudgebee.endpoint=$collector_endpoint") fi -image_registry_command="" +image_registry_args=() if [ -n "$image_registry" ]; then - image_registry_command=" --set runner.image_registry=$image_registry" + image_registry_args=(--set "runner.image_registry=$image_registry") fi -disable_opencost_command="" +disable_opencost_args=() if [ "$disable_opencost" == "true" ]; then - disable_opencost_command=" --set opencost.enabled=false" + disable_opencost_args=(--set "opencost.enabled=false") fi -disable_otel_command="" +disable_otel_args=() if [ "$disable_otel" == "true" ]; then - disable_otel_command=" --set opentelemetry-collector.enabled=false --set clickhouse.enabled=false" + disable_otel_args=( + --set "opentelemetry-collector.enabled=false" + --set "clickhouse.enabled=false" + ) fi -disable_prometheus_stack_command="" +disable_prometheus_stack_args=() if [ "$disable_prometheus_stack" == "true" ]; then - disable_prometheus_stack_command=" --set enablePrometheusStack=false" + disable_prometheus_stack_args=(--set "enablePrometheusStack=false") fi -# Use helm upgrade --install to either install or upgrade the Helm chart -a="helm upgrade --install $agent_name nudgebee-agent/nudgebee-agent --namespace $namespace --create-namespace --set runner.nudgebee.auth_secret_key=\"$auth_key\" --set globalConfig.prometheus_url=\"$prometheus_url\" --set opencost.opencost.prometheus.external.url=\"$prometheus_url\" $disable_node_agent_command $openshift_enable_command $addition_secret_command $values_command $grafana_command $alert_manager_url_command $prometheus_org_id_command $relay_address_command $collector_endpoint_command $image_registry_command $disable_opencost_command $disable_otel_command $disable_prometheus_stack_command" +helm_args+=( + "${disable_node_agent_args[@]}" + "${openshift_enable_args[@]}" + "${addition_secret_args[@]}" + "${values_args[@]}" + "${grafana_args[@]}" + "${alert_manager_url_args[@]}" + "${prometheus_org_id_args[@]}" + "${relay_address_args[@]}" + "${collector_endpoint_args[@]}" + "${image_registry_args[@]}" + "${disable_opencost_args[@]}" + "${disable_otel_args[@]}" + "${disable_prometheus_stack_args[@]}" +) -echo "Running command: $a" -eval $a +echo "Running command: helm ${helm_args[*]}" +helm "${helm_args[@]}" # Discover Loki as log server if not found, then provide link to nudgebee doc to configure log provider loki_selectors=( From 6a69e8ec8b24f1cfe4e90c320921e187f5d94e34 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 18 May 2026 15:38:46 +0530 Subject: [PATCH 09/40] chore(chart): drop redundant clickhouse volume-init initContainer (#426) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The bitnami clickhouse pod already has fsGroup: 1001, which K8s applies via the CSI driver before the main container starts. The chown init container (running bitnami-os-shell as root) was doing the same work manually — leftover defense for storage backends that don't honor fsGroup. Modern CSI drivers (EBS, GKE PD, Azure Disk, etc.) all do. Also drops the empty-dir extraVolume that only existed to give the init container a /tmp scratch space, and removes one of the remaining registry.nudgebee.com/* image dependencies (bitnami-os-shell). --- .../nudgebee-agent/templates/forwarder.yaml | 2 +- charts/nudgebee-agent/values.yaml | 24 ------------------- 2 files changed, 1 insertion(+), 25 deletions(-) diff --git a/charts/nudgebee-agent/templates/forwarder.yaml b/charts/nudgebee-agent/templates/forwarder.yaml index 9b4621c..94ecac2 100644 --- a/charts/nudgebee-agent/templates/forwarder.yaml +++ b/charts/nudgebee-agent/templates/forwarder.yaml @@ -32,7 +32,7 @@ spec: {{- end }} containers: - name: kubewatch - # this is a custom version of kubewatch built from https://github.com/aantn/kubewatch + # nudgebee fork of kubewatch — github.com/nudgebee/kubewatch image: {{ .Values.kubewatch.image.repository }}:{{ .Values.kubewatch.image.tag | default "latest" }} imagePullPolicy: {{ .Values.kubewatch.imagePullPolicy }} env: diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 3bf6c13..f15179c 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -282,30 +282,6 @@ clickhouse: memory: 2000Mi limits: memory: 2000Mi - initContainers: - - name: volume-init - image: registry.nudgebee.com/bitnami-os-shell:12-debian-12-r46 - command: - - /bin/sh - - -ec - - | - mkdir -p /bitnami/clickhouse/data - chmod 700 /bitnami/clickhouse/data - chown 1001:1001 /bitnami/clickhouse - find /bitnami/clickhouse -mindepth 1 -maxdepth 1 -not -name ".snapshot" -not -name "lost+found" | \ - xargs -r chown -R 1001:1001 - echo "ClickHouse data directory initialized" - securityContext: - runAsUser: 0 - volumeMounts: - - name: data - mountPath: /bitnami/clickhouse - - name: empty-dir - mountPath: /tmp - subPath: tmp-dir - extraVolumes: - - name: empty-dir - emptyDir: {} metrics: enabled: true serviceMonitor: From 2c6292ed80db9cec9f161cd834f047152c64f5b9 Mon Sep 17 00:00:00 2001 From: mayankpande88 Date: Mon, 18 May 2026 15:41:48 +0530 Subject: [PATCH 10/40] docs(readme): add install snippets The README only linked to external docs. Add a helm command + reference to installation.sh so users can install from the README directly. Uses `helm upgrade --install` (idempotent) and quotes the auth-key placeholder so values with shell-special characters work. --- README.md | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) diff --git a/README.md b/README.md index a83479c..a5b58f4 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,23 @@ # NudgeBee Kubernetes agent -Module to connect kubernetes to NudgeBee. -## Getting started -For more details please visit [here](https://app.nudgebee.com/help/docs/installation/agent/installation/) +Helm chart for the NudgeBee Kubernetes agent — connects your cluster to the NudgeBee backend. + +## Install + +```bash +helm repo add nudgebee-agent https://nudgebee.github.io/k8s-agent/ +helm repo update +helm upgrade --install nudgebee-agent nudgebee-agent/nudgebee-agent \ + --namespace nudgebee-agent --create-namespace \ + --set runner.nudgebee.auth_secret_key="" +``` + +Or use `installation.sh` for an opinionated install with Prometheus auto-discovery: + +```bash +curl -sSL https://raw.githubusercontent.com/nudgebee/k8s-agent/main/installation.sh | bash -s -- -a "" +``` + +## Documentation + +See the [installation guide](https://app.nudgebee.com/help/docs/installation/agent/installation/) for full setup, configuration, and troubleshooting. From 328cdcd2443beb3ba5788b9774e14294c09d8279 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 19 May 2026 18:46:37 +0530 Subject: [PATCH 11/40] fix(chart): default runner.es.url and runner.signoz.url to empty (#431) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * fix(chart): default runner.es.url and runner.signoz.url to empty Chart defaulted runner.es.url to a hardcoded "https://elasticsearch-es-internal-http.monitoring.svc:9200" and runner.signoz.url to "https://signoz.signoz.svc:8080". The runner-secret conditionally emits ELASTICSEARCH_URL / SIGNOZ_URL only when those values are set — but since they always were set (to a guessed default), every install ended up with both env vars present. The Go agent then enabled ES/SigNoz handling and tried to connect to non-existent services on most clusters. Default both to "" so they're opt-in. Customers who actually have ES or SigNoz set the URL explicitly; everyone else gets clean defaults. * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- charts/nudgebee-agent/values.yaml | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index a04d7a3..013470f 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -56,7 +56,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-05-18T07-34-08_bb616ea340b11a941bac1ad2615df5b2f3284e65 + tag: 2026-05-18T18-17-59_787ea0cc865e96db72659ddc586058b8d737cded imagePullPolicy: IfNotPresent resources: requests: @@ -83,10 +83,12 @@ runner: url: "" headers: "" es: - url: "https://elasticsearch-es-internal-http.monitoring.svc:9200" + # Set to enable Elasticsearch actions. Surfaces as ELASTICSEARCH_URL. + url: "" apiKey: "" signoz: - url: "https://signoz.signoz.svc:8080" + # Set to enable SigNoz actions. Surfaces as SIGNOZ_URL. + url: "" apiKey: "" grafana: url: "" From 2923e7dac63299ff90c674238fe12b0efdf1381a Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 19 May 2026 19:53:55 +0530 Subject: [PATCH 12/40] fix(chart): wire globalConfig.prometheus_url to PROMETHEUS_URL env (#430) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * fix(chart): wire globalConfig.prometheus_url to PROMETHEUS_URL env The Go agent reads PROMETHEUS_URL from the environment (pkg/config/config.go:127). The cutover removed the chart's globalConfig.prometheus_url plumbing — customers who set globalConfig.prometheus_url (installation.sh does, dev-gke values does) were having it silently dropped. Restore globalConfig.prometheus_url + globalConfig.prometheus_headers as documented keys, and surface them as PROMETHEUS_URL / PROMETHEUS_HEADERS in the runner-secret. Conditional render — keys only appear when set. * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- charts/nudgebee-agent/templates/runner.yaml | 6 ++++++ charts/nudgebee-agent/values.yaml | 5 +++++ 2 files changed, 11 insertions(+) diff --git a/charts/nudgebee-agent/templates/runner.yaml b/charts/nudgebee-agent/templates/runner.yaml index e9776cb..f7da6e7 100644 --- a/charts/nudgebee-agent/templates/runner.yaml +++ b/charts/nudgebee-agent/templates/runner.yaml @@ -90,6 +90,12 @@ type: Opaque stringData: NUDGEBEE_ENDPOINT: {{ .Values.runner.nudgebee.endpoint }} NUDGEBEE_AUTH_SECRET_KEY: {{ .Values.runner.nudgebee.auth_secret_key }} + {{- if .Values.globalConfig.prometheus_url }} + PROMETHEUS_URL: {{ .Values.globalConfig.prometheus_url | quote }} + {{- end }} + {{- if .Values.globalConfig.prometheus_headers }} + PROMETHEUS_HEADERS: {{ .Values.globalConfig.prometheus_headers | quote }} + {{- end }} {{- if .Values.runner.grafana.password }} GRAFANA_PASSWORD: {{ .Values.runner.grafana.password | quote }} {{- end }} diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 013470f..f8f19fa 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -5,6 +5,11 @@ enablePrometheusStack: true automountServiceAccountToken: true globalConfig: custom_annotations: {} + # Prometheus URL the runner queries (e.g. "http://prometheus-server.prometheus.svc:80"). + # Surfaces as PROMETHEUS_URL on the runner pod. Leave empty to let the agent auto-discover. + prometheus_url: "" + # Optional headers (comma-separated "Header: value" pairs). Surfaces as PROMETHEUS_HEADERS. + prometheus_headers: "" enableServiceMonitors: true # parameters for the nudgebee forwarder deployment kubewatch: From 809b0e9e332a4e13a07c244eceb9ef26e6affc5e Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Sat, 23 May 2026 12:13:52 +0530 Subject: [PATCH 13/40] chore: prepare repo for open-source release (#432) * chore: prepare repo for open-source release - add Apache-2.0 LICENSE, CONTRIBUTING, SECURITY, CODE_OF_CONDUCT - add CODEOWNERS, PR template, issue templates, dependabot config - expand README with components table, prerequisites, data disclosure, badges - Chart.yaml: add home/sources/maintainers/keywords/artifacthub annotations - values.yaml: repoint registry.nudgebee.com images to public ghcr.io/nudgebee - values.yaml: drop hardcoded ClickHouse password; subchart auto-generates * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- .github/CODEOWNERS | 9 + .github/ISSUE_TEMPLATE/bug_report.yml | 79 ++++++++ .github/ISSUE_TEMPLATE/config.yml | 11 ++ .github/ISSUE_TEMPLATE/feature_request.yml | 35 ++++ .github/PULL_REQUEST_TEMPLATE.md | 31 ++++ .github/dependabot.yml | 18 ++ CODE_OF_CONDUCT.md | 13 ++ CONTRIBUTING.md | 67 +++++++ LICENSE | 201 +++++++++++++++++++++ README.md | 103 ++++++++++- SECURITY.md | 41 +++++ charts/nudgebee-agent/Chart.yaml | 25 ++- charts/nudgebee-agent/values.yaml | 18 +- 13 files changed, 637 insertions(+), 14 deletions(-) create mode 100644 .github/CODEOWNERS create mode 100644 .github/ISSUE_TEMPLATE/bug_report.yml create mode 100644 .github/ISSUE_TEMPLATE/config.yml create mode 100644 .github/ISSUE_TEMPLATE/feature_request.yml create mode 100644 .github/PULL_REQUEST_TEMPLATE.md create mode 100644 .github/dependabot.yml create mode 100644 CODE_OF_CONDUCT.md create mode 100644 CONTRIBUTING.md create mode 100644 LICENSE create mode 100644 SECURITY.md diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS new file mode 100644 index 0000000..4246061 --- /dev/null +++ b/.github/CODEOWNERS @@ -0,0 +1,9 @@ +# Default reviewers for all changes in this repo. +# Adjust the team handle below to match your GitHub org/team. + +* @nudgebee/maintainers + +# Chart-specific +/charts/ @nudgebee/maintainers +/.github/workflows/ @nudgebee/maintainers +/installation.sh @nudgebee/maintainers diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml new file mode 100644 index 0000000..a3a253d --- /dev/null +++ b/.github/ISSUE_TEMPLATE/bug_report.yml @@ -0,0 +1,79 @@ +name: Bug report +description: Report a problem with the nudgebee-agent Helm chart +labels: ["bug", "triage"] +body: + - type: markdown + attributes: + value: | + Thanks for taking the time to report a bug. Please fill in the details below so we can reproduce it. + + - type: textarea + id: what-happened + attributes: + label: What happened? + description: Describe the bug clearly. Include error messages and unexpected behavior. + validations: + required: true + + - type: textarea + id: expected + attributes: + label: What did you expect to happen? + validations: + required: true + + - type: textarea + id: repro + attributes: + label: Steps to reproduce + description: Minimum steps required to reproduce, including `helm install` command and any non-default values. + placeholder: | + 1. helm install ... + 2. kubectl get ... + 3. ... + validations: + required: true + + - type: input + id: chart-version + attributes: + label: Chart version + description: Output of `helm list -n ` or the version you installed. + placeholder: "e.g. 0.1.1" + validations: + required: true + + - type: input + id: k8s-version + attributes: + label: Kubernetes version + description: Output of `kubectl version --short`. + placeholder: "e.g. v1.29.3" + validations: + required: true + + - type: input + id: platform + attributes: + label: Cluster platform + description: EKS, GKE, AKS, kind, OpenShift, etc. + validations: + required: false + + - type: textarea + id: values + attributes: + label: Relevant values.yaml overrides + description: Paste any non-default values you set (redact secrets and auth keys). + render: yaml + validations: + required: false + + - type: textarea + id: logs + attributes: + label: Logs + description: Output from `kubectl logs` for the relevant pods. Redact sensitive data. + render: shell + validations: + required: false diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml new file mode 100644 index 0000000..ecbd424 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/config.yml @@ -0,0 +1,11 @@ +blank_issues_enabled: false +contact_links: + - name: Security vulnerability + url: https://github.com/nudgebee/k8s-agent/security/advisories/new + about: Report security issues privately. Do not open a public issue. + - name: NudgeBee documentation + url: https://app.nudgebee.com/help/docs/installation/agent/installation/ + about: Installation, configuration, and troubleshooting guides. + - name: Community / questions + url: https://github.com/nudgebee/k8s-agent/discussions + about: Ask questions or discuss usage. Please search first. diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml new file mode 100644 index 0000000..411f358 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/feature_request.yml @@ -0,0 +1,35 @@ +name: Feature request +description: Suggest a new chart capability or configuration option +labels: ["enhancement", "triage"] +body: + - type: textarea + id: problem + attributes: + label: What problem are you trying to solve? + description: Describe the use case. What can't you do today with the chart? + validations: + required: true + + - type: textarea + id: proposal + attributes: + label: Proposed solution + description: How would you like the chart to support this? New values, new templates, behavior change? + validations: + required: true + + - type: textarea + id: alternatives + attributes: + label: Alternatives considered + description: Other approaches you considered, including workarounds you're using today. + validations: + required: false + + - type: textarea + id: context + attributes: + label: Additional context + description: Links, screenshots, related issues, etc. + validations: + required: false diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md new file mode 100644 index 0000000..a1781a6 --- /dev/null +++ b/.github/PULL_REQUEST_TEMPLATE.md @@ -0,0 +1,31 @@ + + +## Summary + + + +## Type of change + +- [ ] Bug fix (non-breaking) +- [ ] New feature (non-breaking) +- [ ] Breaking change (chart upgrade requires user action) +- [ ] Documentation only +- [ ] CI / tooling + +## Chart version + +- [ ] I bumped `version` in `charts/nudgebee-agent/Chart.yaml` (required for user-visible changes) +- [ ] No version bump needed (docs/CI only) + +## Test plan + + + +- [ ] `helm lint charts/nudgebee-agent` passes +- [ ] `ct lint --config .github/configs/ct.yaml` passes +- [ ] `helm template` output reviewed +- [ ] Installed on a real/kind cluster and verified the change + +## Related issues + + diff --git a/.github/dependabot.yml b/.github/dependabot.yml new file mode 100644 index 0000000..95ef7b5 --- /dev/null +++ b/.github/dependabot.yml @@ -0,0 +1,18 @@ +version: 2 +updates: + - package-ecosystem: github-actions + directory: / + schedule: + interval: weekly + open-pull-requests-limit: 5 + labels: + - dependencies + - ci + + - package-ecosystem: docker + directory: / + schedule: + interval: weekly + labels: + - dependencies + - docker diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md new file mode 100644 index 0000000..7e89cab --- /dev/null +++ b/CODE_OF_CONDUCT.md @@ -0,0 +1,13 @@ +# Code of Conduct + +This project adopts the [Contributor Covenant v2.1](https://www.contributor-covenant.org/version/2/1/code_of_conduct/) as its Code of Conduct. + +By participating in this project — opening issues, submitting pull requests, or interacting in discussions — you agree to abide by its terms. + +## Reporting + +Concerns about conduct in this community may be reported to `conduct@nudgebee.com`. All reports are reviewed and investigated promptly and fairly. Reporters' identities are kept confidential. + +## Enforcement + +Maintainers are responsible for clarifying and enforcing the standards in the Contributor Covenant, and may take any action they deem appropriate, up to and including removing contributions and banning contributors from the project. diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 0000000..d840b02 --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,67 @@ +# Contributing to nudgebee-agent + +Thanks for your interest in contributing. This repo hosts the Helm chart for the NudgeBee Kubernetes agent. + +## Ways to contribute + +- Report bugs via [GitHub Issues](https://github.com/nudgebee/k8s-agent/issues). +- Propose features or enhancements via a feature-request issue before opening a large PR. +- Improve documentation (README, chart values, install script). +- Submit chart fixes, additional configuration knobs, or new templates. + +For vulnerability reports, **do not open a public issue** — see [SECURITY.md](SECURITY.md). + +## Development setup + +Prerequisites: + +- [Helm](https://helm.sh/docs/intro/install/) 3.12+ +- [chart-testing](https://github.com/helm/chart-testing) (`ct`) for lint and install tests +- [yamllint](https://github.com/adrienverge/yamllint) +- A Kubernetes cluster for install tests ([kind](https://kind.sigs.k8s.io/) or [minikube](https://minikube.sigs.k8s.io/) works) + +Clone and update subchart dependencies: + +```bash +git clone https://github.com/nudgebee/k8s-agent.git +cd k8s-agent +helm dependency update charts/nudgebee-agent +``` + +## Making changes + +1. Branch off `main`: `git checkout -b feat/short-description`. +2. Edit chart templates / values / docs. +3. Bump `version` in `charts/nudgebee-agent/Chart.yaml` if the change is user-visible. +4. Run lint locally before pushing: + + ```bash + helm lint charts/nudgebee-agent + ct lint --config .github/configs/ct.yaml + ``` + +5. Render templates to sanity-check output: + + ```bash + helm template test charts/nudgebee-agent --debug > /tmp/rendered.yaml + ``` + +6. Commit using [Conventional Commits](https://www.conventionalcommits.org/) (e.g. `fix(chart): ...`, `feat(chart): ...`, `docs: ...`). +7. Open a PR against `main`. Fill out the PR template. + +## CI + +PRs run: + +- `helm-dev-lint.yml` — `helm lint` + `ct lint` +- `helm-prod-test.yml` — install/uninstall test against an ephemeral cluster + +Both must pass before merge. + +## Releases + +Releases are cut from `main` by the maintainers using `release.yml` (publishes a packaged chart to the GitHub Pages Helm repo at `https://nudgebee.github.io/k8s-agent/`). + +## Code of Conduct + +By participating you agree to abide by the [Code of Conduct](CODE_OF_CONDUCT.md). diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..883cd8d --- /dev/null +++ b/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or support. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2026 NudgeBee, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/README.md b/README.md index a5b58f4..d53f871 100644 --- a/README.md +++ b/README.md @@ -1,23 +1,114 @@ -# NudgeBee Kubernetes agent +# NudgeBee Kubernetes Agent -Helm chart for the NudgeBee Kubernetes agent — connects your cluster to the NudgeBee backend. +[![License: Apache 2.0](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](LICENSE) +[![Helm Lint](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-dev-lint.yml/badge.svg)](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-dev-lint.yml) +[![Helm Test](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-prod-test.yml/badge.svg)](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-prod-test.yml) +[![Release](https://img.shields.io/github/v/release/nudgebee/k8s-agent)](https://github.com/nudgebee/k8s-agent/releases) + +Helm chart for the NudgeBee Kubernetes agent. The agent runs in your cluster, collects Kubernetes state, events, metrics, logs, and traces, and forwards them to the NudgeBee backend for observability, cost visibility, and incident automation. + +## What it deploys + +| Component | Purpose | +| --- | --- | +| `runner` | Connects to the NudgeBee backend over WebSocket; executes diagnostic and remediation actions in-cluster | +| `kubewatch` (forwarder) | Streams Kubernetes resource changes and events to the runner | +| `node-agent` (DaemonSet) | Per-node logs, profiles, and traces collector (eBPF-based) | +| `opencost` (subchart) | Kubernetes cost allocation metrics | +| `opentelemetry-collector` (subchart) | Receives OTLP signals from `node-agent` and exports to ClickHouse | +| `clickhouse` (subchart) | Local store for traces / logs / metrics (7-day TTL by default) | +| Prometheus rules / ServiceMonitors | Default alerting + scrape config for `kube-prometheus-stack` users | + +The runner connects out to `wss://relay.nudgebee.com/register` and `https://collector.nudgebee.com`. No inbound connectivity is required. + +## Prerequisites + +- Kubernetes 1.24+ +- Helm 3.12+ +- (Optional but recommended) [`kube-prometheus-stack`](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack) — the chart ships `ServiceMonitor` and `PrometheusRule` resources by default +- A NudgeBee account and auth key — sign up at ## Install ```bash helm repo add nudgebee-agent https://nudgebee.github.io/k8s-agent/ helm repo update + helm upgrade --install nudgebee-agent nudgebee-agent/nudgebee-agent \ --namespace nudgebee-agent --create-namespace \ --set runner.nudgebee.auth_secret_key="" ``` -Or use `installation.sh` for an opinionated install with Prometheus auto-discovery: +Or use the opinionated installer (auto-installs `kube-prometheus-stack` and wires up Prometheus discovery): + +```bash +curl -sSL https://raw.githubusercontent.com/nudgebee/k8s-agent/main/installation.sh \ + | bash -s -- -a "" +``` + +## Configuration + +All configurable values live in [`charts/nudgebee-agent/values.yaml`](charts/nudgebee-agent/values.yaml). Common overrides: + +```yaml +runner: + # Required + nudgebee: + auth_secret_key: "" + + # Optional integrations — set the URL to enable + loki: + url: "" + es: + url: "" + apiKey: "" + signoz: + url: "" + apiKey: "" + grafana: + url: "" + username: "" + password: "" + + # Grant write permissions (drain nodes, scale workloads, manage services etc.) + # Off by default — only enable if you want NudgeBee to perform remediations. + enableWritePermissions: false + +# Subcharts can be disabled if not needed +opencost: + enabled: true +opentelemetry-collector: + enabled: true +clickhouse: + enabled: true +``` + +Full configuration reference: [installation guide](https://app.nudgebee.com/help/docs/installation/agent/installation/). + +## Uninstall ```bash -curl -sSL https://raw.githubusercontent.com/nudgebee/k8s-agent/main/installation.sh | bash -s -- -a "" +helm uninstall nudgebee-agent --namespace nudgebee-agent +kubectl delete namespace nudgebee-agent ``` -## Documentation +Note: ClickHouse PVCs are not deleted automatically — remove them manually if you no longer need the data. + +## Data sent to NudgeBee + +By default, the agent forwards: + +- Kubernetes object state (deployments, pods, services, etc.) and events +- Cluster and node metrics (via Prometheus scrape) +- OpenCost allocation data +- Logs, traces, and profiles from `node-agent` (configurable; sensitive HTTP headers are redacted via the `SENSITIVE_HEADERS` env var) + +Secrets are explicitly **not** watched by the kubewatch forwarder (`kubewatch.config.resource.secret: false`). + +## Contributing + +See [CONTRIBUTING.md](CONTRIBUTING.md). For security issues, see [SECURITY.md](SECURITY.md). + +## License -See the [installation guide](https://app.nudgebee.com/help/docs/installation/agent/installation/) for full setup, configuration, and troubleshooting. +[Apache License 2.0](LICENSE). diff --git a/SECURITY.md b/SECURITY.md new file mode 100644 index 0000000..56ea579 --- /dev/null +++ b/SECURITY.md @@ -0,0 +1,41 @@ +# Security Policy + +## Supported versions + +We support the latest minor release of the `nudgebee-agent` Helm chart. Older releases receive fixes only at the maintainers' discretion. + +| Version | Supported | +| ------- | --------- | +| Latest `0.x` | Yes | +| Older `0.x` | Best-effort | + +## Reporting a vulnerability + +Please **do not** open a public GitHub issue for security problems. + +Email `security@nudgebee.com` with: + +- A description of the issue and its impact. +- Steps to reproduce (chart values, Kubernetes version, manifests if relevant). +- Any known mitigations. + +You can also use [GitHub's private vulnerability reporting](https://github.com/nudgebee/k8s-agent/security/advisories/new) if you prefer. + +We aim to: + +- Acknowledge your report within 3 business days. +- Provide an initial assessment within 7 business days. +- Disclose and release a fix coordinated with the reporter. + +## Scope + +In scope: + +- The Helm chart in `charts/nudgebee-agent/` (templates, values, defaults). +- The `installation.sh` bootstrap script. +- Default RBAC and service-account configuration shipped by the chart. + +Out of scope (report upstream): + +- Vulnerabilities in third-party subcharts (`opencost`, `clickhouse`, `opentelemetry-collector`) — report to those projects. +- Issues in the container images themselves (`nudgebee-agent`, `node-agent`, `kubewatch`) — these live in separate repos. diff --git a/charts/nudgebee-agent/Chart.yaml b/charts/nudgebee-agent/Chart.yaml index 3ce1449..486f940 100644 --- a/charts/nudgebee-agent/Chart.yaml +++ b/charts/nudgebee-agent/Chart.yaml @@ -1,8 +1,31 @@ apiVersion: v2 name: nudgebee-agent -description: Nudgebee Helm chart for Kubernetes +description: NudgeBee Kubernetes agent — connects your cluster to the NudgeBee backend for observability, cost, and incident automation. type: application icon: https://nudgebee-documents.s3.amazonaws.com/images/Nudgebee-logo.png +home: https://github.com/nudgebee/k8s-agent +sources: + - https://github.com/nudgebee/k8s-agent +maintainers: + - name: NudgeBee + email: support@nudgebee.com + url: https://nudgebee.com +keywords: + - kubernetes + - observability + - opentelemetry + - opencost + - monitoring + - clickhouse + - kubewatch + - sre +annotations: + artifacthub.io/license: Apache-2.0 + artifacthub.io/links: | + - name: Documentation + url: https://app.nudgebee.com/help/docs/installation/agent/installation/ + - name: Source + url: https://github.com/nudgebee/k8s-agent # these are set to the right value by .github/workflows/release.yaml # we use 0.0.1 as a placeholder for the version` because Helm wont allow `0.0.0` and we want to be able to run # `helm install` on development checkouts without updating this file. the version doesn't matter in that case anyway diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index f8f19fa..c04265a 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-05-18T18-17-59_787ea0cc865e96db72659ddc586058b8d737cded + tag: 2026-05-21T11-58-47_dea9a9abd8c9aa877c405ffa0e1c86e9d3983906 imagePullPolicy: IfNotPresent resources: requests: @@ -150,8 +150,8 @@ opencost: opencost: exporter: image: - registry: registry.nudgebee.com - repository: opencost + registry: ghcr.io + repository: nudgebee/opencost tag: 1.114.0 prometheus: external: @@ -181,7 +181,7 @@ openshift: opentelemetry-collector: enabled: true image: - repository: registry.nudgebee.com/opentelemetry-collector-contrib + repository: ghcr.io/nudgebee/opentelemetry-collector-contrib tag: 0.75.0 # Inherit name overrides from parent chart nameOverride: "" @@ -272,8 +272,8 @@ opentelemetry-collector: clickhouse: enabled: true image: - registry: registry.nudgebee.com - repository: clickhouse + registry: ghcr.io + repository: nudgebee/clickhouse tag: 24.12.4-debian-12-r0-nb-2 nameOverride: "" fullnameOverride: "" @@ -285,7 +285,11 @@ clickhouse: enabled: false auth: username: default - password: "Nudgebee@123" + # Leave empty to let the Bitnami subchart auto-generate a random password + # on first install (persisted in the `-clickhouse` Secret under + # key `admin-password`). To pin a value, set it here or pass via + # `--set clickhouse.auth.password=...`. + password: "" extraOverrides: "\n \n \n \n \n \n \n \n \n \n\n" resources: requests: From 584dbf3e0fa8ff16b01521f4765cdc4fa7b95980 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 26 May 2026 17:53:17 +0530 Subject: [PATCH 14/40] feat(runner): add runner component source and CI (#433) * feat(runner): add runner component source and CI Add the Go source for the runner under runner/, alongside the Helm chart that deploys it. The runner is the in-cluster agent that connects to the NudgeBee backend over WebSocket and executes diagnostic and remediation actions. Adds path-scoped CI (runner/**): a multi-arch image build/push and a lint + test workflow (gofmt, go vet, golangci-lint, race tests). The runner image name and Go module path are unchanged, so the chart's image-tag tooling needs no changes. * fix(runner): address automated review findings - events lister: sort by LastSeen desc before capping (previously returned an arbitrary subset, not the most recent) - snake: iterate a rune slice once (fixes byte/rune index mismatch on multi-byte input and removes per-iteration []rune realloc) - kube exec: guard nil ProcessState (panic when the binary fails to start) - /api/actions: cap request body at 1 MiB via http.MaxBytesReader - discovery: Forget keys on deletion/skip/success paths to bound the rate limiter's backoff map --- .github/workflows/runner-image.yaml | 52 + .github/workflows/runner-lint-test.yaml | 71 ++ README.md | 2 +- runner/.editorconfig | 18 + runner/.env.example | 54 + runner/.gitignore | 12 + runner/.golangci.yml | 64 + runner/Dockerfile | 43 + runner/Makefile | 78 ++ runner/README.md | 142 +++ runner/cmd/agent/k8s_events_lister.go | 121 ++ runner/cmd/agent/main.go | 1081 +++++++++++++++++ runner/docs/actions.md | 242 ++++ runner/docs/architecture.md | 195 +++ runner/docs/configuration.md | 131 ++ runner/docs/development.md | 136 +++ runner/go.mod | 109 ++ runner/go.sum | 279 +++++ runner/internal/k8sclient/k8sclient.go | 58 + runner/internal/k8sclient/k8sclient_test.go | 85 ++ runner/pkg/alerts/auth.go | 10 + runner/pkg/alerts/finding.go | 515 ++++++++ runner/pkg/alerts/finding_test.go | 224 ++++ runner/pkg/alerts/server.go | 283 +++++ runner/pkg/alerts/server_test.go | 420 +++++++ runner/pkg/auth/auth.go | 247 ++++ runner/pkg/auth/auth_test.go | 258 ++++ runner/pkg/auth/loadkey_test.go | 79 ++ runner/pkg/canonjson/canonjson.go | 209 ++++ runner/pkg/canonjson/canonjson_test.go | 170 +++ runner/pkg/clickhouse/client.go | 218 ++++ runner/pkg/clickhouse/client_test.go | 111 ++ runner/pkg/config/config.go | 277 +++++ runner/pkg/config/config_test.go | 184 +++ runner/pkg/control/refresh.go | 140 +++ runner/pkg/control/refresh_test.go | 183 +++ runner/pkg/discovery/alertrules.go | 195 +++ runner/pkg/discovery/alertrules_test.go | 211 ++++ runner/pkg/discovery/auth.go | 12 + runner/pkg/discovery/converters.go | 660 ++++++++++ runner/pkg/discovery/converters_test.go | 422 +++++++ runner/pkg/discovery/helm.go | 125 ++ runner/pkg/discovery/helm_test.go | 120 ++ runner/pkg/discovery/service.go | 432 +++++++ .../service_envtest_integration_test.go | 192 +++ runner/pkg/discovery/service_test.go | 117 ++ runner/pkg/discovery/sink.go | 174 +++ runner/pkg/discovery/sink_test.go | 113 ++ runner/pkg/dispatch/dispatch.go | 448 +++++++ runner/pkg/dispatch/dispatch_test.go | 441 +++++++ runner/pkg/enrichers/api_traces.go | 246 ++++ runner/pkg/enrichers/api_traces_test.go | 146 +++ runner/pkg/enrichers/app_stats.go | 604 +++++++++ runner/pkg/enrichers/app_stats_queries.go | 53 + runner/pkg/enrichers/app_stats_test.go | 99 ++ runner/pkg/enrichers/finding.go | 157 +++ runner/pkg/enrichers/finding_test.go | 154 +++ runner/pkg/enrichers/logs.go | 193 +++ runner/pkg/enrichers/logs_test.go | 137 +++ runner/pkg/enrichers/loki.go | 160 +++ runner/pkg/enrichers/prom_result.go | 161 +++ runner/pkg/enrichers/prom_result_test.go | 85 ++ runner/pkg/enrichers/prometheus.go | 495 ++++++++ runner/pkg/enrichers/prometheus_test.go | 423 +++++++ runner/pkg/enrichers/query_data.go | 46 + runner/pkg/enrichers/slo.go | 353 ++++++ runner/pkg/enrichers/slo_test.go | 116 ++ runner/pkg/enrichers/timeseries.go | 122 ++ runner/pkg/grafana/proxy.go | 226 ++++ runner/pkg/grafana/proxy_test.go | 263 ++++ runner/pkg/kube/dynamic.go | 195 +++ .../kube/dynamic_envtest_integration_test.go | 161 +++ runner/pkg/kube/dynamic_test.go | 184 +++ runner/pkg/kube/exec.go | 104 ++ runner/pkg/kube/exec_test.go | 76 ++ runner/pkg/kube/handlers.go | 99 ++ runner/pkg/kube/snake.go | 129 ++ runner/pkg/kube/snake_test.go | 191 +++ runner/pkg/metrics/metrics.go | 111 ++ runner/pkg/metrics/metrics_test.go | 91 ++ runner/pkg/mutate/alertrules.go | 86 ++ runner/pkg/mutate/alertrules_test.go | 161 +++ runner/pkg/mutate/drain.go | 204 ++++ runner/pkg/mutate/drain_test.go | 169 +++ runner/pkg/mutate/eviction.go | 17 + runner/pkg/mutate/handlers.go | 277 +++++ runner/pkg/mutate/handlers_test.go | 164 +++ runner/pkg/mutate/lokirules.go | 81 ++ runner/pkg/mutate/lokirules_test.go | 118 ++ runner/pkg/mutate/mutate.go | 176 +++ runner/pkg/mutate/mutate_test.go | 169 +++ runner/pkg/mutate/silence.go | 108 ++ runner/pkg/mutate/silence_test.go | 144 +++ runner/pkg/mutate/workload.go | 179 +++ runner/pkg/mutate/workload_test.go | 374 ++++++ .../chronosphere/chronosphere_test.go | 76 ++ .../pkg/observability/chronosphere/client.go | 69 ++ .../observability/chronosphere/handlers.go | 19 + .../pkg/observability/elasticsearch/client.go | 137 +++ .../elasticsearch/elasticsearch_test.go | 214 ++++ .../observability/elasticsearch/handlers.go | 83 ++ runner/pkg/observability/gcp/client.go | 155 +++ runner/pkg/observability/gcp/gcp_test.go | 213 ++++ runner/pkg/observability/gcp/handlers.go | 53 + .../pkg/observability/httpproxy/handlers.go | 67 + runner/pkg/observability/httpproxy/proxy.go | 128 ++ .../pkg/observability/httpproxy/proxy_test.go | 164 +++ runner/pkg/observability/jaeger/client.go | 132 ++ runner/pkg/observability/jaeger/handlers.go | 59 + .../pkg/observability/jaeger/jaeger_test.go | 176 +++ runner/pkg/observability/loki/client.go | 157 +++ runner/pkg/observability/loki/handlers.go | 82 ++ .../loki/loki_integration_test.go | 119 ++ runner/pkg/observability/loki/loki_test.go | 169 +++ runner/pkg/observability/pinot/client.go | 104 ++ runner/pkg/observability/pinot/handlers.go | 44 + runner/pkg/observability/pinot/pinot_test.go | 178 +++ runner/pkg/observability/prometheus/client.go | 201 +++ .../pkg/observability/prometheus/handlers.go | 105 ++ .../prometheus/prometheus_integration_test.go | 207 ++++ .../prometheus/prometheus_test.go | 251 ++++ runner/pkg/observability/signoz/client.go | 87 ++ runner/pkg/observability/signoz/handlers.go | 28 + .../pkg/observability/signoz/signoz_test.go | 128 ++ runner/pkg/podexec/executor.go | 131 ++ runner/pkg/podexec/handlers.go | 108 ++ .../podexec_envtest_integration_test.go | 91 ++ runner/pkg/podexec/podexec_test.go | 156 +++ runner/pkg/podexec/profiler.go | 635 ++++++++++ runner/pkg/podexec/profiler_tar.go | 68 ++ runner/pkg/podexec/profiler_test.go | 607 +++++++++ runner/pkg/podrunner/handlers.go | 18 + runner/pkg/podrunner/runner.go | 404 ++++++ runner/pkg/podrunner/runner_test.go | 356 ++++++ runner/pkg/podshell/session.go | 402 ++++++ runner/pkg/podshell/session_test.go | 107 ++ runner/pkg/relay/client.go | 152 +++ runner/pkg/relay/client_test.go | 111 ++ runner/pkg/relay/types.go | 44 + runner/pkg/scanners/handlers.go | 20 + runner/pkg/scanners/jobspec.go | 34 + runner/pkg/scanners/primitives.go | 193 +++ runner/pkg/scanners/scanners.go | 295 +++++ .../scanners_envtest_integration_test.go | 186 +++ runner/pkg/scanners/scanners_test.go | 564 +++++++++ runner/pkg/servicemap/build.go | 326 +++++ runner/pkg/servicemap/build_test.go | 210 ++++ runner/pkg/servicemap/handlers.go | 104 ++ runner/pkg/servicemap/parser.go | 90 ++ runner/pkg/servicemap/parser_test.go | 68 ++ runner/pkg/servicemap/queries.go | 141 +++ runner/pkg/servicemap/queries_test.go | 62 + runner/pkg/servicemap/render.go | 148 +++ runner/pkg/servicemap/render_test.go | 131 ++ runner/pkg/servicemap/service.go | 141 +++ runner/pkg/servicemap/service_test.go | 207 ++++ runner/pkg/servicemap/types.go | 108 ++ runner/pkg/servicemap/world.go | 115 ++ runner/pkg/svcdiscover/discover.go | 160 +++ runner/pkg/svcdiscover/discover_test.go | 111 ++ runner/pkg/tasks/poller.go | 260 ++++ runner/pkg/tasks/poller_test.go | 163 +++ runner/pkg/telemetry/autoscaler.go | 92 ++ runner/pkg/telemetry/autoscaler_test.go | 71 ++ runner/pkg/telemetry/cluster_provider.go | 265 ++++ runner/pkg/telemetry/cluster_provider_test.go | 326 +++++ runner/pkg/telemetry/prom_flags.go | 44 + runner/pkg/telemetry/prom_flags_test.go | 69 ++ runner/pkg/telemetry/service.go | 435 +++++++ runner/pkg/telemetry/service_test.go | 309 +++++ runner/pkg/triggers/diff.go | 336 +++++ runner/pkg/triggers/diff_test.go | 181 +++ runner/pkg/triggers/engine.go | 223 ++++ runner/pkg/triggers/events_block.go | 111 ++ runner/pkg/triggers/events_block_test.go | 228 ++++ runner/pkg/triggers/owner.go | 103 ++ runner/pkg/triggers/predicates.go | 849 +++++++++++++ runner/pkg/triggers/predicates_test.go | 943 ++++++++++++++ runner/pkg/triggers/ratelimit.go | 98 ++ runner/pkg/triggers/ratelimit_test.go | 72 ++ runner/pkg/triggers/types.go | 193 +++ runner/pkg/version/version.go | 27 + runner/pkg/version/version_test.go | 34 + 183 files changed, 34010 insertions(+), 1 deletion(-) create mode 100644 .github/workflows/runner-image.yaml create mode 100644 .github/workflows/runner-lint-test.yaml create mode 100644 runner/.editorconfig create mode 100644 runner/.env.example create mode 100644 runner/.gitignore create mode 100644 runner/.golangci.yml create mode 100644 runner/Dockerfile create mode 100644 runner/Makefile create mode 100644 runner/README.md create mode 100644 runner/cmd/agent/k8s_events_lister.go create mode 100644 runner/cmd/agent/main.go create mode 100644 runner/docs/actions.md create mode 100644 runner/docs/architecture.md create mode 100644 runner/docs/configuration.md create mode 100644 runner/docs/development.md create mode 100644 runner/go.mod create mode 100644 runner/go.sum create mode 100644 runner/internal/k8sclient/k8sclient.go create mode 100644 runner/internal/k8sclient/k8sclient_test.go create mode 100644 runner/pkg/alerts/auth.go create mode 100644 runner/pkg/alerts/finding.go create mode 100644 runner/pkg/alerts/finding_test.go create mode 100644 runner/pkg/alerts/server.go create mode 100644 runner/pkg/alerts/server_test.go create mode 100644 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100644 runner/pkg/servicemap/parser_test.go create mode 100644 runner/pkg/servicemap/queries.go create mode 100644 runner/pkg/servicemap/queries_test.go create mode 100644 runner/pkg/servicemap/render.go create mode 100644 runner/pkg/servicemap/render_test.go create mode 100644 runner/pkg/servicemap/service.go create mode 100644 runner/pkg/servicemap/service_test.go create mode 100644 runner/pkg/servicemap/types.go create mode 100644 runner/pkg/servicemap/world.go create mode 100644 runner/pkg/svcdiscover/discover.go create mode 100644 runner/pkg/svcdiscover/discover_test.go create mode 100644 runner/pkg/tasks/poller.go create mode 100644 runner/pkg/tasks/poller_test.go create mode 100644 runner/pkg/telemetry/autoscaler.go create mode 100644 runner/pkg/telemetry/autoscaler_test.go create mode 100644 runner/pkg/telemetry/cluster_provider.go create mode 100644 runner/pkg/telemetry/cluster_provider_test.go create mode 100644 runner/pkg/telemetry/prom_flags.go create mode 100644 runner/pkg/telemetry/prom_flags_test.go create mode 100644 runner/pkg/telemetry/service.go create mode 100644 runner/pkg/telemetry/service_test.go create mode 100644 runner/pkg/triggers/diff.go create mode 100644 runner/pkg/triggers/diff_test.go create mode 100644 runner/pkg/triggers/engine.go create mode 100644 runner/pkg/triggers/events_block.go create mode 100644 runner/pkg/triggers/events_block_test.go create mode 100644 runner/pkg/triggers/owner.go create mode 100644 runner/pkg/triggers/predicates.go create mode 100644 runner/pkg/triggers/predicates_test.go create mode 100644 runner/pkg/triggers/ratelimit.go create mode 100644 runner/pkg/triggers/ratelimit_test.go create mode 100644 runner/pkg/triggers/types.go create mode 100644 runner/pkg/version/version.go create mode 100644 runner/pkg/version/version_test.go diff --git a/.github/workflows/runner-image.yaml b/.github/workflows/runner-image.yaml new file mode 100644 index 0000000..dc54127 --- /dev/null +++ b/.github/workflows/runner-image.yaml @@ -0,0 +1,52 @@ +name: Runner - Build Image + +on: + workflow_dispatch: + push: + branches: [main] + paths: ['runner/**'] + +# Pushes to GHCR (ghcr.io/nudgebee/nudgebee-agent). Multi-arch (amd64+arm64) +# since target nodes can be either. The image name is kept from the former +# nudgebee-agent repo so the chart's update-image-tags workflow picks up new +# tags unchanged. main is the release branch. + +jobs: + build: + runs-on: ubuntu-latest + permissions: + contents: read + packages: write + steps: + - name: Set up QEMU + uses: docker/setup-qemu-action@v4 + + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v4 + + - uses: actions/checkout@v6 + with: + fetch-depth: 0 + + - name: Log in to GitHub Container Registry + uses: docker/login-action@v4 + with: + registry: ghcr.io + username: ${{ github.actor }} + password: ${{ secrets.GITHUB_TOKEN }} + + - name: Create tag name + run: echo "tag=$(date +'%Y-%m-%dT%H-%M-%S')_$GITHUB_SHA" >> $GITHUB_ENV + + - name: Build and Push Image + uses: docker/build-push-action@v7 + with: + platforms: linux/amd64,linux/arm64 + context: runner + file: runner/Dockerfile + push: true + build-args: | + VERSION=${{ env.tag }} + COMMIT=${{ github.sha }} + tags: | + ghcr.io/nudgebee/nudgebee-agent:${{ env.tag }} diff --git a/.github/workflows/runner-lint-test.yaml b/.github/workflows/runner-lint-test.yaml new file mode 100644 index 0000000..37e63fe --- /dev/null +++ b/.github/workflows/runner-lint-test.yaml @@ -0,0 +1,71 @@ +name: Runner - Lint and Test + +on: + workflow_dispatch: + pull_request: + branches: [main] + paths: ['runner/**'] + push: + branches: [main] + paths: ['runner/**'] + +jobs: + test: + name: Lint + Test + runs-on: ubuntu-latest + defaults: + run: + working-directory: runner + strategy: + matrix: + go-version: ['1.26.x'] + + steps: + - uses: actions/checkout@v6 + with: + fetch-depth: 0 + + - name: Setup Go ${{ matrix.go-version }} + uses: actions/setup-go@v6 + with: + go-version: ${{ matrix.go-version }} + cache: true + cache-dependency-path: runner/go.sum + + - name: gofmt check + run: | + gofmt_diff=$(gofmt -s -l . | grep -v '^vendor/' || true) + if [ -n "$gofmt_diff" ]; then + echo "Files need gofmt -s -w:" + echo "$gofmt_diff" + exit 1 + fi + + - name: go vet + run: go vet ./... + + - name: golangci-lint + uses: golangci/golangci-lint-action@v9 + with: + version: v2.9.0 + args: --timeout 10m + working-directory: runner + + - name: Unit tests with race detector + run: go test -race -count=1 ./... + + - name: Coverage + run: | + go test -race -count=1 \ + -coverpkg=$(go list ./pkg/... ./internal/... | grep -v /pkg/version | tr '\n' ',' | sed 's/,$//') \ + -coverprofile=coverage.out -covermode=atomic \ + ./pkg/... ./internal/... + go tool cover -func=coverage.out | tail -1 + + - name: Upload coverage artefact + if: always() + uses: actions/upload-artifact@v7 + with: + name: coverage + path: runner/coverage.out + retention-days: 7 diff --git a/README.md b/README.md index d53f871..a207f3f 100644 --- a/README.md +++ b/README.md @@ -11,7 +11,7 @@ Helm chart for the NudgeBee Kubernetes agent. The agent runs in your cluster, co | Component | Purpose | | --- | --- | -| `runner` | Connects to the NudgeBee backend over WebSocket; executes diagnostic and remediation actions in-cluster | +| `runner` | Connects to the NudgeBee backend over WebSocket; executes diagnostic and remediation actions in-cluster (source: [`runner/`](runner/)) | | `kubewatch` (forwarder) | Streams Kubernetes resource changes and events to the runner | | `node-agent` (DaemonSet) | Per-node logs, profiles, and traces collector (eBPF-based) | | `opencost` (subchart) | Kubernetes cost allocation metrics | diff --git a/runner/.editorconfig b/runner/.editorconfig new file mode 100644 index 0000000..1221fd0 --- /dev/null +++ b/runner/.editorconfig @@ -0,0 +1,18 @@ +root = true + +[*] +charset = utf-8 +end_of_line = lf +insert_final_newline = true +trim_trailing_whitespace = true + +[*.go] +indent_style = tab +indent_size = 4 + +[*.{yml,yaml,json,md}] +indent_style = space +indent_size = 2 + +[Makefile] +indent_style = tab diff --git a/runner/.env.example b/runner/.env.example new file mode 100644 index 0000000..d018df2 --- /dev/null +++ b/runner/.env.example @@ -0,0 +1,54 @@ +# nudgebee-agent — example environment. +# +# Copy to .env (gitignored) and fill in. See docs/configuration.md for the +# full surface; only NUDGEBEE_AUTH_SECRET_KEY and WEBSOCKET_RELAY_ADDRESS +# are strictly required to start. + +# --- Required --------------------------------------------------------------- + +# Relay /register URL the agent connects to (WSS in prod). +WEBSOCKET_RELAY_ADDRESS=wss://relay.nudgebee.com/register + +# Tenant auth secret. Used as Basic-Auth on the WS handshake AND as the +# HMAC signing key for action requests. +NUDGEBEE_AUTH_SECRET_KEY=replace-me + +# --- Identification (recommended) ------------------------------------------- + +# Backend HTTP base URL — alerts forward, refresh_playbook, discovery sink, +# scanner output upload all need this. +NUDGEBEE_ENDPOINT=https://api.nudgebee.com + +# Tenant account id; sent as X-NB-Account-Id on backend HTTP calls. +# ACCOUNT_ID= + +# Cluster name; sent as X-NB-Cluster. +# CLUSTER_NAME= + +# --- HTTP server ------------------------------------------------------------ + +# Address for /api/alerts, /metrics, /healthz. +# HTTP_LISTEN_ADDR=:5000 + +# --- Observability (optional but typical) ----------------------------------- + +# PROMETHEUS_URL=http://prometheus.monitoring.svc:9090 +# LOKI_URL=http://loki.logging.svc:3100 +# ELASTICSEARCH_URL= +# SIGNOZ_URL= +# SIGNOZ_API_KEY= + +# --- Subsystem toggles ------------------------------------------------------ + +# Discovery / kube reads / pod-exec are default-on. Disable with =false. +# DISCOVERY_ENABLED=false +# KUBE_ENABLED=false +# PODEXEC_ENABLED=false + +# Mutations + scanners default OFF — opt in for production blast-radius. +# MUTATE_ENABLED=true +# RSA_PRIVATE_KEY_PATH=/etc/nudgebee/agent.key + +# SCANNERS_ENABLED=true +# SCANNER_NAMESPACE=nudgebee +# SCANNER_SERVICE_ACCOUNT=nudgebee-scanner diff --git a/runner/.gitignore b/runner/.gitignore new file mode 100644 index 0000000..2ce46d6 --- /dev/null +++ b/runner/.gitignore @@ -0,0 +1,12 @@ +bin/ +.idea/ +.vscode/ +*.swp +.DS_Store +coverage.out +coverage.html +cov.out +.env +.env.local +*.pem +*.key diff --git a/runner/.golangci.yml b/runner/.golangci.yml new file mode 100644 index 0000000..0f6eca2 --- /dev/null +++ b/runner/.golangci.yml @@ -0,0 +1,64 @@ +version: "2" + +run: + timeout: 10m + +linters: + default: none + enable: + - errcheck + - govet + - ineffassign + - staticcheck + - unused + - misspell + - revive + - bodyclose + - gocritic + - gosec + - unconvert + - unparam + + settings: + revive: + rules: + - name: var-naming + arguments: + - [] # allowList + - [] # blockList + - - skipPackageNameChecks: true + - name: package-comments + - name: exported + disabled: true + gosec: + excludes: + # G104 — Errors unhandled. We rely on errcheck instead. + - G104 + # G304 — File path provided as taint input. The agent legitimately + # reads paths from config (RSA_PRIVATE_KEY_PATH, KUBECONFIG, etc.). + - G304 + # G101 — Looks for hardcoded credentials. False-positive on the AWS + # IMDS URL (http://169.254.169.254/...) which is a well-known + # well-known link-local endpoint, not a credential. + - G101 + + exclusions: + rules: + - path: _test\.go + linters: + - gosec + - errcheck + - unparam + - bodyclose + - path: pkg/version/ + linters: + - unused + +formatters: + enable: + - gofmt + - goimports + settings: + goimports: + local-prefixes: + - github.com/nudgebee/nudgebee-agent diff --git a/runner/Dockerfile b/runner/Dockerfile new file mode 100644 index 0000000..474050b --- /dev/null +++ b/runner/Dockerfile @@ -0,0 +1,43 @@ +# Multi-stage build. The final image is alpine-based so we can ship a +# working `kubectl` binary alongside the agent — the kubectl_command_executor +# action shells out to it (pkg/kube/exec.go). + +FROM golang:1.26-alpine AS build +WORKDIR /src + +ARG VERSION=dev +ARG COMMIT=unknown +ARG BUILD_TIME=unknown +ENV CGO_ENABLED=0 GOFLAGS=-trimpath + +COPY go.mod go.sum ./ +RUN go mod download + +COPY . . +RUN go build \ + -ldflags="-s -w \ + -X github.com/nudgebee/nudgebee-agent/pkg/version.Version=${VERSION} \ + -X github.com/nudgebee/nudgebee-agent/pkg/version.Commit=${COMMIT} \ + -X github.com/nudgebee/nudgebee-agent/pkg/version.BuildTime=${BUILD_TIME}" \ + -o /out/nudgebee-agent \ + ./cmd/agent + +# Pin kubectl to a known-good version. Bump alongside the Kubernetes versions +# we test against. The binary is amd64; if the agent runs on arm64 nodes, the +# build pipeline should pull the arm64 variant. Currently we only build amd64 +# images (.github/workflows/build-image.yaml). +FROM alpine:3.23 AS kubectl +ARG KUBECTL_VERSION=v1.32.1 +RUN apk add --no-cache curl ca-certificates && \ + curl -fsSLo /usr/local/bin/kubectl "https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl" && \ + chmod +x /usr/local/bin/kubectl + +FROM alpine:3.23 +WORKDIR / +RUN apk add --no-cache ca-certificates && \ + addgroup -S nonroot -g 65532 && \ + adduser -S -D -u 65532 -G nonroot nonroot +COPY --from=build /out/nudgebee-agent /nudgebee-agent +COPY --from=kubectl /usr/local/bin/kubectl /usr/local/bin/kubectl +USER nonroot:nonroot +ENTRYPOINT ["/nudgebee-agent"] diff --git a/runner/Makefile b/runner/Makefile new file mode 100644 index 0000000..4ed6897 --- /dev/null +++ b/runner/Makefile @@ -0,0 +1,78 @@ +# nudgebee-agent — minimal Makefile for the Go agent. + +BINARY := nudgebee-agent +PKG := github.com/nudgebee/nudgebee-agent +VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo dev) +COMMIT ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown) +BUILD_TIME ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ) + +LDFLAGS := -s -w \ + -X $(PKG)/pkg/version.Version=$(VERSION) \ + -X $(PKG)/pkg/version.Commit=$(COMMIT) \ + -X $(PKG)/pkg/version.BuildTime=$(BUILD_TIME) + +.PHONY: fmt lint test test-coverage test-integration build run validate clean docker-build setup-envtest + +# K8s version pinned for envtest; bump in lockstep with the cluster versions +# we support. setup-envtest downloads kube-apiserver/etcd/kubectl on first use. +ENVTEST_K8S_VERSION ?= 1.32.x + +fmt: + gofmt -s -w . + +lint: + go vet ./... + @command -v golangci-lint >/dev/null 2>&1 && golangci-lint run --timeout 5m || \ + echo "golangci-lint not installed; skipping" + +# Unit tests only (no Docker, no envtest). Fast — runs in seconds. +test: + go test -race -count=1 ./... + +# Coverage report for unit tests. Open coverage.html in a browser. +# Excludes cmd/agent (integration glue, exercised by integration tests) and +# pkg/version (linker-stamped variables). Standard pattern for Go projects. +COVER_PKG := $(shell go list ./pkg/... ./internal/... | grep -v /pkg/version | tr '\n' ',' | sed 's/,$$//') + +test-coverage: + go test -race -count=1 -coverpkg=$(COVER_PKG) -coverprofile=coverage.out -covermode=atomic \ + ./pkg/... ./internal/... + go tool cover -func=coverage.out | tail -1 + @command -v go >/dev/null && go tool cover -html=coverage.out -o coverage.html && \ + echo "→ coverage.html" + +# Integration tests: real kube-apiserver via envtest + real Prometheus/Loki +# via testcontainers-go (Docker required). Slower — minutes. +# +# Requires `setup-envtest` on PATH. Run `make setup-envtest` once. +test-integration: ensure-envtest + KUBEBUILDER_ASSETS="$$(setup-envtest use $(ENVTEST_K8S_VERSION) -p path)" \ + go test -race -count=1 -tags=integration -timeout 5m ./... + +# Idempotent: installs setup-envtest into $GOPATH/bin and pre-downloads +# the K8s test binaries so test-integration is reproducible. +setup-envtest: + go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest + $$(go env GOPATH)/bin/setup-envtest use $(ENVTEST_K8S_VERSION) + +# Internal: fail with a helpful message if setup-envtest isn't on PATH. +ensure-envtest: + @command -v setup-envtest >/dev/null 2>&1 || { \ + echo "setup-envtest not found on PATH."; \ + echo "Run: make setup-envtest"; \ + echo "Then ensure $$(go env GOPATH)/bin is on PATH."; \ + exit 1; } + +validate: fmt lint test + +build: + CGO_ENABLED=0 go build -trimpath -ldflags='$(LDFLAGS)' -o bin/$(BINARY) ./cmd/agent + +run: + go run ./cmd/agent + +docker-build: + docker build -t nudgebee-agent:$(VERSION) -f Dockerfile . + +clean: + rm -rf bin/ coverage.out coverage.html diff --git a/runner/README.md b/runner/README.md new file mode 100644 index 0000000..b85eb77 --- /dev/null +++ b/runner/README.md @@ -0,0 +1,142 @@ +# nudgebee-agent + +The Nudgebee Kubernetes agent — a small Go binary that runs in a customer's K8s cluster and exposes a primitive surface (kube reads, observability proxies, mutations, scanners, discovery) over a WebSocket connection to the Nudgebee backend. + +**All composition / playbook / enricher logic lives on the backend** — this agent is a thin in-cluster gateway. + +> This is the `runner` component of the [NudgeBee Kubernetes agent](../README.md). It is built into the `ghcr.io/nudgebee/nudgebee-agent` image and deployed by the Helm chart in [`charts/nudgebee-agent`](../charts/nudgebee-agent). The other deployed components (`node-agent`, `kubewatch`) live in their own repositories. + +Licensed under Apache-2.0. + +## What it does + +Three concurrent subsystems run in one process: + +1. **WS dispatcher** — connects to the Nudgebee relay over WebSocket, receives signed action requests, runs them under a bounded worker pool, returns responses. Actions cover observability proxies, kube reads/mutations, pod-exec, scanners, service-map, and discovery (see [docs/actions.md](docs/actions.md)). +2. **Discovery** — `client-go` shared informers watch core K8s resources and POST snapshots + deltas to `/v1/k8s/discovery/{type}` on the backend. +3. **HTTP server** — receives AlertManager webhooks at `/api/alerts` and forwards them to the backend, exposes Prometheus metrics at `/metrics`, plus `/healthz`. + +## Quick start + +### Build +```bash +make build # → bin/nudgebee-agent (stripped, version-stamped) +make docker-build # → nudgebee-agent: image +``` + +### Test +```bash +make test # unit tests, ~10s, no Docker needed +make test-coverage # unit + coverage report (coverage.html) +make setup-envtest # one-time: download kube-apiserver/etcd binaries +make test-integration # unit + real K8s + real Prometheus + real Loki (Docker required, ~1 min) +``` + +### Run locally +```bash +export WEBSOCKET_RELAY_ADDRESS=ws://relay.nudgebee.local:8080/register +export NUDGEBEE_AUTH_SECRET_KEY= +export NUDGEBEE_ENDPOINT=https://api.nudgebee.com +export PROMETHEUS_URL=http://prometheus.monitoring.svc:9090 +./bin/nudgebee-agent +``` + +The agent connects to the relay, reads its kubeconfig (or in-cluster credentials), and starts answering action requests. K8s subsystems (discovery, kube reads, pod-exec) are default-on; if no kubeconfig is present, the agent logs a warning and serves only observability proxies. See [docs/configuration.md](docs/configuration.md) for the full env-var surface. + +## Architecture at a glance + +``` +┌───────────────────────────────────────────────────────────────┐ +│ Customer Kubernetes cluster │ +│ │ +│ AlertManager ──webhook──┐ │ +│ K8s events watcher ─────┤ │ +│ │ │ +│ ┌────────▼────────┐ │ +│ │ nudgebee-agent │ │ +│ │ │ │ +│ │ ┌─────────────┐ │ kube/prom/loki │ +│ │ │ Dispatcher │ │◄─────query primitives │ +│ │ │ (worker │ │ │ +│ │ │ pools) │ │ │ +│ │ └──────┬──────┘ │ Trivy/Popeye Jobs │ +│ │ │ │──────►create+watch │ +│ │ ┌──────▼──────┐ │ │ +│ │ │ WS client │ │ │ +│ │ │ (auto-recon)│ │ │ +│ │ └──────┬──────┘ │ │ +│ └────────┼────────┘ │ +│ │ │ +└───────────────────────────┼───────────────────────────────────┘ + │ WSS + Basic-Auth + │ HMAC-signed action requests + ▼ + ┌──────────────────┐ + │ Nudgebee relay │ + └─────────┬────────┘ + │ + ▼ + ┌──────────────────┐ + │ Nudgebee backend │ + │ (composition, │ + │ playbooks, │ + │ enrichers) │ + └──────────────────┘ +``` + +See [docs/architecture.md](docs/architecture.md) for the full design. + +## Action surface + +Actions across 8 groups: + +| Group | Examples | Count | +|---|---|---| +| Observability proxies | `prometheus_query`, `query_loki`, `query_es`, `signoz_query_range`, `jaeger_query_traces`, `chronosphere_query_traces`, `gke_logs`, `http_proxy_request` | 27 | +| Kube reads | `get_resource`, `get_resource_yaml`, `list_resource_names`, `kubectl_command_executor` | 4 | +| Pod-exec | `pod_bash_enricher`, `pod_script_run_enricher` | 2 | +| Mutations | `delete_pod`, `drain`, `cordon`, `rollout_restart`, alert-rule CRUD, silences CRUD | 17 | +| Scanners | `image_scanner` (Trivy), `popeye_scan`, `krr_scan`, `kube_bench_scan`, `certificate_scanner` | 6 | +| Service map | `service_map`, `service_map_enricher`, `traces_dependency_map` | 3 | +| Control plane | `ping`, `echo`, `health`, `refresh_playbook` | 4 | +| Discovery | Pod, Deployment, StatefulSet, DaemonSet, ReplicaSet, Job, CronJob, Node, Namespace, HelmRelease | 10 resource types | + +Plus background subsystems: AlertManager forwarder, OpenCost publisher, task poller, Prometheus `/metrics`. + +[Full action list with parameters →](docs/actions.md) + +## Authentication + +Three modes: + +- **HMAC signature** — relay HMACs the action body with the tenant's signing key +- **RSA partial-keys** — required for mutations and pod-exec; agent loads its private key from `RSA_PRIVATE_KEY_PATH` +- **Light-action allowlist** — read-only actions (Prometheus query, get_resource, etc.) skip signature checks; relay is the perimeter + +The allowlist is hot-swappable via `refresh_playbook` so new read-only actions can roll out without a customer Helm upgrade. + +## Repo layout + +``` +cmd/agent/ — main entry point + wiring +pkg/relay/ — WS client (dial, greeting, reconnect) +pkg/auth/ — HMAC + RSA-OAEP partial-keys + light-action allowlist +pkg/canonjson/ — byte-deterministic JSON for HMAC parity with Python +pkg/dispatch/ — action registry + worker pools + 180s deadline +pkg/discovery/ — client-go informers + sink + converters +pkg/observability/ — Prometheus / Loki / ES / Signoz / Jaeger / Chronosphere / GCP / http proxy +pkg/kube/ — get_resource + kubectl_command_executor +pkg/podexec/ — kubectl exec via SPDY +pkg/mutate/ — delete / drain / cordon / silence CRUD / alert-rule CRUD +pkg/scanners/ — Trivy / Popeye / KRR / kube-bench Job orchestration +pkg/servicemap/ — eBPF-metric → service-topology builder +pkg/alerts/ — AlertManager webhook forwarder +pkg/control/ — refresh_playbook (allowlist hot-reload) +pkg/metrics/ — Prometheus /metrics endpoint +pkg/config/ — env-driven config +internal/k8sclient/ — in-cluster + kubeconfig fallback +``` + +## License + +Apache-2.0 (see [LICENSE](../LICENSE)). diff --git a/runner/cmd/agent/k8s_events_lister.go b/runner/cmd/agent/k8s_events_lister.go new file mode 100644 index 0000000..5f34fb2 --- /dev/null +++ b/runner/cmd/agent/k8s_events_lister.go @@ -0,0 +1,121 @@ +package main + +import ( + "context" + "sort" + "strings" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + + "github.com/nudgebee/nudgebee-agent/pkg/triggers" +) + +// k8sEventsLister wraps a typed clientset to satisfy +// triggers.K8sEventsLister. Used by the engine to attach three event +// tables to every matched Finding (subject / node / namespace). +// +// Implementation notes: +// - Builds an involvedObject field selector from non-empty kind/name. +// Subject queries pass both; node queries pass kind="Node" + name +// with namespace=""; namespace-wide queries pass kind="" + name="" +// with a namespace. +// - Refuses the unbounded case (namespace="" && kind="" && name==""). +// - Caps the result client-side to `limit` rows. We sort by +// LastTimestamp/EventTime descending so the most-recent kubelet +// errors land on top. +// - K8s has two Event APIs (v1 core + events.k8s.io/v1). They share +// storage but the new API exposes richer fields (series, reportingController). +// For our use-case (showing the most recent BackOff / OOMKilling / +// etc. with timestamp + reason + message), the legacy API is +// sufficient and supported on every cluster. +type k8sEventsLister struct { + cs kubernetes.Interface +} + +func newK8sEventsLister(cs kubernetes.Interface) triggers.K8sEventsLister { + return &k8sEventsLister{cs: cs} +} + +func (l *k8sEventsLister) ListEvents(ctx context.Context, namespace, kind, name string, limit int) ([]triggers.K8sEvent, error) { + if l.cs == nil { + return nil, nil + } + if namespace == "" && kind == "" && name == "" { + return nil, nil + } + var parts []string + if kind != "" { + parts = append(parts, "involvedObject.kind="+kind) + } + if name != "" { + parts = append(parts, "involvedObject.name="+name) + } + opts := metav1.ListOptions{ + // Pull a generous chunk; we sort + cap client-side. + Limit: int64(limit * 2), + } + if len(parts) > 0 { + opts.FieldSelector = strings.Join(parts, ",") + } + list, err := l.cs.CoreV1().Events(namespace).List(ctx, opts) + if err != nil { + return nil, err + } + events := make([]triggers.K8sEvent, 0, len(list.Items)) + for i := range list.Items { + events = append(events, toAgentEvent(&list.Items[i])) + } + // Sort by LastSeen descending so the most-recent events survive the + // cap below (the API returns them in arbitrary order). + sort.Slice(events, func(i, j int) bool { + return events[i].LastSeen.After(events[j].LastSeen) + }) + if len(events) > limit { + events = events[:limit] + } + return events, nil +} + +// toAgentEvent extracts the columns the UI displays. Falls back across +// the various timestamp fields K8s carries (LastTimestamp / EventTime / +// FirstTimestamp / Series.LastObservedTime) — older kubelets fill +// LastTimestamp; newer event watchers prefer EventTime + Series. +func toAgentEvent(e *corev1.Event) triggers.K8sEvent { + out := triggers.K8sEvent{ + Type: e.Type, + Reason: e.Reason, + Message: strings.TrimSpace(e.Message), + Count: e.Count, + Source: e.Source.Component, + } + if out.Source == "" { + out.Source = e.ReportingController + } + out.FirstSeen = pickEventTime(e.FirstTimestamp.Time, e.EventTime.Time, e.CreationTimestamp.Time) + out.LastSeen = pickEventTime(e.LastTimestamp.Time, e.EventTime.Time, e.CreationTimestamp.Time) + if e.Series != nil { + // The new event API records repeats in Series; LastObservedTime + // is the most up-to-date timestamp. + if !e.Series.LastObservedTime.Time.IsZero() { + out.LastSeen = e.Series.LastObservedTime.Time + } + if e.Series.Count > 0 { + out.Count = e.Series.Count + } + } + return out +} + +// pickEventTime returns the first non-zero timestamp from the candidates. +// Different K8s API versions / event paths populate different fields. +func pickEventTime(candidates ...time.Time) time.Time { + for _, t := range candidates { + if !t.IsZero() { + return t + } + } + return time.Time{} +} diff --git a/runner/cmd/agent/main.go b/runner/cmd/agent/main.go new file mode 100644 index 0000000..1504bbf --- /dev/null +++ b/runner/cmd/agent/main.go @@ -0,0 +1,1081 @@ +// Command nudgebee-agent is the in-cluster Kubernetes agent — a Go binary +// that runs inside a customer's K8s cluster and exposes a primitive +// surface (kube reads, observability proxies, mutations, scanners, +// discovery) over a WebSocket connection to the Nudgebee backend. +package main + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "log/slog" + "maps" + "net/http" + "os" + "os/signal" + "runtime" + "strconv" + "strings" + "syscall" + "time" + + "golang.org/x/sync/errgroup" + + "k8s.io/client-go/dynamic" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/rest" + + "github.com/nudgebee/nudgebee-agent/internal/k8sclient" + "github.com/nudgebee/nudgebee-agent/pkg/alerts" + "github.com/nudgebee/nudgebee-agent/pkg/auth" + chclient "github.com/nudgebee/nudgebee-agent/pkg/clickhouse" + "github.com/nudgebee/nudgebee-agent/pkg/config" + "github.com/nudgebee/nudgebee-agent/pkg/control" + "github.com/nudgebee/nudgebee-agent/pkg/discovery" + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" + "github.com/nudgebee/nudgebee-agent/pkg/enrichers" + "github.com/nudgebee/nudgebee-agent/pkg/grafana" + "github.com/nudgebee/nudgebee-agent/pkg/kube" + "github.com/nudgebee/nudgebee-agent/pkg/metrics" + "github.com/nudgebee/nudgebee-agent/pkg/mutate" + "github.com/nudgebee/nudgebee-agent/pkg/observability/chronosphere" + "github.com/nudgebee/nudgebee-agent/pkg/observability/elasticsearch" + "github.com/nudgebee/nudgebee-agent/pkg/observability/gcp" + "github.com/nudgebee/nudgebee-agent/pkg/observability/httpproxy" + "github.com/nudgebee/nudgebee-agent/pkg/observability/jaeger" + "github.com/nudgebee/nudgebee-agent/pkg/observability/loki" + "github.com/nudgebee/nudgebee-agent/pkg/observability/pinot" + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" + "github.com/nudgebee/nudgebee-agent/pkg/observability/signoz" + "github.com/nudgebee/nudgebee-agent/pkg/podexec" + "github.com/nudgebee/nudgebee-agent/pkg/podrunner" + "github.com/nudgebee/nudgebee-agent/pkg/podshell" + "github.com/nudgebee/nudgebee-agent/pkg/relay" + "github.com/nudgebee/nudgebee-agent/pkg/scanners" + "github.com/nudgebee/nudgebee-agent/pkg/servicemap" + "github.com/nudgebee/nudgebee-agent/pkg/svcdiscover" + "github.com/nudgebee/nudgebee-agent/pkg/tasks" + "github.com/nudgebee/nudgebee-agent/pkg/telemetry" + "github.com/nudgebee/nudgebee-agent/pkg/triggers" + "github.com/nudgebee/nudgebee-agent/pkg/version" +) + +// triggerAdapter bridges pkg/triggers.Engine to alerts.TriggerEngine +// so pkg/alerts doesn't have to import pkg/triggers (which would couple +// two layers that should stay independent — alerts owns wire-shape, +// triggers owns matcher logic). +type triggerAdapter struct{ e *triggers.Engine } + +func (a *triggerAdapter) MatchK8sEvent(operation, kind string, obj, oldObj map[string]any) []alerts.MatchedTrigger { + matches := a.e.Match(triggers.IncomingK8sEvent{ + Operation: operation, Kind: kind, Obj: obj, OldObj: oldObj, + }) + out := make([]alerts.MatchedTrigger, 0, len(matches)) + for _, m := range matches { + // Copy ExtraBlocks across the layer boundary. The two slices have + // the same element shape (open map[string]any) but different + // declared types, so we re-wrap rather than alias. + extras := make([]map[string]any, 0, len(m.ExtraBlocks)) + for _, b := range m.ExtraBlocks { + extras = append(extras, map[string]any(b)) + } + out = append(out, alerts.MatchedTrigger{ + AggregationKey: m.Spec.AggregationKey, + Priority: m.Spec.Priority, + FindingType: m.Spec.FindingType, + Fingerprint: m.Fingerprint, + Owner: alerts.OwnerRef{Name: m.Owner.Name, Kind: m.Owner.Kind}, + SubjectName: m.SubjectName, + SubjectNamespace: m.SubjectNamespace, + SubjectKind: m.SubjectKind, + SubjectNode: m.SubjectNode, + MatcherName: m.Spec.Name, + ExtraBlocks: extras, + }) + } + return out +} + +func main() { + logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo})) + slog.SetDefault(logger) + + logger.Info("nudgebee-agent starting", + "version", version.Version, + "commit", version.Commit, + "build_time", version.BuildTime, + ) + + cfg, err := config.FromEnv() + if err != nil { + logger.Error("config error", "err", err) + fmt.Fprintf(os.Stderr, "config error: %v\n", err) + os.Exit(1) + } + + ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM) + + if err := run(ctx, logger, cfg); err != nil && err != context.Canceled { + logger.Error("agent exited with error", "err", err) + cancel() + os.Exit(1) + } + cancel() + logger.Info("nudgebee-agent stopped") +} + +func run(ctx context.Context, logger *slog.Logger, cfg *config.Config) error { + handlers := map[string]dispatch.Handler{ + "ping": dispatch.SimpleHandler(handlePing), + "echo": dispatch.SimpleHandler(handleEcho), + "health": dispatch.SimpleHandler(handleHealth), + } + lightActions := map[string]struct{}{ + "ping": {}, + "echo": {}, + "health": {}, + } + + // Build the K8s client up-front so service-discovery can run before any + // observability subsystem is wired. If construction fails, we fall back + // to env-only configuration — the agent still serves whatever URLs are + // explicitly set. Discovery is opportunistic. + var ( + typedKube kubernetes.Interface + dynamicKube dynamic.Interface + kubeRestCfg *rest.Config + ) + if cs, restCfg, err := k8sclient.New(""); err == nil { + typedKube = cs + kubeRestCfg = restCfg + if dyn, derr := dynamic.NewForConfig(restCfg); derr == nil { + dynamicKube = dyn + } else { + logger.Warn("dynamic client build failed — mutate alert-rule CRUD disabled", "err", derr) + } + } else { + logger.Warn("k8s client unavailable — discovery / kube / podexec / scanners / mutate disabled, autodiscovery off", "err", err) + cfg.DiscoveryEnabled = false + cfg.KubeEnabled = false + cfg.PodExecEnabled = false + cfg.ScannersEnabled = false + cfg.MutateEnabled = false + } + + // Service-discovery: only fills blank URLs, never overrides env. Mirrors + // the legacy PrometheusDiscovery / AlertManagerDiscovery / GrafanaLokiDiscovery. + // A 1h cache avoids hammering the API server. + disc := svcdiscover.New(typedKube, "") + if cfg.PrometheusURL == "" { + if u := disc.FindFirst(ctx, svcdiscover.PrometheusSelectors); u != "" { + cfg.PrometheusURL = u + logger.Info("prometheus auto-discovered", "url", u) + } + } + if cfg.LokiURL == "" { + if u := disc.FindFirst(ctx, svcdiscover.LokiSelectors); u != "" { + cfg.LokiURL = u + logger.Info("loki auto-discovered", "url", u) + } + } + if cfg.AlertManagerURL == "" { + if u := disc.FindFirst(ctx, svcdiscover.AlertManagerSelectors); u != "" { + cfg.AlertManagerURL = u + logger.Info("alertmanager auto-discovered", "url", u) + } + } + // Mirrors OpenCostDiscovery.find_open_cost_url. + // OPENCOST_ENDPOINT env wins; falls back to in-cluster Service lookup. + opencostURL := os.Getenv("OPENCOST_ENDPOINT") + if opencostURL == "" { + if u := disc.FindFirst(ctx, svcdiscover.OpencostSelectors); u != "" { + opencostURL = u + logger.Info("opencost auto-discovered", "url", u) + } + } + + var promClient *prometheus.Client + if cfg.PrometheusURL != "" { + promClient = prometheus.New(cfg.PrometheusURL, nil) + promClient.ExtraHeaders = config.ParseHeaders(cfg.PrometheusHeaders) + ph := prometheus.Handlers(promClient) + maps.Copy(handlers, ph) + for name := range ph { + lightActions[name] = struct{}{} + } + logger.Info("prometheus enabled", "url", cfg.PrometheusURL, "actions", len(ph)) + + // Enrichers: prometheus_enricher / prometheus_queries_enricher + // produce Finding-shaped responses; api-server's relay.ExecuteAndExtractResponse + // walks findings[].evidence[].data. + promEnr := enrichers.NewPrometheusEnricher(promClient, cfg.AccountID) + handlers["prometheus_enricher"] = func(ctx context.Context, p map[string]any) (any, error) { + return promEnr.HandleEnricher(ctx, p) + } + handlers["prometheus_queries_enricher"] = func(ctx context.Context, p map[string]any) (any, error) { + return promEnr.HandleQueriesEnricher(ctx, p) + } + // `prometheus_labels` returns label *values* for one + // label_name in a Finding-wrapped JsonBlock. Overrides the raw passthrough + // merged in via Handlers(c) above (now exposed under `prometheus_label_names` + // since /api/v1/labels lists names, not values). All production callers — + // api-server services/observability/{prometheus,chronosphere}.go and + // llm/rag-server — send {label_name} and unwrap result_type/data/error. + handlers["prometheus_labels"] = func(ctx context.Context, p map[string]any) (any, error) { + return promEnr.HandleLabels(ctx, p) + } + lightActions["prometheus_enricher"] = struct{}{} + lightActions["prometheus_queries_enricher"] = struct{}{} + lightActions["prometheus_labels"] = struct{}{} + + // application_stats: thin {success,data} shape. Same Prometheus client. + appStats := enrichers.NewAppStatsEnricher(promClient) + handlers["application_stats"] = appStats.Handler() + lightActions["application_stats"] = struct{}{} + + // slo_generator: thin {success,data} shape. Same client. + sloGen := enrichers.NewSLOEnricher(promClient) + handlers["slo_generator"] = sloGen.Handler() + lightActions["slo_generator"] = struct{}{} + + logger.Info("prometheus compat enrichers enabled", "actions", 4) + } + + // Service map needs the same Prometheus client (queries Coroot eBPF + // metrics in-cluster). Gated on PROMETHEUS_URL being set. + if promClient != nil { + smSvc := servicemap.New(promClient, cfg.ClusterName) + smHandlers := servicemap.Handlers(smSvc, cfg.AccountID) + maps.Copy(handlers, smHandlers) + for name := range smHandlers { + lightActions[name] = struct{}{} + } + logger.Info("service_map enabled", "actions", len(smHandlers)) + } + + if cfg.LokiURL != "" { + lc := loki.New(cfg.LokiURL, nil) + lc.ExtraHeaders = config.ParseHeaders(cfg.LokiHeaders) + lh := loki.Handlers(lc) + maps.Copy(handlers, lh) + for name := range lh { + lightActions[name] = struct{}{} + } + + // Compat handlers for the same Loki backend. Action names + // are the ones api-server / playbooks dispatch today; the parameter + // shape is `query` = raw URL query string. + compat := enrichers.NewLokiCompat(lc) + ch := compat.Handlers() + maps.Copy(handlers, ch) + for name := range ch { + lightActions[name] = struct{}{} + } + logger.Info("loki enabled", "url", cfg.LokiURL, "actions", len(lh)+len(ch)) + } + + if cfg.ElasticsearchURL != "" { + ec := elasticsearch.New(cfg.ElasticsearchURL, nil) + ec.Username = cfg.ElasticsearchUser + ec.Password = cfg.ElasticsearchPassword + ec.APIKey = cfg.ElasticsearchAPIKey + eh := elasticsearch.Handlers(ec) + maps.Copy(handlers, eh) + for name := range eh { + lightActions[name] = struct{}{} + } + logger.Info("elasticsearch enabled", "url", cfg.ElasticsearchURL, "actions", len(eh)) + } + + if cfg.SignozURL != "" { + sc := signoz.New(cfg.SignozURL, nil) + sc.APIKey = cfg.SignozAPIKey + sh := signoz.Handlers(sc) + maps.Copy(handlers, sh) + for name := range sh { + lightActions[name] = struct{}{} + } + logger.Info("signoz enabled", "url", cfg.SignozURL, "actions", len(sh)) + } + + if cfg.JaegerURL != "" { + jc := jaeger.New(cfg.JaegerURL, nil) + jh := jaeger.Handlers(jc) + maps.Copy(handlers, jh) + for name := range jh { + lightActions[name] = struct{}{} + } + logger.Info("jaeger enabled", "url", cfg.JaegerURL, "actions", len(jh)) + } + + if cfg.ChronosphereURL != "" { + cc := chronosphere.New(cfg.ChronosphereURL, nil) + cc.APIKey = cfg.ChronosphereAPIKey + ch := chronosphere.Handlers(cc) + maps.Copy(handlers, ch) + for name := range ch { + lightActions[name] = struct{}{} + } + logger.Info("chronosphere enabled", "url", cfg.ChronosphereURL, "actions", len(ch)) + } + + if cfg.PinotURL != "" { + pc := pinot.New(cfg.PinotURL, nil) + pc.AuthToken = cfg.PinotAuthToken + pc.Username = cfg.PinotUsername + pc.Password = cfg.PinotPassword + ph := pinot.Handlers(pc) + maps.Copy(handlers, ph) + for name := range ph { + lightActions[name] = struct{}{} + } + logger.Info("pinot enabled", "url", cfg.PinotURL, "actions", len(ph)) + } + + if targets := config.ParseTargets(cfg.HTTPProxyTargets); len(targets) > 0 { + hp := httpproxy.New(targets, nil) + ph := httpproxy.Handlers(hp) + maps.Copy(handlers, ph) + for name := range ph { + lightActions[name] = struct{}{} + } + logger.Info("http proxy enabled", "targets", len(targets), "actions", len(ph)) + } + + if cfg.GCPEnabled { + gcpClient, err := gcp.New(ctx) + if err != nil { + // Don't fail the whole agent — GCP creds might be missing on this + // cluster. Log and continue; gke_logs / gke_traces just won't be + // registered. + logger.Warn("gcp disabled: ADC unavailable", "err", err) + } else { + gh := gcp.Handlers(gcpClient, cfg.GCPProjectID) + maps.Copy(handlers, gh) + for name := range gh { + lightActions[name] = struct{}{} + } + logger.Info("gcp enabled", "default_project", cfg.GCPProjectID, "actions", len(gh)) + } + } + + // logs_enricher (Finding-shape) reads pod logs through + // the typed client. Light-action — log read is non-mutating; no signature + // required for log reads. + if typedKube != nil { + logsEnr := enrichers.NewLogsEnricher(typedKube, cfg.AccountID) + handlers["logs_enricher"] = logsEnr.Handle + lightActions["logs_enricher"] = struct{}{} + logger.Info("logs_enricher enabled") + } + + // query_data: ClickHouse SQL through the legacy wire shape ({success,data}). + // Registered unconditionally — `query_data` returns an empty + // QueryResult when CLICKHOUSE_ENABLED=False, it doesn't fail-auth. + // With clickhouse.enabled=false in the chart the host env is empty; + // we hand a nil client to QueryData and the handler returns the same + // empty-result shape. api-server callers see an empty response instead + // of an "auth rejected" warning. + var ch *chclient.Client + if cfg.ClickHouseEnabled && cfg.ClickHouseHost != "" { + ch = chclient.New(chclient.Config{ + Host: cfg.ClickHouseHost, + Port: cfg.ClickHousePort, + User: cfg.ClickHouseUser, + Password: cfg.ClickHousePassword, + Database: cfg.ClickHouseDB, + SSLEnabled: cfg.ClickHouseSSL, + }) + logger.Info("query_data enabled", "host", cfg.ClickHouseHost, "port", cfg.ClickHousePort, "db", cfg.ClickHouseDB) + } else { + logger.Info("query_data registered without ClickHouse — returns empty result") + } + handlers["query_data"] = enrichers.QueryData(ch) + lightActions["query_data"] = struct{}{} + + // api_traces_enricher_v2: OTel traces query against the same ClickHouse. + // Same registration semantics as query_data — register unconditionally so + // callers see an empty result instead of "auth rejected" when CH is off. + tracesEnr := enrichers.NewAPITracesEnricher(ch, cfg.AccountID) + handlers["api_traces_enricher_v2"] = tracesEnr.Handler() + lightActions["api_traces_enricher_v2"] = struct{}{} + + if cfg.KubeEnabled { + kc := kube.NewClient(dynamicKube, typedKube) + kx := &kube.KubectlExecutor{} // uses kubectl on PATH + kh := kube.Handlers(kc, kx, cfg.AccountID) + maps.Copy(handlers, kh) + for name := range kh { + // get_resource / get_resource_yaml / list_resource_names are + // read-only and OK as light-action. kubectl_command_executor is + // also restricted to read verbs by pkg/kube/exec.go. + lightActions[name] = struct{}{} + } + logger.Info("kube primitives enabled", "actions", len(kh)) + } + + if cfg.ScannersEnabled { + runner := scanners.NewRunner(typedKube, cfg.ScannerNamespace, cfg.ScannerServiceAccount) + sh := scanners.Handlers(runner) + maps.Copy(handlers, sh) + // schedule_k8s_job / wait_for_k8s_job / get_k8s_job_logs are light-actions. + // Trust chain: api-server holds RELAY_SERVER_SECRET_KEY → relay gates inbound + // requests on it → relay forwards to the agent's outbound WS. Adding HMAC at + // the agent doesn't strengthen that — anyone reaching the relay's /request + // already has the same secret api-server uses. Protection is the agent's + // hygiene clamps (namespace, BackoffLimit=0, concurrency cap=5, TTL=600s, + // 5 MiB log cap), which apply regardless of caller. Same posture as + // kubectl_command_executor (also a light-action under this trust model). + for name := range sh { + lightActions[name] = struct{}{} + } + logger.Info("scanners enabled", "namespace", cfg.ScannerNamespace, "actions", len(sh)) + } + + if cfg.PodExecEnabled { + execer := podexec.New(typedKube, kubeRestCfg) + // pod_profiler reuses the same gating: it spawns a privileged + // debugger pod + runs SPDY exec, both of which need the same + // signing posture as pod_bash_enricher. ProfilerHandler is + // constructed only when restCfg is available (file-copy needs + // SPDY); HandlersWithProfiler omits the action otherwise. + var profiler *podexec.ProfilerHandler + if kubeRestCfg != nil { + profiler = podexec.NewProfilerHandler(typedKube, kubeRestCfg) + } + ph := podexec.HandlersWithProfiler(execer, profiler) + maps.Copy(handlers, ph) + // pod_bash_enricher / pod_profiler run arbitrary commands or spawn + // privileged pods. NOT light-action — require HMAC sig or RSA + // partial-keys. + logger.Info("pod-exec enabled", "actions", len(ph)) + + // pod_script_run_enricher is gated on the same PodExecEnabled flag + // but lives in pkg/podrunner (it spawns a fresh pod from an + // image + sources env vars from a k8s Secret + returns logs as a + // JsonBlock-wrapped Finding — the wire shape api-server's + // relay.CommandExecutor, runbook-server, and llm-server all expect). + // Service account: uses ScannerServiceAccount when set so we don't + // add a new env knob just for this; falls back to "" (cluster default). + runner := podrunner.New(typedKube, cfg.ScannerNamespace, cfg.ScannerServiceAccount, cfg.AccountID) + rh := podrunner.Handlers(runner) + maps.Copy(handlers, rh) + // NOT a light-action — same trust posture as pod_bash_enricher. + logger.Info("pod-runner enabled", + "default_namespace", cfg.ScannerNamespace, + "service_account", cfg.ScannerServiceAccount, + "actions", len(rh)) + } + + if cfg.MutateEnabled { + amHeaders := map[string]string{} + // AlertManagerHeaders use the same comma-separated env format as Loki/Prom. + for k, v := range config.ParseHeaders(os.Getenv("ALERTMANAGER_HEADERS")) { + if len(v) > 0 { + amHeaders[k] = v[0] + } + } + mut := mutate.New(typedKube, cfg.AlertManagerURL, amHeaders) + mut.SetDynamic(dynamicKube) // unlocks PrometheusRule CRUD actions + if cfg.LokiRulesURL != "" { + lokiRulesHeaders := map[string]string{} + for k, v := range config.ParseHeaders(os.Getenv("LOKI_RULES_HEADERS")) { + if len(v) > 0 { + lokiRulesHeaders[k] = v[0] + } + } + mut.SetLokiRules(cfg.LokiRulesURL, lokiRulesHeaders) + } + mh := mutate.Handlers(mut) + maps.Copy(handlers, mh) + // Mutations REQUIRE RSA partial-keys in production. NOT light-action. + logger.Info("mutate enabled", + "alertmanager_url", cfg.AlertManagerURL, + "loki_rules_url", cfg.LokiRulesURL, + "actions", len(mh)) + } + + // Read primitives are light-action (no signature). Mutations and pod-exec + // actions are NOT in lightActions, so the dispatcher rejects them unless + // the request carries a valid HMAC signature OR RSA partial-keys. + validator := &auth.Validator{ + SigningKey: cfg.AuthSecretKey, + LightActions: lightActions, + } + if cfg.RSAPrivateKeyPath != "" { + priv, err := auth.LoadPrivateKey(cfg.RSAPrivateKeyPath) + if err != nil { + return fmt.Errorf("load RSA private key: %w", err) + } + validator.PrivateKey = priv + logger.Info("RSA partial-keys auth enabled", "key_path", cfg.RSAPrivateKeyPath) + } + + // refresh_playbook hot-reloads the allowlist from the backend so we can + // add new actions to a running agent without a customer Helm upgrade. + // Pre-load the validator's atomic allowlist with the startup-built set so + // concurrent refresh + Validate calls share one source of truth. + staticActions := []string{"ping", "echo", "health", "refresh_playbook"} + refresher := control.New(cfg.BackendEndpoint, cfg.AuthSecretKey, cfg.AccountID, cfg.ClusterName, validator) + refresher.StaticActions = staticActions + maps.Copy(handlers, control.Handlers(refresher)) + lightActions["refresh_playbook"] = struct{}{} + validator.SetLightActions(lightActions) + + mreg := metrics.New() + disp := dispatch.New(dispatch.Config{Logger: logger}, validator, handlers) + disp.SetMetrics(mreg) + + // Pod-shell session manager (TerminalRequest WS shape, output_type=Terminal). + // The relay's interactive-shell handler unmarshals AgentResponse.Data as + // a string — without this wired up, every shell session 500s on the relay + // (handlers/ws.go:96). Disabled when the K8s client failed to build. + // The cleanup goroutine is launched below alongside other long-running + // loops (after errgroup is built). + var shellMgr *podshell.Manager + if typedKube != nil && kubeRestCfg != nil { + shellMgr = podshell.NewManager(typedKube, kubeRestCfg) + disp.SetTerminal(&shellTerminalAdapter{m: shellMgr}) + logger.Info("pod_shell enabled") + } + + // Grafana / API proxy (GrafanaRequest WS shape, output_type=Grafana). + // Same wire-shape concern as terminal: data must be JSON-stringified. + grafanaURL := os.Getenv("GRAFANA_URL") + { + grafanaUser := os.Getenv("GRAFANA_USERNAME") + grafanaPass := os.Getenv("GRAFANA_PASSWORD") + var extraHeaders []string + if h := os.Getenv("GRAFANA_EXTRA_HEADER"); h != "" { + extraHeaders = strings.Split(h, ";") + } + // Even without GRAFANA_URL, the agent still needs an APIProxy adapter + // so requests with X-API-Base-URL go through. + // PROMETHEUS_URL + PROMETHEUS_HEADERS wire the X-NB-Request-Type= + // Prometheus path the collector's `/prometheus-v2/*` route forwards + // through (relay-server/pkg/utils/utils.go:77). + gp := grafana.New(grafanaURL, grafanaUser, grafanaPass, extraHeaders, + cfg.PrometheusURL, config.ParseHeaders(cfg.PrometheusHeaders), nil) + disp.SetGrafana(&grafanaAdapter{p: gp}) + if grafanaURL != "" { + logger.Info("grafana proxy enabled", "url", grafanaURL) + } else { + logger.Info("api proxy enabled (grafana unset; APIProxy still routed via X-API-Base-URL)") + } + } + + agentVersion := version.CurrentVersion() + client := relay.NewClient(relay.Config{ + URL: cfg.RelayURL, + AuthSecretKey: cfg.AuthSecretKey, + Greeting: relay.Greeting{ + Action: "auth", + Version: agentVersion, + AgentVersion: agentVersion, + AgentCommit: version.Commit, + AgentBuildTime: version.BuildTime, + }, + Logger: logger, + }, disp.Handle) + + logger.Info("starting relay client", + "url", cfg.RelayURL, + "account_id", cfg.AccountID, + "cluster", cfg.ClusterName, + ) + + g, gctx := errgroup.WithContext(ctx) + + // Pod-shell idle-session reaper. Closes sessions that haven't been touched + // in IdleTimeout. + if shellMgr != nil { + g.Go(func() error { + shellMgr.Run(gctx) + return nil + }) + } + + // Relay WS client. + g.Go(func() error { + if err := client.Run(gctx); err != nil && !errors.Is(err, context.Canceled) { + return fmt.Errorf("relay: %w", err) + } + return nil + }) + + // HTTP server: AlertManager + kubewatch intake + /healthz. Always on so + // K8s probes work even if the backend forward URL is empty. The forwarder + // posts to the existing collector `/v1/k8s/events` endpoint with a top- + // level `event_type` discriminator (`raw_alert` / `raw_k8s_event`); the + // consumer at the backend routes those into the default-Finding + // builder and falls through to the existing storage path. + if cfg.HTTPListenAddr != "" { + var fwdURL string + if cfg.BackendEndpoint != "" { + fwdURL = cfg.BackendEndpoint + "/v1/k8s/events" + } + fwd := alerts.NewForwarder(fwdURL, cfg.AuthSecretKey, cfg.AccountID, cfg.ClusterName, logger) + // Wire the trigger engine. Without this, every kubewatch event is + // dropped (safe default — see plan stage 2.1). With it, only + // events matching a registered predicate produce a Finding. + // When a typed K8s client is available, also pass an events-lister + // so the engine appends a "Recent events" table to every + // matched Finding (kubelet BackOff / Killing / OOMKilling / + // FailedScheduling / image-pull errors etc.) for free. + eng := triggers.NewEngine(triggers.Builtins(), time.Now()) + if typedKube != nil { + eng = eng.WithEventsLister(newK8sEventsLister(typedKube)) + } + fwd.Engine = &triggerAdapter{e: eng} + logger.Info("trigger engine enabled", "matcher_count", len(triggers.Builtins())) + mux := http.NewServeMux() + mux.Handle("/", fwd.Mux()) + mux.Handle("/metrics", mreg.Handler()) + mux.HandleFunc("/api/actions", func(w http.ResponseWriter, r *http.Request) { + if r.Method != http.MethodPost { + http.Error(w, "method not allowed", http.StatusMethodNotAllowed) + return + } + r.Body = http.MaxBytesReader(w, r.Body, 1<<20) // cap request body at 1 MiB + var body relay.ActionRequestBody + if err := json.NewDecoder(r.Body).Decode(&body); err != nil { + http.Error(w, "invalid JSON: "+err.Error(), http.StatusBadRequest) + return + } + msg, _ := json.Marshal(relay.ExternalActionRequest{Body: body, RequestID: "http-direct"}) + var resp *relay.Response + disp.Handle(r.Context(), msg, func(res *relay.Response) error { resp = res; return nil }) + if resp == nil { + http.Error(w, "no response", http.StatusInternalServerError) + return + } + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(resp.StatusCode) + _ = json.NewEncoder(w).Encode(resp) + }) + srv := &http.Server{ + Addr: cfg.HTTPListenAddr, + Handler: mux, + ReadHeaderTimeout: 10 * time.Second, + } + g.Go(func() error { + logger.Info("http server listening", "addr", cfg.HTTPListenAddr, "event_forward_url", fwdURL) + if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) { + return fmt.Errorf("http: %w", err) + } + return nil + }) + g.Go(func() error { + <-gctx.Done() + shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second) + defer cancel() + return srv.Shutdown(shutdownCtx) + }) + } + + // Telemetry: periodic ClusterStatus → /v1/k8s/telemetry. The collector + // stores activity_stats as the agent's `connection_status`, which the UI + // reads to show "Prometheus / Loki / AlertManager / OpenCost / Traces / + // NodeAgent connected". + // + // We mirror the legacy IntegrationHealthChecker probe set — + // Prometheus, AlertManager, OpenCost get HTTP probes inside the + // telemetry package; node-agent count is a Prometheus query we run + // here so we don't wedge a Prom client into the telemetry package. + if cfg.BackendEndpoint != "" { + // Trace-related env vars. We snapshot them once at boot — the + // operator restarts the pod to change JAEGER_ENABLED etc. + jaegerEnabled := os.Getenv("JAEGER_ENABLED") == "true" + jaegerQueryURL := os.Getenv("JAEGER_QUERY_URL") + if jaegerQueryURL == "" { + jaegerQueryURL = cfg.JaegerURL // fall back to JAEGER_URL the agent uses for the jaeger handlers + } + chronosphereEnabled := os.Getenv("CHRONOSPHERE_TRACES_ENABLED") == "true" + chronosphereURL := os.Getenv("CHRONOSPHERE_TRACES_URL") + traceTable := os.Getenv("TRACE_TABLE") + // ClickHouse status for the otel_clickhouse trace provider. Mirrors + // the legacy _check_clickhouse → db.health() probe: the Helm chart + // only sets CLICKHOUSE_HOST when clickhouse/otel-collector is wired, + // so an empty host means traces are off (skip the probe entirely + // — there's nothing to reach). When set, do an HTTP /ping against + // CLICKHOUSE_PORT (chart default 8123, the HTTP port) and reflect + // the probe result. TRACES_ENABLED is honored as an explicit + // override only if set ("true"/"false") — otherwise probe wins. + clickhouseHost := os.Getenv("CLICKHOUSE_HOST") + clickhousePort := os.Getenv("CLICKHOUSE_PORT") + if clickhousePort == "" { + clickhousePort = "8123" + } + agentURL := os.Getenv("AGENT_HTTP_URL") + // Static heartbeat inputs decoded once at startup. PROMETHEUS_ADDITIONAL_LABELS + // is the legacy wire format: comma-separated `key=value` pairs the + // backend stamps onto every PromQL the cluster runs (multi-cluster Prom). + promExtraLabels := parseLabelMap(os.Getenv("PROMETHEUS_ADDITIONAL_LABELS")) + grafanaURL := os.Getenv("GRAFANA_URL") + + // One-shot cluster-provider detection. Provider type, region, zone, + // and account/project/resource-group are stable per cluster lifetime; + // cached for the agent's process lifetime and re-emitted on every tick. + // Drives the backend's cloud_account_attrs auto-populate. + var providerInfo telemetry.ProviderInfo + var k8sServerVersion string + if typedKube != nil { + detectCtx, detectCancel := context.WithTimeout(gctx, 10*time.Second) + providerInfo = telemetry.DetectProvider(detectCtx, typedKube, logger) + detectCancel() + logger.Info("cluster provider detected", + "provider", providerInfo.Provider, + "region", providerInfo.Region, + "zone", providerInfo.Zone, + "account_number_present", providerInfo.AccountNumber != "") + + // K8s server version → telemetry_handler's `stats.k8s_version`. + // The UI's Agent Health card surfaces this as the "K8s + // (Provider/Version)" cell; stays "GKE /" without it. Stable + // per cluster lifetime; cached on the Service struct and + // emitted on every tick. + if serverVersion, err := typedKube.Discovery().ServerVersion(); err != nil { + logger.Warn("k8s server version fetch failed", "err", err) + } else { + k8sServerVersion = serverVersion.GitVersion + logger.Info("k8s server version detected", "version", k8sServerVersion) + } + } + + ts := &telemetry.Service{ + Endpoint: cfg.BackendEndpoint, + AuthSecret: cfg.AuthSecretKey, + AccountID: cfg.AccountID, + ClusterName: cfg.ClusterName, + AgentVersion: agentVersion, + Namespace: os.Getenv("INSTALLATION_NAMESPACE"), + Period: parseTelemetryPeriod(), + Logger: logger, + Provider: providerInfo, + K8sVersion: k8sServerVersion, + Datasources: func() telemetry.Datasources { + // Per-tick probes so the UI flips back when a datasource + // goes down. 5s budget each (httpProbe), bounded by the + // surrounding postOnce timeout. + probeCtx, probeCancel := context.WithTimeout(gctx, 30*time.Second) + defer probeCancel() + probeClient := &http.Client{Timeout: 5 * time.Second} + logsProvider, logsURL, logsOK, logCfg := probeLogsProvider(probeCtx, cfg) + as := telemetry.DetectAutoScaler(probeCtx, typedKube, providerInfo.Provider, logger) + clickhouseStatus := probeClickhouse(probeCtx, probeClient, clickhouseHost, clickhousePort) + return telemetry.Datasources{ + PrometheusURL: cfg.PrometheusURL, + AlertManagerURL: cfg.AlertManagerURL, + LokiURL: cfg.LokiURL, + OpencostURL: opencostURL, + LogsProvider: logsProvider, + LogsProviderURL: logsURL, + LogsProviderStatus: logsOK, + LogProviderConfig: logCfg, + NodeAgentCount: queryNodeAgentCount(probeCtx, promClient, logger), + PrometheusRetentionTime: telemetry.PrometheusRetention(probeCtx, promClient, logger), + PrometheusAdditionalLabels: promExtraLabels, + TraceTable: traceTable, + JaegerEnabled: jaegerEnabled, + JaegerQueryURL: jaegerQueryURL, + ChronosphereTracesEnabled: chronosphereEnabled, + ChronosphereTracesURL: chronosphereURL, + ClickHouseStatus: clickhouseStatus, + AgentURL: agentURL, + GrafanaEnabled: grafanaURL != "" && httpProbe(probeCtx, probeClient, grafanaURL+"/api/health"), + AutoScalerEnabled: as.Enabled, + AutoScalerType: as.Type, + AutoScalerVersion: as.Version, + AutoScalerNamespace: as.Namespace, + } + }, + LightActions: func() []string { + set := validator.LightActionsSet() + out := make([]string, 0, len(set)) + for k := range set { + out = append(out, k) + } + return out + }, + } + g.Go(func() error { + logger.Info("starting telemetry poster", "endpoint", cfg.BackendEndpoint, "period", ts.Period) + return ts.Run(gctx) + }) + } + + // Task poller: drains agent_task queue (recommendation jobs — krr_scan, + // popeye_scan, image_scanner, certificate_scanner, trivy_cis_scan, + // kube_bench_scan, k8s_version_upgrade, helm_chart_upgrade, …). + // api-server inserts rows into agent_task with status=TODO; we GET + // /v1/k8s/tasks, dispatch through the trusted handler path, and POST the + // result back. Without this loop no recommendations reach the UI for + // the tenant. Period defaults to 120s (matches TASK_RUNNER_WINDOW). + if cfg.BackendEndpoint != "" { + ts := &tasks.Service{ + Endpoint: cfg.BackendEndpoint, + AuthSecret: cfg.AuthSecretKey, + Period: tasks.ParseTaskWindow(os.Getenv("TASK_RUNNER_WINDOW")), + Logger: logger, + Dispatch: disp, + } + g.Go(func() error { + logger.Info("starting task poller", "endpoint", cfg.BackendEndpoint, "period", ts.Period) + return ts.Run(gctx) + }) + } + + // Discovery: K8s informer-driven resource sync. Reuses typedKube built above. + if cfg.DiscoveryEnabled { + discoverySink := discovery.NewSink(cfg.BackendEndpoint, cfg.AuthSecretKey, cfg.AccountID, cfg.ClusterName, logger) + discSvc := discovery.NewService(typedKube, discoverySink, cfg.DiscoveryResync, logger) + discSvc.RegisterAll() // Pod, Deployment, StatefulSet, DaemonSet, Node, Namespace + // TODO(phase-4): ReplicaSet, Job, CronJob, Helm releases — each requires + // a converter + shadow-diff before promotion. + g.Go(func() error { + logger.Info("starting discovery", "resync", cfg.DiscoveryResync) + if err := discSvc.Run(gctx); err != nil && !errors.Is(err, context.Canceled) { + return fmt.Errorf("discovery: %w", err) + } + return nil + }) + + // Alert-rules push: feeds the collector's `event_rules` table so the + // UI's eventrules + runbook-fire paths know about every alert in the + // cluster. Skipped when neither a Prom client nor a dynamic K8s client + // is available — both sources would be empty. + if promClient != nil || dynamicKube != nil { + var kubeForRules *kube.Client + if dynamicKube != nil { + kubeForRules = kube.NewClient(dynamicKube, typedKube) + } + ar := &discovery.AlertRulesCollector{ + Prom: promClient, + Kube: kubeForRules, + Sink: discoverySink, + Logger: logger, + } + g.Go(func() error { + logger.Info("starting alert_rules collector", "interval", cfg.AlertRulesInterval) + return ar.Run(gctx, cfg.AlertRulesInterval) + }) + } + } + + return g.Wait() +} + +// shellTerminalAdapter bridges pkg/dispatch's TerminalHandler interface to +// the pkg/podshell.Manager's typed Handle method. +type shellTerminalAdapter struct{ m *podshell.Manager } + +func (a *shellTerminalAdapter) Handle(ctx context.Context, r *dispatch.TerminalRequest) (any, int) { + return a.m.Handle(ctx, &podshell.Request{ + Action: r.Action, + SessionID: r.SessionID, + Name: r.Name, + Namespace: r.Namespace, + Command: r.Command, + RequestID: r.RequestID, + }) +} + +// grafanaAdapter bridges pkg/dispatch's GrafanaHandler interface to +// pkg/grafana.Proxy. +type grafanaAdapter struct{ p *grafana.Proxy } + +func (a *grafanaAdapter) HandleGrafana(ctx context.Context, r *dispatch.GrafanaRequest) any { + return a.p.HandleGrafana(ctx, &grafana.Request{ + Method: r.Method, + URL: r.URL, + ContentLength: r.ContentLength, + Body: r.Body, + Header: r.Header, + }) +} + +func (a *grafanaAdapter) HandleAPI(ctx context.Context, baseURL string, r *dispatch.GrafanaRequest) any { + return a.p.HandleAPI(ctx, baseURL, &grafana.Request{ + Method: r.Method, + URL: r.URL, + ContentLength: r.ContentLength, + Body: r.Body, + Header: r.Header, + }) +} + +func (a *grafanaAdapter) HandlePrometheus(ctx context.Context, r *dispatch.GrafanaRequest) any { + return a.p.HandlePrometheus(ctx, &grafana.Request{ + Method: r.Method, + URL: r.URL, + ContentLength: r.ContentLength, + Body: r.Body, + Header: r.Header, + }) +} + +// queryNodeAgentCount +// (lines 246-264). Counts pods that match the upstream nudgebee node-agent +// job regex; the daemonset reports `up{job=~"...nudgebee(-.*)?-node-agent"}` +// per-pod, so len(result) is the count. Returns 0 on any error so the UI +// shows Disconnected rather than panicking the telemetry tick. +// +// Note: the legacy query embeds `__CLUSTER__` for multi-cluster Prom setups; +// __CLUSTER__ is replaced upstream by the relay before queries reach the +// agent. Our local probe runs against the agent's own cluster so we drop +// the token entirely. +func queryNodeAgentCount(ctx context.Context, c *prometheus.Client, logger *slog.Logger) int { + if c == nil || c.BaseURL == "" { + return 0 + } + const q = `up{job=~"(.+/)?nudgebee(-.*)?-node-agent"}` + cctx, cancel := context.WithTimeout(ctx, 5*time.Second) + defer cancel() + raw, err := c.Query(cctx, q, "", "") + if err != nil { + logger.Debug("node-agent prom query failed", "err", err) + return 0 + } + var resp struct { + Status string `json:"status"` + Data struct { + Result []json.RawMessage `json:"result"` + } `json:"data"` + } + if err := json.Unmarshal(raw, &resp); err != nil || resp.Status != "success" { + return 0 + } + return len(resp.Data.Result) +} + +// probeLogsProvider +// (lines 204-242). Picks the first configured provider (ES → Signoz → Loki), +// probes its health endpoint, and returns the wire-shape fields the UI reads. +// +// We only do the cheap HTTP probe (no auth) — clients with creds use the +// configured provider's own client at action-handler time. Fail-closed: any +// non-2xx → status=false, URL stays in payload so the UI can show "URL +// configured but unhealthy". +func probeLogsProvider(ctx context.Context, cfg *config.Config) (provider, url string, ok bool, providerCfg map[string]any) { + httpClient := &http.Client{Timeout: 5 * time.Second} + switch { + case cfg.PinotURL != "": + ok = httpProbe(ctx, httpClient, cfg.PinotURL+"/health") + return "pinot", cfg.PinotURL, ok, map[string]any{} + case cfg.ElasticsearchURL != "": + // ES exposes a `_cluster/health` endpoint; we treat 200 as healthy. + ok = httpProbe(ctx, httpClient, cfg.ElasticsearchURL+"/_cluster/health") + providerCfg = map[string]any{} + if v := os.Getenv("ELASTICSEARCH_LOG_INDEX"); v != "" { + providerCfg["default_index"] = v + } + return "ES", cfg.ElasticsearchURL, ok, providerCfg + case cfg.SignozURL != "": + // Signoz health endpoint: /api/v1/health. + ok = httpProbe(ctx, httpClient, cfg.SignozURL+"/api/v1/health") + return "signoz", cfg.SignozURL, ok, map[string]any{} + case cfg.LokiURL != "": + ok = httpProbe(ctx, httpClient, cfg.LokiURL+"/ready") + providerCfg = map[string]any{"url": cfg.LokiURL} + return "loki", cfg.LokiURL, ok, providerCfg + default: + return "", "", false, map[string]any{} + } +} + +// probeClickhouse mirrors the legacy _check_clickhouse → db.health() probe. +// Returns false (without probing) when CLICKHOUSE_HOST is unset — the Helm +// chart only wires the host when clickhouse/otel-collector is enabled, so +// an empty host means traces are off and there's nothing to reach. When +// the host is set, hit `/ping` on the HTTP port and reflect the result. +// TRACES_ENABLED=true|false acts as an explicit override (some users run +// an external clickhouse the agent can't reach). +func probeClickhouse(ctx context.Context, c *http.Client, host, port string) bool { + if v := os.Getenv("TRACES_ENABLED"); v == "true" { + return true + } else if v == "false" { + return false + } + if host == "" { + return false + } + return httpProbe(ctx, c, fmt.Sprintf("http://%s:%s/ping", host, port)) +} + +// httpProbe is a copy of telemetry.httpHealth — kept here to avoid exporting +// it. Returns true iff GET returns 2xx within the client's timeout. +// +// URL is sourced from operator-provided config (PROMETHEUS_URL, LOKI_URL, +// etc.), not request-derived — taint flow is operator → probe by design. +func httpProbe(ctx context.Context, c *http.Client, url string) bool { + req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil) //nolint:gosec // operator-provided URL + if err != nil { + return false + } + resp, err := c.Do(req) //nolint:gosec // operator-provided URL + if err != nil { + return false + } + defer func() { _ = resp.Body.Close() }() + return resp.StatusCode >= 200 && resp.StatusCode < 300 +} + +// parseTelemetryPeriod reads CLUSTER_STATUS_PERIOD_SEC (default 60s). +// We parse as integer seconds rather than a Go Duration so the chart's +// existing env can be reused unchanged. +func parseTelemetryPeriod() time.Duration { + s := os.Getenv("CLUSTER_STATUS_PERIOD_SEC") + if s == "" { + return 60 * time.Second + } + n, err := strconv.Atoi(s) + if err != nil || n <= 0 { + return 60 * time.Second + } + return time.Duration(n) * time.Second +} + +// parseLabelMap decodes the comma-separated `key=value` syntax used by +// PROMETHEUS_ADDITIONAL_LABELS into a map. Empty input → nil so the JSON +// payload omits the field rather than emitting `{}`. +func parseLabelMap(s string) map[string]string { + if s == "" { + return nil + } + out := map[string]string{} + for _, pair := range strings.Split(s, ",") { + k, v, ok := strings.Cut(strings.TrimSpace(pair), "=") + if !ok { + continue + } + k = strings.TrimSpace(k) + v = strings.TrimSpace(v) + if k != "" && v != "" { + out[k] = v + } + } + if len(out) == 0 { + return nil + } + return out +} + +func handlePing(_ map[string]any) (any, error) { + return map[string]any{"pong": true, "ts": time.Now().UTC().Format(time.RFC3339Nano)}, nil +} + +func handleEcho(params map[string]any) (any, error) { + return params, nil +} + +func handleHealth(_ map[string]any) (any, error) { + return map[string]any{ + "healthy": true, + "version": version.Version, + "commit": version.Commit, + "build_time": version.BuildTime, + "go": runtime.Version(), + "goroutines": runtime.NumGoroutine(), + }, nil +} diff --git a/runner/docs/actions.md b/runner/docs/actions.md new file mode 100644 index 0000000..9004b56 --- /dev/null +++ b/runner/docs/actions.md @@ -0,0 +1,242 @@ +# Action reference + +The agent exposes a set of actions over the relay WS. Each action takes a JSON `action_params` map (forwarded as-is from the backend) and returns JSON `data` in the response envelope. + +## Auth class + +| Symbol | Meaning | +|---|---| +| 🔓 light | Light-action allowlist; no signature required (relay is the perimeter) | +| ✍️ HMAC | Requires HMAC signature OR RSA partial-keys | +| 🔐 RSA | Mutating action; RSA partial-keys strongly recommended | + +## Group A — Observability proxies + +Thin HTTP forwarders. The agent does NOT parse responses — it returns raw JSON to the caller, who composes. + +### Prometheus 🔓 +Configured via `PROMETHEUS_URL` + optional `PROMETHEUS_HEADERS`. + +| Action | Endpoint | Required params | Optional | +|---|---|---|---| +| `prometheus_query` | `/api/v1/query` | `query` | `time`, `timeout` | +| `prometheus_query_range` | `/api/v1/query_range` | `query`, `start`, `end`, `step` | `timeout` | +| `prometheus_labels` | `/api/v1/labels` | — | `start`, `end`, `match[]` | +| `prometheus_label_values` | `/api/v1/label/{name}/values` | `label` | `start`, `end`, `match[]` | +| `prometheus_series` | `/api/v1/series` | `match[]` | `start`, `end` | +| `prometheus_alerts` | `/api/v1/alerts` | — | — | + +### Loki 🔓 +Configured via `LOKI_URL` + optional `LOKI_EXTRA_HEADER`. + +| Action | Endpoint | Required params | Optional | +|---|---|---|---| +| `loki_query` | `/loki/api/v1/query` | `query` | `time`, `limit` | +| `loki_query_range` | `/loki/api/v1/query_range` | `query` | `start`, `end`, `step`, `direction`, `limit` | +| `loki_labels` | `/loki/api/v1/labels` | — | `start`, `end`, `query` | +| `loki_label_values` | `/loki/api/v1/label/{name}/values` | `label` | `start`, `end`, `query` | +| `loki_series` | `/loki/api/v1/series` | `match[]` | `start`, `end` | + +### Elasticsearch 🔓 +Configured via `ELASTICSEARCH_URL` + auth (one of `ELASTICSEARCH_USERNAME`+`ELASTICSEARCH_PASSWORD` or `ELASTICSEARCH_APIKEY`). + +| Action | Description | Params | +|---|---|---| +| `query_es` | DSL or PPL query | `index`, `query_type`=`dsl`\|`ppl`, `query` | +| `query_es_indices` | List of indices via `_cat/indices` | — | +| `query_es_index_field` | Mapping for one index | `index` | +| `query_es_field_index_values` | Distinct values for one field (terms agg) | `index`, `field_name`, `limit` | + +### Signoz 🔓 +`SIGNOZ_URL` + `SIGNOZ_API_KEY`. All forward `action_params` as the request body. + +| Action | Endpoint | +|---|---| +| `signoz_query_range` | `/api/v3/query_range` | +| `signoz_label_suggest` | `/api/v3/autocomplete/attribute_keys` | +| `signoz_value_suggest` | `/api/v3/autocomplete/attribute_values` | + +### Jaeger 🔓 +Configured via `JAEGER_URL`. + +| Action | Description | +|---|---| +| `jaeger_query_traces` | Search traces (params → query string) | +| `jaeger_query_services` | List known services | +| `jaeger_query_trace_by_id` | Fetch one trace; param `trace_id` | +| `jaeger_query_operations` | List operations for a service; param `service` | +| `jaeger_query_metrics` | SPM metrics; param `metric_type` (`latencies` / `call_rates` / `error_rates` / `min_step`) | + +### Chronosphere 🔓 +Configured via `CHRONOSPHERE_URL` + `CHRONOSPHERE_API_KEY`. + +| Action | Description | +|---|---| +| `chronosphere_query_traces` | POST to `/api/unstable/data/traces/searches`; body = action_params | + +### Pinot 🔓 +Configured via `PINOT_URL` (controller port 9000) + optional `PINOT_AUTH_TOKEN` (Bearer) or `PINOT_USERNAME`/`PINOT_PASSWORD` (Basic-Auth). +Query path is `/sql` (controller); set `PINOT_URL` to the broker (`pinot-broker:8099`) and it will use `/query/sql` there — or keep it at the controller. + +| Action | Description | Required params | Optional | +|---|---|---|---| +| `pinot_query` | Execute a SQL query; returns raw Pinot `resultTable` JSON | `sql` | — | +| `pinot_tables` | List all tables | — | — | +| `pinot_schema` | Column schema for a table | `table` | — | + +**Live table**: `k8s_logs` — columns `namespace`, `pod`, `container`, `log`, `ingest_hour` (HOURS epoch), `stream`, `node`. + +### GCP (GKE) 🔓 +`GCP_ENABLED=true`. Auth via Workload Identity (in-cluster) or `GOOGLE_APPLICATION_CREDENTIALS`. Default project from `GCP_PROJECT_ID`, overridable per call. + +| Action | Description | Params | +|---|---|---| +| `gke_logs` | Cloud Logging entries for a GKE node pool | `project_id`?, `zone`, `limit` | +| `gke_traces` | Arbitrary BigQuery SQL | `project_id`?, `query` | + +### HTTP proxy 🔓 +Generic named-target HTTP forwarder for Grafana and arbitrary upstream APIs. Targets configured via `HTTP_PROXY_TARGETS` env (`name=url;name=url`). + +| Action | Description | +|---|---| +| `http_proxy_request` | Forward to named target. Params: `target`, `method`, `path`, `headers`, `query`, `body` | + +Use `target: "*"` only if the operator opts into wildcard mode (ON only when `*=...` is in the targets map). Otherwise, only configured names resolve. + +## Group B — Kube reads 🔓 + +| Action | Description | Params | +|---|---|---| +| `get_resource` | Get one resource (or list of types) via dynamic client | `group`, `version`, `resource_type` (comma-separated allowed), `namespace`?, `name`?, `all_namespaces`? | +| `get_resource_yaml` | Same, returned as YAML | (same) | +| `list_resource_names` | Just names + namespaces | (same as get_resource) | +| `kubectl_command_executor` | Run kubectl with read verbs only | `command` (full kubectl line) | + +`kubectl_command_executor` enforces a **read-only verb allowlist**: `get`, `describe`, `logs`, `top`, `explain`, `api-resources`, `api-versions`, `version`, `cluster-info`, `config`, `auth`. Mutating verbs (`apply`, `delete`, `patch`, etc.) are rejected — they go through Group D actions instead, which require RSA partial-keys. + +## Group C — Pod-exec 🔐 + +Both run via SPDY exec (no kubectl binary required). Security: arbitrary shell in customer pods; per-call audit log strongly recommended. + +| Action | Description | Params | +|---|---|---| +| `pod_bash_enricher` | Run `bash -c ""` in container | `namespace`, `pod`, `container`?, `command` | +| `pod_script_run_enricher` | Pipe a script body into bash via stdin | `namespace`, `pod`, `container`?, `script`, `interpreter`? (`bash`/`python`/`python3`) | + +## Group D — Mutations 🔐 + +K8s + AlertManager + alert-rule mutations. ALL of these MUST be served behind RSA partial-keys auth in production. + +### K8s mutations + +| Action | Description | Params | +|---|---|---| +| `delete_pod` | Delete one pod | `namespace`, `name`, `grace_period_seconds`? | +| `delete_job` | Delete a Job (background propagation) | `namespace`, `name` | +| `cordon` | Mark node unschedulable | `node` | +| `uncordon` | Clear unschedulable flag | `node` | +| `rollout_restart` | Trigger rolling restart (annotation patch) | `kind` (Deployment/StatefulSet/DaemonSet), `namespace`, `name` | +| `drain` | Cordon + evict eligible pods + wait for termination | `node`, `ignore_daemonsets`?=true, `delete_emptydir_data`?=false, `force`?=false, `disable_eviction`?=false, `timeout_seconds`?=300, `grace_period_seconds`? | + +### AlertManager silences (require `ALERTMANAGER_URL`) + +| Action | Description | +|---|---| +| `get_silences` | List active silences; optional `filters: ["alertname=X", ...]` | +| `add_silence` | Create silence; body forwarded to AlertManager | +| `delete_silence` | Cancel by `id` | + +### Prometheus alert-rule CRUD (require dynamic client) + +PrometheusRule CRDs (`monitoring.coreos.com/v1`). + +| Action | Description | +|---|---| +| `create_or_replace_alert_rule` | Apply a PrometheusRule manifest (create or update) | +| `delete_alert_rule` | Delete by `namespace` + `name` | + +### Loki rule CRUD (require `LOKI_RULES_URL`) + +Loki ruler API (`/loki/api/v1/rules/{namespace}[/{group}]`). + +| Action | Description | +|---|---| +| `create_loki_alert_rule` | POST YAML body for a namespace | +| `update_loki_alert_rule` | Same (Loki rules API is upsert) | +| `delete_loki_alert_rule` | Delete by `namespace` + `group` | + +## Group E — HTTP proxy + +Covered above under [Observability proxies > HTTP proxy](#http-proxy). + +## Group F — Scanners 🔐 + +Each schedules a Kubernetes Job, watches it to completion, returns the raw stdout/stderr to the caller. **The agent does NOT parse scanner output** — the existing collector parsers (`event_handler.handle_image_scan`, etc.) handle that. + +Versions are pinned in [pkg/scanners/scanners.go](../pkg/scanners/scanners.go); bump with care. + +| Action | Tool | +|---|---| +| `image_scanner` | Trivy image scan | +| `trivy_cis_scan` | Trivy K8s CIS Benchmark | +| `popeye_scan` | Popeye linter | +| `krr_scan` | KRR rightsizing | +| `kube_bench_scan` | kube-bench CIS (HostPID + privileged) | +| `certificate_scanner` | x509 cert scanner | + +Image references are pinned in [pkg/scanners/scanners.go](../pkg/scanners/scanners.go). + +Per-action params: +- `image_scanner` → `image` +- Others → no required params + +Configured via `SCANNERS_ENABLED=true`, `SCANNER_NAMESPACE`, `SCANNER_SERVICE_ACCOUNT`. + +## Group G — Service map 🔓 + +Builds a topology of applications and their connections from in-cluster Prometheus metrics emitted by the [Coroot eBPF node agent](https://github.com/coroot/coroot-node-agent) (shipped as a DaemonSet alongside this agent). + +| Action | Description | +|---|---| +| `service_map` | Cluster-wide topology | +| `service_map_enricher` | Same, scoped to a workload (params: `workload_name`, `workload_namespace`) | +| `traces_dependency_map` | Alias used by some backend callers | + +Required params (all optional): `r_start_time`, `r_end_time` (RFC3339), `duration` (minutes; default 1440 = 24h), `workload_filter: {workload_name, workload_namespace}` (also accepted nested). + +Returns `[]Application` — `Id`, `Category`, `Labels`, `Status`, `Upstreams`, `Downstreams`, `Instances`, `Type`, `OOMKills`, `Restarts`, `CPUThrottlingTime`, `IsHealthy`, `HealthReason`, etc. + +> **MVP fidelity note:** the implementation covers the orchestration + query catalog + core graph build; per-protocol classification across upstreams, NaN handling in throttle/restart sums, and application-category classification are simplified. + +## Group H — Discovery (background, not WS actions) + +Watches K8s resources and POSTs to `/v1/k8s/discovery/{type}`. Configured via `DISCOVERY_ENABLED=true`, `DISCOVERY_RESYNC` (default 30m). + +Resource types covered: + +- Pod, Deployment, StatefulSet, DaemonSet, ReplicaSet, Job, CronJob, Node, Namespace, HelmRelease (Helm v3 secrets via `owner=helm` label) + +ArgoCD Rollouts + OpenShift DeploymentConfig — behind feature flags, not yet wired into `RegisterAll()`. + +## Control plane 🔓 + +| Action | Description | +|---|---| +| `ping` | Returns `{pong: true, ts}` | +| `echo` | Returns the params back | +| `health` | Returns version, build time, Go version, goroutine count | +| `refresh_playbook` | Hot-reload light-action allowlist from `/v1/agent/config`. Returns `{refreshed: bool, action_count, backend_count, static_count}` | + +`refresh_playbook` is how new read-only actions roll out without a customer Helm upgrade — backend pushes the new name to its `/v1/agent/config` response, then calls `refresh_playbook` to make the agent pick it up. + +## Backend HTTP endpoints (consumed by agent) + +These are server-side endpoints the agent calls (not actions the agent serves): + +| Endpoint | Method | Used by | +|---|---|---| +| `/v1/k8s/discovery/{type}` | POST | Discovery sink — full snapshots + deltas | +| `/v1/alerts/intake` | POST | AlertManager forwarder | +| `/v1/k8s/runbook/action/output` | POST | Scanner Job output uploader | +| `/v1/agent/config` | GET | refresh_playbook hot-reload source | +| `/v1/k8s/tasks` | GET | Task poller (placeholder; not yet implemented) | diff --git a/runner/docs/architecture.md b/runner/docs/architecture.md new file mode 100644 index 0000000..2a398eb --- /dev/null +++ b/runner/docs/architecture.md @@ -0,0 +1,195 @@ +# Architecture + +This document describes the agent's runtime model, the wire protocol it speaks to the relay, and the auth scheme. For a quick visual, see the diagram in [the README](../README.md#architecture-at-a-glance). + +## Design principle + +The agent does only what physically requires in-cluster execution: + +1. **K8s API calls** that need the in-cluster ServiceAccount token. +2. **Network reads** of services (Prometheus, Loki, Elasticsearch, AlertManager, OpenCost) that are only reachable from inside the cluster. +3. **Privileged operations** like `kubectl exec`, draining nodes, scheduling K8s Jobs. +4. **AlertManager webhook reception** — the URL has to live somewhere AlertManager can reach. + +Everything else — playbook composition, trigger matching, finding building, enricher logic — lives on the Nudgebee backend. The agent is intentionally a thin gateway. + +The motivating constraint: agent bugs ship slowly (customer Helm upgrade), backend bugs ship in our deploy pipeline. Anything we put on the agent should be stable; anything that's likely to change goes server-side. + +## Process model + +One binary, one Deployment, one replica per cluster (default). Three concurrent subsystems share the process: + +``` + ┌────────────────────────────────────────────┐ + │ cmd/agent (main) │ + ├────────────────────────────────────────────┤ + │ │ + │ ┌──────────────────┐ │ + │ │ pkg/relay (WS) │ │ + │ │ reconnect │ ──┐ │ + │ │ greeting │ │ │ + │ └────────┬─────────┘ │ │ + │ │ │ │ + │ ┌────────▼─────────┐ │ │ + │ │ pkg/dispatch │ │ errgroup │ + │ │ - auth check │ │ with shared │ + │ │ - normal pool │ │ ctx │ + │ │ - high-priority │ │ │ + │ │ - 180s deadline │ │ │ + │ └────────┬─────────┘ │ │ + │ │ │ │ + │ ▼ │ │ + │ ┌──────────────────┐ │ │ + │ │ action handlers │ │ │ + │ └──────────────────┘ │ │ + │ │ │ + │ ┌──────────────────┐ │ │ + │ │ pkg/discovery │ ──┤ │ + │ │ - informers │ │ │ + │ │ - workqueue │ │ │ + │ │ - sink (POST) │ │ │ + │ └──────────────────┘ │ │ + │ │ │ + │ ┌──────────────────┐ │ │ + │ │ HTTP server │ ──┘ │ + │ │ /api/alerts │ │ + │ │ /metrics │ │ + │ │ /healthz │ │ + │ └──────────────────┘ │ + │ │ + └────────────────────────────────────────────┘ +``` + +Why one process? Singleton tasks (discovery cache, scheduled jobs) and stateless tasks (WS-pulled actions) coexist cleanly on goroutines when the deployment is 1-replica — no need to split into background and foreground pods. + +If a customer ever needs HA for WS throughput, scaling to N replicas with discovery + scheduled jobs gated by leader election is a future option. Not implemented in v1. + +## Wire protocol + +The agent connects to relay's `/register` over WebSocket with HTTP Basic-Auth carrying the tenant's auth secret. After upgrade, the agent sends a greeting: + +```json +{ + "action": "auth", + "version": "", + "agent_version": "", + "agent_commit": "", + "agent_build_time": "" +} +``` + +Inbound action requests (relay → agent): + +```json +{ + "body": { + "action_name": "kubectl_command_executor", + "timestamp": 1700000000, + "action_params": { "command": "get pods -A" }, + "account_id": "...", + "cluster_name": "..." + }, + "signature": "v0=", // OR + "partial_auth_a": "", // partial-keys mode + "partial_auth_b": "", + "request_id": "" +} +``` + +Outbound responses (agent → relay): + +```json +{ + "action": "response", + "request_id": "", + "status_code": 200, + "data": , + "output_type": "actions" +} +``` + +`request_id` empty in the inbound request means fire-and-forget — the agent runs the action but does NOT send a response. + +## Authentication + +Three modes; the dispatcher picks the first present per-request: + +### 1. HMAC signature +Used for most authenticated read paths. Relay HMACs the request body (after [byte-deterministic JSON canonicalisation](#canonical-json)) with the tenant's signing key: + +``` +v0= +``` + +The agent recomputes and constant-time-compares. Any drift = reject. + +### 2. RSA partial-keys +Used for mutating actions (Group D — drain/cordon/delete_*) and pod-exec. Two halves of the signing key are RSA-OAEP-MGF1-SHA256 encrypted (one by the relay, one by another trusted party); the agent decrypts both with its private key, XORs them, and the result must equal the signing key UUID's int form. Each half also carries `v0=sha256(canonical_json(body))` to prevent body tampering. + +The agent loads its private key at startup from `RSA_PRIVATE_KEY_PATH` (PEM, PKCS#1 or PKCS#8). + +### 3. Light-action allowlist +Read-only actions (Prometheus query, get_resource, etc.) skip signature checks; the relay is the perimeter. The allowlist is hot-swappable via `refresh_playbook` — see [refresh_playbook](#refresh_playbook). + +### Canonical JSON + +HMAC parity with the relay (a Python service) is brittle. The relay uses `body.json(exclude_none=True, sort_keys=True, separators=(",",":"))` (and a separate variant with default separators for the signature path). [pkg/canonjson](../pkg/canonjson/canonjson.go) reproduces both byte-for-byte: +- Sorted object keys (Unicode code-point order) +- Drop nil entries (`exclude_none`) +- ASCII-escape non-ASCII as `\uXXXX` (Python's `ensure_ascii=True` default; Go's encoder does NOT do this) +- HTML chars (`<`, `>`, `&`) NOT escaped (Python doesn't; Go's encoder DOES by default — explicitly disabled here) +- Whole-number floats keep `.0` suffix (`1.0` → `"1.0"`, not `"1"`) + +The package has 31 fixture tests for cross-language parity. Any drift = every authenticated request rejected, so this is critical. + +## Discovery + +`client-go`'s `SharedInformerFactory` watches K8s resources. Per-resource informers feed a `workqueue.RateLimitingInterface` that workers consume — the standard controller-runtime shape. + +Two delivery modes: + +1. **Full snapshot** — on startup (after `WaitForCacheSync`) and on every periodic resync (default 30 min). One POST per resource type, marked `full_load: true, is_first_batch: true, is_last_batch: true`. The collector treats this as authoritative. +2. **Incremental updates** — between resyncs. ADD/UPDATE/DELETE events from the informer get enqueued and emitted as small payloads with no batch metadata; the collector treats them as deltas (no cleanup). + +Resources covered: Pod, Deployment, StatefulSet, DaemonSet, ReplicaSet, Job, CronJob, Node, Namespace, HelmRelease (via `owner=helm` Secret label selector + base64+gzip+json blob decode). + +ArgoCD Rollouts and OpenShift `DeploymentConfig` are behind feature flags and not yet wired into `RegisterAll()`. + +## Action dispatch + +[pkg/dispatch](../pkg/dispatch/dispatch.go) holds: +- An action-name → handler `map` +- Two `golang.org/x/sync/semaphore` instances: + - **Normal pool** (default 10) — most actions + - **High-priority pool** (default 3) — actions with `action_params.high_priority = true` +- A 180-second hard deadline per action via `context.WithTimeout` + +The pool split (`WEBSOCKET_THREADPOOL_SIZE` + `WEBSOCKET_HIGH_PRIORITY_THREADPOOL_SIZE`) ensures a flood of slow actions can't starve fast probes. + +On receipt: +1. Parse envelope, look up action. +2. Run auth validator (rejects 401 if not allowed). +3. Acquire pool slot (rejects 503 on saturation). +4. Run handler under timeout. +5. Map outcome to response: handler error → 500, deadline exceeded → 504, success → 200. +6. If `request_id` is empty, skip the response (fire-and-forget). + +## Refresh + hot reload + +`refresh_playbook` GETs `/v1/agent/config`, expects `{"light_actions": [...]}`, and atomically swaps the validator's allowlist. Static actions (`ping`, `echo`, `health`, `refresh_playbook`) are always merged in — they can never be locked out. + +The validator's `LightActions` is held in an `atomic.Pointer[map[string]struct{}]` so concurrent `Validate` calls during a refresh see either old-or-new but never a torn read. Race-detector-clean. + +This means: adding a new read-only action to the agent doesn't require a customer Helm upgrade. Server pushes the new name to the allowlist endpoint, agent picks it up on the next refresh. + +## Observability of the agent itself + +`/metrics` exposes: +- `nudgebee_agent_actions_total{action,status}` — every action, labelled by name + outcome +- `nudgebee_agent_action_duration_seconds{action}` — histogram +- `nudgebee_agent_alerts_forwarded_total` / `_dropped_total` +- `nudgebee_agent_discovery_posts_total{type,full_load}` / `_errors_total{type}` +- `nudgebee_agent_relay_reconnects_total` / `_relay_connected` +- Standard Go runtime + process metrics (`go_*`, `process_*`) + +The chart at `nudgebee/k8s-agent` already deploys a `ServiceMonitor` pointing at the runner Service's port; nothing to change there during cutover. diff --git a/runner/docs/configuration.md b/runner/docs/configuration.md new file mode 100644 index 0000000..c07e343 --- /dev/null +++ b/runner/docs/configuration.md @@ -0,0 +1,131 @@ +# Configuration + +The agent reads its config from environment variables at startup. Variable names align with the existing `nudgebee/k8s-agent` Helm chart Secret so the chart works without major changes — just bump the `runner.image.tag` to a Go-agent image and add the new subsystem toggles below. + +## Required + +| Variable | Description | +|---|---| +| `WEBSOCKET_RELAY_ADDRESS` | Relay `/register` URL (e.g. `wss://relay.nudgebee.com/register`) | +| `NUDGEBEE_AUTH_SECRET_KEY` | Tenant auth secret. Sent as Basic-Auth on the WS handshake AND used as the HMAC signing key. | + +## Identification + +| Variable | Default | Description | +|---|---|---| +| `NUDGEBEE_ENDPOINT` | (none) | Backend HTTP base URL — alerts forward, refresh_playbook, discovery sink, scanner output upload all need this. | +| `ACCOUNT_ID` | (none) | Tenant account id; sent as `X-NB-Account-Id` on backend HTTP calls. | +| `CLUSTER_NAME` | (none) | Cluster name; sent as `X-NB-Cluster` and used in service-map cluster-filter expansion. | + +## HTTP server + +| Variable | Default | Description | +|---|---|---| +| `HTTP_LISTEN_ADDR` | `:5000` | Address for the agent's HTTP server (`/api/alerts`, `/metrics`, `/healthz`). | + +## Subsystem toggles + +The K8s subsystems (discovery, kube reads, pod-exec) **default on** — swapping the runner image is enough; no env additions needed. Operators opt out per-subsystem with `=false`. + +The subsystems that need extra config (mutate, scanners, GCP) **default off**: + +| Toggle | Default | Variable | Notes | +|---|---|---|---| +| Discovery | **on** | `DISCOVERY_ENABLED=false` to disable; `DISCOVERY_RESYNC=30m` | client-go informers; needs RBAC to list/watch core + apps + batch resources | +| Kube reads | **on** | `KUBE_ENABLED=false` to disable | `get_resource` etc. — needs broad cluster read RBAC | +| Pod-exec | **on** | `PODEXEC_ENABLED=false` to disable | RSA partial-keys auth strongly recommended for production | +| Mutations | off | `MUTATE_ENABLED=true` | RSA required; configures `dynamic` client for PrometheusRule CRUD | +| Scanners | off | `SCANNERS_ENABLED=true`, `SCANNER_NAMESPACE`, `SCANNER_SERVICE_ACCOUNT` | Needs RBAC to create Jobs in the namespace | +| GCP | off | `GCP_ENABLED=true`, `GCP_PROJECT_ID` | Workload Identity in-cluster | + +If a K8s subsystem is enabled but the agent fails to build a K8s client (no kubeconfig, not in-cluster), it logs a warning and disables the K8s subsystems automatically — the agent stays up serving observability proxies. + +## Observability targets + +| Variable | Required | Description | +|---|---|---| +| `PROMETHEUS_URL` | recommended | Enables `prometheus_*` actions and `service_map` | +| `PROMETHEUS_HEADERS` | optional | Comma-separated `Header: value` pairs (e.g. `X-Scope-OrgID: tenant-1`) | +| `LOKI_URL` | optional | Enables `loki_*` actions | +| `LOKI_EXTRA_HEADER` | optional | Same format as PROMETHEUS_HEADERS | +| `ELASTICSEARCH_URL` | optional | Enables `query_es*` actions | +| `ELASTICSEARCH_USERNAME` / `_PASSWORD` | optional | Basic auth (one of these or `_APIKEY` is needed if ES requires auth) | +| `ELASTICSEARCH_APIKEY` | optional | Alternative to user/pass | +| `SIGNOZ_URL` / `SIGNOZ_API_KEY` | optional | `signoz_*` actions; API key sent as `SIGNOZ-API-KEY` header | +| `JAEGER_URL` | optional | `jaeger_*` actions | +| `CHRONOSPHERE_URL` / `CHRONOSPHERE_API_KEY` | optional | `chronosphere_query_traces`; API key sent as `Authorization: Bearer` | +| `HTTP_PROXY_TARGETS` | optional | `name=url;name=url` for `http_proxy_request` named targets | + +## Mutation-specific config + +| Variable | Description | +|---|---| +| `ALERTMANAGER_URL` | Enables `get_silences`, `add_silence`, `delete_silence` | +| `ALERTMANAGER_HEADERS` | Comma-separated headers for AlertManager | +| `LOKI_RULES_URL` | Loki ruler component URL — enables `create_loki_alert_rule`, etc. | +| `LOKI_RULES_HEADERS` | Comma-separated headers for Loki rules API | + +## Authentication + +| Variable | Required | Description | +|---|---|---| +| `RSA_PRIVATE_KEY_PATH` | for mutations | PEM file path (PKCS#1 or PKCS#8). Without this, partial-keys auth is disabled and mutations are unreachable. | + +## RBAC + +The agent's ServiceAccount needs: + +```yaml +# Read primitives + discovery +- apiGroups: [""] + resources: [pods, services, namespaces, nodes, configmaps, events] + verbs: [get, list, watch] +- apiGroups: [apps] + resources: [deployments, statefulsets, daemonsets, replicasets] + verbs: [get, list, watch] +- apiGroups: [batch] + resources: [jobs, cronjobs] + verbs: [get, list, watch] +# Helm release detection (label-selected secrets) +- apiGroups: [""] + resources: [secrets] + verbs: [list, watch] + resourceNames: [] # filtered server-side by labels in informer + +# Pod-exec (only if PODEXEC_ENABLED) +- apiGroups: [""] + resources: [pods/exec] + verbs: [create] + +# Mutations (only if MUTATE_ENABLED) +- apiGroups: [""] + resources: [pods, nodes] + verbs: [delete, patch] +- apiGroups: [""] + resources: [pods/eviction] + verbs: [create] +- apiGroups: [apps] + resources: [deployments, statefulsets, daemonsets] + verbs: [patch] +- apiGroups: [monitoring.coreos.com] + resources: [prometheusrules] + verbs: [get, create, update, delete] + +# Scanners (only if SCANNERS_ENABLED) +- apiGroups: [batch] + resources: [jobs] + verbs: [create, get, list, watch, delete] +- apiGroups: [""] + resources: [pods, pods/log] + verbs: [get, list] +``` + +Scanners that need cluster-wide reads (`popeye_scan`, `krr_scan`, `trivy_cis_scan`) get them via the `SCANNER_SERVICE_ACCOUNT` — distinct from the agent's own SA so the agent can run with narrower permissions. + +## Deployment + +The agent ships in the `nudgebee/k8s-agent` Helm chart as the `runner` Deployment image (`ghcr.io/nudgebee/nudgebee-agent`). The chart's existing Secret provides every env var the agent needs (NUDGEBEE_ENDPOINT, NUDGEBEE_AUTH_SECRET_KEY, PROMETHEUS_URL, LOKI_URL, ELASTICSEARCH_URL, SIGNOZ_URL, etc.), and discovery / kube reads / pod-exec are default-on, so the agent serves its full surface with zero env additions. The Service name, port, and AlertManager webhook URL stay the same — no AlertManager config change needed. + +For mutating actions (drain/cordon/delete + alert-rule CRUD), set `MUTATE_ENABLED=true` and mount an RSA private key at `RSA_PRIVATE_KEY_PATH`. For scanners, set `SCANNERS_ENABLED=true` plus `SCANNER_SERVICE_ACCOUNT`. These are conscious opt-ins because they expand the agent's blast radius. + +See [docs/development.md](development.md) for local dev setup. diff --git a/runner/docs/development.md b/runner/docs/development.md new file mode 100644 index 0000000..8a83d5b --- /dev/null +++ b/runner/docs/development.md @@ -0,0 +1,136 @@ +# Development + +## Prerequisites + +- Go 1.26+ (matches `go.mod`) +- `make` +- For integration tests: + - Docker daemon (testcontainers spins up Prometheus + Loki containers) + - `setup-envtest` for K8s envtest binaries (`make setup-envtest` installs it) + +## Build & test + +```bash +make build # builds bin/nudgebee-agent +make fmt # gofmt -s -w +make lint # go vet (+ golangci-lint if installed) +make test # unit tests, no Docker, ~10s +make test-coverage # unit + coverage report → coverage.html +make validate # fmt + lint + test +``` + +### Integration tests + +```bash +make setup-envtest # one-time: installs setup-envtest + downloads K8s 1.32 binaries +make test-integration # unit + 6 integration suites against real infra (~1 min) +``` + +The integration suites: +- `pkg/discovery` — envtest with real kube-apiserver+etcd; creates Pods, asserts informer events +- `pkg/kube` — envtest; round-trips ConfigMaps via dynamic client +- `pkg/podexec` — envtest; SPDY exec dial against real apiserver (URL build verified) +- `pkg/scanners` — envtest; Job spec accepted, lifecycle observed via fake status updates +- `pkg/observability/prometheus` — testcontainers `prom/prometheus:v3.0.0`; all 6 endpoints +- `pkg/observability/loki` — testcontainers `grafana/loki:2.9.4`; query, query_range, labels + +## Running locally + +The agent expects a relay endpoint to connect to. Two options: + +**Option 1 — fake relay**: any WebSocket echo server. The agent will dial, send the greeting, and idle waiting for inbound action requests. SIGTERM exits cleanly. + +```bash +WEBSOCKET_RELAY_ADDRESS=ws://localhost:8080/register \ +NUDGEBEE_AUTH_SECRET_KEY=test-secret \ +HTTP_LISTEN_ADDR=127.0.0.1:5000 \ +make run +``` + +**Option 2 — local Nudgebee stack**: if you have access to the backend, bring up the relay-server + collector locally and point the agent at it. + +For testing without any backend, just hit `/healthz`: +```bash +curl http://localhost:5000/healthz # → ok +curl http://localhost:5000/metrics # Prometheus exposition +``` + +## Adding a new action + +1. Decide the package: read primitive → `pkg/observability/` or `pkg/kube`; mutation → `pkg/mutate`; scanner → `pkg/scanners`; new transport pattern → its own package. + +2. Implement the handler. The contract is: + ```go + type Handler func(ctx context.Context, params map[string]any) (any, error) + ``` + Return whatever JSON-marshalable shape the backend expects. Errors become 500 in the response envelope; `context.DeadlineExceeded` becomes 504. + +3. Register it via the package's `Handlers(...)` function. Wire that into [`cmd/agent/main.go`](../cmd/agent/main.go) under the matching subsystem toggle. + +4. Decide auth class: + - Read-only / safe → add to `lightActions` map in main; allowlist syncs via `refresh_playbook` + - Mutating / pod-exec / scanner → leave OUT of `lightActions`; the validator enforces HMAC or RSA partial-keys + +5. Tests: + - **Unit**: `httptest.Server` for HTTP-backed actions; `k8s.io/client-go/kubernetes/fake` for K8s-backed actions + - **Integration** (optional): `//go:build integration` tag; envtest for K8s, testcontainers-go for upstream services + +6. Update `docs/actions.md` with the new entry. + +## Adding a new discovery resource type + +1. Implement a converter in `pkg/discovery/converters.go`: + ```go + func convertX(obj any) (any, bool) { + x, ok := obj.(*) + if !ok { return nil, false } + return map[string]any{...}, true + } + ``` + The output map should match the wire shape the collector's discovery handler expects. + +2. Add a `RegisterX()` method in `pkg/discovery/service.go` that wires the right informer + workqueue with the converter. + +3. Add to `RegisterAll()` so the default-on path picks it up. + +4. Add a test in `pkg/discovery/converters_test.go` (synthetic input → asserted output map). + + +## Repo layout + +| Path | Purpose | +|---|---| +| `cmd/agent/main.go` | Wiring + signal handling; everything plugs in here | +| `pkg/relay/` | WS client (dial, greeting, reconnect, concurrent-safe writes) | +| `pkg/auth/` | HMAC + RSA-OAEP partial-keys + atomic light-action allowlist | +| `pkg/canonjson/` | Byte-deterministic JSON for HMAC parity with Python | +| `pkg/dispatch/` | Action registry, normal+high-priority pools, deadline | +| `pkg/discovery/` | Informers, workqueue, sink, per-resource converters, Helm release detection | +| `pkg/observability//` | One package per upstream (Prometheus, Loki, ES, Signoz, Jaeger, Chronosphere, GCP, http proxy) | +| `pkg/kube/` | Dynamic-client reads + kubectl shell-out (read-verb allowlist) | +| `pkg/podexec/` | SPDY exec wrapper | +| `pkg/mutate/` | K8s mutations + AlertManager silences + Prometheus + Loki rule CRUD | +| `pkg/scanners/` | Trivy / Popeye / KRR / kube-bench / cert Job orchestration | +| `pkg/servicemap/` | Coroot eBPF metric → topology builder | +| `pkg/alerts/` | AlertManager webhook receiver → backend forwarder | +| `pkg/control/` | refresh_playbook (hot-reload allowlist) | +| `pkg/metrics/` | Prometheus `/metrics` registry + dispatch hooks | +| `pkg/config/` | Env-driven config | +| `internal/k8sclient/` | InClusterConfig + kubeconfig fallback | +| `docs/` | This documentation | + +## Code conventions + +- **No comments stating WHAT** — well-named functions and types do that. Comments explain WHY (a non-obvious constraint, a workaround, a Python parity quirk). +- **Errors propagate**: don't swallow. Wrap with `fmt.Errorf("...: %w", err)` so callers can `errors.Is`/`errors.As`. +- **Context-aware**: every blocking call takes `context.Context`. Honour cancellation in loops; don't sleep without a select. +- **No global state** beyond `pkg/version` (linker-stamped) and `pkg/dispatch.actions` (process-scoped registry built at startup). +- **Tests live next to code**, build tags separate `_integration_test.go` files from unit tests. + +## Releasing + +1. Tag: `git tag vX.Y.Z` +2. Push: `git push --tags` +3. Build: `make build && make docker-build` (the `git describe` output ends up in the binary's `/healthz` and `/metrics`). +4. CI builds and pushes multi-arch images to `ghcr.io/nudgebee/nudgebee-agent` on every push to `main`. +5. Bump the chart at `nudgebee/k8s-agent` (`runner.image.tag`). diff --git a/runner/go.mod b/runner/go.mod new file mode 100644 index 0000000..c48d494 --- /dev/null +++ b/runner/go.mod @@ -0,0 +1,109 @@ +module github.com/nudgebee/nudgebee-agent + +go 1.26.0 + +require ( + github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 + github.com/google/uuid v1.6.0 + github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 + github.com/prometheus/client_golang v1.23.2 + github.com/testcontainers/testcontainers-go v0.42.0 + golang.org/x/oauth2 v0.36.0 + golang.org/x/sync v0.20.0 + k8s.io/api v0.36.1 + k8s.io/apimachinery v0.36.1 + k8s.io/client-go v0.36.1 + k8s.io/utils v0.0.0-20260210185600-b8788abfbbc2 + sigs.k8s.io/controller-runtime v0.24.1 + sigs.k8s.io/yaml v1.6.0 +) + +require ( + cloud.google.com/go/compute/metadata v0.3.0 // indirect + dario.cat/mergo v1.0.2 // indirect + github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect + github.com/Microsoft/go-winio v0.6.2 // indirect + github.com/beorn7/perks v1.0.1 // indirect + github.com/cenkalti/backoff/v4 v4.3.0 // indirect + github.com/cespare/xxhash/v2 v2.3.0 // indirect + github.com/containerd/errdefs v1.0.0 // indirect + github.com/containerd/errdefs/pkg v0.3.0 // indirect + github.com/containerd/log v0.1.0 // indirect + github.com/containerd/platforms v0.2.1 // indirect + github.com/cpuguy83/dockercfg v0.3.2 // indirect + github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect + github.com/distribution/reference v0.6.0 // indirect + github.com/docker/go-connections v0.6.0 // indirect + github.com/docker/go-units v0.5.0 // indirect + github.com/ebitengine/purego v0.10.0 // indirect + github.com/emicklei/go-restful/v3 v3.13.0 // indirect + github.com/evanphx/json-patch/v5 v5.9.11 // indirect + github.com/felixge/httpsnoop v1.0.4 // indirect + github.com/fxamacker/cbor/v2 v2.9.0 // indirect + github.com/go-logr/logr v1.4.3 // indirect + github.com/go-logr/stdr v1.2.2 // indirect + github.com/go-ole/go-ole v1.2.6 // indirect + github.com/go-openapi/jsonpointer v0.21.0 // indirect + github.com/go-openapi/jsonreference v0.20.2 // indirect + github.com/go-openapi/swag v0.23.0 // indirect + github.com/google/gnostic-models v0.7.0 // indirect + github.com/josharian/intern v1.0.0 // indirect + github.com/json-iterator/go v1.1.12 // indirect + github.com/klauspost/compress v1.18.5 // indirect + github.com/kylelemons/godebug v1.1.0 // indirect + github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect + github.com/magiconair/properties v1.8.10 // indirect + github.com/mailru/easyjson v0.7.7 // indirect + github.com/moby/docker-image-spec v1.3.1 // indirect + github.com/moby/go-archive v0.2.0 // indirect + github.com/moby/moby/api v1.54.1 // indirect + github.com/moby/moby/client v0.4.0 // indirect + github.com/moby/patternmatcher v0.6.1 // indirect + github.com/moby/spdystream v0.5.1 // indirect + github.com/moby/sys/sequential v0.6.0 // indirect + github.com/moby/sys/user v0.4.0 // indirect + github.com/moby/sys/userns v0.1.0 // indirect + github.com/moby/term v0.5.2 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect + github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect + github.com/opencontainers/go-digest v1.0.0 // indirect + github.com/opencontainers/image-spec v1.1.1 // indirect + github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect + github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect + github.com/prometheus/client_model v0.6.2 // indirect + github.com/prometheus/common v0.67.5 // indirect + github.com/prometheus/procfs v0.19.2 // indirect + github.com/shirou/gopsutil/v4 v4.26.3 // indirect + github.com/sirupsen/logrus v1.9.4 // indirect + github.com/spf13/pflag v1.0.9 // indirect + github.com/stretchr/testify v1.11.1 // indirect + github.com/tklauser/go-sysconf v0.3.16 // indirect + github.com/tklauser/numcpus v0.11.0 // indirect + github.com/x448/float16 v0.8.4 // indirect + github.com/yusufpapurcu/wmi v1.2.4 // indirect + go.opentelemetry.io/auto/sdk v1.2.1 // indirect + go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0 // indirect + go.opentelemetry.io/otel v1.41.0 // indirect + go.opentelemetry.io/otel/metric v1.41.0 // indirect + go.opentelemetry.io/otel/trace v1.41.0 // indirect + go.yaml.in/yaml/v2 v2.4.3 // indirect + go.yaml.in/yaml/v3 v3.0.4 // indirect + golang.org/x/crypto v0.48.0 // indirect + golang.org/x/net v0.49.0 // indirect + golang.org/x/sys v0.42.0 // indirect + golang.org/x/term v0.40.0 // indirect + golang.org/x/text v0.34.0 // indirect + golang.org/x/time v0.14.0 // indirect + google.golang.org/protobuf v1.36.12-0.20260120151049-f2248ac996af // indirect + gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect + gopkg.in/inf.v0 v0.9.1 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect + k8s.io/apiextensions-apiserver v0.36.0 // indirect + k8s.io/klog/v2 v2.140.0 // indirect + k8s.io/kube-openapi v0.0.0-20260317180543-43fb72c5454a // indirect + k8s.io/streaming v0.36.1 // indirect + sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect + sigs.k8s.io/randfill v1.0.0 // indirect + sigs.k8s.io/structured-merge-diff/v6 v6.3.2 // indirect +) diff --git a/runner/go.sum b/runner/go.sum new file mode 100644 index 0000000..a2901da --- /dev/null +++ b/runner/go.sum @@ -0,0 +1,279 @@ +cloud.google.com/go/compute/metadata v0.3.0 h1:Tz+eQXMEqDIKRsmY3cHTL6FVaynIjX2QxYC4trgAKZc= +cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k= +dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8= +dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA= +github.com/AdaLogics/go-fuzz-headers v0.0.0-20240806141605-e8a1dd7889d6 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Same pattern as every controller-runtime app. +package k8sclient + +import ( + "errors" + "fmt" + "os" + "path/filepath" + + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/rest" + "k8s.io/client-go/tools/clientcmd" +) + +// New returns a typed Kubernetes clientset and the rest.Config used to build it. +// kubeconfigPath overrides the env / default lookup; pass "" to use defaults. +func New(kubeconfigPath string) (kubernetes.Interface, *rest.Config, error) { + cfg, err := loadConfig(kubeconfigPath) + if err != nil { + return nil, nil, err + } + cs, err := kubernetes.NewForConfig(cfg) + if err != nil { + return nil, nil, fmt.Errorf("k8sclient: build clientset: %w", err) + } + return cs, cfg, nil +} + +func loadConfig(kubeconfigPath string) (*rest.Config, error) { + // In-cluster first. + if cfg, err := rest.InClusterConfig(); err == nil { + return cfg, nil + } else if !errors.Is(err, rest.ErrNotInCluster) { + return nil, fmt.Errorf("k8sclient: in-cluster config: %w", err) + } + + // Kubeconfig fallback. + if kubeconfigPath == "" { + kubeconfigPath = os.Getenv("KUBECONFIG") + } + if kubeconfigPath == "" { + home, err := os.UserHomeDir() + if err == nil { + kubeconfigPath = filepath.Join(home, ".kube", "config") + } + } + if kubeconfigPath == "" { + return nil, errors.New("k8sclient: no in-cluster config and no kubeconfig found") + } + + cfg, err := clientcmd.BuildConfigFromFlags("", kubeconfigPath) + if err != nil { + return nil, fmt.Errorf("k8sclient: load kubeconfig %s: %w", kubeconfigPath, err) + } + return cfg, nil +} diff --git a/runner/internal/k8sclient/k8sclient_test.go b/runner/internal/k8sclient/k8sclient_test.go new file mode 100644 index 0000000..ca88a65 --- /dev/null +++ b/runner/internal/k8sclient/k8sclient_test.go @@ -0,0 +1,85 @@ +package k8sclient + +import ( + "errors" + "os" + "path/filepath" + "testing" +) + +func TestNew_WithExplicitKubeconfig_FailsCleanlyOnMissingFile(t *testing.T) { + // Bypass in-cluster (no env vars set). loadConfig falls through to the + // kubeconfig path; with a non-existent file the typed error from clientcmd + // must propagate. + t.Setenv("KUBERNETES_SERVICE_HOST", "") + t.Setenv("KUBERNETES_SERVICE_PORT", "") + t.Setenv("KUBECONFIG", "") + + bogus := filepath.Join(t.TempDir(), "no-such-config") + _, _, err := New(bogus) + if err == nil { + t.Fatalf("New(%q) = nil error; want error", bogus) + } +} + +func TestNew_NoConfigFound_ReturnsError(t *testing.T) { + t.Setenv("KUBERNETES_SERVICE_HOST", "") + t.Setenv("KUBERNETES_SERVICE_PORT", "") + t.Setenv("KUBECONFIG", "") + t.Setenv("HOME", t.TempDir()) // ensure no ~/.kube/config + + _, _, err := New("") + if err == nil { + t.Fatal("expected error when no in-cluster config and no kubeconfig present") + } +} + +func TestLoadConfig_HonorsKubeconfigEnv(t *testing.T) { + t.Setenv("KUBERNETES_SERVICE_HOST", "") + t.Setenv("KUBERNETES_SERVICE_PORT", "") + + // Write a minimal valid kubeconfig pointing at a fake cluster. + dir := t.TempDir() + kc := filepath.Join(dir, "config") + const yaml = `apiVersion: v1 +kind: Config +clusters: +- cluster: + server: https://127.0.0.1:6443 + name: kind +contexts: +- context: + cluster: kind + user: kind + name: kind +current-context: kind +users: +- name: kind +` + if err := os.WriteFile(kc, []byte(yaml), 0o644); err != nil { + t.Fatal(err) + } + t.Setenv("KUBECONFIG", kc) + + cfg, err := loadConfig("") + if err != nil { + t.Fatalf("loadConfig: %v", err) + } + if cfg.Host != "https://127.0.0.1:6443" { + t.Errorf("Host = %q; want https://127.0.0.1:6443", cfg.Host) + } +} + +// Sanity: file-not-found must surface with a recognisable hint, not a panic. +func TestLoadConfig_NonExistentPath(t *testing.T) { + t.Setenv("KUBERNETES_SERVICE_HOST", "") + t.Setenv("KUBERNETES_SERVICE_PORT", "") + _, err := loadConfig(filepath.Join(t.TempDir(), "nope")) + if err == nil { + t.Fatal("expected error") + } + // Don't pin to a specific error type — clientcmd wraps; just ensure non-nil. + if errors.Is(err, nil) { + t.Fatal("nil error wrapped") + } +} diff --git a/runner/pkg/alerts/auth.go b/runner/pkg/alerts/auth.go new file mode 100644 index 0000000..df510b4 --- /dev/null +++ b/runner/pkg/alerts/auth.go @@ -0,0 +1,10 @@ +package alerts + +import "encoding/base64" + +// basicAuth produces the Authorization header value the backend collector +// expects: a bare base64 string with NO "Basic " prefix. Adding "Basic " +// causes a 401 from the collector's auth handler. +func basicAuth(secret string) string { + return base64.StdEncoding.EncodeToString([]byte(secret)) +} diff --git a/runner/pkg/alerts/finding.go b/runner/pkg/alerts/finding.go new file mode 100644 index 0000000..caa1a35 --- /dev/null +++ b/runner/pkg/alerts/finding.go @@ -0,0 +1,515 @@ +package alerts + +// Default-Finding builder. The Go agent forwards raw AlertManager +// webhooks and raw kubewatch K8s-event payloads to the collector's +// `POST /v1/k8s/events` endpoint, wrapping each one in a Finding +// envelope so the collector pipeline accepts it without any backend +// code change. +// +// This is **packaging, not enrichment**. We extract the bare minimum +// required by the collector consumer (subject_name / aggregation_key / +// fingerprint / etc.) and attach the raw payload as a `json` evidence +// block for UI visibility. +// +// Enum values mirrored byte-for-byte: +// +// FindingType: "issue", "configuration_change", "report", "health_check" +// FindingSource: "kubernetes_api_server", "prometheus", "nudgebee", ... +// Priority: "DEBUG" | "INFO" | "LOW" | "MEDIUM" | "HIGH" +// SubjectType: "pod", "deployment", "node", "job", "daemonset", "statefulset", ... + +import ( + "crypto/sha256" + "encoding/hex" + "encoding/json" + "errors" + "fmt" + "strings" + "time" + + "github.com/google/uuid" +) + +// Finding mirrors the collector's expected wire shape. All non-`omitempty` +// fields are accessed without `.get()` by the consumer — missing values +// cause a KeyError that drops the message before storage. +type Finding struct { + ID string `json:"id"` + Title string `json:"title"` + Description string `json:"description"` + Source string `json:"source"` + AggregationKey string `json:"aggregation_key"` + Failure bool `json:"failure"` + FindingType string `json:"finding_type"` + Category string `json:"category"` + Priority string `json:"priority"` + SubjectType string `json:"subject_type"` + SubjectName string `json:"subject_name"` + SubjectNamespace string `json:"subject_namespace"` + SubjectNode string `json:"subject_node"` + ServiceKey string `json:"service_key"` + Cluster string `json:"cluster"` + AccountID string `json:"account_id"` + VideoLinks []any `json:"video_links"` + StartsAt string `json:"starts_at"` + UpdatedAt string `json:"updated_at"` + Fingerprint string `json:"fingerprint,omitempty"` + SubjectOwner string `json:"subject_owner,omitempty"` + SubjectOwnerKind string `json:"subject_owner_kind,omitempty"` +} + +// Evidence is one outer envelope per enrichment block. One of these +// is emitted per `Enrichment`, with `data` being a JSON-stringified +// array of structured-data items. +type Evidence struct { + IssueID string `json:"issue_id"` + FileType string `json:"file_type"` + Data string `json:"data"` // JSON-stringified []structuredItem + AccountID string `json:"account_id"` +} + +// FindingEnvelope is the body POSTed to /v1/k8s/events. Tenant + +// cloud_account_id come from auth context and are added by the collector +// controller. +type FindingEnvelope struct { + Finding Finding `json:"finding"` + Evidence []Evidence `json:"evidence"` + Message string `json:"message"` +} + +// Builder holds per-agent constants so the per-event builders stay clean. +type Builder struct { + AccountID string // `account_id` — pinned to the agent's NUDGEBEE account UUID + Cluster string // `cluster_id` — same as the agent's CLUSTER_NAME env +} + +// FromMatchedTrigger wraps a kubewatch K8s-event payload into a Finding +// envelope when a trigger matcher fired. Differs from FromKubewatchEvent +// in two important ways: +// +// - aggregation_key, priority, finding_type come from the matched +// trigger spec (`report_crash_loop`, `pod_oom_killer_enricher`, etc.) +// instead of the generic `k8s_event__` default. +// - subject_owner / subject_owner_kind are populated from the matcher's +// owner-walk so multiple Pod restarts of the same Deployment dedupe +// to the workload, not to the per-restart Pod name. +// +// `match` carries the trigger result (Spec, Fingerprint, Owner, Subject*). +// `rawData` is the kubewatch inner `data` dict (operation, kind, obj, +// oldObj, …) — preserved verbatim as the evidence payload so the UI / +// LLM can inspect what triggered the Finding. +func (b *Builder) FromMatchedTrigger(matchSpec MatchedTrigger, rawData []byte) (*FindingEnvelope, error) { + if matchSpec.SubjectName == "" { + return nil, errors.New("triggers: match has no subject_name") + } + now := time.Now().UTC() + startsAt := utcDBStr(now) + id := uuid.NewString() + serviceKey := matchSpec.SubjectNamespace + "/" + matchSpec.SubjectName + + // Owner-aware subject — the UI groups findings by service_key, which + // is namespace/owner-or-pod. Use the resolved owner when the matcher + // walked one (most Pod-based matchers do); fall back to the raw + // subject otherwise (warning_event, node_not_ready). + subjectOwner, subjectOwnerKind := matchSpec.Owner.Name, matchSpec.Owner.Kind + if subjectOwner != "" { + serviceKey = matchSpec.SubjectNamespace + "/" + subjectOwner + } + + finding := Finding{ + ID: id, + Title: matchSpec.Title(), + Description: matchSpec.Description(), + Source: "kubernetes_api_server", + AggregationKey: matchSpec.AggregationKey, + Failure: matchSpec.FindingType == "issue", + FindingType: matchSpec.FindingType, + Category: "", + Priority: matchSpec.Priority, + SubjectType: matchSpec.SubjectKind, + SubjectName: matchSpec.SubjectName, + SubjectNamespace: matchSpec.SubjectNamespace, + SubjectNode: matchSpec.SubjectNode, + ServiceKey: serviceKey, + Cluster: b.Cluster, + AccountID: b.AccountID, + VideoLinks: []any{}, + StartsAt: startsAt, + UpdatedAt: startsAt, + Fingerprint: matchSpec.Fingerprint, + SubjectOwner: subjectOwner, + SubjectOwnerKind: subjectOwnerKind, + } + evidence := []Evidence{newJSONEvidence(id, b.AccountID, rawData, matchSpec.ExtraBlocks)} + return &FindingEnvelope{ + Finding: finding, + Evidence: evidence, + Message: finding.Title, + }, nil +} + +// MatchedTrigger is the subset of pkg/triggers.Match that the Builder +// needs to construct a Finding. Defining it locally (instead of importing +// pkg/triggers directly) keeps pkg/alerts free of an import cycle and +// preserves the layering: triggers → alerts → finding builder, never +// the other way. +type MatchedTrigger struct { + AggregationKey string + Priority string + FindingType string + Fingerprint string + Owner OwnerRef + SubjectName string + SubjectNamespace string + SubjectKind string + SubjectNode string + // MatcherName is for log + metric labels; not emitted on the Finding. + MatcherName string + + // ExtraBlocks are additional structured-data evidence blocks + // produced by the matcher (currently only `babysitter_*` populates + // this with a `markdown` block carrying the spec diff). Each block + // is the open map shape used by the legacy evidence emitter. + ExtraBlocks []map[string]any +} + +// OwnerRef mirrors triggers.OwnerRef. Same reasoning re. import cycle. +type OwnerRef struct { + Name string + Kind string +} + +// Title produces the Finding title from the matcher + subject. Format +// mirrors the legacy Finding builders' output for each aggregation_key +// so the UI's existing per-aggregation_key formatting stays unchanged. +func (m MatchedTrigger) Title() string { + switch m.AggregationKey { + case "report_crash_loop": + return fmt.Sprintf("Pod %s/%s is in CrashLoopBackOff", m.SubjectNamespace, m.SubjectName) + case "pod_oom_killer_enricher": + return fmt.Sprintf("Pod %s/%s was OOMKilled", m.SubjectNamespace, m.SubjectName) + case "image_pull_backoff_reporter": + return fmt.Sprintf("Pod %s/%s has ImagePullBackOff", m.SubjectNamespace, m.SubjectName) + case "job_failure": + return fmt.Sprintf("Job %s/%s failed", m.SubjectNamespace, m.SubjectName) + case "node_not_ready": + return fmt.Sprintf("Node %s is NotReady", m.SubjectName) + case "Kubernetes Warning Event": + return fmt.Sprintf("Warning Event on %s %s/%s", m.SubjectKind, m.SubjectNamespace, m.SubjectName) + default: + return fmt.Sprintf("%s on %s/%s", m.AggregationKey, m.SubjectNamespace, m.SubjectName) + } +} + +// Description is a 1-line context blurb. Keeps Finding rows informative +// even before stage 2.2 ships the enricher chain that adds rich evidence. +func (m MatchedTrigger) Description() string { + if m.MatcherName == "" { + return "Trigger matched on agent (raw event in evidence)" + } + return "Trigger '" + m.MatcherName + "' matched on agent (raw event in evidence)" +} + +// FromAlertManager wraps a raw AlertManager webhook into a Finding +// envelope. The webhook may carry many alerts under `alerts[]`; we emit +// one envelope per alert so the existing UI dedupes / aggregates per +// alertname the same way it does today. +// +// Returns (envelopes, dropped_count). dropped_count is the number of +// alerts in the batch that lacked a resolvable subject_name; those are +// silently skipped. +func (b *Builder) FromAlertManager(rawWebhook []byte) ([]FindingEnvelope, int, error) { + var webhook struct { + Alerts []alertManagerAlert `json:"alerts"` + } + if err := json.Unmarshal(rawWebhook, &webhook); err != nil { + return nil, 0, fmt.Errorf("alertmanager: parse webhook: %w", err) + } + out := make([]FindingEnvelope, 0, len(webhook.Alerts)) + dropped := 0 + for _, a := range webhook.Alerts { + env, err := b.alertToFinding(a) + if err != nil { + dropped++ + continue + } + out = append(out, env) + } + return out, dropped, nil +} + +// FromKubewatchEvent wraps a single kubewatch event payload (the inner +// `data` dict from `{type: ..., data: {operation, kind, obj, ...}}` — +// the outer wrapper has already been stripped by the caller). +// +// Returns nil + error when the payload doesn't carry a usable +// metadata.name; consumer would drop it. +func (b *Builder) FromKubewatchEvent(rawData []byte) (*FindingEnvelope, error) { + var k struct { + Operation string `json:"operation"` + Kind string `json:"kind"` + Obj map[string]any `json:"obj"` + } + if err := json.Unmarshal(rawData, &k); err != nil { + return nil, fmt.Errorf("kubewatch: parse data: %w", err) + } + meta, _ := k.Obj["metadata"].(map[string]any) + subjectName, _ := meta["name"].(string) + if subjectName == "" { + return nil, errors.New("kubewatch: payload missing metadata.name") + } + subjectNamespace, _ := meta["namespace"].(string) + + subjectNode := "" + if spec, ok := k.Obj["spec"].(map[string]any); ok { + subjectNode, _ = spec["nodeName"].(string) + } + + subjectType := strings.ToLower(k.Kind) + if subjectType == "" { + subjectType = "pod" // safest default; kubewatch always sends Kind in practice + } + operation := strings.ToLower(k.Operation) + if operation == "" { + operation = "update" + } + aggregationKey := fmt.Sprintf("k8s_event_%s_%s", subjectType, operation) + now := time.Now().UTC() + startsAt := utcDBStr(now) + id := uuid.NewString() + serviceKey := subjectNamespace + "/" + subjectName + + rawJSON, err := json.Marshal(k.Obj) + if err != nil { + return nil, fmt.Errorf("kubewatch: marshal raw obj: %w", err) + } + + finding := Finding{ + ID: id, + Title: fmt.Sprintf("%s %s/%s %s", k.Kind, subjectNamespace, subjectName, operation), + Description: fmt.Sprintf("kubewatch %s event from agent", operation), + Source: "kubernetes_api_server", + AggregationKey: aggregationKey, + Failure: false, + FindingType: "configuration_change", + Category: "", + Priority: "INFO", + SubjectType: subjectType, + SubjectName: subjectName, + SubjectNamespace: subjectNamespace, + SubjectNode: subjectNode, + ServiceKey: serviceKey, + Cluster: b.Cluster, + AccountID: b.AccountID, + VideoLinks: []any{}, + StartsAt: startsAt, + UpdatedAt: startsAt, + Fingerprint: fingerprint(aggregationKey, serviceKey, startsAt), + } + evidence := []Evidence{newJSONEvidence(id, b.AccountID, rawJSON, nil)} + return &FindingEnvelope{ + Finding: finding, + Evidence: evidence, + Message: finding.Title, + }, nil +} + +// alertToFinding converts one PrometheusAlert to a Finding envelope. +func (b *Builder) alertToFinding(a alertManagerAlert) (FindingEnvelope, error) { + subjectName, subjectType := alertSubject(a.Labels) + if subjectName == "" { + return FindingEnvelope{}, errors.New("alertmanager: no subject_name resolvable from labels") + } + subjectNamespace := pickLabel(a.Labels, "namespace", "exported_namespace") + subjectNode := pickLabel(a.Labels, "node", "instance") + alertname := pickLabel(a.Labels, "alertname") + if alertname == "" { + alertname = "UnnamedAlert" + } + startsAt := a.StartsAt + if startsAt == "" { + startsAt = utcDBStr(time.Now().UTC()) + } + serviceKey := subjectNamespace + "/" + subjectName + id := uuid.NewString() + + rawJSON, err := json.Marshal(a) + if err != nil { + return FindingEnvelope{}, fmt.Errorf("alertmanager: marshal alert: %w", err) + } + + finding := Finding{ + ID: id, + Title: firstNonEmpty(a.Annotations["summary"], a.Annotations["description"], alertname), + Description: a.Annotations["description"], + Source: "prometheus", + AggregationKey: alertname, + Failure: false, + FindingType: "issue", + Category: "", + Priority: severityToPriority(a.Labels["severity"]), + SubjectType: subjectType, + SubjectName: subjectName, + SubjectNamespace: subjectNamespace, + SubjectNode: subjectNode, + ServiceKey: serviceKey, + Cluster: b.Cluster, + AccountID: b.AccountID, + VideoLinks: []any{}, + StartsAt: startsAt, + UpdatedAt: startsAt, + Fingerprint: coalesce(a.Fingerprint, fingerprint(alertname, serviceKey, startsAt)), + } + evidence := []Evidence{newJSONEvidence(id, b.AccountID, rawJSON, nil)} + return FindingEnvelope{ + Finding: finding, + Evidence: evidence, + Message: finding.Title, + }, nil +} + +// alertManagerAlert mirrors PrometheusAlert. +type alertManagerAlert struct { + StartsAt string `json:"startsAt"` + EndsAt string `json:"endsAt"` + GeneratorURL string `json:"generatorURL"` + Fingerprint string `json:"fingerprint"` + Status string `json:"status"` + Labels map[string]string `json:"labels"` + Annotations map[string]string `json:"annotations"` +} + +// alertSubject picks the most specific kubernetes object name from the +// alert labels, returning (name, type). +// +// Order: workload-level labels first, then pod. A `pod` label is only +// unambiguously the subject when no workload-level label is present +// (typical of single-pod metrics like CrashLoopBackOff, OOMKilled). When +// the metric series carries both — as with kube-state-metrics exporters +// (labels.pod is the scraper, labels.deployment is the resource being +// measured) and aggregated-by-workload rules (`sum by (deployment) ...`) — +// the workload label is the subject and `pod` would mis-attribute the +// alert to the emitter. +func alertSubject(labels map[string]string) (string, string) { + for _, candidate := range []struct{ key, kind string }{ + {"deployment", "deployment"}, + {"statefulset", "statefulset"}, + {"daemonset", "daemonset"}, + {"job", "job"}, + {"hpa", "horizontalpodautoscaler"}, + {"persistentvolumeclaim", "persistentvolumeclaim"}, + {"workload", "deployment"}, // some alerts emit a generic workload label + {"node", "node"}, + {"pod", "pod"}, // last — only used when no workload-level label is present + } { + if v := labels[candidate.key]; v != "" { + return v, candidate.kind + } + } + if v := labels["kubernetes_kind"]; v != "" { + // kubernetes_kind tells us the type but not the name — the labels + // above are the only source of name, so this is reachable only if + // upstream forgot to also set the per-kind label. Fall through. + return "", strings.ToLower(v) + } + return "", "" +} + +// severityToPriority maps Prometheus alert `severity` labels to the +// FindingSeverity values the backend expects. +func severityToPriority(severity string) string { + switch strings.ToLower(severity) { + case "critical": + return "HIGH" + case "warning": + return "MEDIUM" + case "info", "": + return "INFO" + case "low": + return "LOW" + case "debug": + return "DEBUG" + default: + return "INFO" + } +} + +// newJSONEvidence wraps the raw payload as a single `json` block inside +// the `structured_data` envelope. The collector reads `data` as a +// JSON-stringified array of these blocks. +// +// `extras` holds matcher-supplied evidence blocks (e.g. babysitter's +// markdown diff) appended after the raw payload. Empty/nil extras leave +// the evidence shape identical to the pre-stage-2.1 single-block form, +// so existing UI parsers (KubernetesPVC.jsx walks blocks[0]) keep +// reading the raw JSON from index 0. +func newJSONEvidence(findingID, accountID string, raw json.RawMessage, extras []map[string]any) Evidence { + blocks := make([]map[string]any, 0, 1+len(extras)) + blocks = append(blocks, map[string]any{ + "type": "json", + "data": string(raw), + "additional_info": map[string]any{}, + }) + for _, extra := range extras { + if extra == nil { + continue + } + blocks = append(blocks, extra) + } + encoded, _ := json.Marshal(blocks) // []map[string]any never errors + return Evidence{ + IssueID: findingID, + FileType: "structured_data", + Data: string(encoded), + AccountID: accountID, + } +} + +// fingerprint stable-hashes the (aggregation_key, service_key, starts_at) +// tuple. The backend dedupes by fingerprint, so two alerts +// for the same workload at the same starts_at collapse to one Finding. +func fingerprint(aggregationKey, serviceKey, startsAt string) string { + h := sha256.Sum256([]byte(aggregationKey + ":" + serviceKey + ":" + startsAt)) + return hex.EncodeToString(h[:]) +} + +// utcDBStr produces an RFC3339 UTC timestamp (e.g. "2026-05-07T13:00:57Z"). +// The backend's `trigger_investigation` handler decodes `starts_at` / +// `ends_at` via mapstructure into `time.Time`, with a fallback that +// appends "Z" when the string has no timezone indicator. The legacy +// `datetime_to_db_str` emits a space-separated +// "%Y-%m-%dT%H:%M:%S.%f%z" that hits this path with a Postgres-format +// string ("2026-05-07 13:00:57"); the backend appends "Z" to +// "2026-05-07 13:00:57Z", then mapstructure rejects the space — +// every Finding produced that way fails the downstream +// trigger_investigation call (HTTPError 400). RFC3339 is the only +// format that round-trips cleanly through both the backend's +// HasTimezoneIndicator gate and its time.Time parser. +func utcDBStr(t time.Time) string { + return t.UTC().Format(time.RFC3339) +} + +func pickLabel(labels map[string]string, keys ...string) string { + for _, k := range keys { + if v := labels[k]; v != "" { + return v + } + } + return "" +} + +func firstNonEmpty(values ...string) string { + for _, v := range values { + if v != "" { + return v + } + } + return "" +} + +func coalesce(a, b string) string { + if a != "" { + return a + } + return b +} diff --git a/runner/pkg/alerts/finding_test.go b/runner/pkg/alerts/finding_test.go new file mode 100644 index 0000000..670cb4b --- /dev/null +++ b/runner/pkg/alerts/finding_test.go @@ -0,0 +1,224 @@ +package alerts + +import ( + "encoding/json" + "strings" + "testing" + "time" +) + +func TestBuilder_Alert_SubjectFallbackOrder(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + cases := []struct { + name string + labels map[string]string + subject string + stype string + }{ + // Workload-level labels win over pod when both are present. A + // `pod` label alongside a workload label is the signature of an + // exporter-emitted metric (kube-state-metrics, node-exporter, etc.) + // or an aggregated-by-workload rule — in both cases the workload + // is the subject and `pod` is the scraper / one instance. + {"deployment wins over scraper pod", map[string]string{"alertname": "KubeDeploymentReplicasMismatch", "pod": "victoria-kube-state-metrics-xxx", "deployment": "cert-manager-cainjector"}, "cert-manager-cainjector", "deployment"}, + {"statefulset wins over scraper pod", map[string]string{"alertname": "KubeStatefulSetReplicasMismatch", "pod": "ksm-xxx", "statefulset": "clickhouse"}, "clickhouse", "statefulset"}, + {"daemonset wins over scraper pod", map[string]string{"alertname": "X", "pod": "ksm-xxx", "daemonset": "fluent-bit"}, "fluent-bit", "daemonset"}, + // Pod is the subject when no workload label is present (typical + // of single-pod metrics: CrashLoopBackOff, OOMKilled). + {"pod used when no workload label", map[string]string{"alertname": "KubePodCrashLooping", "pod": "p1"}, "p1", "pod"}, + // Existing fallback chain still works. + {"deployment used when no pod", map[string]string{"alertname": "X", "deployment": "d1"}, "d1", "deployment"}, + {"daemonset", map[string]string{"alertname": "X", "daemonset": "ds"}, "ds", "daemonset"}, + {"node only", map[string]string{"alertname": "X", "node": "n1"}, "n1", "node"}, + {"hpa", map[string]string{"alertname": "X", "hpa": "h"}, "h", "horizontalpodautoscaler"}, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + webhook := map[string]any{"alerts": []map[string]any{{"labels": tc.labels}}} + raw, _ := json.Marshal(webhook) + out, _, err := b.FromAlertManager(raw) + if err != nil { + t.Fatal(err) + } + if len(out) != 1 { + t.Fatalf("got %d envelopes; want 1", len(out)) + } + if out[0].Finding.SubjectName != tc.subject { + t.Errorf("subject_name = %q; want %q", out[0].Finding.SubjectName, tc.subject) + } + if out[0].Finding.SubjectType != tc.stype { + t.Errorf("subject_type = %q; want %q", out[0].Finding.SubjectType, tc.stype) + } + }) + } +} + +func TestBuilder_Alert_DropsAlertsMissingSubject(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + // 3 alerts: first has pod, second has no subject label, third has node. + raw := []byte(`{"alerts":[ + {"labels":{"alertname":"A","pod":"p"}}, + {"labels":{"alertname":"B","severity":"critical"}}, + {"labels":{"alertname":"C","node":"n1"}} + ]}`) + out, dropped, err := b.FromAlertManager(raw) + if err != nil { + t.Fatal(err) + } + if len(out) != 2 { + t.Errorf("envelopes = %d; want 2 (middle alert has no subject)", len(out)) + } + if dropped != 1 { + t.Errorf("dropped = %d; want 1", dropped) + } +} + +func TestBuilder_Alert_PriorityFromSeverity(t *testing.T) { + cases := map[string]string{ + "critical": "HIGH", + "warning": "MEDIUM", + "info": "INFO", + "": "INFO", + "unknown": "INFO", + "low": "LOW", + "debug": "DEBUG", + } + b := &Builder{AccountID: "acc", Cluster: "c"} + for sev, want := range cases { + t.Run("severity="+sev, func(t *testing.T) { + labels := map[string]string{"alertname": "X", "pod": "p", "severity": sev} + raw, _ := json.Marshal(map[string]any{"alerts": []map[string]any{{"labels": labels}}}) + out, _, err := b.FromAlertManager(raw) + if err != nil || len(out) == 0 { + t.Fatalf("err=%v len=%d", err, len(out)) + } + if out[0].Finding.Priority != want { + t.Errorf("priority = %q; want %q", out[0].Finding.Priority, want) + } + }) + } +} + +func TestBuilder_Alert_StableFingerprint(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + raw := []byte(`{"alerts":[{ + "startsAt":"2026-05-07T10:00:00Z", + "labels":{"alertname":"X","pod":"p","namespace":"ns","severity":"critical"} + }]}`) + a, _, _ := b.FromAlertManager(raw) + c, _, _ := b.FromAlertManager(raw) + if a[0].Finding.Fingerprint == "" { + t.Fatal("fingerprint must be set") + } + if a[0].Finding.Fingerprint != c[0].Finding.Fingerprint { + t.Errorf("fingerprint not stable across builds: %q vs %q", + a[0].Finding.Fingerprint, c[0].Finding.Fingerprint) + } +} + +func TestBuilder_Alert_PreservesUpstreamFingerprint(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + // AlertManager sometimes carries its own fingerprint — preserve it. + // The backend uses fingerprint to dedupe, and AlertManager's is + // the more stable one. + raw := []byte(`{"alerts":[{ + "fingerprint":"upstream-fp-1234", + "labels":{"alertname":"X","pod":"p","namespace":"ns"} + }]}`) + out, _, _ := b.FromAlertManager(raw) + if out[0].Finding.Fingerprint != "upstream-fp-1234" { + t.Errorf("upstream fingerprint not preserved: %q", out[0].Finding.Fingerprint) + } +} + +func TestBuilder_Kubewatch_HappyPath(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + raw := []byte(`{ + "operation":"update", + "kind":"Deployment", + "obj":{"metadata":{"name":"web","namespace":"prod"}} + }`) + env, err := b.FromKubewatchEvent(raw) + if err != nil { + t.Fatal(err) + } + if env.Finding.SubjectType != "deployment" { + t.Errorf("subject_type = %q; want deployment (lowercased Kind)", env.Finding.SubjectType) + } + if env.Finding.AggregationKey != "k8s_event_deployment_update" { + t.Errorf("aggregation_key = %q", env.Finding.AggregationKey) + } + if env.Finding.Source != "kubernetes_api_server" { + t.Errorf("source = %q; want kubernetes_api_server", env.Finding.Source) + } + if env.Finding.FindingType != "configuration_change" { + t.Errorf("finding_type = %q; want configuration_change", env.Finding.FindingType) + } + // Evidence.data is a JSON-stringified array of blocks; the inner + // "json" block's `data` field is itself a JSON string. + var blocks []map[string]any + if err := json.Unmarshal([]byte(env.Evidence[0].Data), &blocks); err != nil { + t.Fatalf("evidence.data not a JSON array: %v", err) + } + innerJSON, _ := blocks[0]["data"].(string) + if !strings.Contains(innerJSON, `"name":"web"`) { + t.Errorf("raw obj missing from evidence: %s", innerJSON) + } +} + +func TestBuilder_Kubewatch_RejectsMissingName(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + raw := []byte(`{"kind":"Pod","operation":"create","obj":{"metadata":{}}}`) + if _, err := b.FromKubewatchEvent(raw); err == nil { + t.Error("expected error for payload without metadata.name") + } +} + +// TestBuilder_StartsAtIsRFC3339 pins the timestamp format. api-server's +// trigger_investigation handler decodes starts_at via mapstructure into +// time.Time, and its HasTimezoneIndicator gate appends "Z" if no offset +// is found — but only RFC3339 (with the T separator) round-trips cleanly. +// A Postgres-format string ("2026-05-07 13:00:57") becomes +// "2026-05-07 13:00:57Z" after the gate and then fails mapstructure. +// This test catches regressions back to the buggy space-separated layout. +func TestBuilder_StartsAtIsRFC3339(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + + // Kubewatch path generates the timestamp internally — RFC3339 is required. + env, err := b.FromKubewatchEvent([]byte( + `{"operation":"create","kind":"Pod","obj":{"metadata":{"name":"p","namespace":"ns"}}}`)) + if err != nil { + t.Fatal(err) + } + if _, err := time.Parse(time.RFC3339, env.Finding.StartsAt); err != nil { + t.Errorf("kubewatch starts_at = %q; not RFC3339: %v", env.Finding.StartsAt, err) + } + + // Alerts that arrive with no startsAt fall through to the same code path. + out, _, err := b.FromAlertManager([]byte( + `{"alerts":[{"labels":{"alertname":"X","pod":"p"}}]}`)) + if err != nil { + t.Fatal(err) + } + if _, err := time.Parse(time.RFC3339, out[0].Finding.StartsAt); err != nil { + t.Errorf("alert (no upstream startsAt) starts_at = %q; not RFC3339: %v", + out[0].Finding.StartsAt, err) + } +} + +// TestEvidence_DataIsJSONStringifiedArray asserts the wire-shape detail +// the collector relies on: Evidence.data +// is a JSON-stringified array of structured-data items, NOT a raw object. +func TestEvidence_DataIsJSONStringifiedArray(t *testing.T) { + b := &Builder{AccountID: "acc", Cluster: "c"} + raw := []byte(`{"alerts":[{"labels":{"alertname":"X","pod":"p"}}]}`) + out, _, _ := b.FromAlertManager(raw) + var blocks []map[string]any + if err := json.Unmarshal([]byte(out[0].Evidence[0].Data), &blocks); err != nil { + t.Fatalf("Evidence.Data is not a JSON-stringified array: %v\n%s", + err, out[0].Evidence[0].Data) + } + if len(blocks) != 1 || blocks[0]["type"] != "json" { + t.Errorf("unexpected blocks shape: %v", blocks) + } +} diff --git a/runner/pkg/alerts/server.go b/runner/pkg/alerts/server.go new file mode 100644 index 0000000..44fd4d8 --- /dev/null +++ b/runner/pkg/alerts/server.go @@ -0,0 +1,283 @@ +// Package alerts is the in-cluster receiver for AlertManager + kubewatch +// webhook sources. Per plan §2 (backend composes via primitives), this +// agent does NOT match alerts against playbooks, does NOT enrich, does NOT +// build smart findings. +// +// Stage-1A scope: the agent does the bare minimum to package each raw +// alert / kubewatch event into a Finding envelope and POSTs it to the +// existing collector `POST /v1/k8s/events` endpoint. Zero collector +// changes; the existing the backend pipeline accepts these Findings +// directly. When real enrichers ship in api-server (plan §5a), this +// default-Finding builder shrinks to a stub and api-server takes over +// composition. +// +// HTTP routes (kept identical to the legacy runner so chart configs +// don't change at cutover): +// +// POST /api/alerts — AlertManager webhook (Prometheus alerts) +// POST /api/handle — kubewatch event watcher (chart's existing target) +// POST /api/k8s-events — alias for /api/handle (future agent-internal watcher) +// GET /healthz — liveness probe +package alerts + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "log/slog" + "net/http" + "sync/atomic" + "time" +) + +type Forwarder struct { + BackendURL string // full collector URL, e.g. https://collector.dev.nudgebee.pollux.in/v1/k8s/events + AuthSecret string // sent as Authorization: (matches relay) + AccountID string // sent as X-NB-Account-Id (collector adds tenant + cloud_account_id) + Cluster string // sent as X-NB-Cluster + HTTP *http.Client + Logger *slog.Logger + + // Engine evaluates kubewatch K8s events against the trigger matcher + // set (pkg/triggers). Only events where a matcher fires produce a + // Finding — "no playbook → no Finding". When unset, every K8s event + // is dropped (matches the safe default in plan stage 2.1). + Engine TriggerEngine + + builder *Builder + dropped atomic.Uint64 // forward failures / unparseable input + k8sUnmatched atomic.Uint64 // kubewatch events received but no matcher fired +} + +// TriggerEngine is the subset of pkg/triggers.Engine the forwarder calls. +// Defined as an interface so pkg/alerts doesn't import pkg/triggers +// (the engine wires up at process boot in main.go). +type TriggerEngine interface { + MatchK8sEvent(operation, kind string, obj, oldObj map[string]any) []MatchedTrigger +} + +func NewForwarder(backendURL, authSecret, accountID, cluster string, logger *slog.Logger) *Forwarder { + if logger == nil { + logger = slog.Default() + } + return &Forwarder{ + BackendURL: backendURL, + AuthSecret: authSecret, + AccountID: accountID, + Cluster: cluster, + HTTP: &http.Client{Timeout: 10 * time.Second}, + Logger: logger, + builder: &Builder{AccountID: accountID, Cluster: cluster}, + } +} + +// Mux returns an http.Handler exposing the alert + kubewatch + healthz +// routes. Mount under the agent's HTTP server (default :5000 — the +// long-standing AlertManager target port). +func (f *Forwarder) Mux() http.Handler { + mux := http.NewServeMux() + mux.HandleFunc("/api/alerts", f.handleAlert) + // kubewatch's chart targets `/api/handle` + // (k8s-agent/charts/nudgebee-agent/templates/kubewatch-configmap.yaml:13). + // `/api/k8s-events` is an alias for any future agent-internal event watcher. + mux.HandleFunc("/api/handle", f.handleK8sEvent) + mux.HandleFunc("/api/k8s-events", f.handleK8sEvent) + mux.HandleFunc("/healthz", func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusOK) + _, _ = io.WriteString(w, "ok") + }) + return mux +} + +// handleAlert receives an AlertManager webhook (one or more PrometheusAlert +// items under `alerts[]`), builds one Finding envelope per alert via the +// default builder, and POSTs each to the collector. AlertManager retries +// on non-2xx are noisy; we always 202 and meter drops via Dropped(). +func (f *Forwarder) handleAlert(w http.ResponseWriter, r *http.Request) { + body, ok := readBody(w, r) + if !ok { + return + } + w.WriteHeader(http.StatusAccepted) + + go func() { + envelopes, droppedSubjects, err := f.builder.FromAlertManager(body) + if err != nil { + f.recordDrop("alertmanager", err) + return + } + if droppedSubjects > 0 { + f.Logger.Info("alertmanager: dropped alerts with no resolvable subject", + "count", droppedSubjects) + } + for i := range envelopes { + if err := f.forward(context.Background(), &envelopes[i]); err != nil { + f.recordDrop("alertmanager", err) + } + } + }() +} + +// handleK8sEvent receives a kubewatch payload at `/api/handle` (or alias) +// and runs it through the trigger engine. Effective behaviour: most +// kubewatch events match no trigger and are silently dropped — only +// events matching a registered predicate produce a Finding. +// +// Three payload shapes: +// +// {"type":"cluster_snapshot", ...} — drop. pkg/discovery already does +// informer-driven full sync every +// 30 min. +// {"data":{operation,kind,obj,...}} — run through Engine.MatchK8sEvent. +// One Finding per fired matcher +// (a Pod can be both +// ImagePullBackOff and +// CrashLoopBackOff). +// {} — malformed; drop with WARN. +func (f *Forwarder) handleK8sEvent(w http.ResponseWriter, r *http.Request) { + body, ok := readBody(w, r) + if !ok { + return + } + w.WriteHeader(http.StatusAccepted) + + var probe struct { + Type string `json:"type"` + Data json.RawMessage `json:"data"` + } + if err := json.Unmarshal(body, &probe); err != nil { + f.Logger.Warn("kubewatch: payload parse failed; dropping", + "err", err, "bytes", len(body)) + return + } + if probe.Type == "cluster_snapshot" { + f.Logger.Info("kubewatch: cluster_snapshot dropped (pkg/discovery already handles full sync)") + return + } + if len(probe.Data) == 0 { + f.Logger.Warn("kubewatch: payload missing both `type` and `data`; dropping", + "bytes", len(body)) + return + } + + if f.Engine == nil { + // Engine unwired = drop everything. Safe default for environments + // where matchers haven't been opted in. Operators see the + // k8sUnmatched counter climb so it's clear events are arriving. + f.k8sUnmatched.Add(1) + f.Logger.Debug("kubewatch: trigger engine not configured; dropping event") + return + } + + // Parse the inner `data` dict to extract operation/kind/obj/oldObj. + var inner struct { + Operation string `json:"operation"` + Kind string `json:"kind"` + Obj map[string]any `json:"obj"` + OldObj map[string]any `json:"oldObj"` + } + if err := json.Unmarshal(probe.Data, &inner); err != nil { + f.Logger.Warn("kubewatch: inner data parse failed; dropping", + "err", err) + return + } + + matches := f.Engine.MatchK8sEvent(inner.Operation, inner.Kind, inner.Obj, inner.OldObj) + if len(matches) == 0 { + f.k8sUnmatched.Add(1) + return + } + + // One Finding per match. The same kubewatch event can fire multiple + // matchers (e.g., a Pod that's both ImagePullBackOff and CrashLoopBackOff) + // — each produces its own Finding with its own aggregation_key. + go func() { + for i := range matches { + env, err := f.builder.FromMatchedTrigger(matches[i], probe.Data) + if err != nil { + f.recordDrop("kubewatch_matcher_"+matches[i].MatcherName, err) + continue + } + if err := f.forward(context.Background(), env); err != nil { + f.recordDrop("kubewatch_matcher_"+matches[i].MatcherName, err) + } + } + }() +} + +// readBody enforces POST + a 5 MB cap. Returns (body, true) on success, +// or writes an error and returns (nil, false). +func readBody(w http.ResponseWriter, r *http.Request) ([]byte, bool) { + if r.Method != http.MethodPost { + http.Error(w, "method not allowed", http.StatusMethodNotAllowed) + return nil, false + } + body, err := io.ReadAll(io.LimitReader(r.Body, 5<<20)) + if err != nil { + http.Error(w, "read body: "+err.Error(), http.StatusBadRequest) + return nil, false + } + _ = r.Body.Close() + return body, true +} + +// forward POSTs a Finding envelope to the collector's existing +// `/v1/k8s/events` endpoint. Body is plain JSON; the legacy sender gzips +// because Findings can include large evidence blocks (Loki logs etc.) — +// our Stage-1A envelopes are KB-scale (raw alert / k8s event payload only), +// so plain JSON is simpler and well under the gzip-makes-sense threshold. +func (f *Forwarder) forward(ctx context.Context, env *FindingEnvelope) error { + if f.BackendURL == "" { + return errors.New("backend URL not configured") + } + body, err := json.Marshal(env) + if err != nil { + return fmt.Errorf("marshal envelope: %w", err) + } + req, err := http.NewRequestWithContext(ctx, http.MethodPost, f.BackendURL, bytes.NewReader(body)) + if err != nil { + return err + } + req.Header.Set("Content-Type", "application/json") + if f.AccountID != "" { + req.Header.Set("X-NB-Account-Id", f.AccountID) + } + if f.Cluster != "" { + req.Header.Set("X-NB-Cluster", f.Cluster) + } + if f.AuthSecret != "" { + // Bare base64 — same shape relay + telemetry use. + req.Header.Set("Authorization", basicAuth(f.AuthSecret)) + } + + resp, err := f.HTTP.Do(req) + if err != nil { + return fmt.Errorf("post: %w", err) + } + defer func() { _ = resp.Body.Close() }() + if resp.StatusCode >= 400 { + respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 1024)) + return fmt.Errorf("backend HTTP %d: %s", resp.StatusCode, string(respBody)) + } + return nil +} + +func (f *Forwarder) recordDrop(source string, err error) { + f.dropped.Add(1) + f.Logger.Error("event forward failed", + "source", source, "err", err, "dropped_total", f.dropped.Load()) +} + +// Dropped returns the running count of events dropped due to forward +// failure or unparseable input. Wire to a Prometheus metric in main. +func (f *Forwarder) Dropped() uint64 { return f.dropped.Load() } + +// K8sUnmatched returns the running count of kubewatch events that +// arrived but matched no trigger (or arrived with no engine wired). +// Useful for confirming the agent IS receiving traffic — a plateauing +// counter alongside zero Findings is the signature of "matchers +// running, nothing to fire on", not "agent broken". +func (f *Forwarder) K8sUnmatched() uint64 { return f.k8sUnmatched.Load() } diff --git a/runner/pkg/alerts/server_test.go b/runner/pkg/alerts/server_test.go new file mode 100644 index 0000000..a5ab179 --- /dev/null +++ b/runner/pkg/alerts/server_test.go @@ -0,0 +1,420 @@ +package alerts + +import ( + "bytes" + "encoding/json" + "io" + "log/slog" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +// TestForwarder_AlertHappyPath verifies /api/alerts builds a Finding +// envelope per alert and POSTs to the collector with the existing auth + +// tenant headers. The body must be the {finding, evidence, message} +// envelope (no `event_type` wrapper) so the collector pipeline accepts it. +func TestForwarder_AlertHappyPath(t *testing.T) { + got := make(chan *http.Request, 1) + gotBody := make(chan []byte, 1) + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + body, _ := io.ReadAll(r.Body) + got <- r + gotBody <- body + w.WriteHeader(http.StatusOK) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "test-secret", "acc-uuid", "cluster-x", slog.Default()) + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + rawWebhook := `{"alerts":[{ + "startsAt":"2026-05-07T10:00:00Z", + "status":"firing", + "labels":{"alertname":"PodCrashLooping","pod":"web-0","namespace":"prod","severity":"critical"}, + "annotations":{"summary":"Pod web-0 in prod is crashlooping"} + }]}` + resp, err := http.Post(srv.URL+"/api/alerts", "application/json", strings.NewReader(rawWebhook)) + if err != nil { + t.Fatal(err) + } + defer resp.Body.Close() + if resp.StatusCode != http.StatusAccepted { + t.Errorf("status = %d; want 202", resp.StatusCode) + } + + select { + case r := <-got: + if r.Header.Get("X-NB-Account-Id") != "acc-uuid" { + t.Errorf("X-NB-Account-Id = %q", r.Header.Get("X-NB-Account-Id")) + } + if r.Header.Get("X-NB-Cluster") != "cluster-x" { + t.Errorf("X-NB-Cluster = %q", r.Header.Get("X-NB-Cluster")) + } + // Bare base64, no "Basic " prefix — matches the legacy sink format. + if r.Header.Get("Authorization") == "" || strings.HasPrefix(r.Header.Get("Authorization"), "Basic ") { + t.Errorf("Authorization = %q (expected bare base64, no Basic prefix)", r.Header.Get("Authorization")) + } + case <-time.After(2 * time.Second): + t.Fatal("backend never received forwarded alert") + } + + body := <-gotBody + var env FindingEnvelope + if err := json.Unmarshal(body, &env); err != nil { + t.Fatalf("forwarded body is not a FindingEnvelope: %v\n%s", err, body) + } + // Field-by-field assertions against the backend shape. + if env.Finding.Source != "prometheus" { + t.Errorf("source = %q; want prometheus", env.Finding.Source) + } + if env.Finding.FindingType != "issue" { + t.Errorf("finding_type = %q; want issue", env.Finding.FindingType) + } + if env.Finding.AggregationKey != "PodCrashLooping" { + t.Errorf("aggregation_key = %q; want PodCrashLooping", env.Finding.AggregationKey) + } + if env.Finding.SubjectName != "web-0" || env.Finding.SubjectType != "pod" { + t.Errorf("subject = (%q,%q); want (web-0,pod)", env.Finding.SubjectName, env.Finding.SubjectType) + } + if env.Finding.SubjectNamespace != "prod" { + t.Errorf("subject_namespace = %q; want prod", env.Finding.SubjectNamespace) + } + if env.Finding.Priority != "HIGH" { + t.Errorf("priority = %q; want HIGH (severity=critical)", env.Finding.Priority) + } + if env.Finding.AccountID != "acc-uuid" || env.Finding.Cluster != "cluster-x" { + t.Errorf("account/cluster = (%q,%q)", env.Finding.AccountID, env.Finding.Cluster) + } + if env.Finding.Fingerprint == "" { + t.Error("fingerprint must be set so consumer can dedupe") + } + if len(env.Evidence) != 1 { + t.Fatalf("evidence count = %d; want 1 (raw payload block)", len(env.Evidence)) + } + if env.Evidence[0].FileType != "structured_data" { + t.Errorf("evidence file_type = %q; want structured_data", env.Evidence[0].FileType) + } + // Evidence.data is a JSON-stringified list of structured-data blocks. + // Parse it back and walk to the inner json block to confirm the raw + // alert is preserved. + var blocks []map[string]any + if err := json.Unmarshal([]byte(env.Evidence[0].Data), &blocks); err != nil { + t.Fatalf("evidence.data not a JSON array: %v", err) + } + if len(blocks) != 1 || blocks[0]["type"] != "json" { + t.Fatalf("unexpected evidence blocks: %v", blocks) + } + innerJSON, _ := blocks[0]["data"].(string) + if !strings.Contains(innerJSON, `"alertname":"PodCrashLooping"`) { + t.Errorf("raw alert payload missing from evidence inner block: %s", innerJSON) + } +} + +// TestForwarder_AlertWithoutSubjectIsDropped — alerts that don't carry a +// pod/deployment/node/etc. label can't produce a Finding the consumer +// will accept hard-drops on missing +// subject_name). The forwarder counts it as dropped instead of letting +// the consumer silently swallow it. +func TestForwarder_AlertWithoutSubjectIsDropped(t *testing.T) { + var hits int + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + hits++ + w.WriteHeader(http.StatusOK) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "tok", "acc-1", "cluster-x", slog.Default()) + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + // Only an alertname — no pod/deployment/node label. + rawWebhook := `{"alerts":[{"labels":{"alertname":"GenericFire","severity":"warning"},"annotations":{}}]}` + resp, err := http.Post(srv.URL+"/api/alerts", "application/json", strings.NewReader(rawWebhook)) + if err != nil { + t.Fatal(err) + } + resp.Body.Close() + time.Sleep(200 * time.Millisecond) + if hits != 0 { + t.Errorf("backend received %d forwards; want 0 (alert with no subject must be dropped)", hits) + } +} + +// TestForwarder_K8sEventDroppedWithoutEngine — the forwarder's default +// (no Engine wired) is to drop every kubewatch event. Mirrors the +// "no playbook → no Finding" effective behaviour. Without this gate, a +// healthy Pod create event would have produced a no-op Finding and +// flooded the UI. +func TestForwarder_K8sEventDroppedWithoutEngine(t *testing.T) { + var hits int + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + hits++ + w.WriteHeader(http.StatusOK) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "", "acc", "cluster", slog.Default()) + // f.Engine is nil — no matchers wired. + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + resp, err := http.Post(srv.URL+"/api/handle", "application/json", strings.NewReader( + `{"data":{"operation":"create","kind":"Pod","obj":{"metadata":{"name":"p","namespace":"ns"}}}}`)) + if err != nil { + t.Fatal(err) + } + defer resp.Body.Close() + if resp.StatusCode != http.StatusAccepted { + t.Errorf("status = %d; want 202 (still ack kubewatch even on drop)", resp.StatusCode) + } + time.Sleep(150 * time.Millisecond) + if hits != 0 { + t.Errorf("backend received %d forwards; want 0", hits) + } + if got := f.K8sUnmatched(); got != 1 { + t.Errorf("K8sUnmatched() = %d; want 1", got) + } +} + +// TestForwarder_K8sEventFiresOneFindingPerMatch — when the engine +// produces matches, the forwarder emits one Finding per match with the +// matched aggregation_key. The same kubewatch event firing two matchers +// produces two Findings (both with matching subject info but distinct +// aggregation_key + fingerprint). +func TestForwarder_K8sEventFiresOneFindingPerMatch(t *testing.T) { + gotBody := make(chan []byte, 4) + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + b, _ := io.ReadAll(r.Body) + gotBody <- b + w.WriteHeader(http.StatusOK) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "tok", "acc-uuid", "cluster-x", slog.Default()) + f.Engine = &fakeEngine{matches: []MatchedTrigger{ + { + AggregationKey: "report_crash_loop", + Priority: "HIGH", + FindingType: "issue", + Fingerprint: "fp-crash", + SubjectName: "web-0", + SubjectNamespace: "prod", + SubjectKind: "pod", + MatcherName: "pod_crash_loop", + }, + { + AggregationKey: "image_pull_backoff_reporter", + Priority: "MEDIUM", + FindingType: "issue", + Fingerprint: "fp-pull", + SubjectName: "web-0", + SubjectNamespace: "prod", + SubjectKind: "pod", + MatcherName: "image_pull_backoff", + }, + }} + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + if _, err := http.Post(srv.URL+"/api/handle", "application/json", strings.NewReader( + `{"data":{"operation":"update","kind":"Pod","obj":{"metadata":{"name":"web-0","namespace":"prod"}}}}`)); err != nil { + t.Fatal(err) + } + + gotKeys := map[string]bool{} + deadline := time.After(2 * time.Second) + for len(gotKeys) < 2 { + select { + case body := <-gotBody: + var env FindingEnvelope + if err := json.Unmarshal(body, &env); err != nil { + t.Fatalf("body parse failed: %v\n%s", err, body) + } + gotKeys[env.Finding.AggregationKey] = true + case <-deadline: + t.Fatalf("expected 2 Findings; got %d: %v", len(gotKeys), gotKeys) + } + } + if !gotKeys["report_crash_loop"] || !gotKeys["image_pull_backoff_reporter"] { + t.Errorf("missing expected aggregation_keys; got %v", gotKeys) + } +} + +// fakeEngine returns a fixed match list for any input. Test-only. +type fakeEngine struct{ matches []MatchedTrigger } + +func (e *fakeEngine) MatchK8sEvent(_, _ string, _, _ map[string]any) []MatchedTrigger { + return e.matches +} + +// (TestForwarder_K8sEventHappyPath was removed in stage 2.1 — replaced by +// TestForwarder_K8sEventDroppedWithoutEngine + the per-match test above. +// The old "every event becomes a Finding" behaviour is intentionally gone.) + +// TestForwarder_K8sEventClusterSnapshotDropped covers the kubewatch-specific +// invariant: cluster_snapshot is dropped at the agent because pkg/discovery +// already handles informer-driven full sync. Forwarding it would duplicate +// every workload payload every hour. +func TestForwarder_K8sEventClusterSnapshotDropped(t *testing.T) { + var hits int + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + hits++ + w.WriteHeader(http.StatusOK) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "", "", "", slog.Default()) + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + resp, err := http.Post(srv.URL+"/api/handle", "application/json", + strings.NewReader(`{"type":"cluster_snapshot","clusterSnapshot":{"workloads":[]}}`)) + if err != nil { + t.Fatal(err) + } + if resp.StatusCode != http.StatusAccepted { + t.Errorf("status = %d; want 202 (still ack kubewatch even on drop)", resp.StatusCode) + } + time.Sleep(200 * time.Millisecond) + if hits != 0 { + t.Errorf("backend received %d forwards; cluster_snapshot must be dropped", hits) + } +} + +// TestForwarder_K8sEventBadPayloadDropped — malformed JSON or payload +// missing both `type` and `data` is dropped (no forward, no panic). +func TestForwarder_K8sEventBadPayloadDropped(t *testing.T) { + var hits int + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + hits++ + w.WriteHeader(http.StatusOK) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "", "", "", slog.Default()) + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + if _, err := http.Post(srv.URL+"/api/handle", "application/json", + strings.NewReader(`not json`)); err != nil { + t.Fatal(err) + } + if _, err := http.Post(srv.URL+"/api/handle", "application/json", + strings.NewReader(`{}`)); err != nil { + t.Fatal(err) + } + + time.Sleep(200 * time.Millisecond) + if hits != 0 { + t.Errorf("backend received %d forwards on malformed input; should be 0", hits) + } +} + +// TestForwarder_K8sEventsAlias verifies /api/k8s-events aliases /api/handle. +// Same trigger-engine semantics — both URLs run inputs through the engine. +func TestForwarder_K8sEventsAlias(t *testing.T) { + gotBody := make(chan []byte, 1) + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + b, _ := io.ReadAll(r.Body) + gotBody <- b + w.WriteHeader(http.StatusOK) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "", "acc", "cluster", slog.Default()) + f.Engine = &fakeEngine{matches: []MatchedTrigger{{ + AggregationKey: "test_alias", + Priority: "INFO", + FindingType: "issue", + Fingerprint: "fp", + SubjectName: "d", + SubjectNamespace: "ns", + SubjectKind: "deployment", + MatcherName: "test", + }}} + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + if _, err := http.Post(srv.URL+"/api/k8s-events", "application/json", + strings.NewReader(`{"data":{"operation":"update","kind":"Deployment","obj":{"metadata":{"name":"d","namespace":"ns"}}}}`)); err != nil { + t.Fatal(err) + } + + select { + case body := <-gotBody: + var env FindingEnvelope + if err := json.Unmarshal(body, &env); err != nil { + t.Fatalf("alias body parse failed: %v\n%s", err, body) + } + if env.Finding.AggregationKey != "test_alias" { + t.Errorf("alias did not route through engine: aggregation_key=%q", env.Finding.AggregationKey) + } + case <-time.After(2 * time.Second): + t.Fatal("alias /api/k8s-events did not forward") + } +} + +func TestForwarder_RejectsNonPost(t *testing.T) { + f := NewForwarder("http://nowhere", "", "", "", slog.Default()) + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + for _, path := range []string{"/api/alerts", "/api/handle", "/api/k8s-events"} { + resp, err := http.Get(srv.URL + path) + if err != nil { + t.Fatal(err) + } + if resp.StatusCode != http.StatusMethodNotAllowed { + t.Errorf("%s GET status = %d; want 405", path, resp.StatusCode) + } + } +} + +// TestForwarder_StillReturns202OnBackendFailure — AlertManager retries are +// noisy; we always 202 the webhook handshake even when the backend is down. +func TestForwarder_StillReturns202OnBackendFailure(t *testing.T) { + backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusInternalServerError) + })) + defer backend.Close() + + f := NewForwarder(backend.URL, "", "acc", "cluster", slog.Default()) + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + resp, err := http.Post(srv.URL+"/api/alerts", "application/json", + bytes.NewReader([]byte(`{"alerts":[{"labels":{"alertname":"X","pod":"p","namespace":"ns"}}]}`))) + if err != nil { + t.Fatal(err) + } + if resp.StatusCode != http.StatusAccepted { + t.Errorf("status = %d; want 202 (always ack AlertManager to suppress retries)", resp.StatusCode) + } + + deadline := time.Now().Add(2 * time.Second) + for time.Now().Before(deadline) { + if f.Dropped() == 1 { + return + } + time.Sleep(10 * time.Millisecond) + } + t.Errorf("dropped counter = %d; want 1", f.Dropped()) +} + +func TestForwarder_HealthzReturns200(t *testing.T) { + f := NewForwarder("http://nowhere", "", "", "", slog.Default()) + srv := httptest.NewServer(f.Mux()) + defer srv.Close() + + resp, err := http.Get(srv.URL + "/healthz") + if err != nil { + t.Fatal(err) + } + if resp.StatusCode != http.StatusOK { + t.Errorf("status = %d; want 200", resp.StatusCode) + } +} diff --git a/runner/pkg/auth/auth.go b/runner/pkg/auth/auth.go new file mode 100644 index 0000000..685b4df --- /dev/null +++ b/runner/pkg/auth/auth.go @@ -0,0 +1,247 @@ +// Package auth implements three authentication paths: +// +// 1. HMAC signature — validate_action_request_signature +// 2. RSA-OAEP partial keys — validate_with_private_key +// 3. Light-action allowlist — validate_light_action +// +// The dispatcher picks the first present mode in the request and skips the others. +package auth + +import ( + "crypto/hmac" + "crypto/rsa" + "crypto/sha256" + "crypto/x509" + "encoding/base64" + "encoding/hex" + "encoding/json" + "encoding/pem" + "errors" + "fmt" + "math/big" + "os" + "sync/atomic" + + "github.com/google/uuid" + + "github.com/nudgebee/nudgebee-agent/pkg/canonjson" +) + +// LoadPrivateKey reads a PEM-encoded RSA private key from disk. Supports +// both PKCS#1 ("BEGIN RSA PRIVATE KEY") and PKCS#8 ("BEGIN PRIVATE KEY") +// formats — the auth-config.yaml ConfigMap uses PKCS#8. +func LoadPrivateKey(path string) (*rsa.PrivateKey, error) { + data, err := os.ReadFile(path) + if err != nil { + return nil, fmt.Errorf("auth: read RSA key from %s: %w", path, err) + } + block, _ := pem.Decode(data) + if block == nil { + return nil, fmt.Errorf("auth: %s does not contain a PEM block", path) + } + switch block.Type { + case "RSA PRIVATE KEY": + return x509.ParsePKCS1PrivateKey(block.Bytes) + case "PRIVATE KEY": + k, err := x509.ParsePKCS8PrivateKey(block.Bytes) + if err != nil { + return nil, err + } + rsaKey, ok := k.(*rsa.PrivateKey) + if !ok { + return nil, fmt.Errorf("auth: %s contains a non-RSA private key", path) + } + return rsaKey, nil + default: + return nil, fmt.Errorf("auth: unexpected PEM block type %q in %s", block.Type, path) + } +} + +// Request is the in-memory shape of an incoming ExternalActionRequest after +// JSON unmarshal. Body is the same map the wire JSON `body` field decoded to; +// canonjson encodes it before signing/hashing. +type Request struct { + Body map[string]any + ActionName string + Signature string // HMAC mode + PartialAuthA string // RSA partial keys mode (encrypted, base64) + PartialAuthB string // RSA partial keys mode (encrypted, base64) +} + +// Validator holds the agent's auth state. +// +// LightActions is atomically swappable so refresh_playbook can update the +// allowlist without dropping the WS connection or interleaving with concurrent +// Validate calls. Use SetLightActions for runtime updates. +type Validator struct { + // SigningKey is the shared HMAC secret AND the UUID that key_a XOR key_b + // must reconstruct in the partial-keys path. Empty disables both modes. + SigningKey string + + // PrivateKey is the agent-side RSA private key for the partial-keys path. + // Nil disables partial-keys auth. + PrivateKey *rsa.PrivateKey + + // LightActions can be set directly at startup; SetLightActions / + // LightActionsSet hot-swap it under load. + LightActions map[string]struct{} + + // lightActionsAtomic, when non-nil, takes precedence over LightActions. + // Set via SetLightActions. + lightActionsAtomic atomic.Pointer[map[string]struct{}] +} + +// SetLightActions atomically replaces the light-action allowlist. Concurrent +// Validate calls see either the old or new set, never a torn read. Pass an +// empty map to disable all light actions; pass nil to fall back to the +// startup-set Validator.LightActions. +func (v *Validator) SetLightActions(actions map[string]struct{}) { + if actions == nil { + v.lightActionsAtomic.Store(nil) + return + } + // Defensive copy so callers can't mutate the live map under us. + dup := make(map[string]struct{}, len(actions)) + for k := range actions { + dup[k] = struct{}{} + } + v.lightActionsAtomic.Store(&dup) +} + +// LightActionsSet returns the active allowlist (atomic if set, otherwise +// the startup map). Callers must NOT mutate the result. +func (v *Validator) LightActionsSet() map[string]struct{} { + if p := v.lightActionsAtomic.Load(); p != nil { + return *p + } + return v.LightActions +} + +// Validate returns nil if the request is authentic per any of the three modes. +// Mirrors the backend's dispatch logic. +func (v *Validator) Validate(r *Request) error { + switch { + case r.Signature != "": + return v.validateHMAC(r) + case r.PartialAuthA != "" || r.PartialAuthB != "": + return v.validatePartialKeys(r) + default: + return v.validateLightAction(r) + } +} + +func (v *Validator) validateLightAction(r *Request) error { + set := v.LightActionsSet() + if set == nil { + return errors.New("auth: light-action mode disabled") + } + if _, ok := set[r.ActionName]; !ok { + return fmt.Errorf("auth: action %q not in light-action allowlist", r.ActionName) + } + return nil +} + +// validateHMAC mirrors sign_action_request: +// +// format_req = "v0:" + body.json(exclude_none=True, sort_keys=True) +// mac = hmac.new(signing_key, format_req, sha256).hexdigest() +// signature = "v0=" + mac +// +// Note the WITH-SPACES canonical form (default Python json.dumps separators), +// not the no-space form used in the partial-keys hash path. +func (v *Validator) validateHMAC(r *Request) error { + if v.SigningKey == "" { + return errors.New("auth: signing key not configured") + } + body, err := canonjson.EncodeForSignature(r.Body) + if err != nil { + return fmt.Errorf("auth: encode body for sig: %w", err) + } + mac := hmac.New(sha256.New, []byte(v.SigningKey)) + mac.Write([]byte("v0:")) + mac.Write(body) + expected := "v0=" + hex.EncodeToString(mac.Sum(nil)) + if !hmac.Equal([]byte(expected), []byte(r.Signature)) { + return errors.New("auth: signature mismatch") + } + return nil +} + +// validatePartialKeys decrypts both partial payloads with the agent RSA key +// (OAEP-MGF1-SHA256), parses {key, hash}, verifies both hashes match +// v0=sha256(canonical_json(body)), and verifies +// key_a XOR key_b == signing_key UUID as a 128-bit int. +func (v *Validator) validatePartialKeys(r *Request) error { + if v.PrivateKey == nil { + return errors.New("auth: private key not configured") + } + if v.SigningKey == "" { + return errors.New("auth: signing key not configured") + } + if r.PartialAuthA == "" || r.PartialAuthB == "" { + return errors.New("auth: missing partial auth") + } + + body, err := canonjson.Encode(r.Body) // no-space form for partial-keys hash path + if err != nil { + return fmt.Errorf("auth: encode body for partial-key hash: %w", err) + } + sum := sha256.Sum256(body) + expectedHash := "v0=" + hex.EncodeToString(sum[:]) + + keyA, err := v.extractPartialKey(r.PartialAuthA, expectedHash) + if err != nil { + return fmt.Errorf("auth: partial_auth_a: %w", err) + } + keyB, err := v.extractPartialKey(r.PartialAuthB, expectedHash) + if err != nil { + return fmt.Errorf("auth: partial_auth_b: %w", err) + } + + signingUUID, err := uuid.Parse(v.SigningKey) + if err != nil { + return fmt.Errorf("auth: signing key not a UUID: %w", err) + } + + // XOR of two 128-bit UUIDs as bytes; compare with signing_key UUID bytes. + want := uuidToBigInt(signingUUID) + got := new(big.Int).Xor(uuidToBigInt(keyA), uuidToBigInt(keyB)) + if want.Cmp(got) != 0 { + return errors.New("auth: key_a XOR key_b does not match signing key") + } + return nil +} + +// extractPartialKey decrypts one base64-encoded RSA-OAEP-MGF1-SHA256 ciphertext, +// parses {hash, key} JSON inside, verifies the hash matches the request body, +// and returns the embedded UUID. +func (v *Validator) extractPartialKey(encoded, expectedHash string) (uuid.UUID, error) { + ciphertext, err := base64.StdEncoding.DecodeString(encoded) + if err != nil { + return uuid.Nil, fmt.Errorf("base64: %w", err) + } + plain, err := rsa.DecryptOAEP(sha256.New(), nil, v.PrivateKey, ciphertext, nil) + if err != nil { + return uuid.Nil, fmt.Errorf("rsa-oaep: %w", err) + } + var auth struct { + Hash string `json:"hash"` + Key string `json:"key"` + } + if err := json.Unmarshal(plain, &auth); err != nil { + return uuid.Nil, fmt.Errorf("json: %w", err) + } + if !hmac.Equal([]byte(auth.Hash), []byte(expectedHash)) { + return uuid.Nil, errors.New("hash mismatch") + } + parsed, err := uuid.Parse(auth.Key) + if err != nil { + return uuid.Nil, fmt.Errorf("key not a UUID: %w", err) + } + return parsed, nil +} + +func uuidToBigInt(u uuid.UUID) *big.Int { + var n big.Int + return n.SetBytes(u[:]) +} diff --git a/runner/pkg/auth/auth_test.go b/runner/pkg/auth/auth_test.go new file mode 100644 index 0000000..3d98545 --- /dev/null +++ b/runner/pkg/auth/auth_test.go @@ -0,0 +1,258 @@ +package auth + +import ( + "crypto/hmac" + "crypto/rand" + "crypto/rsa" + "crypto/sha256" + "encoding/base64" + "encoding/hex" + "encoding/json" + "math/big" + "testing" + + "github.com/google/uuid" + + "github.com/nudgebee/nudgebee-agent/pkg/canonjson" +) + +func TestValidate_HMAC_Roundtrip(t *testing.T) { + v := &Validator{SigningKey: "test-signing-key"} + body := map[string]any{ + "action_name": "prometheus_queries_enricher", + "timestamp": int64(1700000000), + "action_params": map[string]any{"q": "up"}, + } + sig, err := signHMAC(v.SigningKey, body) + if err != nil { + t.Fatalf("signHMAC: %v", err) + } + if err := v.Validate(&Request{Body: body, Signature: sig}); err != nil { + t.Fatalf("Validate: %v", err) + } +} + +func TestValidate_HMAC_RejectsTamperedBody(t *testing.T) { + v := &Validator{SigningKey: "test-signing-key"} + body := map[string]any{"action_name": "x"} + sig, _ := signHMAC(v.SigningKey, body) + + tampered := map[string]any{"action_name": "y"} + if err := v.Validate(&Request{Body: tampered, Signature: sig}); err == nil { + t.Fatal("Validate: expected error for tampered body") + } +} + +func TestValidate_LightAction(t *testing.T) { + v := &Validator{LightActions: map[string]struct{}{"query_data": {}}} + + if err := v.Validate(&Request{ActionName: "query_data"}); err != nil { + t.Errorf("Validate(allowlisted): %v", err) + } + if err := v.Validate(&Request{ActionName: "delete_pod"}); err == nil { + t.Errorf("Validate(not allowlisted): expected error") + } +} + +func TestValidate_PartialKeys_Roundtrip(t *testing.T) { + priv, err := rsa.GenerateKey(rand.Reader, 2048) + if err != nil { + t.Fatalf("rsa.GenerateKey: %v", err) + } + + signingUUID := uuid.MustParse("12345678-1234-1234-1234-1234567890ab") + v := &Validator{ + SigningKey: signingUUID.String(), + PrivateKey: priv, + } + + body := map[string]any{ + "action_name": "delete_pod", + "timestamp": int64(1700000000), + "action_params": map[string]any{"pod": "foo"}, + } + + // Pick keyA, derive keyB so that keyA XOR keyB == signingUUID. + keyA := uuid.MustParse("aaaaaaaa-1111-2222-3333-bbbbbbbbcccc") + keyB := xorUUIDs(keyA, signingUUID) + + hash := bodyHash(t, body) + authA := encryptPartial(t, &priv.PublicKey, hash, keyA) + authB := encryptPartial(t, &priv.PublicKey, hash, keyB) + + if err := v.Validate(&Request{Body: body, PartialAuthA: authA, PartialAuthB: authB}); err != nil { + t.Fatalf("Validate: %v", err) + } +} + +func TestValidate_PartialKeys_RejectsBadXor(t *testing.T) { + priv, _ := rsa.GenerateKey(rand.Reader, 2048) + signingUUID := uuid.MustParse("12345678-1234-1234-1234-1234567890ab") + v := &Validator{SigningKey: signingUUID.String(), PrivateKey: priv} + + body := map[string]any{"action_name": "delete_pod"} + keyA := uuid.MustParse("aaaaaaaa-1111-2222-3333-bbbbbbbbcccc") + keyB := uuid.MustParse("ffffffff-ffff-ffff-ffff-ffffffffffff") // wrong — XOR != signingUUID + + hash := bodyHash(t, body) + authA := encryptPartial(t, &priv.PublicKey, hash, keyA) + authB := encryptPartial(t, &priv.PublicKey, hash, keyB) + + if err := v.Validate(&Request{Body: body, PartialAuthA: authA, PartialAuthB: authB}); err == nil { + t.Fatal("Validate: expected error for bad XOR") + } +} + +// Cover the early-return guards that the happy-path tests skip past. + +func TestValidate_HMAC_NoSigningKey(t *testing.T) { + v := &Validator{} // SigningKey empty + if err := v.Validate(&Request{Body: map[string]any{"a": 1}, Signature: "v0=deadbeef"}); err == nil { + t.Error("expected error when signing key not configured") + } +} + +func TestValidate_PartialKeys_NoPrivateKey(t *testing.T) { + v := &Validator{SigningKey: "x"} // PrivateKey nil + if err := v.Validate(&Request{Body: map[string]any{}, PartialAuthA: "a", PartialAuthB: "b"}); err == nil { + t.Error("expected error when private key not configured") + } +} + +func TestValidate_PartialKeys_NoSigningKey(t *testing.T) { + priv, _ := rsa.GenerateKey(rand.Reader, 2048) + v := &Validator{PrivateKey: priv} // SigningKey empty + if err := v.Validate(&Request{Body: map[string]any{}, PartialAuthA: "a", PartialAuthB: "b"}); err == nil { + t.Error("expected error when signing key not configured") + } +} + +func TestValidate_PartialKeys_OneSideMissing(t *testing.T) { + priv, _ := rsa.GenerateKey(rand.Reader, 2048) + v := &Validator{SigningKey: uuid.NewString(), PrivateKey: priv} + // Only auth A present; auth B empty. + if err := v.Validate(&Request{Body: map[string]any{}, PartialAuthA: "x", PartialAuthB: ""}); err == nil { + t.Error("expected error when one partial-auth side is missing (validatePartialKeys path)") + } +} + +func TestValidate_PartialKeys_BadBase64(t *testing.T) { + priv, _ := rsa.GenerateKey(rand.Reader, 2048) + v := &Validator{SigningKey: uuid.NewString(), PrivateKey: priv} + err := v.Validate(&Request{ + Body: map[string]any{}, + PartialAuthA: "!!!not-base64!!!", + PartialAuthB: "!!!not-base64!!!", + }) + if err == nil { + t.Error("expected error for non-base64 ciphertext") + } +} + +func TestValidate_PartialKeys_GarbledCiphertext(t *testing.T) { + priv, _ := rsa.GenerateKey(rand.Reader, 2048) + v := &Validator{SigningKey: uuid.NewString(), PrivateKey: priv} + // Valid base64 but not a valid OAEP ciphertext. + err := v.Validate(&Request{ + Body: map[string]any{}, + PartialAuthA: "AAAA", + PartialAuthB: "AAAA", + }) + if err == nil { + t.Error("expected error for garbled ciphertext") + } +} + +func TestValidate_PartialKeys_BadSigningKeyUUID(t *testing.T) { + priv, _ := rsa.GenerateKey(rand.Reader, 2048) + v := &Validator{SigningKey: "not-a-uuid", PrivateKey: priv} + + // Construct VALID partials (so we hit the signing-key parse error + // path rather than getting rejected earlier). + body := map[string]any{"action_name": "x"} + hash := bodyHash(t, body) + keyA := uuid.MustParse("aaaaaaaa-1111-2222-3333-bbbbbbbbcccc") + keyB := uuid.MustParse("aaaaaaaa-1111-2222-3333-bbbbbbbbcccc") // any UUID; we want to fail before XOR check + authA := encryptPartial(t, &priv.PublicKey, hash, keyA) + authB := encryptPartial(t, &priv.PublicKey, hash, keyB) + + if err := v.Validate(&Request{Body: body, PartialAuthA: authA, PartialAuthB: authB}); err == nil { + t.Error("expected error for non-UUID signing key") + } +} + +func TestValidate_LightAction_DisabledWhenAllowlistNil(t *testing.T) { + v := &Validator{} + if err := v.Validate(&Request{ActionName: "anything"}); err == nil { + t.Error("expected error when light-action allowlist not configured") + } +} + +func TestValidate_PartialKeys_RejectsBadHash(t *testing.T) { + priv, _ := rsa.GenerateKey(rand.Reader, 2048) + signingUUID := uuid.MustParse("12345678-1234-1234-1234-1234567890ab") + v := &Validator{SigningKey: signingUUID.String(), PrivateKey: priv} + + body := map[string]any{"action_name": "delete_pod"} + keyA := uuid.MustParse("aaaaaaaa-1111-2222-3333-bbbbbbbbcccc") + keyB := xorUUIDs(keyA, signingUUID) + + wrongHash := "v0=deadbeef" + authA := encryptPartial(t, &priv.PublicKey, wrongHash, keyA) + authB := encryptPartial(t, &priv.PublicKey, wrongHash, keyB) + + if err := v.Validate(&Request{Body: body, PartialAuthA: authA, PartialAuthB: authB}); err == nil { + t.Fatal("Validate: expected error for bad hash") + } +} + +// signHMAC mirrors sign_action_request: build +// "v0:" + canonjson.EncodeForSignature(body), HMAC-SHA256, prefix "v0=". +func signHMAC(signingKey string, body any) (string, error) { + encoded, err := canonjson.EncodeForSignature(body) + if err != nil { + return "", err + } + mac := hmac.New(sha256.New, []byte(signingKey)) + mac.Write([]byte("v0:")) + mac.Write(encoded) + return "v0=" + hex.EncodeToString(mac.Sum(nil)), nil +} + +func bodyHash(t *testing.T, body any) string { + t.Helper() + encoded, err := canonjson.Encode(body) + if err != nil { + t.Fatalf("canonjson.Encode: %v", err) + } + sum := sha256.Sum256(encoded) + return "v0=" + hex.EncodeToString(sum[:]) +} + +func encryptPartial(t *testing.T, pub *rsa.PublicKey, hash string, key uuid.UUID) string { + t.Helper() + payload, err := json.Marshal(map[string]any{ + "hash": hash, + "key": key.String(), + }) + if err != nil { + t.Fatalf("json.Marshal: %v", err) + } + ct, err := rsa.EncryptOAEP(sha256.New(), rand.Reader, pub, payload, nil) + if err != nil { + t.Fatalf("rsa.EncryptOAEP: %v", err) + } + return base64.StdEncoding.EncodeToString(ct) +} + +func xorUUIDs(a, b uuid.UUID) uuid.UUID { + aInt := new(big.Int).SetBytes(a[:]) + bInt := new(big.Int).SetBytes(b[:]) + xored := new(big.Int).Xor(aInt, bInt) + + var out uuid.UUID + xb := xored.Bytes() + // Left-pad to 16 bytes. + copy(out[16-len(xb):], xb) + return out +} diff --git a/runner/pkg/auth/loadkey_test.go b/runner/pkg/auth/loadkey_test.go new file mode 100644 index 0000000..01b658b --- /dev/null +++ b/runner/pkg/auth/loadkey_test.go @@ -0,0 +1,79 @@ +package auth + +import ( + "crypto/rand" + "crypto/rsa" + "crypto/x509" + "encoding/pem" + "os" + "path/filepath" + "testing" +) + +func writePEM(t *testing.T, blockType string, der []byte) string { + t.Helper() + dir := t.TempDir() + p := filepath.Join(dir, "key.pem") + f, err := os.Create(p) + if err != nil { + t.Fatal(err) + } + defer func() { _ = f.Close() }() + if err := pem.Encode(f, &pem.Block{Type: blockType, Bytes: der}); err != nil { + t.Fatal(err) + } + return p +} + +func TestLoadPrivateKey_PKCS1(t *testing.T) { + key, _ := rsa.GenerateKey(rand.Reader, 2048) + der := x509.MarshalPKCS1PrivateKey(key) + path := writePEM(t, "RSA PRIVATE KEY", der) + + got, err := LoadPrivateKey(path) + if err != nil { + t.Fatal(err) + } + if got.N.Cmp(key.N) != 0 { + t.Error("loaded key does not match") + } +} + +func TestLoadPrivateKey_PKCS8(t *testing.T) { + key, _ := rsa.GenerateKey(rand.Reader, 2048) + der, err := x509.MarshalPKCS8PrivateKey(key) + if err != nil { + t.Fatal(err) + } + path := writePEM(t, "PRIVATE KEY", der) + + got, err := LoadPrivateKey(path) + if err != nil { + t.Fatal(err) + } + if got.N.Cmp(key.N) != 0 { + t.Error("loaded key does not match") + } +} + +func TestLoadPrivateKey_FileNotFound(t *testing.T) { + if _, err := LoadPrivateKey("/no/such/file"); err == nil { + t.Error("expected error for missing file") + } +} + +func TestLoadPrivateKey_NotPEM(t *testing.T) { + dir := t.TempDir() + p := filepath.Join(dir, "notpem.pem") + _ = os.WriteFile(p, []byte("not-a-pem-file"), 0o644) + if _, err := LoadPrivateKey(p); err == nil { + t.Error("expected error for non-PEM file") + } +} + +func TestLoadPrivateKey_UnsupportedBlockType(t *testing.T) { + path := writePEM(t, "EC PRIVATE KEY", []byte("ignored")) + if _, err := LoadPrivateKey(path); err == nil { + t.Error("expected error for EC PRIVATE KEY block type") + } +} diff --git a/runner/pkg/canonjson/canonjson.go b/runner/pkg/canonjson/canonjson.go new file mode 100644 index 0000000..1bed65c --- /dev/null +++ b/runner/pkg/canonjson/canonjson.go @@ -0,0 +1,209 @@ +// Package canonjson produces a byte-for-byte canonical JSON encoding that +// matches Python's +// +// json.dumps(obj, sort_keys=True, separators=(",", ":"), ensure_ascii=True) +// +// applied after Pydantic's exclude_none=True filter. This encoder exists for +// one reason: the protocol HMAC signature is computed over exactly those +// bytes, and the Go agent's auth check must regenerate the same bytes or +// every signed request fails. +// +// Differences vs Go's encoding/json that this package fixes: +// - object keys are sorted lexicographically by Unicode code point +// - nil entries inside maps are dropped (matches Pydantic exclude_none) +// - non-ASCII characters are escaped as \uXXXX (Python ensure_ascii=True +// default; Go's encoder emits raw UTF-8) +// - HTML escapes (<, >, &) are NOT applied (Go's encoder escapes them by +// default; Python does not) +// - whole-number floats keep a ".0" suffix (1.0 → "1.0", not "1") +package canonjson + +import ( + "bytes" + "errors" + "fmt" + "math" + "sort" + "strconv" + "unicode/utf8" +) + +// Encode returns the canonical JSON encoding of v with no whitespace between +// members or key/value pairs — matching Python's +// +// json.dumps(v, sort_keys=True, separators=(",", ":"), ensure_ascii=True) +// +// This form is used for the partial-keys body hash. +// +// Supported types: nil, bool, all sized int/uint/float types, string, +// []any, map[string]any. Structs are rejected; convert via json.Marshal+Unmarshal +// first if you have one. +func Encode(v any) ([]byte, error) { + return encodeWith(v, ",", ":") +} + +// EncodeForSignature returns the canonical JSON encoding of v with Python's +// default separators (", " and ": ") — matching +// +// json.dumps(v, sort_keys=True, ensure_ascii=True) # default separators +// +// This form is used for the HMAC signature path (sign_action_request line 40, +// which omits the separators argument). The sign payload is built as +// `v0:` + EncodeForSignature(body), HMAC'd, and prefixed `v0=`. +func EncodeForSignature(v any) ([]byte, error) { + return encodeWith(v, ", ", ": ") +} + +func encodeWith(v any, itemSep, kvSep string) ([]byte, error) { + var buf bytes.Buffer + enc := encoder{itemSep: itemSep, kvSep: kvSep} + if err := enc.encode(&buf, v); err != nil { + return nil, err + } + return buf.Bytes(), nil +} + +type encoder struct { + itemSep string + kvSep string +} + +func (e *encoder) encode(buf *bytes.Buffer, v any) error { + switch x := v.(type) { + case nil: + buf.WriteString("null") + case bool: + if x { + buf.WriteString("true") + } else { + buf.WriteString("false") + } + case string: + writeString(buf, x) + case int: + buf.WriteString(strconv.FormatInt(int64(x), 10)) + case int8: + buf.WriteString(strconv.FormatInt(int64(x), 10)) + case int16: + buf.WriteString(strconv.FormatInt(int64(x), 10)) + case int32: + buf.WriteString(strconv.FormatInt(int64(x), 10)) + case int64: + buf.WriteString(strconv.FormatInt(x, 10)) + case uint: + buf.WriteString(strconv.FormatUint(uint64(x), 10)) + case uint8: + buf.WriteString(strconv.FormatUint(uint64(x), 10)) + case uint16: + buf.WriteString(strconv.FormatUint(uint64(x), 10)) + case uint32: + buf.WriteString(strconv.FormatUint(uint64(x), 10)) + case uint64: + buf.WriteString(strconv.FormatUint(x, 10)) + case float32: + return writeFloat(buf, float64(x)) + case float64: + return writeFloat(buf, x) + case []any: + return e.writeArray(buf, x) + case map[string]any: + return e.writeObject(buf, x) + default: + return fmt.Errorf("canonjson: unsupported type %T", v) + } + return nil +} + +func (e *encoder) writeArray(buf *bytes.Buffer, a []any) error { + buf.WriteByte('[') + for i, item := range a { + if i > 0 { + buf.WriteString(e.itemSep) + } + if err := e.encode(buf, item); err != nil { + return err + } + } + buf.WriteByte(']') + return nil +} + +func (e *encoder) writeObject(buf *bytes.Buffer, m map[string]any) error { + keys := make([]string, 0, len(m)) + for k, v := range m { + if v == nil { + continue // exclude_none + } + keys = append(keys, k) + } + sort.Strings(keys) + + buf.WriteByte('{') + for i, k := range keys { + if i > 0 { + buf.WriteString(e.itemSep) + } + writeString(buf, k) + buf.WriteString(e.kvSep) + if err := e.encode(buf, m[k]); err != nil { + return err + } + } + buf.WriteByte('}') + return nil +} + +func writeFloat(buf *bytes.Buffer, f float64) error { + if math.IsNaN(f) || math.IsInf(f, 0) { + return errors.New("canonjson: NaN/Inf not representable in strict JSON") + } + // Python's json.dumps uses float.__repr__, which is the shortest string + // that round-trips. Go's strconv.FormatFloat(f, 'g', -1, 64) is also + // shortest-round-trip but drops the trailing ".0" for whole numbers. + // Add it back when there is no decimal point and no exponent. + s := strconv.FormatFloat(f, 'g', -1, 64) + if !bytes.ContainsAny([]byte(s), ".eE") { + s += ".0" + } + buf.WriteString(s) + return nil +} + +// writeString emits a JSON string literal matching Python's json.dumps with +// ensure_ascii=True. +func writeString(buf *bytes.Buffer, s string) { + buf.WriteByte('"') + for i := 0; i < len(s); { + r, size := utf8.DecodeRuneInString(s[i:]) + switch { + case r == '"': + buf.WriteString(`\"`) + case r == '\\': + buf.WriteString(`\\`) + case r == '\b': + buf.WriteString(`\b`) + case r == '\f': + buf.WriteString(`\f`) + case r == '\n': + buf.WriteString(`\n`) + case r == '\r': + buf.WriteString(`\r`) + case r == '\t': + buf.WriteString(`\t`) + case r < 0x20: + fmt.Fprintf(buf, `\u%04x`, r) + case r < 0x7f: + buf.WriteByte(byte(r)) + case r >= 0x10000: + // Encode as UTF-16 surrogate pair. + r -= 0x10000 + hi := 0xd800 + (r >> 10) + lo := 0xdc00 + (r & 0x3ff) + fmt.Fprintf(buf, `\u%04x\u%04x`, hi, lo) + default: + fmt.Fprintf(buf, `\u%04x`, r) + } + i += size + } + buf.WriteByte('"') +} diff --git a/runner/pkg/canonjson/canonjson_test.go b/runner/pkg/canonjson/canonjson_test.go new file mode 100644 index 0000000..a274dbd --- /dev/null +++ b/runner/pkg/canonjson/canonjson_test.go @@ -0,0 +1,170 @@ +package canonjson + +import ( + "math" + "testing" +) + +// Each test case's `want` is what Python emits via: +// +// json.dumps(obj, sort_keys=True, separators=(",", ":"), ensure_ascii=True) +// +// after dropping nil entries (Pydantic exclude_none=True). The Python equivalent +// of the Go input is shown in a comment alongside each case so a reviewer can +// verify by running it. The cross-language fixture suite +// will replace these with auto-generated fixtures when it lands. +func TestEncode(t *testing.T) { + // Build the want strings byte-by-byte for any case where the literal + // would be interpreted as a Unicode escape by source-level tooling. + // `bs` is a single backslash; this avoids `\u...` sequences inside + // raw-string literals being mistaken for escapes. + bs := "\\" + wantCtrl01 := `"` + bs + `u0001"` + wantCtrl1f := `"` + bs + `u001f"` + wantLatinE := `"` + bs + `u00e9"` + wantCJK := `"` + bs + `u65e5` + bs + `u672c` + bs + `u8a9e"` + wantEmojiSurrogate := `"` + bs + `ud83d` + bs + `ude00"` + + cases := []struct { + name string + in any + want string + }{ + // Primitives + {"nil", nil, `null`}, + {"true", true, `true`}, + {"false", false, `false`}, + {"int_zero", 0, `0`}, + {"int_pos", 42, `42`}, + {"int_neg", -7, `-7`}, + {"int64_max", int64(9223372036854775807), `9223372036854775807`}, + {"uint64_max", uint64(18446744073709551615), `18446744073709551615`}, + + // Float — Python preserves trailing .0 for whole-number floats. + // json.dumps(1.0) => '1.0' (NOT '1') + // json.dumps(1) => '1' + {"float_one", 1.0, `1.0`}, + {"float_zero", 0.0, `0.0`}, + {"float_neg_one", -1.0, `-1.0`}, + {"float_tenth", 0.1, `0.1`}, + {"float_small", 1e-7, `1e-07`}, + {"float_large", 1e16, `1e+16`}, + + // String basics + {"str_empty", "", `""`}, + {"str_ascii", "hello", `"hello"`}, + // json.dumps('a"b\\c') => '"a\\"b\\\\c"' + {"str_quote_backslash", `a"b\c`, `"a\"b\\c"`}, + // json.dumps('\b\f\n\r\t') => '"\\b\\f\\n\\r\\t"' + {"str_short_escapes", "\b\f\n\r\t", `"\b\f\n\r\t"`}, + // Other control chars: json.dumps('\x01') => '"\\u0001"' + {"str_ctrl_low", "\x01", wantCtrl01}, + {"str_ctrl_x1f", "\x1f", wantCtrl1f}, + + // Non-ASCII — ensure_ascii=True escapes everything >= 0x80. + // json.dumps('é') => '"\\u00e9"' + {"str_latin", "é", wantLatinE}, + // json.dumps('日本語') => '"\\u65e5\\u672c\\u8a9e"' + {"str_cjk", "日本語", wantCJK}, + // json.dumps('\U0001f600') => '"\\ud83d\\ude00"' (surrogate pair) + {"str_emoji_surrogate", "\U0001f600", wantEmojiSurrogate}, + + // Python does NOT HTML-escape <, >, &; Go's encoding/json default does. + // We must NOT escape them. + {"str_html_unescaped", "&", `"&"`}, + + // Arrays + {"arr_empty", []any{}, `[]`}, + {"arr_mixed", []any{1, "x", true, nil}, `[1,"x",true,null]`}, + // Nil entries inside arrays are kept as null (only map entries are dropped). + {"arr_with_nil", []any{nil, 1, nil}, `[null,1,null]`}, + + // Objects — keys sorted by Unicode code point, no whitespace. + {"obj_empty", map[string]any{}, `{}`}, + // json.dumps({"b":1,"a":2}, sort_keys=True, separators=(",",":")) => '{"a":2,"b":1}' + {"obj_sorted", map[string]any{"b": 1, "a": 2}, `{"a":2,"b":1}`}, + // exclude_none drops the "x" entry. + {"obj_drops_nil", map[string]any{"a": 1, "x": nil, "b": 2}, `{"a":1,"b":2}`}, + // Sort is by Unicode code point: uppercase letters precede lowercase. + {"obj_codepoint_sort", map[string]any{"a": 1, "Z": 2, "B": 3}, `{"B":3,"Z":2,"a":1}`}, + // Nested: still no whitespace; child keys also sorted. + { + "obj_nested", + map[string]any{ + "outer": map[string]any{"y": 2, "x": 1}, + "list": []any{1, 2, 3}, + }, + `{"list":[1,2,3],"outer":{"x":1,"y":2}}`, + }, + + // Realistic body shape. + { + "action_request_body", + map[string]any{ + "action_name": "prometheus_queries_enricher", + "timestamp": int64(1700000000), + "action_params": map[string]any{"query": "up", "duration": int64(60)}, + "sinks": nil, // dropped + "origin": "services-server", + }, + `{"action_name":"prometheus_queries_enricher","action_params":{"duration":60,"query":"up"},"origin":"services-server","timestamp":1700000000}`, + }, + } + + for _, c := range cases { + t.Run(c.name, func(t *testing.T) { + got, err := Encode(c.in) + if err != nil { + t.Fatalf("Encode(%v) error: %v", c.in, err) + } + if string(got) != c.want { + t.Errorf("Encode(%v)\n got: %s\n want: %s", c.in, got, c.want) + } + }) + } +} + +// EncodeForSignature uses Python's default separators (", " and ": "). +// Verified against: +// +// json.dumps(obj, sort_keys=True) # default separators +// +// (no separators argument), as in sign_action_request line 40. +func TestEncodeForSignature(t *testing.T) { + cases := []struct { + name string + in any + want string + }{ + {"obj_simple", map[string]any{"a": 1, "b": 2}, `{"a": 1, "b": 2}`}, + {"arr_simple", []any{1, 2, 3}, `[1, 2, 3]`}, + {"nested", map[string]any{"action_name": "x", "action_params": map[string]any{"q": "up"}}, + `{"action_name": "x", "action_params": {"q": "up"}}`}, + } + for _, c := range cases { + t.Run(c.name, func(t *testing.T) { + got, err := EncodeForSignature(c.in) + if err != nil { + t.Fatalf("EncodeForSignature error: %v", err) + } + if string(got) != c.want { + t.Errorf("EncodeForSignature(%v)\n got: %s\n want: %s", c.in, got, c.want) + } + }) + } +} + +func TestEncodeRejectsNaNInf(t *testing.T) { + for _, in := range []any{math.NaN(), math.Inf(1), math.Inf(-1)} { + if _, err := Encode(in); err == nil { + t.Errorf("Encode(%v) = no error; want error", in) + } + } +} + +func TestEncodeRejectsUnsupportedType(t *testing.T) { + type myStruct struct{ X int } + if _, err := Encode(myStruct{X: 1}); err == nil { + t.Error("Encode(struct) = no error; want error (structs must be converted to map first)") + } +} diff --git a/runner/pkg/clickhouse/client.go b/runner/pkg/clickhouse/client.go new file mode 100644 index 0000000..7bb02bc --- /dev/null +++ b/runner/pkg/clickhouse/client.go @@ -0,0 +1,218 @@ +// Package clickhouse is a thin HTTP client for the ClickHouse query interface. +// We use the HTTP API (port 8123 default) rather than the native binary +// protocol so we can stay on net/http and avoid pulling in clickhouse-go. +// +// We translate JSONCompact responses into the +// {data, columns, column_types, error} shape that backend callers expect. +package clickhouse + +import ( + "bytes" + "context" + "encoding/json" + "fmt" + "io" + "net/http" + "net/url" + "strconv" + "strings" + "time" +) + +// Client is a ClickHouse HTTP client. Concurrency-safe via the underlying http.Client. +type Client struct { + BaseURL string + User string + Password string + Database string + HTTP *http.Client +} + +// Config carries the env-derived settings. +type Config struct { + Host string // CLICKHOUSE_HOST (default "localhost"); may include "host:port" or a URL + Port int // CLICKHOUSE_PORT (default 8123) + User string // CLICKHOUSE_USER + Password string // CLICKHOUSE_PASSWORD + Database string // CLICKHOUSE_DB (default "default") + SSLEnabled bool // CLICKHOUSE_SSL_ENABLED +} + +// New builds a Client from Config. Returns nil if Host is empty so callers +// can treat unconfigured CH as "feature off". +// +// Scheme picking: if Host already includes a scheme ("https://…"), we honour +// it. Otherwise SSLEnabled flips http→https. Matches the legacy behaviour +// when CLICKHOUSE_HOST is set to a URL vs a bare host. +func New(cfg Config) *Client { + scheme, host, port := normalizeHost(cfg.Host, cfg.Port) + if host == "" { + return nil + } + if scheme == "" { + scheme = "http" + if cfg.SSLEnabled { + scheme = "https" + } + } + db := cfg.Database + if db == "" { + db = "default" + } + return &Client{ + BaseURL: fmt.Sprintf("%s://%s:%d", scheme, host, port), + User: cfg.User, + Password: cfg.Password, + Database: db, + HTTP: &http.Client{Timeout: 60 * time.Second}, + } +} + +// QueryResult mirrors the QueryResult wire shape. All four fields are +// emitted unconditionally so callers can distinguish empty rows from a +// missing field. +type QueryResult struct { + Data [][]any `json:"data"` + Columns []string `json:"columns"` + ColumnTypes []string `json:"column_types"` + Error *string `json:"error"` +} + +// Query runs the SQL via /?database=...&user=...&password=... POST. The +// legacy equivalent is db.run_query(query, values). `values` (positional +// bind params) are spliced into the query the same way clickhouse-connect +// does — we accept them but rely on ClickHouse's parameterized-query +// support via param_. +// +// For simplicity here we don't expand values (api-server's caller never sends +// any, the query is already final SQL by the time it reaches us). Empty +// `values` slice is the common case; we error if non-empty. +func (c *Client) Query(ctx context.Context, query string, values []any) (*QueryResult, error) { + if c == nil { + return errResult("clickhouse: not configured"), nil + } + if len(values) > 0 { + return errResult("clickhouse: parameterized values not supported by HTTP client"), nil + } + q := strings.TrimSpace(query) + if q == "" { + return errResult("clickhouse: empty query"), nil + } + // Append FORMAT JSONCompact unless the caller already has one. JSONCompact + // gives us {meta:[{name,type}], data:[[...]], rows:N} which we map directly. + if !strings.Contains(strings.ToUpper(q), "FORMAT ") { + q += " FORMAT JSONCompact" + } + + v := url.Values{} + v.Set("database", c.Database) + if c.User != "" { + v.Set("user", c.User) + } + if c.Password != "" { + v.Set("password", c.Password) + } + endpoint := c.BaseURL + "/?" + v.Encode() + + req, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, bytes.NewBufferString(q)) + if err != nil { + return nil, err + } + req.Header.Set("Content-Type", "text/plain; charset=utf-8") + + resp, err := c.HTTP.Do(req) + if err != nil { + // Connection-level errors surface as a result.error so callers see a + // uniform shape even when the host is unreachable. + return errResult(fmt.Sprintf("clickhouse: %v", err)), nil + } + defer func() { _ = resp.Body.Close() }() + body, _ := io.ReadAll(resp.Body) + if resp.StatusCode >= 400 { + return errResult(fmt.Sprintf("clickhouse: HTTP %d: %s", resp.StatusCode, truncate(string(body), 1024))), nil + } + + var raw struct { + Meta []struct { + Name string `json:"name"` + Type string `json:"type"` + } `json:"meta"` + Data [][]any `json:"data"` + } + if err := json.Unmarshal(body, &raw); err != nil { + return errResult(fmt.Sprintf("clickhouse: parse JSONCompact: %v", err)), nil + } + out := &QueryResult{ + Data: raw.Data, + Columns: make([]string, len(raw.Meta)), + ColumnTypes: make([]string, len(raw.Meta)), + } + for i, m := range raw.Meta { + out.Columns[i] = m.Name + // `column_types` maps to ClickHouse's base_type which strips + // nullable wrapping (e.g. "Int32" not "Nullable(Int32)"). + out.ColumnTypes[i] = baseType(m.Type) + } + return out, nil +} + +// errResult wraps a string error in a QueryResult so the wire shape is uniform. +func errResult(msg string) *QueryResult { + s := msg + return &QueryResult{ + Data: [][]any{}, + Columns: []string{}, + ColumnTypes: []string{}, + Error: &s, + } +} + +// baseType strips the "Nullable(...)" wrapper. Mirrors clickhouse-connect's +// ColumnType.base_type. +func baseType(t string) string { + if strings.HasPrefix(t, "Nullable(") && strings.HasSuffix(t, ")") { + return t[len("Nullable(") : len(t)-1] + } + return t +} + +// normalizeHost handles the URL-or-host-port shapes accepted. host can be: +// - "host" +// - "host:port" +// - "http://host:port" / "https://..." +// +// Returns the scheme (empty if not in input), bare hostname, and resolved port. +func normalizeHost(host string, defaultPort int) (string, string, int) { + if host == "" { + return "", "", 0 + } + if defaultPort == 0 { + defaultPort = 8123 + } + if strings.Contains(host, "://") { + u, err := url.Parse(host) + if err == nil { + h := u.Hostname() + if u.Port() != "" { + p, _ := strconv.Atoi(u.Port()) + return u.Scheme, h, p + } + return u.Scheme, h, defaultPort + } + } + if i := strings.LastIndex(host, ":"); i > 0 { + h := host[:i] + p, err := strconv.Atoi(host[i+1:]) + if err == nil { + return "", h, p + } + } + return "", host, defaultPort +} + +func truncate(s string, n int) string { + if len(s) <= n { + return s + } + return s[:n] + "…" +} diff --git a/runner/pkg/clickhouse/client_test.go b/runner/pkg/clickhouse/client_test.go new file mode 100644 index 0000000..815f7d5 --- /dev/null +++ b/runner/pkg/clickhouse/client_test.go @@ -0,0 +1,111 @@ +package clickhouse + +import ( + "context" + "net/http" + "net/http/httptest" + "strings" + "testing" +) + +// TestQuery_HappyPath verifies that the HTTP body is the SQL string with +// FORMAT JSONCompact appended, query-string carries db/user/password, and +// the response maps cleanly to QueryResult{data, columns, column_types}. +func TestQuery_HappyPath(t *testing.T) { + var got struct { + body string + path string + } + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + buf := make([]byte, 4096) + n, _ := r.Body.Read(buf) + got.body = string(buf[:n]) + got.path = r.URL.RawQuery + w.Header().Set("Content-Type", "application/json") + _, _ = w.Write([]byte(`{"meta":[{"name":"count","type":"UInt64"}],"data":[[42]]}`)) + })) + defer srv.Close() + + c := New(Config{Host: strings.TrimPrefix(srv.URL, "http://"), User: "u", Password: "p", Database: "d"}) + if c == nil { + t.Fatal("New returned nil") + } + res, err := c.Query(context.Background(), "SELECT count() FROM t", nil) + if err != nil { + t.Fatal(err) + } + if res.Error != nil { + t.Errorf("error = %q; want nil", *res.Error) + } + if len(res.Data) != 1 || res.Columns[0] != "count" || res.ColumnTypes[0] != "UInt64" { + t.Errorf("unexpected result: %+v", res) + } + if !strings.Contains(got.body, "FORMAT JSONCompact") { + t.Errorf("expected FORMAT JSONCompact appended; body = %q", got.body) + } + if !strings.Contains(got.path, "database=d") || !strings.Contains(got.path, "user=u") { + t.Errorf("query string missing creds: %q", got.path) + } +} + +// TestQuery_ErrorsAreReportedAsResultError checks that connection-level errors +// surface as result.error rather than a Go error. api-server callers expect a +// uniform shape. +func TestQuery_ConnectionErrorAsResultError(t *testing.T) { + c := &Client{BaseURL: "http://127.0.0.1:1", Database: "d", HTTP: &http.Client{}} + res, err := c.Query(context.Background(), "SELECT 1", nil) + if err != nil { + t.Fatalf("unexpected Go error: %v", err) + } + if res.Error == nil { + t.Fatal("expected result.error; got nil") + } +} + +func TestQuery_HTTPErrorAsResultError(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + http.Error(w, "Code: 47. DB::Exception: Unknown table", 500) + })) + defer srv.Close() + c := New(Config{Host: strings.TrimPrefix(srv.URL, "http://"), Database: "d"}) + res, _ := c.Query(context.Background(), "SELECT * FROM nope", nil) + if res.Error == nil { + t.Fatal("expected result.error for HTTP 500") + } + if !strings.Contains(*res.Error, "HTTP 500") { + t.Errorf("error doesn't mention HTTP 500: %q", *res.Error) + } +} + +func TestNew_NormalizesHostAndPort(t *testing.T) { + cases := []struct { + host, want string + }{ + {"clickhouse.svc:9000", "http://clickhouse.svc:9000"}, + {"https://example.com:8443", "https://example.com:8443"}, + {"clickhouse.svc", "http://clickhouse.svc:8123"}, + } + for _, c := range cases { + got := New(Config{Host: c.host}).BaseURL + if got != c.want { + t.Errorf("New(host=%q).BaseURL = %q; want %q", c.host, got, c.want) + } + } +} + +func TestQuery_ParameterizedRejected(t *testing.T) { + c := New(Config{Host: "h"}) + res, _ := c.Query(context.Background(), "SELECT 1", []any{1, 2}) + if res.Error == nil || !strings.Contains(*res.Error, "parameterized") { + t.Errorf("expected parameterized-rejection error; got %+v", res.Error) + } +} + +func TestBaseTypeStripsNullable(t *testing.T) { + if baseType("Nullable(Int32)") != "Int32" { + t.Error("baseType failed to strip Nullable") + } + if baseType("UInt64") != "UInt64" { + t.Error("baseType modified bare type") + } +} diff --git a/runner/pkg/config/config.go b/runner/pkg/config/config.go new file mode 100644 index 0000000..251998d --- /dev/null +++ b/runner/pkg/config/config.go @@ -0,0 +1,277 @@ +// Package config loads agent configuration from environment variables. +// +// Env vars (chart-compatibility names): +// +// NUDGEBEE_AUTH_SECRET_KEY - shared secret for relay Basic-Auth and HMAC +// WEBSOCKET_RELAY_ADDRESS - relay /register URL (ws:// or wss://) +// NUDGEBEE_ENDPOINT - backend HTTP base URL (for discovery/alert forward) +// ACCOUNT_ID - tenant account id (sent in greeting; informational) +// CLUSTER_NAME - cluster name (informational) +package config + +import ( + "errors" + "net/http" + "os" + "strconv" + "strings" + "time" +) + +type Config struct { + AuthSecretKey string + RelayURL string + BackendEndpoint string + AccountID string + ClusterName string + + // Optional datasource URLs. Empty = subsystem disabled. + PrometheusURL string + PrometheusHeaders string // raw "Header: value" string, parsed into http.Header + LokiURL string + LokiHeaders string + + // Elasticsearch + ElasticsearchURL string + ElasticsearchUser string + ElasticsearchPassword string + ElasticsearchAPIKey string + + // Signoz + SignozURL string + SignozAPIKey string + + // Jaeger + JaegerURL string + + // Chronosphere + ChronosphereURL string + ChronosphereAPIKey string + + // Pinot + PinotURL string + PinotAuthToken string // optional Bearer token + PinotUsername string // optional Basic-Auth + PinotPassword string + + // HTTP proxy targets — semicolon-delimited "name=url" pairs. + // Example: "grafana=http://grafana:3000;datadog=https://api.datadoghq.com" + // Use "*=ignored" to opt into explicit-URL targets (security risk; off by default). + HTTPProxyTargets string + + // Loki rules HTTP API URL (separate from LOKI_URL which is for queries). + LokiRulesURL string + + // GCP — enables gke_logs + gke_traces. Auth via ADC / Workload Identity. + GCPEnabled bool + GCPProjectID string + + // HTTP server (alerts intake + healthz). Default :5000. + HTTPListenAddr string + + // Discovery: enabled when DiscoveryEnabled=true. Resync interval is + // DISCOVERY_RESYNC (default 30m); KUBECONFIG env is honoured by client-go. + DiscoveryEnabled bool + DiscoveryResync time.Duration + // AlertRulesInterval is how often the agent pushes Prometheus alert + // rules (api/v1/rules + PrometheusRule CRDs) to the collector's + // /v1/k8s/discovery endpoint. Gated by DiscoveryEnabled (same toggle + // that controls the rest of the discovery push loop). + AlertRulesInterval time.Duration + + // Kube primitives (group B): enabled when KubeEnabled=true. Independent + // of discovery so an operator can run primitives-only without paying + // for the full informer cache. + KubeEnabled bool + + // Scanners (group F): enabled when ScannersEnabled=true. Needs a + // namespace + service account that Trivy/Popeye/KRR/etc. can run as. + ScannersEnabled bool + ScannerNamespace string + ScannerServiceAccount string + + // PodExecEnabled (group D): pod_bash_enricher / pod_script_run_enricher. + // MUST be paired with RSA partial-keys auth in production. + PodExecEnabled bool + + // MutateEnabled (group D): delete_pod / cordon / uncordon / rollout_restart. + // MUST be paired with RSA partial-keys auth in production. + MutateEnabled bool + AlertManagerURL string + + // RSA private key for the partial-keys auth path. PEM-encoded file path. + // When unset, partial-keys auth is disabled — mutate/podexec actions + // fall back to HMAC signature only. + RSAPrivateKeyPath string + + // ClickHouse — backs the `query_data` action. The chart sets these from + // the in-cluster ClickHouse Service the agent ships alongside. + ClickHouseEnabled bool + ClickHouseHost string + ClickHousePort int + ClickHouseUser string + ClickHousePassword string + ClickHouseDB string + ClickHouseSSL bool +} + +// FromEnv reads config from env vars and returns it. Missing required fields +// produce an error; missing optional fields are left blank. +func FromEnv() (*Config, error) { + c := &Config{ + AuthSecretKey: os.Getenv("NUDGEBEE_AUTH_SECRET_KEY"), + RelayURL: os.Getenv("WEBSOCKET_RELAY_ADDRESS"), + BackendEndpoint: os.Getenv("NUDGEBEE_ENDPOINT"), + AccountID: os.Getenv("ACCOUNT_ID"), + ClusterName: os.Getenv("CLUSTER_NAME"), + PrometheusURL: os.Getenv("PROMETHEUS_URL"), + PrometheusHeaders: os.Getenv("PROMETHEUS_HEADERS"), // matches runner.yaml secret + LokiURL: os.Getenv("LOKI_URL"), + LokiHeaders: os.Getenv("LOKI_EXTRA_HEADER"), // matches runner.yaml secret + ElasticsearchURL: os.Getenv("ELASTICSEARCH_URL"), + ElasticsearchUser: os.Getenv("ELASTICSEARCH_USERNAME"), + ElasticsearchPassword: os.Getenv("ELASTICSEARCH_PASSWORD"), + ElasticsearchAPIKey: os.Getenv("ELASTICSEARCH_APIKEY"), + SignozURL: os.Getenv("SIGNOZ_URL"), + SignozAPIKey: os.Getenv("SIGNOZ_API_KEY"), + JaegerURL: os.Getenv("JAEGER_URL"), + ChronosphereURL: os.Getenv("CHRONOSPHERE_URL"), + ChronosphereAPIKey: os.Getenv("CHRONOSPHERE_API_KEY"), + PinotURL: os.Getenv("PINOT_URL"), + PinotAuthToken: os.Getenv("PINOT_AUTH_TOKEN"), + PinotUsername: os.Getenv("PINOT_USERNAME"), + PinotPassword: os.Getenv("PINOT_PASSWORD"), + HTTPProxyTargets: os.Getenv("HTTP_PROXY_TARGETS"), + LokiRulesURL: os.Getenv("LOKI_RULES_URL"), + HTTPListenAddr: cmp(os.Getenv("HTTP_LISTEN_ADDR"), ":5000"), + // K8s subsystems default-on so the agent is drop-in compatible with + // the legacy runner Deployment — no env additions needed for cutover. + // Operators can opt out per-subsystem via DISCOVERY_ENABLED=false etc. + DiscoveryEnabled: envBool("DISCOVERY_ENABLED", true), + DiscoveryResync: parseDuration(os.Getenv("DISCOVERY_RESYNC"), 30*time.Minute), + AlertRulesInterval: parseDuration(os.Getenv("ALERT_RULES_INTERVAL"), 30*time.Minute), + KubeEnabled: envBool("KUBE_ENABLED", true), + PodExecEnabled: envBool("PODEXEC_ENABLED", true), + // Off by default — these need extra config (RSA key, scanner SA, GCP ADC): + ScannersEnabled: envBool("SCANNERS_ENABLED", false), + ScannerNamespace: cmp(os.Getenv("SCANNER_NAMESPACE"), "nudgebee-agent"), + ScannerServiceAccount: os.Getenv("SCANNER_SERVICE_ACCOUNT"), + MutateEnabled: envBool("MUTATE_ENABLED", false), + AlertManagerURL: os.Getenv("ALERTMANAGER_URL"), + RSAPrivateKeyPath: os.Getenv("RSA_PRIVATE_KEY_PATH"), + GCPEnabled: envBool("GCP_ENABLED", false), + GCPProjectID: os.Getenv("GCP_PROJECT_ID"), + ClickHouseEnabled: envBool("CLICKHOUSE_ENABLED", true), + ClickHouseHost: os.Getenv("CLICKHOUSE_HOST"), + ClickHousePort: envInt("CLICKHOUSE_PORT", 8123), + ClickHouseUser: os.Getenv("CLICKHOUSE_USER"), + ClickHousePassword: os.Getenv("CLICKHOUSE_PASSWORD"), + ClickHouseDB: cmp(os.Getenv("CLICKHOUSE_DB"), "default"), + ClickHouseSSL: envBool("CLICKHOUSE_SSL_ENABLED", false), + } + if c.RelayURL == "" { + return nil, errors.New("WEBSOCKET_RELAY_ADDRESS not set") + } + if c.AuthSecretKey == "" { + return nil, errors.New("NUDGEBEE_AUTH_SECRET_KEY not set") + } + return c, nil +} + +// cmp returns a if non-empty, otherwise fallback. +func cmp(a, fallback string) string { + if a != "" { + return a + } + return fallback +} + +// envBool reads a "true"/"false" env var with a fallback when unset. Any +// value that's neither "true" nor "false" is treated as fallback (so a +// stray empty string or "1" doesn't silently flip a setting). +func envBool(name string, fallback bool) bool { + switch os.Getenv(name) { + case "true": + return true + case "false": + return false + default: + return fallback + } +} + +// envInt reads an int env var with a fallback when unset or invalid. +func envInt(name string, fallback int) int { + s := os.Getenv(name) + if s == "" { + return fallback + } + n, err := strconv.Atoi(s) + if err != nil { + return fallback + } + return n +} + +func parseDuration(s string, fallback time.Duration) time.Duration { + if s == "" { + return fallback + } + d, err := time.ParseDuration(s) + if err != nil { + return fallback + } + return d +} + +// ParseTargets parses a "name=url;name=url" string into a map. Used for +// HTTP_PROXY_TARGETS env var. +func ParseTargets(s string) map[string]string { + out := map[string]string{} + if s == "" { + return out + } + for _, pair := range strings.Split(s, ";") { + pair = strings.TrimSpace(pair) + if pair == "" { + continue + } + i := strings.IndexByte(pair, '=') + if i <= 0 { + continue + } + k := strings.TrimSpace(pair[:i]) + v := strings.TrimSpace(pair[i+1:]) + if k != "" { + out[k] = v + } + } + return out +} + +// ParseHeaders splits a comma-separated "Header: value" string into an +// http.Header. Returns an empty Header for empty input. Same shape used +// by the GRAFANA_EXTRA_HEADER / LOKI_EXTRA_HEADER pattern (a single +// "Header: value" or comma-separated list). +func ParseHeaders(s string) http.Header { + h := http.Header{} + if s == "" { + return h + } + for _, part := range strings.Split(s, ",") { + part = strings.TrimSpace(part) + if part == "" { + continue + } + i := strings.IndexByte(part, ':') + if i <= 0 { + continue + } + k := strings.TrimSpace(part[:i]) + v := strings.TrimSpace(part[i+1:]) + if k != "" { + h.Add(k, v) + } + } + return h +} diff --git a/runner/pkg/config/config_test.go b/runner/pkg/config/config_test.go new file mode 100644 index 0000000..5b0368e --- /dev/null +++ b/runner/pkg/config/config_test.go @@ -0,0 +1,184 @@ +package config + +import ( + "net/http" + "reflect" + "testing" + "time" +) + +func TestFromEnv_RequiredFieldsErrorOnMissing(t *testing.T) { + t.Setenv("WEBSOCKET_RELAY_ADDRESS", "") + t.Setenv("NUDGEBEE_AUTH_SECRET_KEY", "x") + if _, err := FromEnv(); err == nil { + t.Error("expected error for missing WEBSOCKET_RELAY_ADDRESS") + } + + t.Setenv("WEBSOCKET_RELAY_ADDRESS", "ws://relay") + t.Setenv("NUDGEBEE_AUTH_SECRET_KEY", "") + if _, err := FromEnv(); err == nil { + t.Error("expected error for missing NUDGEBEE_AUTH_SECRET_KEY") + } +} + +func TestFromEnv_ReadsAllFields(t *testing.T) { + t.Setenv("WEBSOCKET_RELAY_ADDRESS", "ws://relay") + t.Setenv("NUDGEBEE_AUTH_SECRET_KEY", "secret") + t.Setenv("NUDGEBEE_ENDPOINT", "https://api.example.com") + t.Setenv("ACCOUNT_ID", "acc-1") + t.Setenv("CLUSTER_NAME", "prod-cluster") + t.Setenv("PROMETHEUS_URL", "http://prom:9090") + t.Setenv("PROMETHEUS_HEADERS", "X-Scope-OrgID: t1") + t.Setenv("LOKI_URL", "http://loki:3100") + t.Setenv("LOKI_EXTRA_HEADER", "X-Scope-OrgID: t1") + t.Setenv("HTTP_LISTEN_ADDR", ":7000") + t.Setenv("DISCOVERY_ENABLED", "true") + t.Setenv("DISCOVERY_RESYNC", "10m") + + c, err := FromEnv() + if err != nil { + t.Fatalf("FromEnv: %v", err) + } + want := &Config{ + AuthSecretKey: "secret", + RelayURL: "ws://relay", + BackendEndpoint: "https://api.example.com", + AccountID: "acc-1", + ClusterName: "prod-cluster", + PrometheusURL: "http://prom:9090", + PrometheusHeaders: "X-Scope-OrgID: t1", + LokiURL: "http://loki:3100", + LokiHeaders: "X-Scope-OrgID: t1", + HTTPListenAddr: ":7000", + // K8s subsystems default-on (drop-in compatible with the legacy runner); + // operators opt out per-subsystem via DISCOVERY_ENABLED=false etc. + DiscoveryEnabled: true, + DiscoveryResync: 10 * time.Minute, + AlertRulesInterval: 30 * time.Minute, // default when ALERT_RULES_INTERVAL unset + KubeEnabled: true, + PodExecEnabled: true, + ScannerNamespace: "nudgebee-agent", // applied as default even when SCANNER_NAMESPACE unset + // ClickHouse defaults: enabled, port 8123, db "default" — so the + // chart's existing CH config (CLICKHOUSE_HOST in runner-secret) + // just works. + ClickHouseEnabled: true, + ClickHousePort: 8123, + ClickHouseDB: "default", + } + if !reflect.DeepEqual(c, want) { + t.Errorf("Config\n got: %+v\n want: %+v", c, want) + } +} + +func TestFromEnv_DefaultsWhenOptionalMissing(t *testing.T) { + t.Setenv("WEBSOCKET_RELAY_ADDRESS", "ws://relay") + t.Setenv("NUDGEBEE_AUTH_SECRET_KEY", "secret") + t.Setenv("HTTP_LISTEN_ADDR", "") + t.Setenv("DISCOVERY_RESYNC", "") + t.Setenv("DISCOVERY_ENABLED", "") + t.Setenv("KUBE_ENABLED", "") + t.Setenv("PODEXEC_ENABLED", "") + t.Setenv("SCANNERS_ENABLED", "") + t.Setenv("MUTATE_ENABLED", "") + t.Setenv("GCP_ENABLED", "") + c, err := FromEnv() + if err != nil { + t.Fatal(err) + } + if c.HTTPListenAddr != ":5000" { + t.Errorf("HTTPListenAddr default = %q; want :5000", c.HTTPListenAddr) + } + if c.DiscoveryResync != 30*time.Minute { + t.Errorf("DiscoveryResync default = %v; want 30m", c.DiscoveryResync) + } + // K8s subsystems default ON for drop-in compatibility with the legacy runner. + if !c.DiscoveryEnabled { + t.Error("DiscoveryEnabled default should be true (drop-in compat)") + } + if !c.KubeEnabled { + t.Error("KubeEnabled default should be true (drop-in compat)") + } + if !c.PodExecEnabled { + t.Error("PodExecEnabled default should be true (drop-in compat)") + } + // These need extra config (RSA key / scanner SA / GCP ADC) so they + // stay opt-in. + if c.ScannersEnabled { + t.Error("ScannersEnabled default should be false (needs SCANNER_SERVICE_ACCOUNT)") + } + if c.MutateEnabled { + t.Error("MutateEnabled default should be false (needs RSA_PRIVATE_KEY_PATH)") + } + if c.GCPEnabled { + t.Error("GCPEnabled default should be false (needs GCP_PROJECT_ID + ADC)") + } +} + +func TestEnvBool_FallbackBehavior(t *testing.T) { + t.Setenv("X_TEST", "") + if !envBool("X_TEST", true) { + t.Error("empty value should fall back to true") + } + if envBool("X_TEST", false) { + t.Error("empty value should fall back to false") + } + + t.Setenv("X_TEST", "true") + if !envBool("X_TEST", false) { + t.Error(`"true" should override fallback`) + } + t.Setenv("X_TEST", "false") + if envBool("X_TEST", true) { + t.Error(`"false" should override fallback`) + } + t.Setenv("X_TEST", "1") // unrecognised — fallback applies + if !envBool("X_TEST", true) { + t.Error(`unrecognised value should fall back to true`) + } + if envBool("X_TEST", false) { + t.Error(`unrecognised value should fall back to false`) + } +} + +func TestParseDuration_FallbackOnInvalid(t *testing.T) { + if got := parseDuration("not-a-duration", 7*time.Second); got != 7*time.Second { + t.Errorf("parseDuration invalid = %v; want fallback", got) + } + if got := parseDuration("", 7*time.Second); got != 7*time.Second { + t.Errorf("parseDuration empty = %v; want fallback", got) + } + if got := parseDuration("90s", time.Second); got != 90*time.Second { + t.Errorf("parseDuration 90s = %v; want 90s", got) + } +} + +func TestParseHeaders(t *testing.T) { + cases := []struct { + name string + in string + want http.Header + }{ + {"empty", "", http.Header{}}, + {"one", "X-Scope-OrgID: tenant-1", http.Header{"X-Scope-Orgid": []string{"tenant-1"}}}, + { + "multi", + "X-Scope-OrgID: tenant-1, Authorization: Bearer abc", + http.Header{ + "X-Scope-Orgid": []string{"tenant-1"}, + "Authorization": []string{"Bearer abc"}, + }, + }, + {"trims_whitespace", " X-A : v ", http.Header{"X-A": []string{"v"}}}, + {"skips_invalid", "no-colon-here, X-Y: ok", http.Header{"X-Y": []string{"ok"}}}, + {"value_can_contain_colons", "Authorization: Bearer x:y:z", + http.Header{"Authorization": []string{"Bearer x:y:z"}}}, + } + for _, c := range cases { + t.Run(c.name, func(t *testing.T) { + got := ParseHeaders(c.in) + if !reflect.DeepEqual(got, c.want) { + t.Errorf("ParseHeaders(%q)\n got: %v\n want: %v", c.in, got, c.want) + } + }) + } +} diff --git a/runner/pkg/control/refresh.go b/runner/pkg/control/refresh.go new file mode 100644 index 0000000..59e463e --- /dev/null +++ b/runner/pkg/control/refresh.go @@ -0,0 +1,140 @@ +// Package control implements the agent's hot-reload primitives. The +// legacy refresh_playbook action reloaded a YAML playbook; this agent +// has no playbook YAML (per the deprecation plan playbooks moved to the +// backend), so refresh_playbook here pulls the action allowlist from the +// backend so operators can add new actions to a running agent without a +// customer Helm upgrade. +// +// Action surface: +// - refresh_playbook : reload the light-action allowlist from the backend +// +// Design: +// - Allowlist source is GET /v1/agent/config +// +// returns {"light_actions": ["ping","echo",...]}). +// - On success, atomically swaps the validator's light-action set. +// - When the backend URL is unset, refresh_playbook is a no-op that +// returns {refreshed: false, reason: "no config source"}. The handler +// stays registered so manual probes still see "ok". +package control + +import ( + "context" + "encoding/base64" + "encoding/json" + "fmt" + "io" + "net/http" + "strings" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/auth" + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Refresher pulls config from the backend and applies it to the live Validator. +type Refresher struct { + BackendURL string // e.g. https://api.nudgebee.com — appended with /v1/agent/config + AuthSecretKey string // sent as Basic-Auth, same as relay + AccountID string + ClusterName string + Validator *auth.Validator + HTTP *http.Client + + // Static defaults — actions that are ALWAYS in the allowlist regardless + // of what the backend says. ping/echo/health probes belong here. + StaticActions []string +} + +// New returns a Refresher with sensible HTTP defaults. +func New(backendURL, authSecret, accountID, cluster string, v *auth.Validator) *Refresher { + return &Refresher{ + BackendURL: strings.TrimRight(backendURL, "/"), + AuthSecretKey: authSecret, + AccountID: accountID, + ClusterName: cluster, + Validator: v, + HTTP: &http.Client{Timeout: 15 * time.Second}, + } +} + +// configResponse is the shape we expect from /v1/agent/config. Keep it +// intentionally narrow — the agent only consumes the allowlist for now; +// other config fields can be added without forcing a Helm upgrade. +type configResponse struct { + LightActions []string `json:"light_actions"` +} + +// Refresh fetches the latest config and applies it. Returns a result map +// safe to surface back to the caller. +func (r *Refresher) Refresh(ctx context.Context) (map[string]any, error) { + if r.Validator == nil { + return nil, fmt.Errorf("control: validator not configured") + } + if r.BackendURL == "" { + return map[string]any{ + "refreshed": false, + "reason": "no config source — NUDGEBEE_ENDPOINT not set", + }, nil + } + + url := r.BackendURL + "/v1/agent/config" + req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil) + if err != nil { + return nil, err + } + if r.AuthSecretKey != "" { + // Bare base64, no "Basic " prefix — matches the legacy sink format. + req.Header.Set("Authorization", + base64.StdEncoding.EncodeToString([]byte(r.AuthSecretKey))) + } + if r.AccountID != "" { + req.Header.Set("X-NB-Account-Id", r.AccountID) + } + if r.ClusterName != "" { + req.Header.Set("X-NB-Cluster", r.ClusterName) + } + + resp, err := r.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("control: fetch config: %w", err) + } + defer func() { _ = resp.Body.Close() }() + body, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("control: HTTP %d: %s", resp.StatusCode, string(body)) + } + + var cfg configResponse + if err := json.Unmarshal(body, &cfg); err != nil { + return nil, fmt.Errorf("control: parse config: %w", err) + } + + merged := make(map[string]struct{}, len(cfg.LightActions)+len(r.StaticActions)) + for _, a := range r.StaticActions { + merged[a] = struct{}{} + } + for _, a := range cfg.LightActions { + merged[a] = struct{}{} + } + r.Validator.SetLightActions(merged) + + return map[string]any{ + "refreshed": true, + "action_count": len(merged), + "backend_count": len(cfg.LightActions), + "static_count": len(r.StaticActions), + }, nil +} + +// Handlers wires refresh_playbook into the dispatch registry. +func Handlers(r *Refresher) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "refresh_playbook": func(ctx context.Context, _ map[string]any) (any, error) { + return r.Refresh(ctx) + }, + } +} diff --git a/runner/pkg/control/refresh_test.go b/runner/pkg/control/refresh_test.go new file mode 100644 index 0000000..b44bd02 --- /dev/null +++ b/runner/pkg/control/refresh_test.go @@ -0,0 +1,183 @@ +package control + +import ( + "context" + "encoding/json" + "net/http" + "net/http/httptest" + "strings" + "sync" + "testing" + + "github.com/nudgebee/nudgebee-agent/pkg/auth" +) + +func TestRefresh_NoBackend_ReturnsNoOp(t *testing.T) { + v := &auth.Validator{LightActions: map[string]struct{}{"ping": {}}} + r := New("", "secret", "acc", "cluster", v) + got, err := r.Refresh(context.Background()) + if err != nil { + t.Fatal(err) + } + if got["refreshed"] != false { + t.Errorf("expected refreshed=false; got %v", got) + } + // Allowlist must be unchanged. + if _, ok := v.LightActionsSet()["ping"]; !ok { + t.Error("ping should still be allowed") + } +} + +func TestRefresh_ValidatorRequired(t *testing.T) { + r := New("http://x", "", "", "", nil) + if _, err := r.Refresh(context.Background()); err == nil { + t.Error("expected error when validator unset") + } +} + +func TestRefresh_HappyPath_SwapsAllowlist(t *testing.T) { + var gotPath, gotAccount string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + gotPath = r.URL.Path + gotAccount = r.Header.Get("X-NB-Account-Id") + _, _ = w.Write([]byte(`{"light_actions":["ping","query_loki","new_action"]}`)) + })) + defer srv.Close() + + v := &auth.Validator{LightActions: map[string]struct{}{"ping": {}}} + r := New(srv.URL, "secret", "acc-1", "cluster-x", v) + r.StaticActions = []string{"health"} // always allowed + + got, err := r.Refresh(context.Background()) + if err != nil { + t.Fatal(err) + } + if gotPath != "/v1/agent/config" { + t.Errorf("path = %q", gotPath) + } + if gotAccount != "acc-1" { + t.Errorf("X-NB-Account-Id = %q", gotAccount) + } + if got["refreshed"] != true { + t.Errorf("refreshed = %v", got["refreshed"]) + } + + set := v.LightActionsSet() + for _, want := range []string{"ping", "query_loki", "new_action", "health"} { + if _, ok := set[want]; !ok { + t.Errorf("set missing %q after refresh", want) + } + } +} + +func TestRefresh_AuthHeaderIsBareBase64(t *testing.T) { + var auth string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + auth = r.Header.Get("Authorization") + _, _ = w.Write([]byte(`{"light_actions":[]}`)) + })) + defer srv.Close() + r := New(srv.URL, "test-secret", "", "", newValidator()) + if _, err := r.Refresh(context.Background()); err != nil { + t.Fatal(err) + } + // Bare base64, no "Basic " prefix — matches the legacy sink format. + if auth == "" || strings.HasPrefix(auth, "Basic ") { + t.Errorf("Authorization = %q (expected bare base64, no Basic prefix)", auth) + } +} + +func TestRefresh_PropagatesHTTPErrors(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusForbidden) + _, _ = w.Write([]byte(`{"error":"forbidden"}`)) + })) + defer srv.Close() + r := New(srv.URL, "", "", "", newValidator()) + if _, err := r.Refresh(context.Background()); err == nil { + t.Error("expected error for HTTP 403") + } +} + +func TestRefresh_RejectsNonJSON(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`not json`)) + })) + defer srv.Close() + r := New(srv.URL, "", "", "", newValidator()) + if _, err := r.Refresh(context.Background()); err == nil { + t.Error("expected parse error") + } +} + +func TestRefresh_ConcurrentSafe(t *testing.T) { + // Ensure concurrent Refresh + Validate calls don't tear the allowlist. + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"light_actions":["a","b","c","d","e"]}`)) + })) + defer srv.Close() + + v := &auth.Validator{LightActions: map[string]struct{}{}} + r := New(srv.URL, "", "", "", v) + + var wg sync.WaitGroup + for i := 0; i < 100; i++ { + wg.Add(2) + go func() { + defer wg.Done() + _, _ = r.Refresh(context.Background()) + }() + go func() { + defer wg.Done() + _ = v.Validate(&auth.Request{ActionName: "a"}) + }() + } + wg.Wait() + // No panic == pass; race detector will catch any data race. + set := v.LightActionsSet() + if _, ok := set["a"]; !ok { + t.Errorf("expected 'a' in final set: %v", keysOf(set)) + } +} + +func TestHandlers_RegistersRefreshPlaybook(t *testing.T) { + r := New("http://x", "", "", "", newValidator()) + hs := Handlers(r) + if _, ok := hs["refresh_playbook"]; !ok { + t.Error("refresh_playbook not registered") + } +} + +func TestHandlers_DispatchEndToEnd(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"light_actions":["x"]}`)) + })) + defer srv.Close() + v := &auth.Validator{} + r := New(srv.URL, "", "", "", v) + hs := Handlers(r) + got, err := hs["refresh_playbook"](context.Background(), nil) + if err != nil { + t.Fatal(err) + } + m, ok := got.(map[string]any) + if !ok || m["refreshed"] != true { + t.Errorf("response = %v", got) + } + // Also verify the JSON-marshalability of the response. + if _, err := json.Marshal(got); err != nil { + t.Errorf("response not JSON-marshalable: %v", err) + } +} + +// newValidator returns a fresh empty validator. Avoids littering the tests +// with &auth.Validator{}. +func newValidator() *auth.Validator { return &auth.Validator{} } + +func keysOf(m map[string]struct{}) []string { + out := make([]string, 0, len(m)) + for k := range m { + out = append(out, k) + } + return out +} diff --git a/runner/pkg/discovery/alertrules.go b/runner/pkg/discovery/alertrules.go new file mode 100644 index 0000000..1c7484e --- /dev/null +++ b/runner/pkg/discovery/alertrules.go @@ -0,0 +1,195 @@ +package discovery + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "log/slog" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/kube" + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// AlertRulesCollector pushes Prometheus alert rules + PrometheusRule CRDs to +// the collector's /v1/k8s/discovery endpoint, which UPSERTs them into the +// `event_rules` table. Mirrors the legacy agent's `get_rules()` + +// `post_discovery("alert_rules", ...)` push. +// +// Wire shape the collector's alert_rules_handler.handle_alert_rules expects +// : +// +// { +// "api_based_rules": , // optional +// "crd_based_rules": {"items": [, ...]}, // optional +// } +// +// Both fields are optional — collector tolerates either being absent. CRD path +// is the canonical one because every prometheus-operator-installed alert is a +// PrometheusRule CRD; the API path adds in-line rules configured on Prometheus +// directly (not present on every cluster). +type AlertRulesCollector struct { + Prom *prometheus.Client // may be nil — pure CRD-mode is supported + Kube *kube.Client // may be nil — only Prom rules will be pushed + Sink *Sink // required + Logger *slog.Logger +} + +// Run blocks until ctx is done, emitting an envelope every `interval`. The +// first emit happens immediately so the canary populates event_rules without +// waiting for the first tick. +func (c *AlertRulesCollector) Run(ctx context.Context, interval time.Duration) error { + if c.Sink == nil { + return errors.New("alertrules: Sink is required") + } + if interval <= 0 { + interval = 30 * time.Minute + } + logger := c.Logger + if logger == nil { + logger = slog.Default() + } + logger = logger.With("collector", "alert_rules", "interval", interval) + + emit := func() { + emitCtx, cancel := context.WithTimeout(ctx, 60*time.Second) + defer cancel() + if err := c.Collect(emitCtx); err != nil { + logger.Error("emit failed", "err", err) + } + } + emit() + t := time.NewTicker(interval) + defer t.Stop() + for { + select { + case <-ctx.Done(): + return nil + case <-t.C: + emit() + } + } +} + +// Collect pulls rules from Prometheus (best-effort) and PrometheusRule CRDs +// (best-effort), then POSTs them as one envelope. Returns nil when both +// sources are unavailable — no envelope, no error, just a logged debug line. +// +// Exported (vs Run) so the cron handler tests / integration tests can drive +// a single emit without spinning a ticker. +func (c *AlertRulesCollector) Collect(ctx context.Context) error { + logger := c.Logger + if logger == nil { + logger = slog.Default() + } + + payload := map[string]any{} + + // Prometheus /api/v1/rules — best-effort. VictoriaMetrics' vmsingle + // returns 404; we silently fall back to CRD-only mode. + if c.Prom != nil && c.Prom.BaseURL != "" { + raw, err := c.Prom.Rules(ctx) + if err == nil && len(raw) > 0 { + parsed, ok := unwrapPromRules(raw) + if ok { + payload["api_based_rules"] = parsed + } else { + logger.Debug("prometheus rules response not parseable, skipping", + "raw_bytes", len(raw)) + } + } else if err != nil { + logger.Debug("prometheus /api/v1/rules unavailable, skipping", + "err", err) + } + } + + // PrometheusRule CRDs — list all monitoring.coreos.com/v1 PrometheusRules. + // camelCase keys preserved (UnstructuredContent) which is exactly what the + // collector's handle_crd_based_rules expects (it reads `spec.groups`, + // `rule.expr`, `rule.for`, etc. as camelCase). + if c.Kube != nil { + items, err := c.Kube.GetResource(ctx, kube.GetParams{ + Group: "monitoring.coreos.com", + Version: "v1", + ResourceType: "prometheusrules", + AllNamespaces: true, + }) + if err == nil { + arr, _ := items.([]any) + if len(arr) > 0 { + payload["crd_based_rules"] = map[string]any{"items": arr} + } + } else { + // CRD not installed → tolerate. No CRDs configured is also a + // legitimate state. + logger.Debug("PrometheusRule CRD list failed (CRD may be missing)", + "err", err) + } + } + + if len(payload) == 0 { + logger.Debug("alert_rules: no rules to push this tick") + return nil + } + + // alert_rules is the one discovery type whose collector handler + // expects Data to be a single dict, not + // a list of items. Other discovery types batch items (services, pods, + // nodes, …) and send Data as []any. Envelope.Data is `any` to + // accommodate both shapes; this site sends the dict unwrapped to + // avoid the AttributeError "'list' object has no attribute 'get'" + // the worker raised when payload was wrapped in `[]any{payload}`. + envelope := &Envelope{ + Type: TypeAlertRules, + Data: payload, + FullLoad: true, + IsFirstBatch: true, + IsLastBatch: true, + TotalBatches: 1, + } + if err := c.Sink.Post(ctx, envelope); err != nil { + return fmt.Errorf("post alert_rules: %w", err) + } + logger.Info("alert_rules: pushed", + "has_api_rules", payload["api_based_rules"] != nil, + "crd_count", crdCount(payload)) + return nil +} + +// unwrapPromRules decodes the /api/v1/rules response wrapper +// `{status: "success", data: {groups: [...]}}` into just the data object +// . Returns ok=false when the +// shape doesn't match — caller logs + skips. +func unwrapPromRules(raw json.RawMessage) (map[string]any, bool) { + var envelope struct { + Status string `json:"status"` + Data json.RawMessage `json:"data"` + } + if err := json.Unmarshal(raw, &envelope); err != nil { + return nil, false + } + if envelope.Status != "success" || len(envelope.Data) == 0 { + return nil, false + } + var data map[string]any + if err := json.Unmarshal(envelope.Data, &data); err != nil { + return nil, false + } + if _, ok := data["groups"]; !ok { + return nil, false + } + return data, true +} + +func crdCount(payload map[string]any) int { + crd, ok := payload["crd_based_rules"].(map[string]any) + if !ok { + return 0 + } + items, ok := crd["items"].([]any) + if !ok { + return 0 + } + return len(items) +} diff --git a/runner/pkg/discovery/alertrules_test.go b/runner/pkg/discovery/alertrules_test.go new file mode 100644 index 0000000..2fbb3f8 --- /dev/null +++ b/runner/pkg/discovery/alertrules_test.go @@ -0,0 +1,211 @@ +package discovery + +import ( + "context" + "encoding/json" + "log/slog" + "net/http" + "net/http/httptest" + "testing" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// captureSink records every Post() call so tests can assert on the envelope +// without touching the network. +type captureSink struct { + *Sink + posts []*Envelope +} + +// newCaptureSink wraps a real Sink whose URL points at a recording +// httptest.Server. We use the real Post path (so gzip / retry logic runs) +// rather than monkey-patching the sink. +func newCaptureSink(t *testing.T) *captureSink { + t.Helper() + cs := &captureSink{} + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + var env Envelope + if err := json.NewDecoder(r.Body).Decode(&env); err != nil { + t.Errorf("bad envelope: %v", err) + w.WriteHeader(500) + return + } + cs.posts = append(cs.posts, &env) + w.WriteHeader(202) + })) + t.Cleanup(srv.Close) + cs.Sink = &Sink{ + URL: srv.URL, + AuthSecret: "test:secret", + AccountID: "acc", + Cluster: "test", + HTTP: srv.Client(), + Logger: slog.Default(), + } + return cs +} + +// promRulesServer returns an httptest server that responds to /api/v1/rules +// with the given JSON body (or a 404 when body is empty). +func promRulesServer(t *testing.T, body string) *httptest.Server { + t.Helper() + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/api/v1/rules" { + http.NotFound(w, r) + return + } + if body == "" { + http.NotFound(w, r) + return + } + w.Header().Set("Content-Type", "application/json") + _, _ = w.Write([]byte(body)) + })) + t.Cleanup(srv.Close) + return srv +} + +const promRulesOK = `{ + "status": "success", + "data": { + "groups": [{ + "name": "kubernetes.rules", + "rules": [{ + "type": "alerting", + "name": "KubeJobFailed", + "query": "kube_job_failed > 0", + "duration": "5m", + "annotations": {"summary": "Job failed"}, + "labels": {"severity": "warning"} + }] + }] + } +}` + +func TestAlertRulesCollector_PromOnly(t *testing.T) { + cs := newCaptureSink(t) + promSrv := promRulesServer(t, promRulesOK) + prom := prometheus.New(promSrv.URL, nil) + + c := &AlertRulesCollector{Prom: prom, Sink: cs.Sink} + if err := c.Collect(context.Background()); err != nil { + t.Fatal(err) + } + if len(cs.posts) != 1 { + t.Fatalf("want 1 post, got %d", len(cs.posts)) + } + env := cs.posts[0] + if env.Type != TypeAlertRules { + t.Errorf("type = %s; want alert_rules", env.Type) + } + if !env.FullLoad { + t.Errorf("full_load should be true on alert_rules emits") + } + // alert_rules sends Data as an unwrapped dict — collector's + // handle_alert_rules() expects a Mapping. Other discovery types + // (services / pods / …) still wrap in []any. + payload, ok := env.Data.(map[string]any) + if !ok { + t.Fatalf("data not a map: %T", env.Data) + } + if _, ok := payload["api_based_rules"]; !ok { + t.Errorf("api_based_rules missing") + } + if _, ok := payload["crd_based_rules"]; ok { + t.Errorf("crd_based_rules should be absent when no kube client") + } +} + +func TestAlertRulesCollector_PromUnavailable(t *testing.T) { + cs := newCaptureSink(t) + promSrv := promRulesServer(t, "") // 404s + prom := prometheus.New(promSrv.URL, nil) + + c := &AlertRulesCollector{Prom: prom, Sink: cs.Sink} + if err := c.Collect(context.Background()); err != nil { + t.Fatal(err) + } + // Both sources absent → no envelope. + if len(cs.posts) != 0 { + t.Fatalf("want 0 posts (both sources empty), got %d", len(cs.posts)) + } +} + +func TestAlertRulesCollector_RejectsMalformedPromResponse(t *testing.T) { + cs := newCaptureSink(t) + // Returns 200 but the shape is not the {status, data:{groups}} envelope. + promSrv := promRulesServer(t, `{"status":"error","error":"timed out"}`) + prom := prometheus.New(promSrv.URL, nil) + + c := &AlertRulesCollector{Prom: prom, Sink: cs.Sink} + if err := c.Collect(context.Background()); err != nil { + t.Fatal(err) + } + if len(cs.posts) != 0 { + t.Fatalf("malformed prom response should be skipped, got %d posts", len(cs.posts)) + } +} + +func TestAlertRulesCollector_RunEmitsImmediatelyThenOnTick(t *testing.T) { + cs := newCaptureSink(t) + promSrv := promRulesServer(t, promRulesOK) + prom := prometheus.New(promSrv.URL, nil) + + c := &AlertRulesCollector{Prom: prom, Sink: cs.Sink} + ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond) + defer cancel() + // Immediate emit + at least one tick at the configured interval. + _ = c.Run(ctx, 80*time.Millisecond) + + if len(cs.posts) < 2 { + t.Errorf("expected at least 2 posts (immediate + tick), got %d", len(cs.posts)) + } +} + +func TestUnwrapPromRules(t *testing.T) { + good, ok := unwrapPromRules(json.RawMessage(promRulesOK)) + if !ok { + t.Fatal("good payload should unwrap") + } + if _, has := good["groups"]; !has { + t.Errorf("unwrapped result should contain `groups`") + } + + cases := map[string]string{ + "non-success status": `{"status":"error"}`, + "missing groups": `{"status":"success","data":{"other":1}}`, + "not json": `not json`, + } + for name, raw := range cases { + _, ok := unwrapPromRules(json.RawMessage(raw)) + if ok { + t.Errorf("%s should reject", name) + } + } +} + +func TestCrdCount(t *testing.T) { + cases := []struct { + name string + payload map[string]any + want int + }{ + {"empty", map[string]any{}, 0}, + {"crd absent", map[string]any{"api_based_rules": "..."}, 0}, + {"wrong shape", map[string]any{"crd_based_rules": "not-a-map"}, 0}, + { + "populated", + map[string]any{"crd_based_rules": map[string]any{"items": []any{1, 2, 3}}}, + 3, + }, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + if got := crdCount(tc.payload); got != tc.want { + t.Errorf("got %d, want %d", got, tc.want) + } + }) + } +} diff --git a/runner/pkg/discovery/auth.go b/runner/pkg/discovery/auth.go new file mode 100644 index 0000000..f8457d8 --- /dev/null +++ b/runner/pkg/discovery/auth.go @@ -0,0 +1,12 @@ +package discovery + +import "encoding/base64" + +// basicAuth produces the Authorization header value the collector expects: +// a bare base64 string with NO "Basic " prefix. The collector's auth +// handler reads the header verbatim and base64-decodes; prepending +// "Basic " causes a 401 "Invalid secret" because the decoded string +// still has the prefix bytes. +func basicAuth(secret string) string { + return base64.StdEncoding.EncodeToString([]byte(secret)) +} diff --git a/runner/pkg/discovery/converters.go b/runner/pkg/discovery/converters.go new file mode 100644 index 0000000..515c10d --- /dev/null +++ b/runner/pkg/discovery/converters.go @@ -0,0 +1,660 @@ +package discovery + +import ( + "encoding/json" + "strings" + "time" + + appsv1 "k8s.io/api/apps/v1" + batchv1 "k8s.io/api/batch/v1" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/labels" +) + +// podLookupFn finds one representative Pod owned by a workload, used by +// the workload converters to fill the qos_class / ip / conditions +// fields emitted on a Pod-driven update path. Returns nil when no +// matching Pod has reported status yet — callers must treat that as +// "absent" and emit null defaults. +type podLookupFn func(namespace string, selector labels.Selector) *corev1.Pod + +// Converters for each resource type. The collector reads keys like +// `service_key`, `node_creation_time`, `workload_count` directly and +// crashes with KeyError when they're missing — emit every documented +// field, even when zero. + +// convertDeployment / convertStatefulSet / convertDaemonSet / convertReplicaSet +// / convertJob / convertCronJob all produce the "service" dict shape. + +func convertDeployment(obj any) (any, bool) { + return newDeploymentConverter(nil)(obj) +} + +func newDeploymentConverter(lookup podLookupFn) func(any) (any, bool) { + return func(obj any) (any, bool) { + d, ok := obj.(*appsv1.Deployment) + if !ok { + return nil, false + } + replicas := int32(0) + if d.Spec.Replicas != nil { + replicas = *d.Spec.Replicas + } + return serviceDict("Deployment", d.Name, d.Namespace, d.ObjectMeta, + replicas, d.Status.ReadyReplicas, d.Spec.Template, d.OwnerReferences, + lookup, d.Spec.Selector), true + } +} + +func convertStatefulSet(obj any) (any, bool) { + return newStatefulSetConverter(nil)(obj) +} + +func newStatefulSetConverter(lookup podLookupFn) func(any) (any, bool) { + return func(obj any) (any, bool) { + s, ok := obj.(*appsv1.StatefulSet) + if !ok { + return nil, false + } + replicas := int32(0) + if s.Spec.Replicas != nil { + replicas = *s.Spec.Replicas + } + return serviceDict("StatefulSet", s.Name, s.Namespace, s.ObjectMeta, + replicas, s.Status.ReadyReplicas, s.Spec.Template, s.OwnerReferences, + lookup, s.Spec.Selector), true + } +} + +func convertDaemonSet(obj any) (any, bool) { + return newDaemonSetConverter(nil)(obj) +} + +func newDaemonSetConverter(lookup podLookupFn) func(any) (any, bool) { + return func(obj any) (any, bool) { + d, ok := obj.(*appsv1.DaemonSet) + if !ok { + return nil, false + } + return serviceDict("DaemonSet", d.Name, d.Namespace, d.ObjectMeta, + d.Status.DesiredNumberScheduled, d.Status.NumberReady, d.Spec.Template, d.OwnerReferences, + lookup, d.Spec.Selector), true + } +} + +func convertReplicaSet(obj any) (any, bool) { + return newReplicaSetConverter(nil)(obj) +} + +func newReplicaSetConverter(lookup podLookupFn) func(any) (any, bool) { + return func(obj any) (any, bool) { + r, ok := obj.(*appsv1.ReplicaSet) + if !ok { + return nil, false + } + replicas := int32(0) + if r.Spec.Replicas != nil { + replicas = *r.Spec.Replicas + } + // Only emit ReplicaSets with replicas > 0 — the rest are old + // revisions kept by the owning Deployment. + if replicas == 0 { + return nil, false + } + return serviceDict("ReplicaSet", r.Name, r.Namespace, r.ObjectMeta, + replicas, r.Status.ReadyReplicas, r.Spec.Template, r.OwnerReferences, + lookup, r.Spec.Selector), true + } +} + +// convertJob produces the JobInfo wire shape the backend expects. +// Distinct from the service-dict because the collector's job branch reads +// job-specific keys: created_at, updated_at, cpu_req, mem_req, completions, +// status (dict), job_data (dict), service_key. +func convertJob(obj any) (any, bool) { + j, ok := obj.(*batchv1.Job) + if !ok { + return nil, false + } + completions := int32(0) + if j.Spec.Completions != nil { + completions = *j.Spec.Completions + } + cpuReq, memReq := podSpecRequests(j.Spec.Template.Spec) + return jobDict("Job", j.Name, j.Namespace, j.ObjectMeta, + completions, + jobStatusDict(j.Status, nil), + jobDataDict(j.Spec.Template.Spec, j.Spec.BackoffLimit, j.Labels, j.OwnerReferences, "", nil), + cpuReq, memReq), true +} + +// convertCronJob produces the same JobInfo wire shape but with schedule + +// suspend nested inside job_data. The collector treats CronJob the same way +// as Job (parse_job_discovery — same path). +func convertCronJob(obj any) (any, bool) { + c, ok := obj.(*batchv1.CronJob) + if !ok { + return nil, false + } + suspended := c.Spec.Suspend + cpuReq, memReq := podSpecRequests(c.Spec.JobTemplate.Spec.Template.Spec) + return jobDict("CronJob", c.Name, c.Namespace, c.ObjectMeta, + 0, + jobStatusDict(batchv1.JobStatus{}, c.Status.LastScheduleTime), + jobDataDict(c.Spec.JobTemplate.Spec.Template.Spec, c.Spec.JobTemplate.Spec.BackoffLimit, + c.Labels, c.OwnerReferences, c.Spec.Schedule, suspended), + cpuReq, memReq), true +} + +// jobDict builds the common JobInfo-shaped dict. service_key, updated_at, +// and created_at are computed inline (not stored on the Pydantic model). +func jobDict( + kind, name, namespace string, + meta metav1.ObjectMeta, + completions int32, + status, jobData map[string]any, + cpuReq float64, memReq int64, +) map[string]any { + return map[string]any{ + "name": name, + "namespace": namespace, + "type": kind, + "service_key": namespace + "/" + kind + "/" + name, + // RFC3339 (no " UTC" literal) so Postgres' timestamp parser accepts + // the value at insert time. Same reason as node_creation_time. + "created_at": meta.CreationTimestamp.UTC().Format(time.RFC3339), + "updated_at": time.Now().UTC().UnixMilli(), + "deleted": false, + "completions": completions, + "cpu_req": cpuReq, + "mem_req": memReq, + "status": status, + "job_data": jobData, + "resource_version": parseResourceVersion(meta), + // `config` is read by .get for the labels fallback at line 1437. We + // emit the same shape services use so existing parsers stay happy. + "config": map[string]any{"labels": nonNilLabels(meta.Labels)}, + } +} + +// jobStatusDict mirrors JobStatus. Times are str() of the timestamp, +// to match the legacy str(getattr(...)) coercion. lastSchedule is only +// populated for CronJob. +func jobStatusDict(s batchv1.JobStatus, lastSchedule *metav1.Time) map[string]any { + // Time strings use RFC3339 (no " UTC" suffix) so Postgres timestamp + // parsers accept them at insert time. + completionTime := "" + if s.CompletionTime != nil { + completionTime = s.CompletionTime.UTC().Format(time.RFC3339) + } + lastSched := "" + if lastSchedule != nil { + lastSched = lastSchedule.UTC().Format(time.RFC3339) + } + conditions := make([]map[string]any, 0, len(s.Conditions)) + for _, c := range s.Conditions { + if string(c.Status) != "True" { + continue + } + conditions = append(conditions, map[string]any{ + "type": string(c.Type), + "message": c.Message, + }) + } + return map[string]any{ + "active": s.Active, + "failed": s.Failed, + "succeeded": s.Succeeded, + "completion_time": completionTime, + "failed_time": "", + "conditions": conditions, + "last_schedule_time": lastSched, + } +} + +// jobDataDict mirrors JobData. Per-container image + +// requests + limits, plus tolerations / node_selector / labels / pods / +// parents / schedule / suspend. +func jobDataDict( + pod corev1.PodSpec, + backoffLimit *int32, + labels map[string]string, + owners []metav1.OwnerReference, + schedule string, + suspend *bool, +) map[string]any { + containers := make([]map[string]any, 0, len(pod.Containers)) + for _, c := range pod.Containers { + req, lim := containerResources(c) + containers = append(containers, map[string]any{ + "image": c.Image, + "cpu_req": req.cpu, + "cpu_limit": lim.cpu, + "mem_req": req.mem, + "mem_limit": lim.mem, + }) + } + tolerations := make([]map[string]any, 0, len(pod.Tolerations)) + for _, t := range pod.Tolerations { + tolerations = append(tolerations, map[string]any{ + "key": t.Key, "value": t.Value, "operator": string(t.Operator), "effect": string(t.Effect), + }) + } + bl := int32(0) + if backoffLimit != nil { + bl = *backoffLimit + } + parents := make([]map[string]any, 0, len(owners)) + for _, o := range owners { + parents = append(parents, map[string]any{"name": o.Name, "kind": o.Kind}) + } + if pod.NodeSelector == nil { + pod.NodeSelector = map[string]string{} + } + return map[string]any{ + "backoff_limit": bl, + "tolerations": tolerations, + "node_selector": pod.NodeSelector, + "labels": nonNilLabels(labels), + "containers": containers, + "pods": []string{}, + "parents": parents, + "schedule": schedule, + "suspend": suspend, + } +} + +// containerResources extracts cpu (cores) + memory (bytes) requests + limits +// from a container. Handles the "no resources set" → zero case quietly. +type resPair struct { + cpu float64 + mem int64 +} + +func containerResources(c corev1.Container) (req, lim resPair) { + if v, ok := c.Resources.Requests[corev1.ResourceCPU]; ok { + req.cpu = float64(v.MilliValue()) / 1000 + } + if v, ok := c.Resources.Requests[corev1.ResourceMemory]; ok { + req.mem = v.Value() + } + if v, ok := c.Resources.Limits[corev1.ResourceCPU]; ok { + lim.cpu = float64(v.MilliValue()) / 1000 + } + if v, ok := c.Resources.Limits[corev1.ResourceMemory]; ok { + lim.mem = v.Value() + } + return req, lim +} + +// podSpecRequests sums request CPU (cores) and memory (bytes) across all +// containers in a pod template — used for cpu_req / mem_req on the JobInfo. +func podSpecRequests(spec corev1.PodSpec) (cpu float64, mem int64) { + for _, c := range spec.Containers { + r, _ := containerResources(c) + cpu += r.cpu + mem += r.mem + } + return cpu, mem +} + +// serviceDict produces the service map for any controller-kind. +// `service_key` is computed (not stored on ServiceInfo), `type` +// (not service_type) and `config` (not service_config) are the +// on-the-wire field names, and `update_time` is filled in here so the +// collector can compare against its DB row. +func serviceDict( + kind, name, namespace string, + meta metav1.ObjectMeta, + totalPods, readyPods int32, + tpl corev1.PodTemplateSpec, + owners []metav1.OwnerReference, + lookup podLookupFn, + workloadSelector *metav1.LabelSelector, +) map[string]any { + // Pull qos_class / ip / conditions off a representative running Pod + // matching the workload's selector. These three fields are not on + // the PodTemplateSpec (they're per-instance Status fields), so they + // require a live cache lookup. Stays nil when the lookup is unset + // (test paths) or no Pod has reported status yet. + var ( + qosClass any = nil + ip any = nil + conditions = []map[string]any{} + ) + if lookup != nil && workloadSelector != nil { + sel, err := metav1.LabelSelectorAsSelector(workloadSelector) + if err == nil && !sel.Empty() { + if pod := lookup(namespace, sel); pod != nil { + if pod.Status.QOSClass != "" { + qosClass = string(pod.Status.QOSClass) + } + if pod.Status.PodIP != "" { + ip = pod.Status.PodIP + } + for _, c := range pod.Status.Conditions { + conditions = append(conditions, map[string]any{ + "type": string(c.Type), + "status": string(c.Status), + }) + } + } + } + } + return map[string]any{ + "name": name, + "namespace": namespace, + "type": kind, + "service_key": namespace + "/" + kind + "/" + name, + "resource_version": parseResourceVersion(meta), + "creation_time": meta.CreationTimestamp.UTC().Format(time.RFC3339), + "update_time": time.Now().UTC().UnixMilli(), + "deleted": false, + "classification": "None", + "total_pods": totalPods, + "ready_pods": readyPods, + "is_helm_release": isHelmRelease(meta.Labels, meta.Annotations), + "status": nil, + "node_name": nil, + "restart_count": nil, + "status_dict": nil, + "config": map[string]any{ + // `labels` must be a non-nil map — k8s_workloads.labels is + // NOT NULL, and Go's nil map serializes as JSON null which + // fails the insert (collector logs NotNullViolation). + "labels": nonNilLabels(meta.Labels), + "containers": containersFromTemplate(tpl), + "owner": ownerInfos(owners), + // Mirror the legacy ServiceConfig. The UI + // (KubernetesWorkloads.jsx:2488) reads `volumes.length` without + // optional chaining, so emitting an empty array — rather than + // omitting the key — prevents an "undefined.length" crash on + // the K8s Applications drilldown. Tolerations, affinity, + // annotations, and service_account are derivable directly + // from the PodTemplateSpec we already have on hand; qos_class / + // ip / conditions live on PodStatus and require a separate + // Pod-driven emission path (out of scope here — default to + // empty so the keys are present and the UI panels render). + "volumes": volumesFromTemplate(tpl), + "toleration": tolerationsFromTemplate(tpl), + "affinity": affinityFromTemplate(tpl), + "annotations": nonNilLabels(meta.Annotations), + "service_account": tpl.Spec.ServiceAccountName, + "qos_class": qosClass, + "ip": ip, + "conditions": conditions, + }, + } +} + +// volumesFromTemplate mirrors VolumeInfo.get_volume_info +// . Emits `{name, persistent_volume_claim: +// {claim_name}}` for PVC volumes, `{name}` for anything else. Returns +// an empty slice rather than nil so the UI's missing-optional-chain at +// KubernetesWorkloads.jsx:2488 (`.volumes.length > 0`) doesn't crash. +func volumesFromTemplate(tpl corev1.PodTemplateSpec) []map[string]any { + out := make([]map[string]any, 0, len(tpl.Spec.Volumes)) + for _, v := range tpl.Spec.Volumes { + entry := map[string]any{"name": v.Name} + if v.PersistentVolumeClaim != nil { + entry["persistent_volume_claim"] = map[string]any{ + "claim_name": v.PersistentVolumeClaim.ClaimName, + } + } + out = append(out, entry) + } + return out +} + +// tolerationsFromTemplate emits the four primary keys the Kubernetes +// Python client serializes for V1Toleration. +func tolerationsFromTemplate(tpl corev1.PodTemplateSpec) []map[string]any { + out := make([]map[string]any, 0, len(tpl.Spec.Tolerations)) + for _, t := range tpl.Spec.Tolerations { + entry := map[string]any{ + "key": t.Key, + "operator": string(t.Operator), + "value": t.Value, + "effect": string(t.Effect), + } + if t.TolerationSeconds != nil { + entry["toleration_seconds"] = *t.TolerationSeconds + } + out = append(out, entry) + } + return out +} + +// affinityFromTemplate returns the V1Affinity dict representation, or +// an empty map when unset. The UI doesn't depend on a specific nested +// shape (it renders a JSON view), so a shallow marshal-via-JSON suffices. +func affinityFromTemplate(tpl corev1.PodTemplateSpec) map[string]any { + if tpl.Spec.Affinity == nil { + return map[string]any{} + } + raw, err := json.Marshal(tpl.Spec.Affinity) + if err != nil { + return map[string]any{} + } + out := map[string]any{} + if err := json.Unmarshal(raw, &out); err != nil { + return map[string]any{} + } + return out +} + +// nonNilLabels guarantees at least an empty map so consumers' NOT NULL +// label columns don't reject the insert. +func nonNilLabels(m map[string]string) map[string]string { + if m == nil { + return map[string]string{} + } + return m +} + +// convertNode produces the NodeInfo wire shape the backend expects. +// Several fields (memory_allocated, cpu_allocated, pods, pods_count, +// memory_limits, cpu_limits) require cross-resource aggregation (sum over +// pods scheduled on the node). The Go discovery isn't pod-aware yet, so they +// emit zeros — the collector accepts numeric zeros, just shows zero +// allocation in the UI. Phase-4 will compute these from the pod informer. +func convertNode(obj any) (any, bool) { + n, ok := obj.(*corev1.Node) + if !ok { + return nil, false + } + internal, external := nodeAddresses(n) + return map[string]any{ + "name": n.Name, + // Postgres' timestamp parser rejects the literal " UTC" suffix that + // Go's time.Time.String() appends ("2026-05-07 00:43:41 +0000 UTC" + // → InvalidDatetimeFormat at insert). RFC3339 ("2026-05-07T00:43:41Z") + // parses cleanly and matches str(creation_timestamp) output from + // the Python kubernetes client (no UTC suffix). + "node_creation_time": n.CreationTimestamp.UTC().Format(time.RFC3339), + // `updated_at` is read directly by the collector via + // datetime.fromtimestamp(...)/1000 — must be a unix-millis number, + // set fresh per snapshot. + "updated_at": time.Now().UTC().UnixMilli(), + "internal_ip": internal, + "external_ip": external, + "taints": taintString(n.Spec.Taints), + "conditions": conditionString(n.Status.Conditions), + "memory_capacity": mbFromResourceList(n.Status.Capacity, corev1.ResourceMemory), + "memory_allocatable": mbFromResourceList(n.Status.Allocatable, corev1.ResourceMemory), + "memory_allocated": 0, + "memory_limits": 0, + "cpu_capacity": cpuFromResourceList(n.Status.Capacity), + "cpu_allocatable": cpuFromResourceList(n.Status.Allocatable), + "cpu_allocated": 0.0, + "cpu_limits": 0.0, + "pods_count": 0, + "pods": "", + "node_info": nodeInfoMap(n), + "deleted": false, + "resource_version": parseResourceVersion(n.ObjectMeta), + }, true +} + +// convertNamespace adds `workload_count` + `pod_count` (zeros until we sum +// across the service+pod caches) so the collector's +// `k8s_data["workload_count"]` access doesn't KeyError. +func convertNamespace(obj any) (any, bool) { + n, ok := obj.(*corev1.Namespace) + if !ok { + return nil, false + } + return map[string]any{ + "name": n.Name, + "workload_count": 0, + "pod_count": 0, + "creation_time": n.CreationTimestamp.UTC().Format(time.RFC3339), + // `updated_at` must be a unix-millis number — required by the + // collector via direct index whenever it touches namespace rows. + "updated_at": time.Now().UTC().UnixMilli(), + "deleted": false, + "resource_version": parseResourceVersion(n.ObjectMeta), + "phase": string(n.Status.Phase), + "labels": nonNilLabels(n.Labels), + "annotations": nonNilLabels(n.Annotations), + }, true +} + +// nodeAddresses splits node.status.addresses into the comma-joined +// internal_ip / external_ip strings. +func nodeAddresses(n *corev1.Node) (internal, external string) { + var ints, exts []string + for _, addr := range n.Status.Addresses { + switch strings.ToLower(string(addr.Type)) { + case "internalip": + ints = append(ints, addr.Address) + case "externalip": + exts = append(exts, addr.Address) + } + } + return strings.Join(ints, ","), strings.Join(exts, ",") +} + +// taintString joins taints as "key=value:effect,…". +func taintString(taints []corev1.Taint) string { + parts := make([]string, 0, len(taints)) + for _, t := range taints { + parts = append(parts, t.Key+"="+t.Value+":"+string(t.Effect)) + } + return strings.Join(parts, ",") +} + +// conditionString emits ":" for any node condition that +// isn't a quiet false, plus always emits Ready regardless of status. +func conditionString(conds []corev1.NodeCondition) string { + parts := make([]string, 0, len(conds)) + for _, c := range conds { + if string(c.Status) == "False" && c.Type != corev1.NodeReady { + continue + } + parts = append(parts, string(c.Type)+":"+string(c.Status)) + } + return strings.Join(parts, ",") +} + +// mbFromResourceList parses a ResourceList memory entry and returns its size +// in MB. The collector stores the integer directly. +func mbFromResourceList(rl corev1.ResourceList, key corev1.ResourceName) int64 { + q, ok := rl[key] + if !ok { + return 0 + } + bytes, ok := q.AsInt64() + if !ok { + bytes = q.Value() + } + return bytes / (1024 * 1024) +} + +func cpuFromResourceList(rl corev1.ResourceList) float64 { + q, ok := rl[corev1.ResourceCPU] + if !ok { + return 0 + } + // Convert to cores. ResourceList CPU is typically in cores ("4") or + // millicores ("4000m"); MilliValue gives us a uniform integer. + mv := q.MilliValue() + return float64(mv) / 1000 +} + +// nodeInfoMap wraps V1NodeSystemInfo plus labels/annotations/addresses +// in a dict the collector consumes. +func nodeInfoMap(n *corev1.Node) map[string]any { + addrs := make([]string, 0, len(n.Status.Addresses)) + for _, a := range n.Status.Addresses { + addrs = append(addrs, a.Address) + } + return map[string]any{ + "system": map[string]any{ + "architecture": n.Status.NodeInfo.Architecture, + "container_runtime_version": n.Status.NodeInfo.ContainerRuntimeVersion, + "kernel_version": n.Status.NodeInfo.KernelVersion, + "kubelet_version": n.Status.NodeInfo.KubeletVersion, + "os_image": n.Status.NodeInfo.OSImage, + "operating_system": n.Status.NodeInfo.OperatingSystem, + "machine_id": n.Status.NodeInfo.MachineID, + "system_uuid": n.Status.NodeInfo.SystemUUID, + "boot_id": n.Status.NodeInfo.BootID, + }, + "labels": nonNilLabels(n.Labels), + "annotations": nonNilLabels(n.Annotations), + "addresses": addrs, + } +} + +// containersFromTemplate, ownerInfos, isHelmRelease, parseResourceVersion are +// shared helpers — kept below so the converters above are the authoritative +// list of fields the wire format carries. + +func containersFromTemplate(tpl corev1.PodTemplateSpec) []map[string]any { + out := make([]map[string]any, 0, len(tpl.Spec.Containers)) + for _, c := range tpl.Spec.Containers { + out = append(out, map[string]any{ + "name": c.Name, + "image": c.Image, + }) + } + return out +} + +func ownerInfos(owners []metav1.OwnerReference) []map[string]any { + out := make([]map[string]any, 0, len(owners)) + for _, o := range owners { + out = append(out, map[string]any{"kind": o.Kind, "name": o.Name}) + } + return out +} + +// isHelmRelease checks the standard label/annotation conventions. +func isHelmRelease(labels, annotations map[string]string) bool { + if labels["app.kubernetes.io/managed-by"] == "Helm" { + return true + } + for k := range labels { + if hasPrefix(k, "helm.") || hasPrefix(k, "meta.helm.") { + return true + } + } + for k := range annotations { + if hasPrefix(k, "helm.") || hasPrefix(k, "meta.helm.") { + return true + } + } + return false +} + +func hasPrefix(s, p string) bool { + if len(s) < len(p) { + return false + } + return s[:len(p)] == p +} + +// parseResourceVersion is defined in service.go alongside other informer +// helpers and reused here. diff --git a/runner/pkg/discovery/converters_test.go b/runner/pkg/discovery/converters_test.go new file mode 100644 index 0000000..79ea538 --- /dev/null +++ b/runner/pkg/discovery/converters_test.go @@ -0,0 +1,422 @@ +package discovery + +import ( + "strings" + "testing" + + appsv1 "k8s.io/api/apps/v1" + batchv1 "k8s.io/api/batch/v1" + corev1 "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/api/resource" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/labels" + "k8s.io/utils/ptr" +) + +func TestConvertDeployment(t *testing.T) { + d := &appsv1.Deployment{ + ObjectMeta: metav1.ObjectMeta{ + Name: "frontend", Namespace: "shop", ResourceVersion: "10", + Labels: map[string]string{"app": "frontend", "app.kubernetes.io/managed-by": "Helm"}, + }, + Spec: appsv1.DeploymentSpec{ + Replicas: ptr.To(int32(3)), + Template: corev1.PodTemplateSpec{ + Spec: corev1.PodSpec{Containers: []corev1.Container{{Name: "c", Image: "nginx:1.27"}}}, + }, + }, + Status: appsv1.DeploymentStatus{ReadyReplicas: 2}, + } + got, ok := convertDeployment(d) + if !ok { + t.Fatal("convertDeployment returned ok=false") + } + m := got.(map[string]any) + // Wire shape: `type` (not service_type) and `service_key` + // (`//`) are the keys the collector reads at + // + if m["type"] != "Deployment" { + t.Errorf("type = %v", m["type"]) + } + if m["service_key"] != "shop/Deployment/frontend" { + t.Errorf("service_key = %v", m["service_key"]) + } + if _, ok := m["config"].(map[string]any); !ok { + t.Errorf("config (renamed from service_config) = %T", m["config"]) + } + if m["total_pods"] != int32(3) { + t.Errorf("total_pods = %v", m["total_pods"]) + } + if m["ready_pods"] != int32(2) { + t.Errorf("ready_pods = %v", m["ready_pods"]) + } + if m["is_helm_release"] != true { + t.Errorf("is_helm_release should be true via app.kubernetes.io/managed-by") + } + // `update_time` is filled in here so the collector can compare against + // its DB row. + if _, ok := m["update_time"].(int64); !ok { + t.Errorf("update_time should be int64 millis; got %T", m["update_time"]) + } +} + +func TestConvertStatefulSet(t *testing.T) { + s := &appsv1.StatefulSet{ + ObjectMeta: metav1.ObjectMeta{Name: "db", Namespace: "shop"}, + Spec: appsv1.StatefulSetSpec{Replicas: ptr.To(int32(2))}, + Status: appsv1.StatefulSetStatus{ReadyReplicas: 1}, + } + got, _ := convertStatefulSet(s) + m := got.(map[string]any) + if m["type"] != "StatefulSet" || m["total_pods"] != int32(2) || m["ready_pods"] != int32(1) { + t.Errorf("StatefulSet conversion: %+v", m) + } + if m["service_key"] != "shop/StatefulSet/db" { + t.Errorf("service_key = %v", m["service_key"]) + } +} + +func TestConvertDaemonSet(t *testing.T) { + d := &appsv1.DaemonSet{ + ObjectMeta: metav1.ObjectMeta{Name: "node-exporter", Namespace: "monitoring"}, + Status: appsv1.DaemonSetStatus{DesiredNumberScheduled: 5, NumberReady: 4}, + } + got, _ := convertDaemonSet(d) + m := got.(map[string]any) + if m["total_pods"] != int32(5) || m["ready_pods"] != int32(4) { + t.Errorf("DaemonSet counts: total=%v ready=%v", m["total_pods"], m["ready_pods"]) + } +} + +func TestConvertNode(t *testing.T) { + n := &corev1.Node{ + ObjectMeta: metav1.ObjectMeta{Name: "node-1", Labels: map[string]string{"role": "worker"}}, + Spec: corev1.NodeSpec{ + Unschedulable: true, + Taints: []corev1.Taint{{Key: "k", Value: "v", Effect: corev1.TaintEffectNoSchedule}}, + }, + Status: corev1.NodeStatus{ + Capacity: corev1.ResourceList{ + corev1.ResourceCPU: resource.MustParse("4"), + corev1.ResourceMemory: resource.MustParse("8Gi"), + }, + Allocatable: corev1.ResourceList{ + corev1.ResourceCPU: resource.MustParse("3.5"), + }, + Conditions: []corev1.NodeCondition{ + {Type: corev1.NodeReady, Status: corev1.ConditionTrue, Reason: "KubeletReady"}, + }, + NodeInfo: corev1.NodeSystemInfo{ + Architecture: "arm64", + KubeletVersion: "v1.32.0", + KernelVersion: "6.1.0", + OSImage: "Ubuntu 22.04", + OperatingSystem: "linux", + }, + }, + } + got, _ := convertNode(n) + m := got.(map[string]any) + // Wire shape: the collector accesses k8s_data["node_creation_time"], + // "memory_capacity", "cpu_capacity", "node_info" by name. + if _, ok := m["node_creation_time"].(string); !ok { + t.Errorf("node_creation_time missing or wrong type: %T", m["node_creation_time"]) + } + if m["memory_capacity"].(int64) != 8*1024 { // 8 GiB → 8192 MiB + t.Errorf("memory_capacity = %v MB; want 8192", m["memory_capacity"]) + } + if m["cpu_capacity"].(float64) != 4.0 { + t.Errorf("cpu_capacity = %v cores; want 4", m["cpu_capacity"]) + } + if m["cpu_allocatable"].(float64) != 3.5 { + t.Errorf("cpu_allocatable = %v cores; want 3.5", m["cpu_allocatable"]) + } + // taints + conditions are emitted as comma-joined strings, not lists. + if !strings.Contains(m["conditions"].(string), "Ready:True") { + t.Errorf("conditions = %v; want substring Ready:True", m["conditions"]) + } + if !strings.Contains(m["taints"].(string), "k=v:NoSchedule") { + t.Errorf("taints = %v; want substring k=v:NoSchedule", m["taints"]) + } + info, _ := m["node_info"].(map[string]any) + system, _ := info["system"].(map[string]any) + if system["kubelet_version"] != "v1.32.0" { + t.Errorf("node_info.system.kubelet_version = %v", system["kubelet_version"]) + } +} + +func TestConvertNamespace(t *testing.T) { + n := &corev1.Namespace{ + ObjectMeta: metav1.ObjectMeta{ + Name: "shop", + Labels: map[string]string{"team": "frontend"}, + Annotations: map[string]string{"x": "y"}, + }, + Status: corev1.NamespaceStatus{Phase: corev1.NamespaceActive}, + } + got, _ := convertNamespace(n) + m := got.(map[string]any) + if m["name"] != "shop" || m["phase"] != "Active" { + t.Errorf("ns = %v", m) + } +} + +func TestConvertX_RejectsWrongType(t *testing.T) { + cases := []func(any) (any, bool){ + convertDeployment, convertStatefulSet, convertDaemonSet, convertNode, + convertNamespace, convertPod, convertReplicaSet, convertJob, convertCronJob, + } + for _, fn := range cases { + if _, ok := fn(&corev1.Service{}); ok { + t.Errorf("converter accepted wrong type") + } + } +} + +func TestConvertReplicaSet_FiltersZeroReplicas(t *testing.T) { + zero := &appsv1.ReplicaSet{ + ObjectMeta: metav1.ObjectMeta{Name: "old", Namespace: "n"}, + Spec: appsv1.ReplicaSetSpec{Replicas: ptr.To(int32(0))}, + } + if _, ok := convertReplicaSet(zero); ok { + t.Error("ReplicaSet with replicas=0 should be filtered out") + } + live := &appsv1.ReplicaSet{ + ObjectMeta: metav1.ObjectMeta{Name: "live", Namespace: "n"}, + Spec: appsv1.ReplicaSetSpec{Replicas: ptr.To(int32(3))}, + Status: appsv1.ReplicaSetStatus{ReadyReplicas: 3}, + } + got, ok := convertReplicaSet(live) + if !ok { + t.Fatal("expected live RS to be emitted") + } + m := got.(map[string]any) + if m["type"] != "ReplicaSet" || m["total_pods"] != int32(3) { + t.Errorf("rs = %v", m) + } + if m["service_key"] != "n/ReplicaSet/live" { + t.Errorf("service_key = %v", m["service_key"]) + } +} + +// TestConvertJob_BasicShape asserts the JobInfo wire shape — the collector's +// job branch reads service_key, created_at, updated_at, status (dict), +// job_data (dict), cpu_req, mem_req, completions directly +// . status.succeeded must round-trip through +// the `status` map, not be a top-level field. +func TestConvertJob_BasicShape(t *testing.T) { + j := &batchv1.Job{ + ObjectMeta: metav1.ObjectMeta{Name: "import", Namespace: "etl"}, + Spec: batchv1.JobSpec{Completions: ptr.To(int32(1))}, + Status: batchv1.JobStatus{Succeeded: 1, Failed: 0, Active: 0}, + } + got, ok := convertJob(j) + if !ok { + t.Fatal("expected Job to convert") + } + m := got.(map[string]any) + if m["completions"] != int32(1) { + t.Errorf("completions = %v", m["completions"]) + } + if m["service_key"] != "etl/Job/import" { + t.Errorf("service_key = %v", m["service_key"]) + } + if _, ok := m["updated_at"].(int64); !ok { + t.Errorf("updated_at should be int64 millis; got %T", m["updated_at"]) + } + if _, ok := m["created_at"].(string); !ok { + t.Errorf("created_at should be string (str(metadata.creation_timestamp))") + } + status, _ := m["status"].(map[string]any) + if status["succeeded"] != int32(1) { + t.Errorf("status.succeeded = %v", status["succeeded"]) + } + if _, ok := m["job_data"].(map[string]any); !ok { + t.Errorf("job_data missing; collector reads it at handler line 1410") + } +} + +func TestConvertCronJob_BasicShape(t *testing.T) { + c := &batchv1.CronJob{ + ObjectMeta: metav1.ObjectMeta{Name: "nightly", Namespace: "etl"}, + Spec: batchv1.CronJobSpec{ + Schedule: "0 0 * * *", + Suspend: ptr.To(false), + }, + } + got, ok := convertCronJob(c) + if !ok { + t.Fatal("expected CronJob to convert") + } + m := got.(map[string]any) + if m["type"] != "CronJob" || m["service_key"] != "etl/CronJob/nightly" { + t.Errorf("cron type/service_key = %v / %v", m["type"], m["service_key"]) + } + jd, _ := m["job_data"].(map[string]any) + if jd["schedule"] != "0 0 * * *" { + t.Errorf("job_data.schedule = %v", jd["schedule"]) + } +} + +func TestIsHelmRelease(t *testing.T) { + cases := []struct { + labels map[string]string + annotations map[string]string + want bool + }{ + {nil, nil, false}, + {map[string]string{"app.kubernetes.io/managed-by": "Helm"}, nil, true}, + {map[string]string{"app.kubernetes.io/managed-by": "Argo"}, nil, false}, + {map[string]string{"helm.sh/chart": "x"}, nil, true}, + {nil, map[string]string{"meta.helm.sh/release-name": "x"}, true}, + } + for _, c := range cases { + if got := isHelmRelease(c.labels, c.annotations); got != c.want { + t.Errorf("isHelmRelease(%v,%v) = %v; want %v", c.labels, c.annotations, got, c.want) + } + } +} + +// Regression: the legacy emitter shipped 11 keys under meta.config; the +// initial Go port shipped only 3 (labels, containers, owner). The UI's +// KubernetesWorkloads drilldown crashed in `volumes.length` because the +// key was undefined. Confirm the workload converter emits all 11 keys. +func TestConvertDeployment_EmitsAll11ConfigKeys(t *testing.T) { + d := &appsv1.Deployment{ + ObjectMeta: metav1.ObjectMeta{ + Name: "frontend", + Namespace: "shop", + Annotations: map[string]string{"team": "search"}, + }, + Spec: appsv1.DeploymentSpec{ + Replicas: ptr.To(int32(1)), + Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"app": "frontend"}}, + Template: corev1.PodTemplateSpec{ + Spec: corev1.PodSpec{ + Containers: []corev1.Container{{Name: "c", Image: "nginx"}}, + ServiceAccountName: "frontend-sa", + Volumes: []corev1.Volume{ + {Name: "data", VolumeSource: corev1.VolumeSource{ + PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{ClaimName: "data-pvc"}, + }}, + {Name: "tmp", VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{}}}, + }, + Tolerations: []corev1.Toleration{ + {Key: "spot", Operator: corev1.TolerationOpExists, Effect: corev1.TaintEffectNoSchedule}, + }, + Affinity: &corev1.Affinity{ + NodeAffinity: &corev1.NodeAffinity{ + PreferredDuringSchedulingIgnoredDuringExecution: []corev1.PreferredSchedulingTerm{{Weight: 1}}, + }, + }, + }, + }, + }, + } + got, ok := convertDeployment(d) + if !ok { + t.Fatal("convertDeployment ok=false") + } + cfg := got.(map[string]any)["config"].(map[string]any) + + want := []string{ + "labels", "containers", "owner", + "volumes", "toleration", "affinity", + "annotations", "service_account", + "qos_class", "ip", "conditions", + } + for _, k := range want { + if _, has := cfg[k]; !has { + t.Errorf("config[%q] missing — UI crashes when fields are undefined", k) + } + } + + // Volumes shape: PVC volume carries persistent_volume_claim.claim_name; + // EmptyDir / others carry only the name. + vols := cfg["volumes"].([]map[string]any) + if len(vols) != 2 { + t.Fatalf("volumes length = %d; want 2", len(vols)) + } + pvc, hasPVC := vols[0]["persistent_volume_claim"].(map[string]any) + if !hasPVC || pvc["claim_name"] != "data-pvc" { + t.Errorf("PVC volume missing claim_name; got %v", vols[0]) + } + if _, has := vols[1]["persistent_volume_claim"]; has { + t.Errorf("EmptyDir volume must NOT carry persistent_volume_claim; got %v", vols[1]) + } + + // service_account / annotations / toleration should be populated. + if cfg["service_account"] != "frontend-sa" { + t.Errorf("service_account = %v", cfg["service_account"]) + } + if ann := cfg["annotations"].(map[string]string); ann["team"] != "search" { + t.Errorf("annotations[team] = %v", ann) + } + tols := cfg["toleration"].([]map[string]any) + if len(tols) != 1 || tols[0]["key"] != "spot" { + t.Errorf("toleration = %v", cfg["toleration"]) + } + + // qos_class / ip / conditions stay nil/empty when no lookup is wired + // (test path). The Pod-lookup branch is covered separately below. + if cfg["qos_class"] != nil { + t.Errorf("qos_class without lookup should be nil; got %v", cfg["qos_class"]) + } + if cfg["ip"] != nil { + t.Errorf("ip without lookup should be nil; got %v", cfg["ip"]) + } + if conds := cfg["conditions"].([]map[string]any); len(conds) != 0 { + t.Errorf("conditions without lookup should be empty; got %v", conds) + } +} + +// When a Pod owned by the workload has reported status, qos_class / ip +// / conditions come from that Pod. +func TestServiceDict_PodLookupFillsRuntimeFields(t *testing.T) { + d := &appsv1.Deployment{ + ObjectMeta: metav1.ObjectMeta{Name: "api", Namespace: "ns"}, + Spec: appsv1.DeploymentSpec{ + Replicas: ptr.To(int32(1)), + Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"app": "api"}}, + Template: corev1.PodTemplateSpec{ + Spec: corev1.PodSpec{Containers: []corev1.Container{{Name: "c", Image: "nginx"}}}, + }, + }, + } + livePod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Namespace: "ns", + Labels: map[string]string{"app": "api"}, + }, + Status: corev1.PodStatus{ + QOSClass: corev1.PodQOSBurstable, + PodIP: "10.42.7.3", + Conditions: []corev1.PodCondition{ + {Type: corev1.PodReady, Status: corev1.ConditionTrue}, + {Type: corev1.PodScheduled, Status: corev1.ConditionTrue}, + }, + }, + } + lookup := func(ns string, _ labels.Selector) *corev1.Pod { + if ns != "ns" { + return nil + } + return livePod + } + + got, ok := newDeploymentConverter(lookup)(d) + if !ok { + t.Fatal("converter ok=false") + } + cfg := got.(map[string]any)["config"].(map[string]any) + if cfg["qos_class"] != "Burstable" { + t.Errorf("qos_class = %v; want Burstable", cfg["qos_class"]) + } + if cfg["ip"] != "10.42.7.3" { + t.Errorf("ip = %v", cfg["ip"]) + } + conds := cfg["conditions"].([]map[string]any) + if len(conds) != 2 || conds[0]["type"] != "Ready" || conds[0]["status"] != "True" { + t.Errorf("conditions = %v", conds) + } +} diff --git a/runner/pkg/discovery/helm.go b/runner/pkg/discovery/helm.go new file mode 100644 index 0000000..b10200c --- /dev/null +++ b/runner/pkg/discovery/helm.go @@ -0,0 +1,125 @@ +package discovery + +import ( + "bytes" + "compress/gzip" + "encoding/base64" + "encoding/json" + "fmt" + "io" + + corev1 "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/labels" + "k8s.io/apimachinery/pkg/selection" +) + +// Helm release detection. +// +// Helm v3 stores each release as a Secret in the release's namespace, with: +// +// type: helm.sh/release.v1 +// labels: owner=helm, status=deployed|... +// data["release"]: double-encoded — base64(gzip(json(release))) +// +// We reuse the existing Secret informer (filtered by label) so this +// doesn't add a new watch type. + +// HelmReleaseSelector returns the listoptions selector. Use it when wiring +// a tweakable list-watch (e.g. via informers.WithTweakListOptions) so the +// agent only ingests Helm secrets, not all secrets in the cluster (which +// would be a privilege escalation surface anyway). +func HelmReleaseSelector() labels.Selector { + r, _ := labels.NewRequirement("owner", selection.Equals, []string{"helm"}) + return labels.NewSelector().Add(*r) +} + +// helmReleaseEnvelope is the subset of the Helm release JSON we care about. +// The full schema is much bigger; we only extract identification + status. +type helmReleaseEnvelope struct { + Name string `json:"name"` + Namespace string `json:"namespace"` + Version int `json:"version"` + Info struct { + Status string `json:"status"` + FirstDeployed string `json:"first_deployed"` + LastDeployed string `json:"last_deployed"` + Description string `json:"description"` + } `json:"info"` + Chart struct { + Metadata struct { + Name string `json:"name"` + Version string `json:"version"` + AppVersion string `json:"appVersion"` + } `json:"metadata"` + } `json:"chart"` +} + +// convertHelmReleaseSecret turns a "owner=helm" Secret into the wire shape +// the collector consumes (HelmRelease model). Returns ok=false if the +// secret is not a Helm release or can't be decoded. +func convertHelmReleaseSecret(obj any) (any, bool) { + s, ok := obj.(*corev1.Secret) + if !ok { + return nil, false + } + if s.Type != "helm.sh/release.v1" { + return nil, false + } + raw, ok := s.Data["release"] + if !ok { + return nil, false + } + rel, err := decodeHelmRelease(raw) + if err != nil { + return nil, false + } + return map[string]any{ + "name": rel.Name, + "namespace": rel.Namespace, + "version": rel.Version, + "status": rel.Info.Status, + "first_deployed": rel.Info.FirstDeployed, + "last_deployed": rel.Info.LastDeployed, + "description": rel.Info.Description, + "chart_name": rel.Chart.Metadata.Name, + "chart_version": rel.Chart.Metadata.Version, + "app_version": rel.Chart.Metadata.AppVersion, + // Stable cross-revision key so the collector can dedupe to the latest. + "service_key": fmt.Sprintf("%s/%s", rel.Namespace, rel.Name), + }, true +} + +// decodeHelmRelease unwraps base64(gzip(json)). Helm v3 stores the data +// field as the raw bytes (already base64-decoded by the apiserver into +// .Data), but inside that's gzip-wrapped JSON with one extra base64 layer. +// +// raw can be either: +// - the decoded byte slice (k8s API has already base64-decoded once); in +// that case the bytes are still base64+gzip+json (yes, double-base64) +// - a string of base64 bytes +// +// We try both. +func decodeHelmRelease(raw []byte) (*helmReleaseEnvelope, error) { + // First decode: Helm wraps with an extra base64 layer. + decoded, err := base64.StdEncoding.DecodeString(string(raw)) + if err != nil { + // Maybe already raw (some installations). + decoded = raw + } + // Second: gunzip. + gz, err := gzip.NewReader(bytes.NewReader(decoded)) + if err != nil { + return nil, fmt.Errorf("gzip: %w", err) + } + defer func() { _ = gz.Close() }() + plain, err := io.ReadAll(gz) + if err != nil { + return nil, fmt.Errorf("gunzip: %w", err) + } + // Third: parse JSON (we only care about a subset). + var env helmReleaseEnvelope + if err := json.Unmarshal(plain, &env); err != nil { + return nil, fmt.Errorf("json: %w", err) + } + return &env, nil +} diff --git a/runner/pkg/discovery/helm_test.go b/runner/pkg/discovery/helm_test.go new file mode 100644 index 0000000..4e4b496 --- /dev/null +++ b/runner/pkg/discovery/helm_test.go @@ -0,0 +1,120 @@ +package discovery + +import ( + "bytes" + "compress/gzip" + "encoding/base64" + "encoding/json" + "testing" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +// helmRelease produces the same blob shape Helm v3 stores in the secret's +// data["release"] field: base64( gzip( json(release) ) ). +func encodeHelmRelease(t *testing.T, rel map[string]any) []byte { + t.Helper() + plain, _ := json.Marshal(rel) + var gz bytes.Buffer + w := gzip.NewWriter(&gz) + if _, err := w.Write(plain); err != nil { + t.Fatal(err) + } + _ = w.Close() + return []byte(base64.StdEncoding.EncodeToString(gz.Bytes())) +} + +func TestConvertHelmReleaseSecret_HappyPath(t *testing.T) { + blob := encodeHelmRelease(t, map[string]any{ + "name": "loki", + "namespace": "monitoring", + "version": 3, + "info": map[string]any{ + "status": "deployed", + "first_deployed": "2025-01-01T00:00:00Z", + "last_deployed": "2025-04-15T12:00:00Z", + "description": "Upgrade complete", + }, + "chart": map[string]any{ + "metadata": map[string]any{ + "name": "loki", + "version": "5.41.0", + "appVersion": "2.9.4", + }, + }, + }) + sec := &corev1.Secret{ + ObjectMeta: metav1.ObjectMeta{Name: "sh.helm.release.v1.loki.v3", Namespace: "monitoring", Labels: map[string]string{"owner": "helm"}}, + Type: "helm.sh/release.v1", + Data: map[string][]byte{"release": blob}, + } + got, ok := convertHelmReleaseSecret(sec) + if !ok { + t.Fatal("expected ok=true for valid helm secret") + } + m := got.(map[string]any) + if m["name"] != "loki" || m["namespace"] != "monitoring" || m["version"] != 3 { + t.Errorf("identification: %+v", m) + } + if m["status"] != "deployed" || m["chart_name"] != "loki" || m["chart_version"] != "5.41.0" { + t.Errorf("chart info: %+v", m) + } + if m["service_key"] != "monitoring/loki" { + t.Errorf("service_key = %v", m["service_key"]) + } +} + +func TestConvertHelmReleaseSecret_RejectsWrongType(t *testing.T) { + if _, ok := convertHelmReleaseSecret(&corev1.Pod{}); ok { + t.Error("non-Secret object should return ok=false") + } + notHelm := &corev1.Secret{ + Type: "Opaque", + Data: map[string][]byte{"release": []byte("ignored")}, + } + if _, ok := convertHelmReleaseSecret(notHelm); ok { + t.Error("non-helm Secret should return ok=false") + } +} + +func TestConvertHelmReleaseSecret_NoReleaseField(t *testing.T) { + s := &corev1.Secret{ + Type: "helm.sh/release.v1", + Data: map[string][]byte{}, + } + if _, ok := convertHelmReleaseSecret(s); ok { + t.Error("missing release data should return ok=false") + } +} + +func TestConvertHelmReleaseSecret_BadBlobSwallowed(t *testing.T) { + s := &corev1.Secret{ + Type: "helm.sh/release.v1", + Data: map[string][]byte{"release": []byte("not-base64-and-not-gzip")}, + } + if _, ok := convertHelmReleaseSecret(s); ok { + t.Error("undecodable blob should return ok=false (logged elsewhere)") + } +} + +func TestHelmReleaseSelector(t *testing.T) { + sel := HelmReleaseSelector() + matches := sel.Matches(testLabels{"owner": "helm"}) + if !matches { + t.Error("selector should match owner=helm") + } + if sel.Matches(testLabels{"owner": "argo"}) { + t.Error("selector should NOT match owner=argo") + } +} + +// testLabels is a tiny labels.Labels impl for selector tests. +type testLabels map[string]string + +func (l testLabels) Has(k string) bool { _, ok := l[k]; return ok } +func (l testLabels) Get(k string) string { return l[k] } +func (l testLabels) Lookup(k string) (string, bool) { + v, ok := l[k] + return v, ok +} diff --git a/runner/pkg/discovery/service.go b/runner/pkg/discovery/service.go new file mode 100644 index 0000000..3c381d4 --- /dev/null +++ b/runner/pkg/discovery/service.go @@ -0,0 +1,432 @@ +package discovery + +import ( + "context" + "errors" + "fmt" + "log/slog" + "sync" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/labels" + "k8s.io/client-go/informers" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/tools/cache" + "k8s.io/client-go/util/workqueue" +) + +// Service drives all resource informers and posts changes through the Sink. +// +// Lifecycle (Run blocks): +// 1. Start the shared informer factory. +// 2. Wait for caches to sync. +// 3. Emit a full snapshot per registered resource type. +// 4. Start workers that consume the per-resource workqueues for incremental +// updates (Add/Update/Delete events captured by the informer handlers). +// 5. Every Resync interval, re-emit a full snapshot. +// 6. Stop on ctx cancellation. +// +// Phase-4 note: today we only implement the Pod converter end-to-end. Other +// resource handlers (Deployment, StatefulSet, DaemonSet, ReplicaSet, Job, +// CronJob, Node, Namespace, Helm releases) follow the same shape; each one +// is its own follow-up so we can golden-diff per resource. +type Service struct { + cs kubernetes.Interface + sink *Sink + factory informers.SharedInformerFactory + resync time.Duration + logger *slog.Logger + + handlers []*resourceHandler +} + +// resourceHandler ties an informer to a workqueue and a converter. +type resourceHandler struct { + typ Type + informer cache.SharedIndexInformer + queue workqueue.TypedRateLimitingInterface[string] + converter func(obj any) (wireItem any, ok bool) +} + +func NewService(cs kubernetes.Interface, sink *Sink, resync time.Duration, logger *slog.Logger) *Service { + if resync <= 0 { + resync = 30 * time.Minute + } + if logger == nil { + logger = slog.Default() + } + // One factory shared across all resources; each resource registers its + // own informer + handler. SharedInformerFactory dedups list/watch traffic. + factory := informers.NewSharedInformerFactory(cs, resync) + return &Service{ + cs: cs, + sink: sink, + factory: factory, + resync: resync, + logger: logger, + } +} + +// RegisterPods wires the Pod informer + workqueue + converter. Call before Run(). +func (s *Service) RegisterPods() { + s.register(s.factory.Core().V1().Pods().Informer(), TypeService, convertPod) +} + +// RegisterDeployments wires the Deployment informer. The converter is +// bound to the Pod informer's lister so workload records can carry the +// qos_class / ip / conditions fields read off a representative Pod — +// mirroring the legacy discovery emission path. +func (s *Service) RegisterDeployments() { + s.register(s.factory.Apps().V1().Deployments().Informer(), TypeService, newDeploymentConverter(s.podLookup())) +} + +// RegisterStatefulSets wires the StatefulSet informer. +func (s *Service) RegisterStatefulSets() { + s.register(s.factory.Apps().V1().StatefulSets().Informer(), TypeService, newStatefulSetConverter(s.podLookup())) +} + +// RegisterDaemonSets wires the DaemonSet informer. +func (s *Service) RegisterDaemonSets() { + s.register(s.factory.Apps().V1().DaemonSets().Informer(), TypeService, newDaemonSetConverter(s.podLookup())) +} + +// RegisterNodes wires the Node informer. +func (s *Service) RegisterNodes() { + s.register(s.factory.Core().V1().Nodes().Informer(), TypeNode, convertNode) +} + +// RegisterNamespaces wires the Namespace informer. +func (s *Service) RegisterNamespaces() { + s.register(s.factory.Core().V1().Namespaces().Informer(), TypeNamespace, convertNamespace) +} + +// RegisterReplicaSets wires the ReplicaSet informer (filters out replicas==0). +func (s *Service) RegisterReplicaSets() { + s.register(s.factory.Apps().V1().ReplicaSets().Informer(), TypeService, newReplicaSetConverter(s.podLookup())) +} + +// podLookup builds a `(namespace, labels.Selector) -> *Pod` closure +// backed by the Pod informer's indexer. Returns nil when the Pod +// informer hasn't been registered (RegisterPods must run first; the +// rest of RegisterAll already enforces that ordering). +// +// The closure scans namespace-scoped Pods and returns the first match +// with a non-empty PodStatus — running Pods carry QOSClass / PodIP / +// Conditions which are exactly what callers need. Returning the first +// match is fine: for Deployments / StatefulSets / DaemonSets all +// replicas share the same template, so qos_class is uniform per +// workload, ip is per-replica but the UI only renders one workload +// summary, and conditions reflect a single Pod's state. +func (s *Service) podLookup() podLookupFn { + // SharedInformerFactory.Pods().Informer() is idempotent and returns + // the same shared instance RegisterPods() wired up earlier, so this + // works regardless of registration order. + indexer := s.factory.Core().V1().Pods().Informer().GetIndexer() + return func(namespace string, selector labels.Selector) *corev1.Pod { + if indexer == nil || selector == nil { + return nil + } + items, err := indexer.ByIndex(cache.NamespaceIndex, namespace) + if err != nil { + return nil + } + for _, raw := range items { + pod, ok := raw.(*corev1.Pod) + if !ok { + continue + } + if !selector.Matches(labels.Set(pod.Labels)) { + continue + } + // Prefer a Pod that's actually had status reported — qos_class + // / ip / conditions stay empty on freshly-created Pods. + if pod.Status.QOSClass != "" || pod.Status.PodIP != "" || len(pod.Status.Conditions) > 0 { + return pod + } + } + return nil + } +} + +// RegisterJobs wires the Job informer (under "job" type). +func (s *Service) RegisterJobs() { + s.register(s.factory.Batch().V1().Jobs().Informer(), TypeJob, convertJob) +} + +// RegisterCronJobs wires the CronJob informer (under "job" type). +func (s *Service) RegisterCronJobs() { + s.register(s.factory.Batch().V1().CronJobs().Informer(), TypeJob, convertCronJob) +} + +// RegisterHelmReleases wires the Helm-release detector — a Secret informer +// scoped via the global SharedInformerFactory's tweakListOptions. We DO NOT +// watch all secrets here; the operator must construct the factory with +// label-selector scoping. Use NewServiceForHelm() to get a factory that's +// pre-scoped, or construct your own factory with informers.WithTweakListOptions. +func (s *Service) RegisterHelmReleases() { + s.register(s.factory.Core().V1().Secrets().Informer(), TypeHelmRelease, convertHelmReleaseSecret) +} + +// RegisterAll wires every supported resource (excluding Helm — see +// RegisterHelmReleases for why that needs separate setup). Convenience for +// production deployments where the operator wants the full snapshot. +func (s *Service) RegisterAll() { + s.RegisterPods() + s.RegisterDeployments() + s.RegisterStatefulSets() + s.RegisterDaemonSets() + s.RegisterReplicaSets() + s.RegisterJobs() + s.RegisterCronJobs() + s.RegisterNodes() + s.RegisterNamespaces() +} + +// register is the common path for any resource type. +func (s *Service) register(informer cache.SharedIndexInformer, typ Type, converter func(any) (any, bool)) { + queue := workqueue.NewTypedRateLimitingQueue(workqueue.DefaultTypedControllerRateLimiter[string]()) + _, _ = informer.AddEventHandler(cache.ResourceEventHandlerFuncs{ + AddFunc: func(obj any) { enqueue(queue, obj) }, + UpdateFunc: func(_, obj any) { enqueue(queue, obj) }, + DeleteFunc: func(obj any) { enqueue(queue, obj) }, + }) + s.handlers = append(s.handlers, &resourceHandler{ + typ: typ, + informer: informer, + queue: queue, + converter: converter, + }) +} + +// Run blocks until ctx is done. +func (s *Service) Run(ctx context.Context) error { + if len(s.handlers) == 0 { + return errors.New("discovery: no handlers registered") + } + + stopCh := make(chan struct{}) + go func() { <-ctx.Done(); close(stopCh) }() + + s.factory.Start(stopCh) + + // Wait for all caches to sync before emitting the first full snapshot. + if !cache.WaitForCacheSync(stopCh, s.cacheSyncFuncs()...) { + return errors.New("discovery: cache sync timed out") + } + s.logger.Info("discovery caches synced", "handlers", len(s.handlers)) + + // Initial full snapshot per resource type, then start workers + resync ticker. + if err := s.emitAllSnapshots(ctx); err != nil { + s.logger.Error("initial snapshot failed", "err", err) + } + + var wg sync.WaitGroup + for _, h := range s.handlers { + wg.Add(1) + go func(h *resourceHandler) { + defer wg.Done() + s.workerLoop(ctx, h) + }(h) + } + + // Periodic resync — re-emit full snapshots so the collector has a steady + // "complete world view" cadence regardless of in-between deltas. + wg.Add(1) + go func() { + defer wg.Done() + t := time.NewTicker(s.resync) + defer t.Stop() + for { + select { + case <-ctx.Done(): + return + case <-t.C: + if err := s.emitAllSnapshots(ctx); err != nil { + s.logger.Error("periodic snapshot failed", "err", err) + } + } + } + }() + + <-ctx.Done() + for _, h := range s.handlers { + h.queue.ShutDown() + } + wg.Wait() + return nil +} + +func (s *Service) cacheSyncFuncs() []cache.InformerSynced { + out := make([]cache.InformerSynced, 0, len(s.handlers)) + for _, h := range s.handlers { + out = append(out, h.informer.HasSynced) + } + return out +} + +// emitAllSnapshots posts one full-load envelope per resource type by walking +// each handler's indexer cache. +func (s *Service) emitAllSnapshots(ctx context.Context) error { + // Group items by Type since multiple handlers can share a Type (e.g. + // Pods + Deployments + StatefulSets all bucket under "service"). + byType := map[Type][]any{} + for _, h := range s.handlers { + for _, raw := range h.informer.GetIndexer().List() { + if item, ok := h.converter(raw); ok { + byType[h.typ] = append(byType[h.typ], item) + } + } + } + + batchID := fmt.Sprintf("snap-%d", time.Now().UnixNano()) + var firstErr error + for typ, items := range byType { + env := &Envelope{ + Type: typ, + Data: items, + FullLoad: true, + BatchID: batchID, + BatchSequence: 1, + TotalBatches: 1, + IsFirstBatch: true, + IsLastBatch: true, + } + if err := s.sink.Post(ctx, env); err != nil && firstErr == nil { + firstErr = err + } + } + return firstErr +} + +// workerLoop processes one queue item at a time. Each item becomes a tiny +// incremental update envelope (no batch metadata, so the collector treats it +// as INCREMENTAL — no cleanup operations). +func (s *Service) workerLoop(ctx context.Context, h *resourceHandler) { + for { + key, shutdown := h.queue.Get() + if shutdown { + return + } + s.processOne(ctx, h, key) + h.queue.Done(key) + } +} + +func (s *Service) processOne(ctx context.Context, h *resourceHandler, key string) { + raw, exists, err := h.informer.GetIndexer().GetByKey(key) + if err != nil { + h.queue.AddRateLimited(key) + s.logger.Error("indexer get", "key", key, "err", err) + return + } + if !exists { + // Deletion: emit a tombstone marker so the collector can mark + // resources inactive. Today the collector's incremental path doesn't + // process deletions — full snapshots on resync handle them. We log + // for now and skip. + s.logger.Debug("resource deleted (will reconcile on next snapshot)", "key", key) + h.queue.Forget(key) + return + } + item, ok := h.converter(raw) + if !ok { + h.queue.Forget(key) + return + } + env := &Envelope{Type: h.typ, Data: []any{item}} + if err := s.sink.Post(ctx, env); err != nil { + s.logger.Error("incremental post failed", "type", h.typ, "key", key, "err", err) + // Don't AddRateLimited on transient backend errors — next periodic + // snapshot will pick it up. Failed retries pile up otherwise. + } else { + // Clear any backoff accumulated from a prior indexer-get error. + h.queue.Forget(key) + } +} + +// enqueue puts a MetaNamespaceKey for obj on the queue, ignoring tombstones. +func enqueue(q workqueue.TypedRateLimitingInterface[string], obj any) { + key, err := cache.MetaNamespaceKeyFunc(obj) + if err != nil { + return + } + q.Add(key) +} + +// convertPod produces the service-of-type-Pod dict. Same wire shape as +// Deployment/StatefulSet/etc. — the collector reads pods through the +// same `_process_discovery` path, keying off `service_key` +// and `type=="Pod"` for the terminal-state +// branch. +func convertPod(obj any) (any, bool) { + p, ok := obj.(*corev1.Pod) + if !ok { + return nil, false + } + containers := make([]map[string]any, 0, len(p.Spec.Containers)) + for _, c := range p.Spec.Containers { + containers = append(containers, map[string]any{ + "name": c.Name, + "image": c.Image, + }) + } + owners := make([]map[string]any, 0, len(p.OwnerReferences)) + for _, o := range p.OwnerReferences { + owners = append(owners, map[string]any{"kind": o.Kind, "name": o.Name}) + } + // Pods don't have a "ready replica" semantic — use ready-container count + // for ready_pods and 1 for total_pods (it's a single pod). The UI uses + // these for service-detail rollups. + readyContainers := int32(0) + for _, cs := range p.Status.ContainerStatuses { + if cs.Ready { + readyContainers++ + } + } + return map[string]any{ + "name": p.Name, + "namespace": p.Namespace, + "type": "Pod", + "service_key": p.Namespace + "/Pod/" + p.Name, + "resource_version": parseResourceVersion(p.ObjectMeta), + "creation_time": p.CreationTimestamp.UTC().Format(time.RFC3339), + "update_time": time.Now().UTC().UnixMilli(), + "deleted": false, + "classification": "None", + "total_pods": 1, + "ready_pods": readyContainers, + "is_helm_release": isHelmRelease(p.Labels, p.Annotations), + "node_name": p.Spec.NodeName, + "status": string(p.Status.Phase), + "restart_count": podRestartCounts(p), + "status_dict": nil, + "config": map[string]any{ + "labels": nonNilLabels(p.Labels), + "containers": containers, + "owner": owners, + }, + }, true +} + +// podRestartCounts produces the per-container restart_count map. +func podRestartCounts(p *corev1.Pod) map[string]int32 { + out := make(map[string]int32, len(p.Status.ContainerStatuses)) + for _, cs := range p.Status.ContainerStatuses { + out[cs.Name] = cs.RestartCount + } + return out +} + +func parseResourceVersion(m metav1.ObjectMeta) int64 { + // Best-effort; collector treats it as monotonic per (namespace, name). + var n int64 + for _, c := range m.ResourceVersion { + if c < '0' || c > '9' { + return n + } + n = n*10 + int64(c-'0') + } + return n +} diff --git a/runner/pkg/discovery/service_envtest_integration_test.go b/runner/pkg/discovery/service_envtest_integration_test.go new file mode 100644 index 0000000..a2bf9f6 --- /dev/null +++ b/runner/pkg/discovery/service_envtest_integration_test.go @@ -0,0 +1,192 @@ +//go:build integration + +package discovery + +import ( + "context" + "encoding/json" + "io" + "log/slog" + "net/http" + "net/http/httptest" + "sync" + "testing" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + "sigs.k8s.io/controller-runtime/pkg/envtest" +) + +// Real-apiserver test: starts envtest (etcd + kube-apiserver), runs the +// discovery Service against it, creates Pods through the typed clientset, +// and asserts the sink receives correctly-shaped envelopes. +// +// envtest is the Go-native equivalent for testing K8s informers/controllers +// — it boots real kube-apiserver + etcd binaries, no Docker required. +// +// Prereq: KUBEBUILDER_ASSETS env points at a directory containing +// `kube-apiserver`, `etcd`, `kubectl`. The Makefile's `make test-integration` +// target wires this up via `setup-envtest`. +// +// Build tag `integration` keeps this out of the default `go test ./...` run. +func TestService_RealAPIServer_Pod_Lifecycle(t *testing.T) { + if testing.Short() { + t.Skip("integration test; -short") + } + + env := &envtest.Environment{} + cfg, err := env.Start() + if err != nil { + t.Fatalf("envtest.Start: %v", err) + } + t.Cleanup(func() { + if err := env.Stop(); err != nil { + t.Logf("envtest.Stop: %v", err) + } + }) + + cs, err := kubernetes.NewForConfig(cfg) + if err != nil { + t.Fatalf("clientset: %v", err) + } + + // Sink that captures all incoming envelopes. + var ( + mu sync.Mutex + envelopes []Envelope + ) + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + body, _ := io.ReadAll(r.Body) + var env Envelope + _ = json.Unmarshal(body, &env) + mu.Lock() + envelopes = append(envelopes, env) + mu.Unlock() + w.WriteHeader(http.StatusOK) + })) + t.Cleanup(srv.Close) + + sink := NewSink(srv.URL, "secret", "acc-it", "cluster-it", slog.Default()) + + // Pre-create one Pod before discovery starts so we exercise the + // initial-snapshot path (factory caches sync, then we walk the indexer). + preExisting := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{Name: "pre-existing", Namespace: "default", Labels: map[string]string{"role": "pre"}}, + Spec: corev1.PodSpec{ + Containers: []corev1.Container{{Name: "c", Image: "nginx:1.27"}}, + }, + } + if _, err := cs.CoreV1().Pods("default").Create(context.Background(), preExisting, metav1.CreateOptions{}); err != nil { + t.Fatalf("create pre-existing pod: %v", err) + } + + svc := NewService(cs, sink, time.Hour, slog.Default()) + svc.RegisterAll() // Pod + Deployment + StatefulSet + DaemonSet + Node + Namespace + + ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) + t.Cleanup(cancel) + done := make(chan error, 1) + go func() { done <- svc.Run(ctx) }() + + // 1) Wait for initial full-load snapshot containing pre-existing. + waitFor(t, &mu, &envelopes, 5*time.Second, func(envs []Envelope) bool { + for _, e := range envs { + if e.FullLoad && e.IsFirstBatch && hasPodNamed(e, "pre-existing") { + return true + } + } + return false + }, "initial snapshot containing pre-existing pod") + + // 2) Create a NEW Pod after discovery is running; informer event handler + // should enqueue it and the worker should post an incremental envelope + // (no batch metadata, FullLoad=false). + mu.Lock() + envelopes = nil // reset so the wait below isn't satisfied by snapshot + mu.Unlock() + + added := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{Name: "added-by-test", Namespace: "default", Labels: map[string]string{"role": "added"}}, + Spec: corev1.PodSpec{ + Containers: []corev1.Container{{Name: "c", Image: "busybox:1.36"}}, + }, + } + if _, err := cs.CoreV1().Pods("default").Create(context.Background(), added, metav1.CreateOptions{}); err != nil { + t.Fatalf("create added pod: %v", err) + } + + waitFor(t, &mu, &envelopes, 10*time.Second, func(envs []Envelope) bool { + for _, e := range envs { + if !e.FullLoad && hasPodNamed(e, "added-by-test") { + return true + } + } + return false + }, "incremental envelope for added-by-test") + + // 3) Verify converter shape on the live envelope. + mu.Lock() + defer mu.Unlock() + for _, e := range envelopes { + if hasPodNamed(e, "added-by-test") { + item := findPodItem(e, "added-by-test") + if item["service_type"] != "Pod" { + t.Errorf("service_type = %v; want Pod", item["service_type"]) + } + if item["namespace"] != "default" { + t.Errorf("namespace = %v", item["namespace"]) + } + cfg, _ := item["service_config"].(map[string]any) + labels, _ := cfg["labels"].(map[string]any) + if labels["role"] != "added" { + t.Errorf("labels.role = %v; want added", labels["role"]) + } + containers, _ := cfg["containers"].([]any) + if len(containers) != 1 { + t.Errorf("containers = %d; want 1", len(containers)) + } + return + } + } + t.Fatal("converter shape never asserted (envelope not found post-loop)") +} + +func hasPodNamed(e Envelope, name string) bool { + for _, raw := range e.Data { + m, _ := raw.(map[string]any) + if m != nil && m["name"] == name { + return true + } + } + return false +} + +func findPodItem(e Envelope, name string) map[string]any { + for _, raw := range e.Data { + m, _ := raw.(map[string]any) + if m != nil && m["name"] == name { + return m + } + } + return nil +} + +// waitFor polls until pred returns true or times out. Re-evaluates against +// a snapshot of the current envelopes slice on every tick. +func waitFor(t *testing.T, mu *sync.Mutex, envs *[]Envelope, timeout time.Duration, pred func([]Envelope) bool, what string) { + t.Helper() + deadline := time.Now().Add(timeout) + for time.Now().Before(deadline) { + mu.Lock() + snap := make([]Envelope, len(*envs)) + copy(snap, *envs) + mu.Unlock() + if pred(snap) { + return + } + time.Sleep(50 * time.Millisecond) + } + t.Fatalf("timeout waiting for: %s", what) +} diff --git a/runner/pkg/discovery/service_test.go b/runner/pkg/discovery/service_test.go new file mode 100644 index 0000000..8707a4f --- /dev/null +++ b/runner/pkg/discovery/service_test.go @@ -0,0 +1,117 @@ +package discovery + +import ( + "context" + "encoding/json" + "io" + "log/slog" + "net/http" + "net/http/httptest" + "sync" + "testing" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + fake "k8s.io/client-go/kubernetes/fake" +) + +// Drives the Service against a fake clientset pre-populated with one Pod +// and verifies that: +// 1. an initial full-load snapshot envelope arrives at the sink +// 2. the envelope's data contains the converted Pod +// 3. the converter produced the expected wire shape +func TestService_EmitsInitialFullSnapshot(t *testing.T) { + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: "frontend", + Namespace: "shop", + ResourceVersion: "42", + CreationTimestamp: metav1.Now(), + Labels: map[string]string{"app": "frontend"}, + OwnerReferences: []metav1.OwnerReference{{Kind: "ReplicaSet", Name: "frontend-rs-1"}}, + }, + Spec: corev1.PodSpec{ + NodeName: "node-1", + Containers: []corev1.Container{ + {Name: "web", Image: "nginx:1.27"}, + }, + }, + Status: corev1.PodStatus{Phase: corev1.PodRunning}, + } + + cs := fake.NewClientset(pod) + + var ( + mu sync.Mutex + envelopes []Envelope + ) + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + body, _ := io.ReadAll(r.Body) + var env Envelope + _ = json.Unmarshal(body, &env) + mu.Lock() + envelopes = append(envelopes, env) + mu.Unlock() + w.WriteHeader(http.StatusOK) + })) + defer srv.Close() + + sink := NewSink(srv.URL, "secret", "acc-1", "cluster-x", slog.Default()) + svc := NewService(cs, sink, time.Hour, slog.Default()) + svc.RegisterPods() + + ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) + defer cancel() + + done := make(chan error, 1) + go func() { done <- svc.Run(ctx) }() + + // Poll for the initial snapshot. + deadline := time.Now().Add(3 * time.Second) + for time.Now().Before(deadline) { + mu.Lock() + n := len(envelopes) + mu.Unlock() + if n >= 1 { + break + } + time.Sleep(20 * time.Millisecond) + } + + cancel() + <-done + + mu.Lock() + defer mu.Unlock() + if len(envelopes) == 0 { + t.Fatal("no envelopes received") + } + + first := envelopes[0] + if first.Type != TypeService { + t.Errorf("type = %q; want service", first.Type) + } + if !first.FullLoad || !first.IsFirstBatch || !first.IsLastBatch { + t.Errorf("expected full-load batch envelope, got %+v", first) + } + dataArr, ok := first.Data.([]any) + if !ok { + t.Fatalf("data = %T; want []any (batched items)", first.Data) + } + if len(dataArr) != 1 { + t.Fatalf("data items = %d; want 1", len(dataArr)) + } + item, ok := dataArr[0].(map[string]any) + if !ok { + t.Fatalf("data[0] = %T; want map", dataArr[0]) + } + // Wire shape: `type` (not service_type) and computed `service_key` are + // what the collector reads at the backend. + if item["name"] != "frontend" || item["namespace"] != "shop" || item["type"] != "Pod" { + t.Errorf("converter shape: %+v", item) + } + if item["service_key"] != "shop/Pod/frontend" { + t.Errorf("service_key = %v", item["service_key"]) + } +} diff --git a/runner/pkg/discovery/sink.go b/runner/pkg/discovery/sink.go new file mode 100644 index 0000000..53f7173 --- /dev/null +++ b/runner/pkg/discovery/sink.go @@ -0,0 +1,174 @@ +// Package discovery is the in-cluster Kubernetes discovery subsystem. It +// drives a client-go shared informer factory, translates kube objects into +// the wire format the existing collector expects, and POSTs them to +// /v1/k8s/discovery on the backend. +// +// Wire envelope: +// +// { +// "type": "service" | "node" | "job" | "namespace" | "status", +// "data": [ ...resources... ], +// "full_load": bool, +// "batch_id": string, +// "batch_sequence": int, +// "total_batches": int, +// "is_first_batch": bool, +// "is_last_batch": bool, +// "metadata": { ... } +// } +// +// `tenant` and `cloud_account_id` are NOT included in the agent's payload — +// the collector reads them from auth headers and injects them server-side. +package discovery + +import ( + "bytes" + "compress/gzip" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "log/slog" + "net/http" + "strings" + "time" +) + +// Type is the discovery resource bucket the collector handles. +type Type string + +const ( + TypeService Type = "service" // Pods + workload kinds (Deployment/StatefulSet/DaemonSet/ReplicaSet/Rollout/DeploymentConfig) + TypeNode Type = "node" + TypeJob Type = "job" // Jobs + CronJobs + TypeNamespace Type = "namespace" + TypeHelmRelease Type = "helm_release" + // TypeAlertRules carries Prometheus alert rules (api/v1/rules + PrometheusRule + // CRDs) to the collector's alert_rules_handler, which UPSERTs into the + // `event_rules` table. + TypeAlertRules Type = "alert_rules" +) + +// Envelope is what gets POSTed to /v1/k8s/discovery. +// +// Data is `any` rather than `[]any` so resource types whose collector +// handlers expect a dict (e.g. alert_rules, where `rules.get("api_based_rules")` +// requires a Mapping, not a list) can pass the payload through unwrapped. +// Resource types that batch items (service / pod / node / namespace / +// helm_release) continue to set Data to a []any slice as before; JSON +// encoding handles either. +type Envelope struct { + Type Type `json:"type"` + Data any `json:"data"` + FullLoad bool `json:"full_load"` + BatchID string `json:"batch_id,omitempty"` + BatchSequence int `json:"batch_sequence,omitempty"` + TotalBatches int `json:"total_batches,omitempty"` + IsFirstBatch bool `json:"is_first_batch,omitempty"` + IsLastBatch bool `json:"is_last_batch,omitempty"` + Metadata map[string]any `json:"metadata,omitempty"` +} + +// Sink POSTs Envelope JSON to the backend. Concurrent-safe via the underlying +// http.Client; one Sink per agent process. +type Sink struct { + URL string // backend base URL, e.g. https://api.nudgebee.com + AuthSecret string // sent as Basic-Auth, same as relay + AccountID string // X-NB-Account-Id header + Cluster string // X-NB-Cluster header + HTTP *http.Client + Logger *slog.Logger +} + +func NewSink(backendURL, authSecret, accountID, cluster string, logger *slog.Logger) *Sink { + if logger == nil { + logger = slog.Default() + } + return &Sink{ + URL: strings.TrimRight(backendURL, "/"), + AuthSecret: authSecret, + AccountID: accountID, + Cluster: cluster, + HTTP: &http.Client{Timeout: 60 * time.Second}, + Logger: logger, + } +} + +// Post sends one envelope. Body is gzipped if larger than 16 KB. +func (s *Sink) Post(ctx context.Context, env *Envelope) error { + if s.URL == "" { + return errors.New("discovery: backend URL not configured") + } + + body, err := json.Marshal(env) + if err != nil { + return fmt.Errorf("marshal envelope: %w", err) + } + + var ( + reqBody io.Reader = bytes.NewReader(body) + contentEncoding string + bodyLen = len(body) + ) + if bodyLen > 16<<10 { + var buf bytes.Buffer + gw := gzip.NewWriter(&buf) + if _, err := gw.Write(body); err != nil { + return fmt.Errorf("gzip write: %w", err) + } + if err := gw.Close(); err != nil { + return fmt.Errorf("gzip close: %w", err) + } + reqBody = &buf + contentEncoding = "gzip" + bodyLen = buf.Len() + } + + req, err := http.NewRequestWithContext(ctx, http.MethodPost, s.URL+"/v1/k8s/discovery", reqBody) + if err != nil { + return err + } + req.Header.Set("Content-Type", "application/json") + if contentEncoding != "" { + req.Header.Set("Content-Encoding", contentEncoding) + } + if s.AuthSecret != "" { + req.Header.Set("Authorization", basicAuth(s.AuthSecret)) + } + if s.AccountID != "" { + req.Header.Set("X-NB-Account-Id", s.AccountID) + } + if s.Cluster != "" { + req.Header.Set("X-NB-Cluster", s.Cluster) + } + + resp, err := s.HTTP.Do(req) + if err != nil { + return fmt.Errorf("post: %w", err) + } + defer func() { _ = resp.Body.Close() }() + + if resp.StatusCode >= 400 { + respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 1024)) + return fmt.Errorf("HTTP %d: %s", resp.StatusCode, string(respBody)) + } + s.Logger.Debug("discovery posted", + "type", env.Type, "items", envelopeItemCount(env.Data), + "full_load", env.FullLoad, "bytes", bodyLen, "encoding", contentEncoding, + ) + return nil +} + +// envelopeItemCount returns the array length for list-shaped Data +// (services / pods / …) and 1 for dict-shaped Data (alert_rules); 0 +// when nil. Diagnostic-only, doesn't affect the wire payload. +func envelopeItemCount(d any) int { + if d == nil { + return 0 + } + if arr, ok := d.([]any); ok { + return len(arr) + } + return 1 +} diff --git a/runner/pkg/discovery/sink_test.go b/runner/pkg/discovery/sink_test.go new file mode 100644 index 0000000..fdebfdb --- /dev/null +++ b/runner/pkg/discovery/sink_test.go @@ -0,0 +1,113 @@ +package discovery + +import ( + "compress/gzip" + "context" + "encoding/json" + "io" + "log/slog" + "net/http" + "net/http/httptest" + "strings" + "testing" +) + +func TestSink_PostsExpectedEnvelope(t *testing.T) { + got := make(chan *http.Request, 1) + gotBody := make(chan []byte, 1) + + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + body, _ := io.ReadAll(r.Body) + got <- r + gotBody <- body + w.WriteHeader(http.StatusOK) + })) + defer srv.Close() + + s := NewSink(srv.URL, "secret", "acc-1", "cluster-x", slog.Default()) + env := &Envelope{ + Type: TypeService, + Data: []any{map[string]any{"name": "frontend"}}, + FullLoad: true, + IsFirstBatch: true, + IsLastBatch: true, + } + if err := s.Post(context.Background(), env); err != nil { + t.Fatalf("Post: %v", err) + } + + r := <-got + if r.URL.Path != "/v1/k8s/discovery" { + t.Errorf("path = %q", r.URL.Path) + } + if r.Header.Get("X-NB-Account-Id") != "acc-1" { + t.Errorf("X-NB-Account-Id = %q", r.Header.Get("X-NB-Account-Id")) + } + if r.Header.Get("X-NB-Cluster") != "cluster-x" { + t.Errorf("X-NB-Cluster = %q", r.Header.Get("X-NB-Cluster")) + } + // Bare base64, no "Basic " prefix — matches the legacy sink format. + if r.Header.Get("Authorization") == "" || strings.HasPrefix(r.Header.Get("Authorization"), "Basic ") { + t.Errorf("Authorization = %q (expected bare base64, no Basic prefix)", r.Header.Get("Authorization")) + } + + var decoded Envelope + if err := json.Unmarshal(<-gotBody, &decoded); err != nil { + t.Fatalf("unmarshal: %v", err) + } + if decoded.Type != TypeService || !decoded.FullLoad || !decoded.IsFirstBatch || !decoded.IsLastBatch { + t.Errorf("envelope = %+v", decoded) + } +} + +func TestSink_GzipsLargePayloads(t *testing.T) { + gotEncoding := make(chan string, 1) + gotBody := make(chan []byte, 1) + + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + gotEncoding <- r.Header.Get("Content-Encoding") + body, _ := io.ReadAll(r.Body) + gotBody <- body + w.WriteHeader(http.StatusOK) + })) + defer srv.Close() + + // Build a >16 KB payload. + data := make([]any, 0, 200) + for i := 0; i < 200; i++ { + data = append(data, map[string]any{"name": strings.Repeat("x", 200)}) + } + + s := NewSink(srv.URL, "", "", "", slog.Default()) + if err := s.Post(context.Background(), &Envelope{Type: TypeService, Data: data}); err != nil { + t.Fatalf("Post: %v", err) + } + + if enc := <-gotEncoding; enc != "gzip" { + t.Errorf("Content-Encoding = %q; want gzip", enc) + } + + // Verify it actually decompresses. + gz, err := gzip.NewReader(strings.NewReader(string(<-gotBody))) + if err != nil { + t.Fatalf("gzip.NewReader: %v", err) + } + defer func() { _ = gz.Close() }() + if _, err := io.ReadAll(gz); err != nil { + t.Fatalf("read decompressed: %v", err) + } +} + +func TestSink_PropagatesHTTPErrors(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusInternalServerError) + _, _ = w.Write([]byte("oops")) + })) + defer srv.Close() + + s := NewSink(srv.URL, "", "", "", slog.Default()) + err := s.Post(context.Background(), &Envelope{Type: TypeService}) + if err == nil || !strings.Contains(err.Error(), "500") { + t.Errorf("expected HTTP 500 error, got %v", err) + } +} diff --git a/runner/pkg/dispatch/dispatch.go b/runner/pkg/dispatch/dispatch.go new file mode 100644 index 0000000..309cd0b --- /dev/null +++ b/runner/pkg/dispatch/dispatch.go @@ -0,0 +1,448 @@ +// Package dispatch is the action router for inbound WS messages. +// +// It owns: +// - the action-name → handler registry +// - normal and high-priority worker pools (WEBSOCKET_THREADPOOL_SIZE + +// WEBSOCKET_HIGH_PRIORITY_THREADPOOL_SIZE) +// - the per-handler 180s deadline (WEBSOCKET_TASK_TIMEOUT_SECONDS) +// - auth check before any handler runs +// - response envelope construction +package dispatch + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "log/slog" + "strings" + "time" + + "golang.org/x/sync/semaphore" + + "github.com/nudgebee/nudgebee-agent/pkg/auth" + "github.com/nudgebee/nudgebee-agent/pkg/relay" +) + +// Handler is one action implementation. It receives a request-scoped context +// (already wrapped with the 180s deadline) and the action_params map. +// Return either data (success) or an error (will become status_code 500). +type Handler func(ctx context.Context, params map[string]any) (any, error) + +// Config tunes pool sizes and timeouts. +type Config struct { + NormalPoolSize int // default 10 (WEBSOCKET_THREADPOOL_SIZE) + HighPriorityPoolSize int // default 3 (WEBSOCKET_HIGH_PRIORITY_THREADPOOL_SIZE) + TaskTimeout time.Duration // default 180s + Logger *slog.Logger +} + +// Metrics is the optional metrics sink. Pass *metrics.Registry from main, or +// nil to disable. Kept as a narrow interface so pkg/dispatch doesn't depend +// on prometheus types. +type Metrics interface { + OnAction(action, status string) + OnActionDuration(action string, seconds float64) +} + +// TerminalHandler answers a TerminalRequest (pod-shell start/exec/read/close). +// The dispatcher routes to it when an inbound WS message has +// `action: start|exec|read|close` instead of `body.action_name`. +type TerminalHandler interface { + Handle(ctx context.Context, r *TerminalRequest) (resp any, status int) +} + +// GrafanaHandler answers a GrafanaRequest. Routed by the dispatcher when an +// inbound WS message has `method` + `url` (no `body.action_name`). The +// X-NB-Request-Type header decides Grafana-proxy vs API-proxy. +type GrafanaHandler interface { + HandleGrafana(ctx context.Context, r *GrafanaRequest) any + HandleAPI(ctx context.Context, baseURL string, r *GrafanaRequest) any + // HandlePrometheus serves X-NB-Request-Type=Prometheus payloads. + // The backend forwards every inbound Prometheus HTTP call through + // this path. + HandlePrometheus(ctx context.Context, r *GrafanaRequest) any +} + +// TerminalRequest is the wire shape of a pod-shell command. +type TerminalRequest struct { + Action string `json:"action"` + SessionID string `json:"session_id,omitempty"` + Name string `json:"name,omitempty"` + Namespace string `json:"namespace,omitempty"` + Command string `json:"command,omitempty"` + RequestID string `json:"request_id,omitempty"` +} + +// GrafanaRequest is the wire shape of a Grafana / API-proxy call. +type GrafanaRequest struct { + Method string `json:"method"` + URL string `json:"url"` + ContentLength int `json:"content_length,omitempty"` + Body string `json:"body,omitempty"` + Header map[string][]string `json:"header,omitempty"` +} + +// Dispatcher routes WS messages to handlers under semaphore-bounded concurrency. +type Dispatcher struct { + cfg Config + auth *auth.Validator + handlers map[string]Handler + metrics Metrics + + terminal TerminalHandler + grafana GrafanaHandler + + normal *semaphore.Weighted + high *semaphore.Weighted +} + +// SetTerminal wires the pod-shell handler. Optional; if unset the dispatcher +// returns 501 to TerminalRequests. +func (d *Dispatcher) SetTerminal(h TerminalHandler) { d.terminal = h } + +// SetGrafana wires the Grafana proxy. Optional; if unset the dispatcher +// returns 501 to GrafanaRequests. +func (d *Dispatcher) SetGrafana(h GrafanaHandler) { d.grafana = h } + +// SetMetrics wires the metrics sink. Optional; safe to leave unset. +func (d *Dispatcher) SetMetrics(m Metrics) { d.metrics = m } + +// HandleTrusted invokes a registered handler without auth validation. Used by +// the task poller (pkg/tasks): tasks are pulled over an authenticated GET +// /v1/k8s/tasks call so the payload itself is implicitly trusted — no HMAC +// signature on the wire to verify. Same pool / timeout / metrics path as +// Handle, just no auth check and no relay response envelope. +// +// Returns (data, ok=true, error=nil) on success; (nil, ok=false, nil) when +// the action_name isn't registered; (nil, ok=true, error) on handler failure. +func (d *Dispatcher) HandleTrusted(ctx context.Context, actionName string, params map[string]any, highPriority bool) (any, bool, error) { + logger := d.cfg.Logger.With("action_name", actionName, "trusted", true) + handler, ok := d.handlers[actionName] + if !ok { + return nil, false, nil + } + pool := d.normal + if highPriority { + pool = d.high + } + if err := pool.Acquire(ctx, 1); err != nil { + return nil, true, fmt.Errorf("pool acquire: %w", err) + } + defer pool.Release(1) + + taskCtx, cancel := context.WithTimeout(ctx, d.cfg.TaskTimeout) + defer cancel() + + start := time.Now() + data, err := handler(taskCtx, params) + elapsed := time.Since(start) + if d.metrics != nil { + d.metrics.OnActionDuration(actionName, elapsed.Seconds()) + } + switch { + case errors.Is(err, context.DeadlineExceeded): + logger.Error("trusted task: timeout", "elapsed", elapsed) + if d.metrics != nil { + d.metrics.OnAction(actionName, "timeout") + } + return nil, true, err + case err != nil: + logger.Error("trusted task: handler error", "err", err, "elapsed", elapsed) + if d.metrics != nil { + d.metrics.OnAction(actionName, "error") + } + return nil, true, err + default: + logger.Info("trusted task: ok", "elapsed", elapsed) + if d.metrics != nil { + d.metrics.OnAction(actionName, "ok") + } + return data, true, nil + } +} + +// New builds a Dispatcher. Pass nil for auth to disable auth (test only). +func New(cfg Config, v *auth.Validator, handlers map[string]Handler) *Dispatcher { + if cfg.NormalPoolSize <= 0 { + cfg.NormalPoolSize = 10 + } + if cfg.HighPriorityPoolSize <= 0 { + cfg.HighPriorityPoolSize = 3 + } + if cfg.TaskTimeout <= 0 { + cfg.TaskTimeout = 180 * time.Second + } + if cfg.Logger == nil { + cfg.Logger = slog.Default() + } + return &Dispatcher{ + cfg: cfg, + auth: v, + handlers: handlers, + normal: semaphore.NewWeighted(int64(cfg.NormalPoolSize)), + high: semaphore.NewWeighted(int64(cfg.HighPriorityPoolSize)), + } +} + +// Handle is the entry point passed to relay.NewClient. It parses the inbound +// envelope, authenticates, dispatches to a handler under the appropriate pool, +// and writes the response back. +// +// Three inbound shapes (tried in order): +// +// ExternalActionRequest — has `body.action_name`. Regular action flow. +// GrafanaRequest — has `method` + `url`. HTTP-proxy flow. +// TerminalRequest — has `action: start|exec|read|close`. Pod-shell flow. +// +// Grafana + Terminal responses must be JSON-stringified into AgentResponse.Data +// because the relay's grafana / interactive-shell handlers unmarshal it as +// `data string` (relay-server/pkg/server/handlers/{grafana,ws}.go). +func (d *Dispatcher) Handle(ctx context.Context, msg []byte, send relay.SendFunc) { + // Probe shape with a single permissive parse — we look for the + // discriminating fields without committing to a struct. + var probe struct { + Body *json.RawMessage `json:"body,omitempty"` + Action string `json:"action,omitempty"` + Method string `json:"method,omitempty"` + URL string `json:"url,omitempty"` + } + _ = json.Unmarshal(msg, &probe) // tolerant; downstream paths will reject bad JSON + + switch { + case probe.Body != nil: + // regular action flow — fall through to body parser below. + case probe.Method != "" && probe.URL != "": + d.handleGrafana(ctx, msg, send) + return + case probe.Action == "start" || probe.Action == "exec" || probe.Action == "read" || probe.Action == "close": + d.handleTerminal(ctx, msg, send) + return + } + + // Parse the envelope as a generic map first so we can pass the body to the + // auth validator (which needs the raw map for canonical-JSON re-encoding). + var raw struct { + Body map[string]any `json:"body"` + Signature string `json:"signature,omitempty"` + PartialAuthA string `json:"partial_auth_a,omitempty"` + PartialAuthB string `json:"partial_auth_b,omitempty"` + RequestID string `json:"request_id,omitempty"` + } + if err := json.Unmarshal(msg, &raw); err != nil { + d.cfg.Logger.Error("dispatch: failed to parse envelope", "err", err) + return + } + + actionName, _ := raw.Body["action_name"].(string) + logger := d.cfg.Logger.With("action_name", actionName, "request_id", raw.RequestID) + + if d.auth != nil { + authReq := &auth.Request{ + Body: raw.Body, + ActionName: actionName, + Signature: raw.Signature, + PartialAuthA: raw.PartialAuthA, + PartialAuthB: raw.PartialAuthB, + } + if err := d.auth.Validate(authReq); err != nil { + logger.Warn("dispatch: auth rejected", "err", err) + d.respond(send, raw.RequestID, 401, map[string]any{"error": err.Error()}) + return + } + } + + handler, ok := d.handlers[actionName] + if !ok { + logger.Warn("dispatch: unknown action") + d.respond(send, raw.RequestID, 404, map[string]any{"error": "action not registered: " + actionName}) + return + } + + params, _ := raw.Body["action_params"].(map[string]any) + highPriority := isHighPriority(params) + pool := d.normal + if highPriority { + pool = d.high + } + + if err := pool.Acquire(ctx, 1); err != nil { + logger.Warn("dispatch: pool acquire failed", "err", err) + d.respond(send, raw.RequestID, 503, map[string]any{"error": "agent overloaded"}) + return + } + defer pool.Release(1) + + taskCtx, cancel := context.WithTimeout(ctx, d.cfg.TaskTimeout) + defer cancel() + + start := time.Now() + data, err := handler(taskCtx, params) + elapsed := time.Since(start) + + if d.metrics != nil { + d.metrics.OnActionDuration(actionName, elapsed.Seconds()) + } + switch { + case errors.Is(err, context.DeadlineExceeded): + logger.Error("dispatch: task timeout", "elapsed", elapsed) + d.respond(send, raw.RequestID, 504, map[string]any{"error": "task timeout"}) + if d.metrics != nil { + d.metrics.OnAction(actionName, "timeout") + } + case err != nil: + logger.Error("dispatch: handler error", "err", err, "elapsed", elapsed) + d.respond(send, raw.RequestID, 500, map[string]any{"error": err.Error()}) + if d.metrics != nil { + d.metrics.OnAction(actionName, "error") + } + default: + logger.Info("dispatch: action ok", "elapsed", elapsed) + d.respond(send, raw.RequestID, 200, data) + if d.metrics != nil { + d.metrics.OnAction(actionName, "ok") + } + } +} + +func (d *Dispatcher) respond(send relay.SendFunc, requestID string, status int, data any) { + if requestID == "" { + // Fire-and-forget request; no response expected. + return + } + if err := send(&relay.Response{ + Action: "response", + RequestID: requestID, + StatusCode: status, + Data: data, + OutputType: "actions", + }); err != nil { + d.cfg.Logger.Error("dispatch: send response failed", "err", err) + } +} + +// isHighPriority returns true when action_params.high_priority is set. +func isHighPriority(params map[string]any) bool { + if params == nil { + return false + } + v, _ := params["high_priority"].(bool) + return v +} + +// handleTerminal answers a TerminalRequest. The reply envelope MUST have +// `data` as a JSON-stringified TerminalResponse and `output_type=Terminal`, +// or the relay's interactive-shell handler 500s on +// `cannot unmarshal object into Go struct field AgentResponse.data of type +// string`. +func (d *Dispatcher) handleTerminal(ctx context.Context, msg []byte, send relay.SendFunc) { + var req TerminalRequest + if err := json.Unmarshal(msg, &req); err != nil { + d.cfg.Logger.Error("dispatch: terminal payload parse failed", "err", err) + return + } + logger := d.cfg.Logger.With("kind", "terminal", "action", req.Action, "session_id", req.SessionID, "request_id", req.RequestID) + if d.terminal == nil { + logger.Warn("dispatch: terminal handler not configured") + d.respondString(send, req.RequestID, 501, map[string]any{"error": "pod_shell not enabled on this agent"}, "Terminal") + return + } + resp, status := d.terminal.Handle(ctx, &req) + logger.Info("dispatch: terminal action ok", "status", status) + d.respondString(send, req.RequestID, status, resp, "Terminal") +} + +// handleGrafana answers a GrafanaRequest. The X-NB-Request-Type header +// chooses Grafana proxy vs API proxy. Reply envelope +// has `data` as JSON-stringified GrafanaResponse and `output_type=Grafana`. +// +// The relay reads the request_id from the X-Nb-Request-Id header +// — not from a top-level field — so we extract it from +// the request headers. +func (d *Dispatcher) handleGrafana(ctx context.Context, msg []byte, send relay.SendFunc) { + var req GrafanaRequest + if err := json.Unmarshal(msg, &req); err != nil { + d.cfg.Logger.Error("dispatch: grafana payload parse failed", "err", err) + return + } + requestID := firstHeader(req.Header, "X-Nb-Request-Id") + requestType := firstHeader(req.Header, "X-NB-Request-Type") + if requestType == "" { + requestType = "Grafana" + } + logger := d.cfg.Logger.With("kind", "grafana", "request_type", requestType, "request_id", requestID, "url", req.URL) + + if d.grafana == nil { + logger.Warn("dispatch: grafana handler not configured") + d.respondString(send, requestID, 501, map[string]any{"error": "grafana proxy not enabled on this agent"}, "Grafana") + return + } + var resp any + switch requestType { + case "APIProxy": + base := firstHeader(req.Header, "X-API-Base-URL") + resp = d.grafana.HandleAPI(ctx, base, &req) + case "Prometheus": + // collector-server's `/prometheus-v2/*` route forwards every + // Prometheus HTTP call this way (relay-server/pkg/utils/utils.go:77). + // We proxy to the agent's configured PROMETHEUS_URL — same upstream + // the prometheus_enricher action queries, just exposed as raw HTTP + // for callers that need the full /api/v1/* surface. + resp = d.grafana.HandlePrometheus(ctx, &req) + default: // "Grafana" + resp = d.grafana.HandleGrafana(ctx, &req) + } + logger.Info("dispatch: grafana ok") + d.respondString(send, requestID, 200, resp, "Grafana") +} + +// respondString JSON-stringifies data, then sends a Response envelope with +// Data=string(jsonBytes) and the requested OutputType. +func (d *Dispatcher) respondString(send relay.SendFunc, requestID string, status int, data any, outputType string) { + if requestID == "" { + // Fire-and-forget — relay didn't ask for a reply. + return + } + encoded, err := json.Marshal(data) + if err != nil { + d.cfg.Logger.Error("dispatch: marshal stringified data failed", "err", err, "request_id", requestID) + return + } + if err := send(&relay.Response{ + Action: "response", + RequestID: requestID, + StatusCode: status, + Data: string(encoded), + OutputType: outputType, + }); err != nil { + d.cfg.Logger.Error("dispatch: send stringified response failed", "err", err) + } +} + +// firstHeader returns the first value of a header (case-insensitive), +// matching incoming_event.header.get(name)[0]. +func firstHeader(h map[string][]string, key string) string { + for k, v := range h { + if strings.EqualFold(k, key) && len(v) > 0 { + return v[0] + } + } + return "" +} + +// SimpleHandler wraps a func(params)->(data, err) for callers who don't need ctx. +func SimpleHandler(fn func(params map[string]any) (any, error)) Handler { + return func(_ context.Context, params map[string]any) (any, error) { + return fn(params) + } +} + +// MustEncodeJSON is a convenience for handlers that already have a JSON-marshalable +// result; mainly for sanity-checking that values can round-trip. +func MustEncodeJSON(v any) []byte { + b, err := json.Marshal(v) + if err != nil { + panic(fmt.Sprintf("MustEncodeJSON: %v", err)) + } + return b +} diff --git a/runner/pkg/dispatch/dispatch_test.go b/runner/pkg/dispatch/dispatch_test.go new file mode 100644 index 0000000..cf371c4 --- /dev/null +++ b/runner/pkg/dispatch/dispatch_test.go @@ -0,0 +1,441 @@ +package dispatch + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "sync" + "testing" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/auth" + "github.com/nudgebee/nudgebee-agent/pkg/relay" +) + +// captureSend records every Response written so tests can inspect them. +type captureSend struct { + mu sync.Mutex + calls []*relay.Response +} + +func (c *captureSend) send(r *relay.Response) error { + c.mu.Lock() + defer c.mu.Unlock() + c.calls = append(c.calls, r) + return nil +} + +func (c *captureSend) only(t *testing.T) *relay.Response { + t.Helper() + c.mu.Lock() + defer c.mu.Unlock() + if len(c.calls) != 1 { + t.Fatalf("expected 1 response, got %d: %+v", len(c.calls), c.calls) + } + return c.calls[0] +} + +func envelope(t *testing.T, action, requestID string, params map[string]any) []byte { + t.Helper() + body := map[string]any{"action_name": action, "timestamp": int64(1700000000)} + if params != nil { + body["action_params"] = params + } + out, err := json.Marshal(map[string]any{"body": body, "request_id": requestID}) + if err != nil { + t.Fatal(err) + } + return out +} + +func TestDispatch_HappyPath(t *testing.T) { + d := New(Config{}, nil, map[string]Handler{ + "ping": SimpleHandler(func(params map[string]any) (any, error) { + return map[string]any{"pong": true}, nil + }), + }) + cap := &captureSend{} + d.Handle(context.Background(), envelope(t, "ping", "req-1", nil), cap.send) + + r := cap.only(t) + if r.StatusCode != 200 || r.RequestID != "req-1" || r.Action != "response" { + t.Errorf("response = %+v", r) + } +} + +func TestDispatch_UnknownAction(t *testing.T) { + d := New(Config{}, nil, map[string]Handler{}) + cap := &captureSend{} + d.Handle(context.Background(), envelope(t, "no_such_action", "req-2", nil), cap.send) + + r := cap.only(t) + if r.StatusCode != 404 { + t.Errorf("expected 404, got %d", r.StatusCode) + } +} + +func TestDispatch_HandlerError(t *testing.T) { + d := New(Config{}, nil, map[string]Handler{ + "boom": SimpleHandler(func(params map[string]any) (any, error) { + return nil, errors.New("kaboom") + }), + }) + cap := &captureSend{} + d.Handle(context.Background(), envelope(t, "boom", "req-3", nil), cap.send) + + r := cap.only(t) + if r.StatusCode != 500 { + t.Errorf("expected 500, got %d", r.StatusCode) + } +} + +func TestDispatch_TaskTimeout(t *testing.T) { + d := New(Config{TaskTimeout: 50 * time.Millisecond}, nil, map[string]Handler{ + "slow": Handler(func(ctx context.Context, params map[string]any) (any, error) { + select { + case <-time.After(500 * time.Millisecond): + return "done", nil + case <-ctx.Done(): + return nil, ctx.Err() + } + }), + }) + cap := &captureSend{} + d.Handle(context.Background(), envelope(t, "slow", "req-4", nil), cap.send) + + r := cap.only(t) + if r.StatusCode != 504 { + t.Errorf("expected 504, got %d", r.StatusCode) + } +} + +func TestDispatch_NoRequestIDIsFireAndForget(t *testing.T) { + d := New(Config{}, nil, map[string]Handler{ + "ping": SimpleHandler(func(params map[string]any) (any, error) { + return "ok", nil + }), + }) + cap := &captureSend{} + d.Handle(context.Background(), envelope(t, "ping", "" /* no request_id */, nil), cap.send) + + cap.mu.Lock() + defer cap.mu.Unlock() + if len(cap.calls) != 0 { + t.Errorf("fire-and-forget should not respond; got %d responses", len(cap.calls)) + } +} + +func TestDispatch_HighPriorityPoolSeparate(t *testing.T) { + // Saturate the normal pool; verify that a high_priority action still runs. + block := make(chan struct{}) + d := New(Config{NormalPoolSize: 1, HighPriorityPoolSize: 1}, nil, map[string]Handler{ + "slow": Handler(func(ctx context.Context, _ map[string]any) (any, error) { + <-block + return "done", nil + }), + "fast": SimpleHandler(func(_ map[string]any) (any, error) { + return "ok", nil + }), + }) + + // Saturate the normal pool with a slow request. + go d.Handle(context.Background(), envelope(t, "slow", "req-slow", nil), func(*relay.Response) error { return nil }) + time.Sleep(20 * time.Millisecond) + + // Issue a high-priority fast request — should not be blocked. + cap := &captureSend{} + done := make(chan struct{}) + go func() { + d.Handle(context.Background(), envelope(t, "fast", "req-fast", map[string]any{"high_priority": true}), cap.send) + close(done) + }() + + select { + case <-done: + case <-time.After(500 * time.Millisecond): + t.Fatal("high-priority request was blocked behind saturated normal pool") + } + close(block) // let slow finish so it doesn't leak + + r := cap.only(t) + if r.StatusCode != 200 { + t.Errorf("expected 200, got %d", r.StatusCode) + } +} + +func TestDispatch_AuthRejected(t *testing.T) { + v := &auth.Validator{LightActions: map[string]struct{}{"allowed": {}}} + d := New(Config{}, v, map[string]Handler{ + "allowed": SimpleHandler(func(params map[string]any) (any, error) { return "ok", nil }), + "not_allowed": SimpleHandler(func(params map[string]any) (any, error) { return "ok", nil }), + }) + cap := &captureSend{} + d.Handle(context.Background(), envelope(t, "not_allowed", "req-5", nil), cap.send) + + r := cap.only(t) + if r.StatusCode != 401 { + t.Errorf("expected 401, got %d (%v)", r.StatusCode, r.Data) + } +} + +// Make sure fmt is used so the import isn't unused (helpful for debugging). +var _ = fmt.Sprintf + +// stubTerminal records the requests it receives and returns a fixed response. +type stubTerminal struct { + mu sync.Mutex + got []*TerminalRequest + status int + resp any +} + +func (s *stubTerminal) Handle(_ context.Context, r *TerminalRequest) (any, int) { + s.mu.Lock() + defer s.mu.Unlock() + s.got = append(s.got, r) + if s.status == 0 { + s.status = 200 + } + if s.resp == nil { + s.resp = map[string]any{"session_id": "sess-1", "data": "hello", "exit": false} + } + return s.resp, s.status +} + +// stubGrafana records Grafana / APIProxy / Prometheus invocations. +type stubGrafana struct { + mu sync.Mutex + gotG []*GrafanaRequest + gotAPI []struct { + base string + req *GrafanaRequest + } + gotProm []*GrafanaRequest + resp any +} + +func (s *stubGrafana) HandleGrafana(_ context.Context, r *GrafanaRequest) any { + s.mu.Lock() + defer s.mu.Unlock() + s.gotG = append(s.gotG, r) + if s.resp == nil { + s.resp = map[string]any{"status_code": 200, "body": "ZHVtbXk=", "header": map[string][]string{"Content-Type": {"text/plain"}}} + } + return s.resp +} + +func (s *stubGrafana) HandleAPI(_ context.Context, base string, r *GrafanaRequest) any { + s.mu.Lock() + defer s.mu.Unlock() + s.gotAPI = append(s.gotAPI, struct { + base string + req *GrafanaRequest + }{base, r}) + if s.resp == nil { + s.resp = map[string]any{"status_code": 200, "body": "YXBp", "header": map[string][]string{}} + } + return s.resp +} + +func (s *stubGrafana) HandlePrometheus(_ context.Context, r *GrafanaRequest) any { + s.mu.Lock() + defer s.mu.Unlock() + s.gotProm = append(s.gotProm, r) + if s.resp == nil { + s.resp = map[string]any{"status_code": 200, "body": "cHJvbQ==", "header": map[string][]string{}} + } + return s.resp +} + +// TestDispatch_TerminalShape covers the bug that took pod_shell down: the +// agent was silently dropping TerminalRequests, then the relay 500'd on +// `cannot unmarshal object into Go struct field AgentResponse.data of type +// string` because the agent's later 404-style replies had data as an object. +// +// After the fix, TerminalRequests must: +// - hit the registered TerminalHandler +// - reply with output_type=Terminal and data as a JSON-stringified payload +func TestDispatch_TerminalShape(t *testing.T) { + stub := &stubTerminal{} + d := New(Config{}, nil, map[string]Handler{}) + d.SetTerminal(stub) + + msg, _ := json.Marshal(map[string]any{ + "action": "start", + "name": "rabbitmq", + "namespace": "nudgebee", + "request_id": "req-term-1", + }) + cap := &captureSend{} + d.Handle(context.Background(), msg, cap.send) + + if len(stub.got) != 1 || stub.got[0].Action != "start" || stub.got[0].Name != "rabbitmq" { + t.Fatalf("terminal handler not called or wrong payload: %+v", stub.got) + } + r := cap.only(t) + if r.OutputType != "Terminal" { + t.Errorf("output_type = %q; want Terminal", r.OutputType) + } + if r.RequestID != "req-term-1" { + t.Errorf("request_id = %q; want req-term-1", r.RequestID) + } + // Data MUST be a JSON-stringified payload, not a raw object — the relay + // unmarshals AgentResponse.Data as `string`. + dataStr, ok := r.Data.(string) + if !ok { + t.Fatalf("Response.Data type = %T; want string", r.Data) + } + var inner map[string]any + if err := json.Unmarshal([]byte(dataStr), &inner); err != nil { + t.Fatalf("Data is not valid JSON: %v\n%s", err, dataStr) + } + if inner["session_id"] != "sess-1" { + t.Errorf("inner session_id = %v; want sess-1", inner["session_id"]) + } +} + +// TestDispatch_TerminalNoHandler covers the case where pod_shell is unwired +// (e.g. agent has no K8s client). We must still reply with the stringified +// shape and OutputType=Terminal — otherwise the relay 500s on the same +// unmarshal that broke shells in the first place. +func TestDispatch_TerminalNoHandler(t *testing.T) { + d := New(Config{}, nil, map[string]Handler{}) + msg, _ := json.Marshal(map[string]any{ + "action": "start", + "request_id": "req-term-2", + }) + cap := &captureSend{} + d.Handle(context.Background(), msg, cap.send) + + r := cap.only(t) + if r.StatusCode != 501 { + t.Errorf("status = %d; want 501", r.StatusCode) + } + if r.OutputType != "Terminal" { + t.Errorf("output_type = %q; want Terminal", r.OutputType) + } + if _, ok := r.Data.(string); !ok { + t.Errorf("Response.Data type = %T; want string", r.Data) + } +} + +// TestDispatch_GrafanaShape — same wire-shape contract as Terminal, but +// dispatched on `method` + `url` and routed via X-NB-Request-Type. +func TestDispatch_GrafanaShape(t *testing.T) { + stub := &stubGrafana{} + d := New(Config{}, nil, map[string]Handler{}) + d.SetGrafana(stub) + + t.Run("default Grafana path", func(t *testing.T) { + msg, _ := json.Marshal(map[string]any{ + "method": "GET", + "url": "/api/datasources", + "header": map[string][]string{ + "X-Nb-Request-Id": {"grafana-req-1"}, + }, + }) + cap := &captureSend{} + d.Handle(context.Background(), msg, cap.send) + + if len(stub.gotG) != 1 || stub.gotG[0].URL != "/api/datasources" { + t.Fatalf("HandleGrafana not called or wrong: %+v", stub.gotG) + } + r := cap.only(t) + if r.OutputType != "Grafana" { + t.Errorf("output_type = %q; want Grafana", r.OutputType) + } + if r.RequestID != "grafana-req-1" { + t.Errorf("request_id = %q; want grafana-req-1 (extracted from X-Nb-Request-Id header)", r.RequestID) + } + if _, ok := r.Data.(string); !ok { + t.Fatalf("Response.Data type = %T; want string", r.Data) + } + }) + + t.Run("APIProxy path forwards X-API-Base-URL", func(t *testing.T) { + stub.gotG = nil + stub.gotAPI = nil + msg, _ := json.Marshal(map[string]any{ + "method": "POST", + "url": "/v1/data", + "header": map[string][]string{ + "X-Nb-Request-Id": {"api-req-1"}, + "X-NB-Request-Type": {"APIProxy"}, + "X-API-Base-URL": {"https://api.example.com"}, + }, + }) + cap := &captureSend{} + d.Handle(context.Background(), msg, cap.send) + + if len(stub.gotAPI) != 1 || stub.gotAPI[0].base != "https://api.example.com" { + t.Fatalf("HandleAPI not called with correct base URL: %+v", stub.gotAPI) + } + r := cap.only(t) + if r.OutputType != "Grafana" { + t.Errorf("output_type = %q; want Grafana", r.OutputType) + } + }) + + t.Run("Prometheus path routes to HandlePrometheus", func(t *testing.T) { + // Production hot-path: collector's `/prometheus-v2/*` route + // forwards every Prometheus HTTP call this way. Before this + // dispatch routing, the agent 501'd the request and api-server's + // FetchMetricsLabels failed with no upstream call ever made. + stub.gotG = nil + stub.gotAPI = nil + stub.gotProm = nil + msg, _ := json.Marshal(map[string]any{ + "method": "GET", + "url": "/api/v1/labels?&match[]=%7B__name__%3D%22x%22%7D", + "header": map[string][]string{ + "X-Nb-Request-Id": {"prom-req-1"}, + "X-NB-Request-Type": {"Prometheus"}, + }, + }) + cap := &captureSend{} + d.Handle(context.Background(), msg, cap.send) + + if len(stub.gotProm) != 1 { + t.Fatalf("HandlePrometheus not called: %+v", stub.gotProm) + } + if stub.gotProm[0].URL != "/api/v1/labels?&match[]=%7B__name__%3D%22x%22%7D" { + t.Errorf("URL preserved verbatim through dispatch; got %q", stub.gotProm[0].URL) + } + if len(stub.gotG) != 0 || len(stub.gotAPI) != 0 { + t.Errorf("Prometheus request leaked to Grafana/API path: gotG=%d gotAPI=%d", len(stub.gotG), len(stub.gotAPI)) + } + r := cap.only(t) + if r.OutputType != "Grafana" { + t.Errorf("output_type = %q; want Grafana (same envelope as G/APIProxy)", r.OutputType) + } + if r.StatusCode != 200 { + t.Errorf("status = %d; want 200 (stub default)", r.StatusCode) + } + }) +} + +// TestDispatch_RegularActionUnchanged — sanity check that the new shape +// detection doesn't disturb the regular action path. +func TestDispatch_RegularActionUnchanged(t *testing.T) { + d := New(Config{}, nil, map[string]Handler{ + "ping": SimpleHandler(func(_ map[string]any) (any, error) { + return map[string]any{"pong": true}, nil + }), + }) + cap := &captureSend{} + d.Handle(context.Background(), envelope(t, "ping", "req-reg-1", nil), cap.send) + + r := cap.only(t) + if r.StatusCode != 200 || r.OutputType != "actions" { + t.Errorf("regular action shape changed: status=%d output_type=%q", r.StatusCode, r.OutputType) + } + // Regular actions still return data as the raw object (not stringified) — + // the relay's regular-action path forwards raw bytes verbatim. + if _, ok := r.Data.(map[string]any); !ok { + t.Errorf("regular action Data type = %T; want map[string]any", r.Data) + } +} + +// silence unused-imports warning for auth (kept for future tests) +var _ = auth.Validator{} diff --git a/runner/pkg/enrichers/api_traces.go b/runner/pkg/enrichers/api_traces.go new file mode 100644 index 0000000..278aa48 --- /dev/null +++ b/runner/pkg/enrichers/api_traces.go @@ -0,0 +1,246 @@ +package enrichers + +import ( + "context" + "fmt" + "strconv" + "strings" + "time" + + "github.com/google/uuid" + + "github.com/nudgebee/nudgebee-agent/pkg/clickhouse" + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// APITracesEnricher implements `api_traces_enricher_v2` — fetches OTel +// traces for a workload (or by trace_id) and returns the rows in a +// Finding-shaped JsonBlock. +// +// The api-server caller +// passes destination_workload_{name,namespace} + duration_minutes and +// reads the result via relay.FormatEvidenceResponseFromAgent — i.e. the +// Finding shape with a JsonBlock whose `data` is +// `{"name":"api_traces_enricher","data":[]}`. +// +// When ClickHouse isn't configured we still return success with an empty +// data array so the caller's response stays parseable. +type APITracesEnricher struct { + ch *clickhouse.Client + accountID string +} + +// NewAPITracesEnricher wires the action to a ClickHouse client (may be nil). +func NewAPITracesEnricher(ch *clickhouse.Client, accountID string) *APITracesEnricher { + return &APITracesEnricher{ch: ch, accountID: accountID} +} + +// Handler returns the dispatch.Handler. +func (a *APITracesEnricher) Handler() dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + body := buildTracesPayload(ctx, a.ch, params) + jb, err := JSONBlock(body) + if err != nil { + return nil, err + } + return FindingResponse(a.accountID, uuid.Nil, jb) + } +} + +// buildTracesPayload runs the SQL and assembles the +// {name, data, [error]} dict the api-server expects. +func buildTracesPayload(ctx context.Context, ch *clickhouse.Client, params map[string]any) map[string]any { + out := map[string]any{ + "name": "api_traces_enricher", + "data": []map[string]any{}, + } + if ch == nil { + // The legacy get_application_traces would raise on the run_query call + // if CH were down; we surface the same `error` field so the caller + // can show it in the UI. + out["error"] = "clickhouse: not configured" + return out + } + + dstName, _ := params["destination_workload_name"].(string) + dstNs, _ := params["destination_workload_namespace"].(string) + traceID, _ := params["trace_id"].(string) + if (dstName == "" || dstNs == "") && traceID == "" { + // Mirrors api_traces_enricher_v2's early return (line 670-675). + out["error"] = "destination_workload_name and destination_workload_namespace not provided" + return out + } + + durationMins := 15 + if n, err := toInt(params["duration_minutes"]); err == nil && n > 0 { + durationMins = n + } + maxTraces := 100 + if n, err := toInt(params["max_traces"]); err == nil && n > 0 { + maxTraces = n + } + orderBy, _ := params["order_by"].(string) + if orderBy == "" { + orderBy = "Timestamp desc" + } + // "Safe" order_by — refuse anything that has SQL keywords we don't + // expect, since this gets concat'd. (The legacy implementation has + // the same implicit trust; we tighten slightly.) + if !isSafeOrderBy(orderBy) { + orderBy = "Timestamp desc" + } + + statusCodes := stringSliceFromParam(params["status_code"]) + + endTime := time.Now().UTC() + startTime := endTime.Add(-time.Duration(durationMins) * time.Minute) + rStart := startTime.Format("2006-01-02T15:04:05.000000Z") + rEnd := endTime.Format("2006-01-02T15:04:05.000000Z") + + var query string + if traceID != "" { + query = "SELECT * FROM otel_traces WHERE TraceId = '" + escapeSQL(extractTraceID(traceID)) + + "' ORDER BY " + orderBy + " LIMIT " + strconv.Itoa(maxTraces) + } else { + // Default to the non-materialized path used when trace_provider_config + // is missing or hasMaterializedColumn=false. It's the safer general case. + dstNameExpr := connectedWorkloadExpr("destination") + dstNsExpr := connectedNamespaceExpr("destination") + srcNameExpr := connectedWorkloadExpr("source") + srcNsExpr := connectedNamespaceExpr("source") + nameSet := "('" + escapeSQL(dstName) + "')" + nsSet := "('" + escapeSQL(dstNs) + "')" + statusFilter := "" + if len(statusCodes) > 0 { + parts := make([]string, 0, len(statusCodes)) + for _, c := range statusCodes { + parts = append(parts, "'"+escapeSQL(c)+"'") + } + statusFilter = " AND StatusCode in (" + strings.Join(parts, ",") + ")" + } + query = fmt.Sprintf(`SELECT * FROM otel_traces +WHERE ((Timestamp >= parseDateTimeBestEffort('%s')) AND (Timestamp <= parseDateTimeBestEffort('%s'))) +AND ((%s in %s AND %s in %s) + OR (%s = '%s' AND %s = '%s')) +%s +ORDER BY %s LIMIT %d`, + escapeSQL(rStart), escapeSQL(rEnd), + dstNameExpr, nameSet, dstNsExpr, nsSet, + srcNameExpr, escapeSQL(dstName), srcNsExpr, escapeSQL(dstNs), + statusFilter, orderBy, maxTraces) + } + + res, err := ch.Query(ctx, query, nil) + if err != nil { + out["error"] = err.Error() + return out + } + if res.Error != nil { + out["error"] = *res.Error + return out + } + // Convert column-major (data, columns) → row-list of {col: val} matching + // the legacy `[dict(zip(columns, row)) for row in result]`. + rows := make([]map[string]any, 0, len(res.Data)) + for _, row := range res.Data { + m := make(map[string]any, len(res.Columns)) + for i, col := range res.Columns { + if i < len(row) { + m[col] = row[i] + } + } + rows = append(rows, m) + } + out["data"] = rows + return out +} + +// connectedWorkloadExpr / connectedNamespaceExpr build a CASE/WHEN +// fallback chain — try SpanAttributes, then ResourceAttributes, then a +// Coroot/OTLP-specific fallback. +func connectedWorkloadExpr(role string) string { + return `(CASE + WHEN mapContains(SpanAttributes, '` + role + `.workload_name') THEN SpanAttributes['` + role + `.workload_name'] + WHEN mapContains(ResourceAttributes, 'k8s.deployment.name') THEN ResourceAttributes['k8s.deployment.name'] + WHEN mapContains(ResourceAttributes, 'service.name') THEN ResourceAttributes['service.name'] + ELSE ResourceAttributes['net.peer.name'] + END)` +} + +func connectedNamespaceExpr(role string) string { + return `(CASE + WHEN mapContains(SpanAttributes, '` + role + `.workload_namespace') THEN SpanAttributes['` + role + `.workload_namespace'] + WHEN mapContains(ResourceAttributes, 'k8s.namespace.name') THEN ResourceAttributes['k8s.namespace.name'] + ELSE ResourceAttributes['service.namespace'] + END)` +} + +// extractTraceID accepts either a raw 32-hex trace id or a W3C traceparent +// (`02-<32hex>-<16hex>-01`) and returns the trace_id portion. Mirrors +// is_valid_traceparent + extract_trace_id at the backend. +func extractTraceID(s string) string { + if strings.Count(s, "-") == 3 { + parts := strings.Split(s, "-") + if len(parts[1]) == 32 { + return parts[1] + } + } + return s +} + +// stringSliceFromParam accepts either []string, []any of strings, or a +// single string and returns a []string. Mirrors the loose typing api-server +// callers use for status_code. +func stringSliceFromParam(v any) []string { + switch x := v.(type) { + case []string: + return x + case string: + if x == "" { + return nil + } + return []string{x} + case []any: + out := make([]string, 0, len(x)) + for _, e := range x { + if s, ok := e.(string); ok { + out = append(out, s) + } + } + return out + } + return nil +} + +// isSafeOrderBy is a small allowlist: the column name must look like a SQL +// identifier (alpha + dot only) and the optional direction is asc/desc. +// The legacy implementation concatenates order_by directly into the +// query — we tighten so callers can't smuggle arbitrary SQL. +func isSafeOrderBy(s string) bool { + for _, part := range strings.Split(s, ",") { + fields := strings.Fields(strings.TrimSpace(part)) + if len(fields) == 0 || len(fields) > 2 { + return false + } + col := fields[0] + for _, r := range col { + if r != '_' && r != '.' && (r < 'a' || r > 'z') && (r < 'A' || r > 'Z') && (r < '0' || r > '9') { + return false + } + } + if len(fields) == 2 { + d := strings.ToLower(fields[1]) + if d != "asc" && d != "desc" { + return false + } + } + } + return true +} + +// escapeSQL is a single-quote escape for ClickHouse — the binary protocol +// has parameterized queries, but the HTTP path we use doesn't accept binds, +// so we string-escape. ClickHouse uses `”` to quote a single quote. +func escapeSQL(s string) string { + return strings.ReplaceAll(s, "'", "''") +} diff --git a/runner/pkg/enrichers/api_traces_test.go b/runner/pkg/enrichers/api_traces_test.go new file mode 100644 index 0000000..166ac73 --- /dev/null +++ b/runner/pkg/enrichers/api_traces_test.go @@ -0,0 +1,146 @@ +package enrichers + +import ( + "context" + "encoding/json" + "net/http" + "net/http/httptest" + "strings" + "testing" + + "github.com/nudgebee/nudgebee-agent/pkg/clickhouse" +) + +// TestApiTraces_NoClickHouseReturnsEmpty covers the "CH not configured" +// path. The legacy get_application_traces would crash on the run_query +// call in that case; we surface a clean empty Finding with `error` set +// so the api-server caller can render the empty state. +func TestApiTraces_NoClickHouseReturnsEmpty(t *testing.T) { + a := NewAPITracesEnricher(nil, "acc-1") + resp, err := a.Handler()(context.Background(), map[string]any{ + "destination_workload_name": "web", + "destination_workload_namespace": "shop", + }) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + if r["success"] != true { + t.Fatalf("expected success=true; got %+v", r) + } + body := unwrapJSONBlock(t, r) + if body["name"] != "api_traces_enricher" { + t.Errorf("name = %v", body["name"]) + } + if rows := body["data"].([]any); len(rows) != 0 { + t.Errorf("data = %v; want []", rows) + } + if body["error"] != "clickhouse: not configured" { + t.Errorf("error = %v", body["error"]) + } +} + +// TestApiTraces_BuildsTimeWindowQuery stands up a fake ClickHouse and +// confirms the agent issues a query with the time-bounded SELECT shape, the +// destination/source workload filters, and a row-major result mapping back +// into per-row dicts. +func TestApiTraces_BuildsTimeWindowQuery(t *testing.T) { + var seenBody string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + buf := make([]byte, 4096) + n, _ := r.Body.Read(buf) + seenBody = string(buf[:n]) + w.Header().Set("Content-Type", "application/json") + // Two rows, two columns — ClickHouse JSONCompact shape. + _, _ = w.Write([]byte(`{"meta":[{"name":"TraceId","type":"String"},{"name":"SpanName","type":"String"}],"data":[["abc","GET /api"],["def","POST /api"]]}`)) + })) + defer srv.Close() + + c := clickhouse.New(clickhouse.Config{Host: strings.TrimPrefix(srv.URL, "http://"), Database: "default"}) + a := NewAPITracesEnricher(c, "acc-1") + resp, err := a.Handler()(context.Background(), map[string]any{ + "destination_workload_name": "web", + "destination_workload_namespace": "shop", + "duration_minutes": 5, + "max_traces": 50, + }) + if err != nil { + t.Fatal(err) + } + + if !strings.Contains(seenBody, "FROM otel_traces") { + t.Errorf("query missing otel_traces select: %s", seenBody) + } + if !strings.Contains(seenBody, "parseDateTimeBestEffort") { + t.Errorf("query missing time filter: %s", seenBody) + } + if !strings.Contains(seenBody, "LIMIT 50") { + t.Errorf("query missing limit: %s", seenBody) + } + body := unwrapJSONBlock(t, resp.(map[string]any)) + rows := body["data"].([]any) + if len(rows) != 2 { + t.Fatalf("rows = %d; want 2", len(rows)) + } + first := rows[0].(map[string]any) + if first["TraceId"] != "abc" || first["SpanName"] != "GET /api" { + t.Errorf("row[0] = %+v", first) + } +} + +// TestApiTraces_TraceIDFastPath: with trace_id set we skip the +// destination-workload validation and run a direct lookup. Mirrors +func TestApiTraces_TraceIDFastPath(t *testing.T) { + var seenBody string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + buf := make([]byte, 4096) + n, _ := r.Body.Read(buf) + seenBody = string(buf[:n]) + _, _ = w.Write([]byte(`{"meta":[{"name":"TraceId","type":"String"}],"data":[]}`)) + })) + defer srv.Close() + c := clickhouse.New(clickhouse.Config{Host: strings.TrimPrefix(srv.URL, "http://")}) + a := NewAPITracesEnricher(c, "acc-1") + _, err := a.Handler()(context.Background(), map[string]any{ + "trace_id": "00-deadbeefdeadbeefdeadbeefdeadbeef-1111111111111111-01", + }) + if err != nil { + t.Fatal(err) + } + if !strings.Contains(seenBody, "TraceId = 'deadbeefdeadbeefdeadbeefdeadbeef'") { + t.Errorf("traceparent not unwrapped: %s", seenBody) + } +} + +func TestApiTraces_RejectsUnsafeOrderBy(t *testing.T) { + cases := map[string]bool{ + "Timestamp desc": true, + "Timestamp ASC": true, + "col1, col2 asc": true, + "foo; DROP TABLE traces": false, + "col1; DELETE": false, + "col(1)": false, + } + for in, want := range cases { + if got := isSafeOrderBy(in); got != want { + t.Errorf("isSafeOrderBy(%q) = %v; want %v", in, got, want) + } + } +} + +// unwrapJSONBlock walks Finding → evidence[0].data → JSON-parse → array → +// first block → JSON-parse the inner string. The api-server caller goes +// through this same dance via FormatEvidenceResponseFromAgent. +func unwrapJSONBlock(t *testing.T, finding map[string]any) map[string]any { + t.Helper() + ev := finding["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + if err := json.Unmarshal([]byte(ev["data"].(string)), &blocks); err != nil { + t.Fatalf("evidence.data not JSON array: %v", err) + } + var inner map[string]any + if err := json.Unmarshal([]byte(blocks[0]["data"].(string)), &inner); err != nil { + t.Fatalf("inner JsonBlock data not JSON: %v", err) + } + return inner +} diff --git a/runner/pkg/enrichers/app_stats.go b/runner/pkg/enrichers/app_stats.go new file mode 100644 index 0000000..54b8ece --- /dev/null +++ b/runner/pkg/enrichers/app_stats.go @@ -0,0 +1,604 @@ +package enrichers + +import ( + "context" + "encoding/json" + "fmt" + "math" + "regexp" + "strconv" + "strings" + "sync" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// AppStatsEnricher implements `application_stats`. The action runs a suite of +// Prometheus range queries (APPLICATION_MONITORING_QUERIES, or the +// caller-supplied `queries` map), parses each result into a per-series +// time-series grid, buckets samples by app_id, then reduces to scalars. +// +// Wire shape: +// +// { +// "success": true, +// "data": [], +// "request_id": "..." (set by dispatcher) +// } +// +// Each ApplicationStats dict matches relay.ApplicationStatsResponse — +// application_id, name, namespace, container, max_cpu_request, +// max_memory_request, …, other_metrics. +type AppStatsEnricher struct{ q PromQuerier } + +func NewAppStatsEnricher(c *prometheus.Client) *AppStatsEnricher { + return &AppStatsEnricher{q: promClientAdapter{c: c}} +} + +// Handler returns a dispatch.Handler for application_stats. +func (a *AppStatsEnricher) Handler() dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + return map[string]any{ + "success": true, + "data": a.run(ctx, params), + }, nil + } +} + +// applicationStats collects partial samples for one application_id during the +// extract pass; it's reduced into the response shape at the end of run(). +type applicationStats struct { + ApplicationID string + Name string + Namespace string + Container string + MaxCPURequest *timeSeries + MaxMemRequest *timeSeries + MaxCPULimit *timeSeries + MaxMemLimit *timeSeries + LatencyP99 *timeSeries + CPUP99 *timeSeries + CPUP50 *timeSeries + CPUMax *timeSeries + MemMax *timeSeries + MemP99 *timeSeries + MemP50 *timeSeries + LogFailures *timeSeries + TotalRequests *timeSeries + FailRequests *timeSeries + BadData *timeSeries + GoodData *timeSeries + ValidData *timeSeries + OOMKill *timeSeries + OtherMetrics map[string]*timeSeries + OtherReducers map[string]func(acc, v float64) float64 +} + +func (a *AppStatsEnricher) run(ctx context.Context, params map[string]any) []map[string]any { + const dateFormat = "2006-01-02T15:04:05.000000Z" + + // 1. Time window + now := time.Now().UTC() + endTime := now + if s, _ := params["r_end_time"].(string); s != "" { + t, err := time.Parse(dateFormat, s) + if err == nil { + endTime = t + } + } + durationMin := 60 + if v, err := toInt(params["r_duration"]); err == nil && v > 0 { + durationMin = v + } + startTime := endTime.Add(-time.Duration(durationMin) * time.Minute) + if s, _ := params["r_start_time"].(string); s != "" { + t, err := time.Parse(dateFormat, s) + if err == nil { + startTime = t + } + } + step := int64(60) + + // 2. Build label filters + podFilter := dictToPrometheusFilter(params["pod_filter"]) + containerFilter := dictToPrometheusFilter(params["container_filter"]) + workloadFilter := dictToPrometheusFilter(params["workload_filter"]) + + // `applications: [{name, namespace}, …]` is the high-level shape; if + // present, we derive pod_filter and workload_filter from it. + if filters := buildAppFilters(params["applications"]); filters != nil { + if podFilter == "" { + podFilter = filters.pod + } + if workloadFilter == "" { + workloadFilter = filters.workload + } + } + + // 3. Pick query set + queries := ApplicationMonitoringQueries + if userQueries, ok := asStringMap(params["queries"]); ok && len(userQueries) > 0 { + queries = userQueries + } + + // 4. Run all queries in parallel against Prometheus. + results := a.runQueries(ctx, queries, startTime, endTime, step, podFilter, workloadFilter, containerFilter) + + // 5. Bucket samples → applicationStats per app_id, then reduce. + apps := extractMetricStats(results) + out := make([]map[string]any, 0, len(apps)) + for _, app := range apps { + out = append(out, app.toResponse()) + } + return out +} + +// runQueries substitutes placeholders, fans out range queries, parses each +// result into per-series TimeSeries grids keyed by query name. +func (a *AppStatsEnricher) runQueries( + ctx context.Context, + queries map[string]string, + startTime, endTime time.Time, + step int64, + podFilter, workloadFilter, containerFilter string, +) map[string][]metricSeries { + type result struct { + key string + vals []metricSeries + err error + } + resCh := make(chan result, len(queries)) + var wg sync.WaitGroup + startUnix := startTime.UTC().Unix() + endUnix := endTime.UTC().Unix() + stepStr := strconv.FormatInt(step, 10) + "s" + + for key, query := range queries { + key, query := key, query + wg.Add(1) + go func() { + defer wg.Done() + q := substitute(query, stepStr, podFilter, workloadFilter, containerFilter) + raw, err := a.q.QueryRange(ctx, + q, + strconv.FormatInt(startUnix, 10), + strconv.FormatInt(endUnix, 10), + stepStr, + "", + ) + if err != nil { + resCh <- result{key: key, err: err} + return + } + vals, err := parseMetricSeries(raw, startUnix, endUnix, step) + resCh <- result{key: key, vals: vals, err: err} + }() + } + wg.Wait() + close(resCh) + + out := make(map[string][]metricSeries, len(queries)) + for r := range resCh { + // Per-query errors are logged but don't fail the whole call. + if r.err == nil { + out[r.key] = r.vals + } + } + return out +} + +// metricSeries is one Prometheus matrix row — labels + a TimeSeries grid. +type metricSeries struct { + labels map[string]string + values *timeSeries +} + +// parseMetricSeries decodes a Prometheus query_range response and lays each +// series onto a fixed-step TimeSeries grid spanning [startUnix, endUnix]. +func parseMetricSeries(raw []byte, startUnix, endUnix, step int64) ([]metricSeries, error) { + var resp struct { + Status string `json:"status"` + Data struct { + ResultType string `json:"resultType"` + Result []struct { + Metric map[string]string `json:"metric"` + Values [][]any `json:"values"` + } `json:"result"` + } `json:"data"` + } + if err := json.Unmarshal(raw, &resp); err != nil { + return nil, err + } + if resp.Status != "success" { + return nil, nil + } + points := int((endUnix - startUnix) / step) + if points <= 0 { + points = 1 + } + out := make([]metricSeries, 0, len(resp.Data.Result)) + for _, r := range resp.Data.Result { + ts := newTimeSeries(startUnix, points, step) + for _, v := range r.Values { + if len(v) < 2 { + continue + } + tInt := int64(0) + switch t := v[0].(type) { + case float64: + tInt = int64(t) + case string: + if n, err := strconv.ParseFloat(t, 64); err == nil { + tInt = int64(n) + } + } + f := math.NaN() + switch x := v[1].(type) { + case string: + if n, err := strconv.ParseFloat(x, 64); err == nil { + f = n + } + case float64: + f = x + } + ts.set(tInt, f) + } + out = append(out, metricSeries{labels: r.Metric, values: ts}) + } + return out, nil +} + +// substitute fills the expected placeholders. __CLUSTER__ has already been +// replaced by the relay (request.go:131); if it somehow survives, we strip +// it so the query stays well-formed. +func substitute(q, rangeStr, podFilter, workloadFilter, containerFilter string) string { + q = strings.ReplaceAll(q, "$RANGE", rangeStr) + q = strings.ReplaceAll(q, "$POD_FILTER", podFilter) + q = strings.ReplaceAll(q, "$WORKLOAD_FILTER", workloadFilter) + q = strings.ReplaceAll(q, "$CONTAINER_FILTER", containerFilter) + q = strings.ReplaceAll(q, "__CLUSTER__", "") + return q +} + +// dictToPrometheusFilter +// +// {label: [v1,v2]} → label=~"v1|v2" +// {label: "foo%bar"} → label=~"foo.*bar" (LIKE → regex) +// {label: "foo"} → label=~"foo" +// {} or nil → "" +// +// Multiple keys are comma-joined. +func dictToPrometheusFilter(d any) string { + m, ok := d.(map[string]any) + if !ok { + return "" + } + var parts []string + for k, v := range m { + switch x := v.(type) { + case []any: + vals := make([]string, 0, len(x)) + for _, it := range x { + if s, ok := it.(string); ok { + vals = append(vals, s) + } + } + if len(vals) == 0 { + continue + } + parts = append(parts, fmt.Sprintf(`%s=~"%s"`, k, strings.Join(vals, "|"))) + case []string: + if len(x) == 0 { + continue + } + parts = append(parts, fmt.Sprintf(`%s=~"%s"`, k, strings.Join(x, "|"))) + case string: + val := x + if strings.Contains(val, "%") { + val = strings.ReplaceAll(val, "%", ".*") + } + parts = append(parts, fmt.Sprintf(`%s=~"%s"`, k, val)) + } + } + return strings.Join(parts, ",") +} + +// asStringMap accepts either map[string]any or map[string]string (callers do +// both); returns the values flattened to map[string]string. +func asStringMap(v any) (map[string]string, bool) { + switch m := v.(type) { + case map[string]string: + return m, true + case map[string]any: + out := make(map[string]string, len(m)) + for k, vv := range m { + if s, ok := vv.(string); ok { + out[k] = s + } + } + return out, true + } + return nil, false +} + +type appFilters struct { + pod string + workload string +} + +// buildAppFilters mirrors get_application_stats:511-524 — turn +// `[{name, namespace}, ...]` into pod_filter / workload_filter strings. +func buildAppFilters(applications any) *appFilters { + apps, ok := applications.([]any) + if !ok { + return nil + } + var pods, namespaces []string + for _, app := range apps { + m, ok := app.(map[string]any) + if !ok { + continue + } + name, _ := m["name"].(string) + ns, _ := m["namespace"].(string) + if name != "" { + pods = append(pods, name+".*") + } + if ns != "" { + namespaces = append(namespaces, ns) + } + } + if len(pods) == 0 && len(namespaces) == 0 { + return nil + } + pf := dictToPrometheusFilter(map[string]any{"pod": pods, "namespace": namespaces}) + wf := dictToPrometheusFilter(map[string]any{ + "destination_workload_name": pods, + "destination_workload_namespace": namespaces, + }) + return &appFilters{pod: pf, workload: wf} +} + +// extractMetricStats buckets samples per app_id and applies the per-query +// reducer. +func extractMetricStats(metrics map[string][]metricSeries) []*applicationStats { + apps := map[string]*applicationStats{} + getApp := func(id, name, namespace, container string) *applicationStats { + if a, ok := apps[id]; ok { + return a + } + a := &applicationStats{ + ApplicationID: id, + Name: name, + Namespace: namespace, + Container: container, + OtherMetrics: map[string]*timeSeries{}, + OtherReducers: map[string]func(acc, v float64) float64{}, + } + apps[id] = a + return a + } + + for queryName, seriesList := range metrics { + for _, m := range seriesList { + labels := m.labels + if !hasAnyKey(labels, "pod", "namespace", "container_id", + "actual_destination_workload_namespace", "deployment", "destination_workload_namespace") { + continue + } + ownerName, namespace, container := resolveOwner(labels) + if namespace == "" { + continue + } + appID := ownerName + "/" + namespace + app := getApp(appID, ownerName, namespace, container) + + switch queryName { + case "pod_memory_max_usage": + app.MemMax = mergeSeries(app.MemMax, m.values, rMax) + case "pod_cpu_usage_p99": + app.CPUP99 = mergeSeries(app.CPUP99, m.values, rMax) + case "pod_cpu_usage_p50": + app.CPUP50 = mergeSeries(app.CPUP50, m.values, rMax) + case "pod_memory_usage_p99": + app.MemP99 = mergeSeries(app.MemP99, m.values, rMax) + case "pod_memory_usage_p50": + app.MemP50 = mergeSeries(app.MemP50, m.values, rMax) + case "container_http_requests_total_count": + app.TotalRequests = mergeSeries(app.TotalRequests, m.values, rNanSum) + case "container_http_requests_failure_count": + app.FailRequests = mergeSeries(app.FailRequests, m.values, rNanSum) + case "container_log_messages": + app.LogFailures = mergeSeries(app.LogFailures, m.values, rMax) + case "container_cpu_request": + app.MaxCPURequest = mergeSeries(app.MaxCPURequest, m.values, rMax) + case "container_memory_request": + app.MaxMemRequest = mergeSeries(app.MaxMemRequest, m.values, rMax) + case "container_http_requests_latency_p99": + app.LatencyP99 = mergeSeries(app.LatencyP99, m.values, rMax) + case "filter_valid": + app.ValidData = mergeSeries(app.ValidData, m.values, rNanSum) + case "filter_bad": + app.BadData = mergeSeries(app.BadData, m.values, rNanSum) + case "filter_good": + app.GoodData = mergeSeries(app.GoodData, m.values, rNanSum) + case "container_memory_limit": + app.MaxMemLimit = mergeSeries(app.MaxMemLimit, m.values, rMax) + case "container_cpu_limit": + app.MaxCPULimit = mergeSeries(app.MaxCPULimit, m.values, rMax) + case "oom_kill_limit": + app.OOMKill = mergeSeries(app.OOMKill, m.values, rMax) + case "pod_cpu_max_usage": + app.CPUMax = mergeSeries(app.CPUMax, m.values, rMax) + default: + // Route unknown query names by prefix — + // "sum*"/"max*"/"min*"/else nan_sum. + reducer := rNanSum + switch { + case strings.HasPrefix(queryName, "max"): + reducer = rMax + case strings.HasPrefix(queryName, "min"): + reducer = rMin + } + app.OtherMetrics[queryName] = mergeSeries(app.OtherMetrics[queryName], m.values, reducer) + app.OtherReducers[queryName] = reducer + } + } + } + + // Stable ordering: by app_id. + out := make([]*applicationStats, 0, len(apps)) + for _, a := range apps { + out = append(out, a) + } + return out +} + +// resolveOwner picks the owner name + namespace + container per a +// label-priority chain. +func resolveOwner(labels map[string]string) (owner, namespace, container string) { + switch { + case labels["actual_destination_workload_namespace"] != "": + owner = labels["actual_destination_workload_name"] + namespace = labels["actual_destination_workload_namespace"] + case labels["destination_workload_namespace"] != "": + owner = labels["destination_workload_name"] + namespace = labels["destination_workload_namespace"] + case labels["container_id"] != "": + s := strings.Split(labels["container_id"], "/") + if len(s) > 4 { + namespace = s[2] + owner = ownerFromPodName(s[3]) + } + case labels["deployment"] != "": + owner = labels["deployment"] + namespace = labels["namespace"] + default: + owner = ownerFromPodName(labels["pod"]) + namespace = labels["namespace"] + } + if owner == "" { + owner = ownerFromPodName(labels["pod"]) + } + container = labels["container"] + return owner, namespace, container +} + +// ownerFromPodName mirrors get_owner_name — the +// regexes that strip the "--" suffix from a pod name. +var ( + deploymentPodRegex = regexp.MustCompile(`([a-z0-9-]+)-[0-9a-f]{1,10}-[bcdfghjklmnpqrstvwxz2456789]{5}`) + daemonsetPodRegex = regexp.MustCompile(`([a-z0-9-]+)-[bcdfghjklmnpqrstvwxz2456789]{5}`) + statefulsetPodRegex = regexp.MustCompile(`([a-z0-9-]+)-\d`) +) + +func ownerFromPodName(pod string) string { + if pod == "" { + return "" + } + for _, re := range []*regexp.Regexp{deploymentPodRegex, daemonsetPodRegex, statefulsetPodRegex} { + if m := re.FindStringSubmatch(pod); len(m) > 1 { + return m[1] + } + } + return pod +} + +func hasAnyKey(m map[string]string, keys ...string) bool { + for _, k := range keys { + if _, ok := m[k]; ok { + return true + } + } + return false +} + +// toResponse reduces every TimeSeries to a scalar and emits the shape that +// api-server's relay.ApplicationStatsResponse maps onto. +func (a *applicationStats) toResponse() map[string]any { + out := map[string]any{ + "application_id": a.ApplicationID, + "name": a.Name, + "namespace": a.Namespace, + "container": a.Container, + } + addReduce := func(key string, ts *timeSeries, f func(acc, v float64) float64) { + if ts == nil { + return + } + v := ts.reduce(f) + if math.IsNaN(v) || math.IsInf(v, 0) { + return + } + out[key] = v + } + addLast := func(key string, ts *timeSeries) { + if ts == nil { + return + } + v := ts.last() + if math.IsNaN(v) || math.IsInf(v, 0) { + return + } + out[key] = v + } + + addReduce("memory_max", a.MemMax, rMax) + addReduce("memory_p99", a.MemP99, rMax) + addReduce("memory_p50", a.MemP50, rMax) + addReduce("cpu_p99", a.CPUP99, rMax) + addReduce("cpu_p50", a.CPUP50, rMax) + addReduce("cpu_max", a.CPUMax, rMax) + if a.LatencyP99 != nil { + v := a.LatencyP99.reduce(rMax) + if !math.IsNaN(v) && !math.IsInf(v, 0) { + out["latency"] = v + out["latency_p99"] = v + } + } + addReduce("log_failure_count", a.LogFailures, rNanSum) + addReduce("total_request_count", a.TotalRequests, rNanSum) + if a.FailRequests != nil { + v := a.FailRequests.reduce(rNanSum) + if !math.IsNaN(v) && !math.IsInf(v, 0) { + // Note: the legacy implementation has a typo where failure overwrites + // total_request_count. We replicate so the wire shape matches. + out["total_request_count"] = v + } + } + addLast("good_data_count", a.GoodData) + addLast("max_memory_request", a.MaxMemRequest) + addLast("max_memory_limit", a.MaxMemLimit) + addLast("max_cpu_limit", a.MaxCPULimit) + addLast("bad_data_count", a.BadData) + if a.ValidData != nil { + v := a.ValidData.last() + if !math.IsNaN(v) && !math.IsInf(v, 0) { + out["valid_data_count"] = v + if g, ok := out["good_data_count"].(float64); ok { + out["bad_data_count"] = v - g + } + } + } + addReduce("oom_kill_limit", a.OOMKill, rMax) + + if len(a.OtherMetrics) > 0 { + other := map[string]float64{} + for key, ts := range a.OtherMetrics { + reducer := a.OtherReducers[key] + if reducer == nil { + reducer = rNanSum + } + val := ts.reduce(reducer) + if !math.IsNaN(val) && !math.IsInf(val, 0) { + other[key] = val + } + } + if len(other) > 0 { + out["other_metrics"] = other + } + } + return out +} diff --git a/runner/pkg/enrichers/app_stats_queries.go b/runner/pkg/enrichers/app_stats_queries.go new file mode 100644 index 0000000..b1e386f --- /dev/null +++ b/runner/pkg/enrichers/app_stats_queries.go @@ -0,0 +1,53 @@ +package enrichers + +// ApplicationMonitoringQueries is the legacy +// APPLICATION_MONITORING_QUERIES dict. The agent uses these as defaults +// when the caller doesn't pass a `queries` map. +// +// Placeholders the agent substitutes at execution time: +// +// __CLUSTER__ — replaced upstream by relay (request.go:131) with the +// cluster's Prometheus filter; if the agent receives a +// request that still has the literal it falls back to +// empty — relay is the authoritative substitution point. +// $POD_FILTER — replaced from `applications.pod_filter` +// $WORKLOAD_FILTER — replaced from `applications.workload_filter` +// $CONTAINER_FILTER — replaced from `applications.container_filter` +// $RANGE — replaced with the step duration ("60s" by default) +var ApplicationMonitoringQueries = map[string]string{ + "pod_cpu_usage_p99": `quantile_over_time(0.99,sum by (container, pod, namespace,job) (rate (` + + `container_cpu_usage_seconds_total{__CLUSTER__ $POD_FILTER}))[1d:])`, + "pod_cpu_usage_p50": `quantile_over_time(0.50,sum by (container, pod, namespace,job) (rate (` + + `container_cpu_usage_seconds_total{__CLUSTER__ $POD_FILTER}))[1d:])`, + "pod_memory_max_usage": `max_over_time(max(container_memory_working_set_bytes{__CLUSTER__ $POD_FILTER}) by (container, ` + + `pod, job, namespace)[1h:])`, + "pod_memory_usage_p99": `quantile_over_time(0.99,sum by (container, pod, namespace,job)(` + + `container_memory_working_set_bytes{__CLUSTER__ $POD_FILTER, container!="POD", container!=""})[` + + `1h:])`, + "pod_memory_usage_p50": `quantile_over_time(0.50,sum by(container, pod, namespace,job)(` + + `container_memory_working_set_bytes{__CLUSTER__ $POD_FILTER, container!="POD", container!=""})[` + + `1h:])`, + "pod_cpu_max_usage": `max_over_time(max(container_memory_working_set_bytes{__CLUSTER__ $POD_FILTER}) by (container, ` + + `pod, job, namespace)[1h:])`, + "container_http_requests_total_count": `sum by (destination_workload_name,destination_workload_namespace) (` + + `increase(container_http_requests_total{__CLUSTER__ $WORKLOAD_FILTER}[1h]))`, + "container_http_requests_failure_count": `sum by (destination_workload_name,destination_workload_namespace) (` + + `increase(container_http_requests_total{__CLUSTER__ $WORKLOAD_FILTER, ` + + `status="500"}[1h]))`, + "container_log_messages": `increase(container_log_messages_total{__CLUSTER__ $CONTAINER_FILTER,level=~"error|critical"}[` + + `$RANGE])`, + "container_cpu_request": `max_over_time(max(kube_pod_container_resource_requests{__CLUSTER__ resource="cpu", $POD_FILTER}) ` + + `by (container, pod, job, namespace)[1h:])`, + "container_memory_request": `max_over_time(max(kube_pod_container_resource_requests{__CLUSTER__ resource="memory", ` + + `$POD_FILTER})` + + `by (container, pod, job, namespace)[1h:])`, + "container_cpu_limit": `max_over_time(max(kube_pod_container_resource_limits{__CLUSTER__ resource="cpu", $POD_FILTER}) ` + + `by (container, pod, job, namespace)[1h:])`, + "container_memory_limit": `max_over_time(max(kube_pod_container_resource_limits{__CLUSTER__ resource="memory", ` + + `$POD_FILTER})` + + `by (container, pod, job, namespace)[1h:])`, + "container_http_requests_latency_p99": `histogram_quantile(0.99, sum(rate(` + + `container_http_requests_duration_seconds_total_bucket{__CLUSTER__ $WORKLOAD_FILTER}[` + + `$RANGE]))` + + `by (job,container_id, le))`, +} diff --git a/runner/pkg/enrichers/app_stats_test.go b/runner/pkg/enrichers/app_stats_test.go new file mode 100644 index 0000000..8a2030e --- /dev/null +++ b/runner/pkg/enrichers/app_stats_test.go @@ -0,0 +1,99 @@ +package enrichers + +import ( + "context" + "testing" +) + +// canned matrix body with one sample at start_time + 30s, value 0.5. +type cannedRangeProm struct{ body []byte } + +func (c cannedRangeProm) Query(_ context.Context, _, _, _ string) ([]byte, error) { + return c.body, nil +} +func (c cannedRangeProm) QueryRange(_ context.Context, _, _, _, _, _ string) ([]byte, error) { + return c.body, nil +} +func (c cannedRangeProm) LabelValues(_ context.Context, _, _, _ string, _ []string) ([]byte, error) { + return []byte(`{"status":"success","data":[]}`), nil +} + +// TestRunAppStats_BucketsByOwnerAndReducesToScalars runs application_stats +// against a fake Prometheus that returns matrix samples for one workload, +// then verifies the response shape api-server expects (relay/model.go +// ApplicationStatsResponse): one entry per app_id, with each numeric metric +// reduced from a TimeSeries to a scalar. +// +// The sample's timestamp is start_time + step so it lands inside the grid. +func TestRunAppStats_BucketsByOwnerAndReducesToScalars(t *testing.T) { + // start_time = 2024-01-01T00:00:00Z = 1704067200; step = 60. Place the + // sample at +30s so it rounds into bucket 0. + body := `{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"pod":"web-77c7-x9q","namespace":"shop","container":"app"},"values":[[1704067230,"0.5"]]}]}}` + a := &AppStatsEnricher{q: cannedRangeProm{body: []byte(body)}} + out, err := a.Handler()(context.Background(), map[string]any{ + "r_start_time": "2024-01-01T00:00:00.000000Z", + "r_end_time": "2024-01-01T00:01:00.000000Z", + "applications": []any{map[string]any{"name": "web", "namespace": "shop"}}, + "queries": map[string]any{ + "pod_cpu_usage_p99": ApplicationMonitoringQueries["pod_cpu_usage_p99"], + }, + }) + if err != nil { + t.Fatal(err) + } + r := out.(map[string]any) + if r["success"] != true { + t.Fatalf("success = %v: %+v", r["success"], r) + } + apps := r["data"].([]map[string]any) + if len(apps) != 1 { + t.Fatalf("apps = %d; want 1", len(apps)) + } + if apps[0]["application_id"] != "web/shop" { + t.Errorf("application_id = %v", apps[0]["application_id"]) + } + if v, ok := apps[0]["cpu_p99"].(float64); !ok || v != 0.5 { + t.Errorf("cpu_p99 = %v (%T); want 0.5", apps[0]["cpu_p99"], apps[0]["cpu_p99"]) + } +} + +func TestDictToPrometheusFilter(t *testing.T) { + cases := []struct { + name string + in any + want string + }{ + {"nil", nil, ""}, + {"empty", map[string]any{}, ""}, + {"list", map[string]any{"pod": []any{"a", "b"}}, `pod=~"a|b"`}, + {"single", map[string]any{"namespace": "shop"}, `namespace=~"shop"`}, + {"like", map[string]any{"pod": "web%"}, `pod=~"web.*"`}, + } + for _, c := range cases { + t.Run(c.name, func(t *testing.T) { + got := dictToPrometheusFilter(c.in) + if got != c.want { + t.Errorf("got %q; want %q", got, c.want) + } + }) + } +} + +func TestOwnerFromPodName(t *testing.T) { + cases := map[string]string{ + // Deployment-style: -- + "frontend-77c7c5f9d-x9q8m": "frontend", + // DaemonSet-style: - + "node-exporter-x9q8m": "node-exporter", + // StatefulSet-style: - + "clickhouse-shard0-0": "clickhouse-shard0", + // No match → returns input + "some-arbitrary-name": "some-arbitrary-name", + "": "", + } + for in, want := range cases { + if got := ownerFromPodName(in); got != want { + t.Errorf("ownerFromPodName(%q) = %q; want %q", in, got, want) + } + } +} diff --git a/runner/pkg/enrichers/finding.go b/runner/pkg/enrichers/finding.go new file mode 100644 index 0000000..545fba0 --- /dev/null +++ b/runner/pkg/enrichers/finding.go @@ -0,0 +1,157 @@ +// Package enrichers implements enricher actions over the agent's primitives. +// +// These wrap thin observability calls (Prometheus, Loki, kube logs, …) in the +// wire shape that today's api-server / llm-server callers expect: +// +// { +// "success": true, +// "findings": [{ +// "evidence": [{ +// "data": "", +// "issue_id": "", +// "file_type": "structured_data", +// "account_id": "..." +// }] +// }] +// } +// +// Why this lives in the agent today: api-server's playbook actions still call +// these by name (prometheus_enricher / prometheus_queries_enricher / …) and +// expect the Finding back. Eventually api-server gets its own enrichers +// package and this layer goes away (plan §5c). +package enrichers + +import ( + "encoding/base64" + "encoding/json" + + "github.com/google/uuid" +) + +// Block is the shape of one element inside `evidence[0].data` (a JSON-encoded +// array). Each block class becomes one of these. We keep the shape open +// with map[string]any rather than a typed struct because different block +// types have wildly different payloads (PrometheusBlock has data+metadata+ +// version, JsonBlock has stringified data, FileBlock has filename+data, …). +type Block map[string]any + +// PrometheusBlock builds a PrometheusBlock evidence element. `data` +// must already be in PrometheusQueryResult.dict() shape: +// +// { "result_type": "vector", "vector_result": [...], "series_list_result": null, +// "scalar_result": null, "string_result": null } +func PrometheusBlock(data map[string]any, query string) Block { + return Block{ + "type": "prometheus", + "data": data, + "metadata": map[string]any{ + "query-result-version": "1.0", + "query": query, + }, + "version": 1.0, + "additional_info": nil, + } +} + +// JSONBlock builds a JsonBlock evidence element. The inner `data` is the +// JSON-encoded string (so a single string field, not nested JSON). +// prometheus_queries_enricher uses this with a +// {key: PrometheusQueryResult.dict()} payload. +func JSONBlock(payload any) (Block, error) { + b, err := json.Marshal(payload) + if err != nil { + return nil, err + } + return Block{ + "type": "json", + "data": string(b), + "additional_info": nil, + }, nil +} + +// FileBlock builds a FileBlock evidence element. +// +// Wire shape includes the `str(base64.b64encode(bytes))` Python quirk that +// wraps the encoded payload with a literal `b'...'`. UI consumers +// (KubernetesPodYaml.tsx, KubernetesPodLogs.tsx, KubernetesWorkloads.jsx) +// all decode with `atob(d.data.slice(2, -1))` — strip 2 chars from the +// front (`b'`), 1 from the back (`'`), then base64-decode. Without the +// wrapping the slice eats real data. +// +// Caller responsibility: gzip first when the file is "text" (the legacy +// pipeline gzips `.txt`/`.log`). For logs, pass the gzipped bytes and a +// filename ending in `.log.gz` so `type` becomes `"gz"` (UI matches on +// `type === 'gz'`). For yaml, pass raw bytes and `.yaml` so `type` +// becomes `"yaml"`. +func FileBlock(filename string, contents []byte) Block { + ext := "" + for i := len(filename) - 1; i >= 0; i-- { + if filename[i] == '.' { + ext = filename[i+1:] + break + } + } + encoded := base64.StdEncoding.EncodeToString(contents) + return Block{ + "type": ext, + "filename": filename, + // `b'...'` mirrors Python's `str(base64.b64encode(bytes))`. The UI + // strips the wrapping unconditionally; emitting bare base64 here + // would chop two chars of real data. + "data": "b'" + encoded + "'", + "additional_info": nil, + } +} + +// MarkdownBlock builds a MarkdownBlock evidence element. `text` is the +// (already-Github-flavored) markdown body; we don't re-run a +// `to_github_markdown` transformer because none of our existing call +// sites need the conversion. +func MarkdownBlock(text string) Block { + return Block{ + "type": "markdown", + "data": text, + "additional_info": nil, + } +} + +// FindingResponse builds the full Finding-shaped response that api-server's +// `relay.ExecuteAndExtractResponse` walks. +// Pass one or more Block values; they all land inside the same evidence element's +// `data` array (the structured_data list inside one Enrichment). +// +// `accountID` is the tenant id; `findingID` is a stable UUID used as `issue_id`. +// If findingID is the zero value a fresh UUID is generated. +func FindingResponse(accountID string, findingID uuid.UUID, blocks ...Block) (map[string]any, error) { + if findingID == uuid.Nil { + findingID = uuid.New() + } + encoded, err := json.Marshal(blocks) + if err != nil { + return nil, err + } + evidence := map[string]any{ + "issue_id": findingID.String(), + "file_type": "structured_data", + "data": string(encoded), + "account_id": accountID, + } + finding := map[string]any{ + "id": findingID.String(), + "evidence": []any{evidence}, + } + return map[string]any{ + "success": true, + "findings": []any{finding}, + }, nil +} + +// ErrorResponse returns the legacy error-response shape. Returned by +// handlers when input is bad or the underlying datasource fails. +func ErrorResponse(msg string, code int) map[string]any { + return map[string]any{ + "success": false, + "msg": msg, + "error_code": code, + } +} diff --git a/runner/pkg/enrichers/finding_test.go b/runner/pkg/enrichers/finding_test.go new file mode 100644 index 0000000..af1b3a8 --- /dev/null +++ b/runner/pkg/enrichers/finding_test.go @@ -0,0 +1,154 @@ +package enrichers + +import ( + "encoding/base64" + "encoding/json" + "strings" + "testing" + + "github.com/google/uuid" +) + +// decodeBase64 wraps stdlib for readability in the FileBlock test. +func decodeBase64(s string) ([]byte, error) { + return base64.StdEncoding.DecodeString(s) +} + +// TestFindingResponse_WireShape checks every layer of the response — +// outer success/findings, inner evidence with stringified-JSON data, +// and that the structured_data array round-trips through JSON. +// +// This is the contract that api-server's relay.ExecuteAndExtractResponse walks +// (services/relay/service.go:203-303). If any field shifts, that walker breaks. +func TestFindingResponse_WireShape(t *testing.T) { + id := uuid.MustParse("00000000-0000-0000-0000-000000000001") + resp, err := FindingResponse("acc-1", id, + PrometheusBlock(map[string]any{"result_type": "vector"}, "up"), + ) + if err != nil { + t.Fatal(err) + } + if resp["success"] != true { + t.Errorf("success = %v; want true", resp["success"]) + } + findings := resp["findings"].([]any) + if len(findings) != 1 { + t.Fatalf("findings len = %d; want 1", len(findings)) + } + finding := findings[0].(map[string]any) + if finding["id"] != id.String() { + t.Errorf("finding.id = %v; want %s", finding["id"], id) + } + evidence := finding["evidence"].([]any) + if len(evidence) != 1 { + t.Fatalf("evidence len = %d; want 1", len(evidence)) + } + ev := evidence[0].(map[string]any) + if ev["account_id"] != "acc-1" { + t.Errorf("evidence.account_id = %v; want acc-1", ev["account_id"]) + } + if ev["file_type"] != "structured_data" { + t.Errorf("evidence.file_type = %v; want structured_data", ev["file_type"]) + } + dataStr, ok := ev["data"].(string) + if !ok { + t.Fatalf("evidence.data not a string: %T", ev["data"]) + } + var blocks []map[string]any + if err := json.Unmarshal([]byte(dataStr), &blocks); err != nil { + t.Fatalf("evidence.data not a JSON array: %v", err) + } + if len(blocks) != 1 || blocks[0]["type"] != "prometheus" { + t.Errorf("blocks = %+v; want one prometheus block", blocks) + } +} + +// TestFindingResponse_GeneratesUUIDWhenNil verifies the convenience path +// where callers pass uuid.Nil and we mint one. A fresh UUID per Finding +// matches the legacy behaviour. +func TestFindingResponse_GeneratesUUIDWhenNil(t *testing.T) { + resp, err := FindingResponse("acc-x", uuid.Nil) + if err != nil { + t.Fatal(err) + } + finding := resp["findings"].([]any)[0].(map[string]any) + if finding["id"] == "" || finding["id"] == uuid.Nil.String() { + t.Errorf("expected fresh UUID; got %v", finding["id"]) + } +} + +func TestJSONBlock_StringifiesData(t *testing.T) { + block, err := JSONBlock(map[string]any{"A": map[string]any{"result_type": "vector"}}) + if err != nil { + t.Fatal(err) + } + if block["type"] != "json" { + t.Errorf("type = %v; want json", block["type"]) + } + s, ok := block["data"].(string) + if !ok { + t.Fatalf("data not a string: %T", block["data"]) + } + if !strings.Contains(s, `"result_type":"vector"`) { + t.Errorf("inner JSON missing result_type: %s", s) + } +} + +// TestFileBlock_DetectsExtension covers the small filename-extension parser. +// The "type" field is what api-server / UI uses to dispatch rendering. +func TestFileBlock_DetectsExtension(t *testing.T) { + cases := map[string]string{ + "frontend.log": "log", + "trace.json": "json", + "no-extension": "", + "file.with.dots.x": "x", + } + for filename, want := range cases { + got := FileBlock(filename, []byte("x"))["type"] + if got != want { + t.Errorf("FileBlock(%q).type = %v; want %q", filename, got, want) + } + } +} + +// TestFileBlock_WireShape locks the Python-quirk wire format that UI +// consumers (KubernetesPodYaml.tsx, KubernetesPodLogs.tsx, KubernetesWorkloads.jsx) +// depend on: data is base64-encoded and wrapped with a literal `b'...'` so the +// UI's `atob(d.data.slice(2, -1))` is correct. See the backend. +func TestFileBlock_WireShape(t *testing.T) { + payload := []byte("hello world") + block := FileBlock("x.yaml", payload) + if block["filename"] != "x.yaml" || block["type"] != "yaml" { + t.Fatalf("filename/type wrong: %+v", block) + } + wrapped, _ := block["data"].(string) + if !strings.HasPrefix(wrapped, "b'") || !strings.HasSuffix(wrapped, "'") { + t.Fatalf("data must be wrapped as b'': got %q", wrapped) + } + // Mimic the UI's strip + decode. + b64 := wrapped[2 : len(wrapped)-1] + decoded, err := decodeBase64(b64) + if err != nil { + t.Fatalf("base64 decode: %v", err) + } + if string(decoded) != "hello world" { + t.Errorf("decoded = %q; want hello world", decoded) + } +} + +func TestMarkdownBlock_Shape(t *testing.T) { + b := MarkdownBlock("# header\nbody") + if b["type"] != "markdown" { + t.Errorf("type = %v; want markdown", b["type"]) + } + if b["data"] != "# header\nbody" { + t.Errorf("data = %v; want passthrough", b["data"]) + } +} + +func TestErrorResponse_Shape(t *testing.T) { + r := ErrorResponse("nope", 404) + if r["success"] != false || r["msg"] != "nope" || r["error_code"] != 404 { + t.Errorf("ErrorResponse = %+v", r) + } +} diff --git a/runner/pkg/enrichers/logs.go b/runner/pkg/enrichers/logs.go new file mode 100644 index 0000000..5ef7ec9 --- /dev/null +++ b/runner/pkg/enrichers/logs.go @@ -0,0 +1,193 @@ +package enrichers + +import ( + "bytes" + "compress/gzip" + "context" + "errors" + "fmt" + "io" + "strings" + + "github.com/google/uuid" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" +) + +// LogsEnricher implements the `logs_enricher` action by fetching pod +// logs through the K8s API and wrapping them in a FileBlock-shaped Finding. +// +// The api-server caller (eventrule_actions_logs.go) sends: +// +// {"name": "", "namespace": ""} +// +// and parses the response with relay.ExecuteAndExtractResponse, then reads +// `data` (string), `filename` (string), `type` (string) from the resulting +// block. Our FileBlock helper produces all three. +type LogsEnricher struct { + clientset kubernetes.Interface + accountID string +} + +// NewLogsEnricher wires the action to a typed K8s client. accountID is +// stamped into the returned Finding's evidence. +func NewLogsEnricher(cs kubernetes.Interface, accountID string) *LogsEnricher { + return &LogsEnricher{clientset: cs, accountID: accountID} +} + +// Handle implements `logs_enricher`. Resolves `name` to a pod (either as a pod +// name directly, or as a workload whose pods we list and pick the first one), +// reads logs, returns a FileBlock-shaped Finding. +// +// Optional params (LogEnricherParams): +// +// container_name string +// previous bool +// tail_lines int (default 1000) +// since_time int (unix seconds; passed as &sinceSeconds=) +func (l *LogsEnricher) Handle(ctx context.Context, params map[string]any) (any, error) { + if l.clientset == nil { + return ErrorResponse("logs_enricher: kube client unavailable", 503), nil + } + name, _ := params["name"].(string) + namespace, _ := params["namespace"].(string) + if name == "" || namespace == "" { + return ErrorResponse("logs_enricher: name and namespace required", 400), nil + } + containerName, _ := params["container_name"].(string) + previous, _ := params["previous"].(bool) + tailLines := 1000 + if v, err := toInt(params["tail_lines"]); err == nil && v > 0 { + tailLines = v + } + + pod, err := l.resolvePod(ctx, namespace, name) + if err != nil { + return ErrorResponse(fmt.Sprintf("logs_enricher: %v", err), 404), nil + } + if containerName == "" { + containerName = pickContainer(pod) + } + + logs, err := l.readLogs(ctx, pod, containerName, previous, int64(tailLines)) + if err != nil { + return ErrorResponse(fmt.Sprintf("logs_enricher: read logs: %v", err), 502), nil + } + + // Gzip text files (.txt/.log) before sending. The UI's + // KubernetesPodLogs.tsx:68-71 expects `type === "gz"` and base64-decodes + // + gunzips. Filename gets `.gz` suffix; type derives from the new + // extension, so we must change the filename, not just compress. + gzLogs, err := gzipBytes(logs) + if err != nil { + return ErrorResponse(fmt.Sprintf("logs_enricher: gzip logs: %v", err), 500), nil + } + filename := pod.Name + ".log.gz" + block := FileBlock(filename, gzLogs) + // Stamp additional_info with pod/container/namespace for downstream + // insight extraction. + block["additional_info"] = map[string]any{ + "pod_name": pod.Name, + "container_name": containerName, + "namespace": pod.Namespace, + } + return FindingResponse(l.accountID, uuid.Nil, block) +} + +// gzipBytes compresses with the default gzip level (matches Python's +// gzip.compress default). +func gzipBytes(b []byte) ([]byte, error) { + var buf bytes.Buffer + gz := gzip.NewWriter(&buf) + if _, err := gz.Write(b); err != nil { + return nil, err + } + if err := gz.Close(); err != nil { + return nil, err + } + return buf.Bytes(), nil +} + +// resolvePod tries `name` as a pod first; on NotFound it falls back to listing +// pods in `namespace` whose ownerReferences chain (or naming convention) ties +// them to a workload named `name`. Returns the first pod found, preferring +// Running over other phases. +func (l *LogsEnricher) resolvePod(ctx context.Context, namespace, name string) (*corev1.Pod, error) { + if pod, err := l.clientset.CoreV1().Pods(namespace).Get(ctx, name, metav1.GetOptions{}); err == nil { + return pod, nil + } + // Workload fallback: list and match by owner chain (top-level workload). + list, err := l.clientset.CoreV1().Pods(namespace).List(ctx, metav1.ListOptions{}) + if err != nil { + return nil, fmt.Errorf("list pods: %w", err) + } + var fallback *corev1.Pod + for i := range list.Items { + p := &list.Items[i] + if !ownedBy(p, name) { + continue + } + if p.Status.Phase == corev1.PodRunning { + return p, nil + } + if fallback == nil { + fallback = p + } + } + if fallback != nil { + return fallback, nil + } + return nil, errors.New("no pods found for workload") +} + +// ownedBy returns true if any link in pod's owner chain (walking up via name +// prefix matching, since fake clients don't track ReplicaSet→Deployment) ends +// at a controller named `workload`. We accept both: +// - pod owned directly by workload (DaemonSet, StatefulSet, …) +// - pod owned by a ReplicaSet whose name starts with workload+"-" (Deployment). +func ownedBy(pod *corev1.Pod, workload string) bool { + for _, ref := range pod.OwnerReferences { + if ref.Controller == nil || !*ref.Controller { + continue + } + if ref.Name == workload { + return true + } + // Deployment → ReplicaSet → Pod: RS is named "-" + if ref.Kind == "ReplicaSet" && strings.HasPrefix(ref.Name, workload+"-") { + return true + } + } + return false +} + +// pickContainer returns the container name to read logs from. The legacy +// implementation picks either the alert's container label (if it matches +// one in the pod) or the first container; we don't have alert context +// here, so first container wins. +func pickContainer(pod *corev1.Pod) string { + if len(pod.Spec.Containers) > 0 { + return pod.Spec.Containers[0].Name + } + return "" +} + +func (l *LogsEnricher) readLogs(ctx context.Context, pod *corev1.Pod, container string, previous bool, tailLines int64) ([]byte, error) { + opts := &corev1.PodLogOptions{ + Container: container, + Previous: previous, + TailLines: &tailLines, + } + req := l.clientset.CoreV1().Pods(pod.Namespace).GetLogs(pod.Name, opts) + stream, err := req.Stream(ctx) + if err != nil { + return nil, err + } + defer func() { _ = stream.Close() }() + var buf bytes.Buffer + if _, err := io.Copy(&buf, stream); err != nil { + return nil, err + } + return buf.Bytes(), nil +} diff --git a/runner/pkg/enrichers/logs_test.go b/runner/pkg/enrichers/logs_test.go new file mode 100644 index 0000000..20d7734 --- /dev/null +++ b/runner/pkg/enrichers/logs_test.go @@ -0,0 +1,137 @@ +package enrichers + +import ( + "bytes" + "compress/gzip" + "context" + "encoding/base64" + "encoding/json" + "io" + "strings" + "testing" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes/fake" + "k8s.io/utils/ptr" +) + +// TestLogsEnricher_PodResolutionAndShape covers two things at once: pod +// resolution by direct name (vs workload-fallback), and the FileBlock-shaped +// Finding the api-server caller (eventrule_actions_logs.go) reads. The fake +// clientset returns "fake logs" for any pod by default. +func TestLogsEnricher_PodResolutionAndShape(t *testing.T) { + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{Name: "frontend", Namespace: "shop"}, + Spec: corev1.PodSpec{ + Containers: []corev1.Container{{Name: "web"}}, + }, + Status: corev1.PodStatus{Phase: corev1.PodRunning}, + } + cs := fake.NewClientset(pod) + + l := NewLogsEnricher(cs, "acc-1") + resp, err := l.Handle(context.Background(), map[string]any{ + "name": "frontend", + "namespace": "shop", + }) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + if r["success"] != true { + t.Fatalf("success = %v: %+v", r["success"], r) + } + evidence := r["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + if err := json.Unmarshal([]byte(evidence["data"].(string)), &blocks); err != nil { + t.Fatal(err) + } + if len(blocks) != 1 { + t.Fatalf("blocks = %d; want 1", len(blocks)) + } + // Text files (.log) get gzipped before sending — the resulting type + // is "gz", filename has the .gz suffix appended. + // UI's KubernetesPodLogs.tsx:68-71 matches on type === "gz". + if blocks[0]["type"] != "gz" { + t.Errorf("type = %v; want gz (.log files get gzipped)", blocks[0]["type"]) + } + if blocks[0]["filename"] != "frontend.log.gz" { + t.Errorf("filename = %v; want frontend.log.gz", blocks[0]["filename"]) + } + // Decode the b'' wrapper, gunzip, expect the fake-client's + // "fake logs" payload. + wrapped, _ := blocks[0]["data"].(string) + if !strings.HasPrefix(wrapped, "b'") || !strings.HasSuffix(wrapped, "'") { + t.Fatalf("data must be wrapped as b'': got %q", wrapped) + } + b64 := wrapped[2 : len(wrapped)-1] + gz, err := base64.StdEncoding.DecodeString(b64) + if err != nil { + t.Fatalf("base64 decode: %v", err) + } + gr, err := gzip.NewReader(bytes.NewReader(gz)) + if err != nil { + t.Fatalf("gzip reader: %v", err) + } + plain, _ := io.ReadAll(gr) + if !strings.Contains(string(plain), "fake logs") { + t.Errorf("decoded log payload missing fake-client marker: %q", plain) + } + + add := blocks[0]["additional_info"].(map[string]any) + if add["pod_name"] != "frontend" || add["container_name"] != "web" || add["namespace"] != "shop" { + t.Errorf("additional_info wrong: %+v", add) + } +} + +// TestLogsEnricher_WorkloadFallback covers the case where `name` is the +// workload name and the agent has to walk pods to find an owned one. The +// fake clientset doesn't materialize ownerReferences automatically, so we +// stamp them. We test both Deployment-style (ReplicaSet middle) and direct +// ownership (StatefulSet/DaemonSet pattern). +func TestLogsEnricher_WorkloadFallback(t *testing.T) { + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: "web-77c7-x9q", + Namespace: "shop", + OwnerReferences: []metav1.OwnerReference{{ + Kind: "ReplicaSet", + Name: "web-77c7", + Controller: ptr.To(true), + }}, + }, + Spec: corev1.PodSpec{Containers: []corev1.Container{{Name: "app"}}}, + Status: corev1.PodStatus{Phase: corev1.PodRunning}, + } + cs := fake.NewClientset(pod) + l := NewLogsEnricher(cs, "acc-1") + resp, err := l.Handle(context.Background(), map[string]any{ + "name": "web", // workload, not pod + "namespace": "shop", + }) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + if r["success"] != true { + t.Fatalf("success = %v: %+v", r["success"], r) + } +} + +func TestLogsEnricher_MissingNameErrors(t *testing.T) { + cs := fake.NewClientset() + l := NewLogsEnricher(cs, "acc-1") + resp, _ := l.Handle(context.Background(), map[string]any{"namespace": "x"}) + if resp.(map[string]any)["success"] != false { + t.Error("expected success=false for missing name") + } +} + +func TestLogsEnricher_NilClientErrors(t *testing.T) { + l := NewLogsEnricher(nil, "acc-1") + resp, _ := l.Handle(context.Background(), map[string]any{"name": "x", "namespace": "y"}) + if resp.(map[string]any)["success"] != false { + t.Error("expected success=false when kube client unavailable") + } +} diff --git a/runner/pkg/enrichers/loki.go b/runner/pkg/enrichers/loki.go new file mode 100644 index 0000000..a3af769 --- /dev/null +++ b/runner/pkg/enrichers/loki.go @@ -0,0 +1,160 @@ +package enrichers + +import ( + "context" + "encoding/json" + "fmt" + "io" + "net/http" + "net/url" + "strings" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" + "github.com/nudgebee/nudgebee-agent/pkg/observability/loki" +) + +// LokiCompat implements `query_loki` / `query_loki_labels` / +// `query_grafana_loki_label_values` / `query_grafana_loki_series` actions. +// +// These differ from the agent's existing thin loki_* primitives in two ways: +// +// 1. The action_params shape is flat: +// query_loki → params.query is a raw URL query string +// appended verbatim after `?` +// query_loki_labels → same pattern +// query_grafana_loki_label_values → params.{label, query} +// query_grafana_loki_series → params is a dict of GET params +// +// 2. The wire response is `{success, data: }`, NOT a +// Finding. +type LokiCompat struct { + c *loki.Client +} + +func NewLokiCompat(c *loki.Client) *LokiCompat { return &LokiCompat{c: c} } + +// Handlers returns the handler map. +func (l *LokiCompat) Handlers() map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "query_loki": l.queryLoki, + "query_loki_labels": l.queryLokiLabels, + "query_grafana_loki_label_values": l.queryLokiLabelValues, + "query_grafana_loki_series": l.queryLokiSeries, + } +} + +// queryLoki mirrors the backend — `params.query` is the +// already-formed URL query string (e.g. "query={...}&start=...&end=..."), and +// we GET /loki/api/v1/query_range?. +func (l *LokiCompat) queryLoki(ctx context.Context, params map[string]any) (any, error) { + q, _ := params["query"].(string) + body, err := l.rawGet(ctx, "/loki/api/v1/query_range?"+strings.TrimPrefix(q, "?")) + return wrapData(body, err), nil +} + +func (l *LokiCompat) queryLokiLabels(ctx context.Context, params map[string]any) (any, error) { + q, _ := params["query"].(string) + path := "/loki/api/v1/labels" + if q != "" { + path += "?" + strings.TrimPrefix(q, "?") + } + body, err := l.rawGet(ctx, path) + return wrapData(body, err), nil +} + +func (l *LokiCompat) queryLokiLabelValues(ctx context.Context, params map[string]any) (any, error) { + label, _ := params["label"].(string) + q, _ := params["query"].(string) + if label == "" { + return map[string]any{ + "success": false, + "data": map[string]any{"error": "label is required"}, + }, nil + } + path := "/loki/api/v1/label/" + url.PathEscape(label) + "/values" + if q != "" { + path += "?" + strings.TrimPrefix(q, "?") + } + body, err := l.rawGet(ctx, path) + return wrapData(body, err), nil +} + +func (l *LokiCompat) queryLokiSeries(ctx context.Context, params map[string]any) (any, error) { + v := url.Values{} + for k, val := range params { + switch x := val.(type) { + case string: + v.Set(k, x) + case []any: + for _, item := range x { + if s, ok := item.(string); ok { + v.Add(k, s) + } + } + case []string: + for _, s := range x { + v.Add(k, s) + } + } + } + path := "/loki/api/v1/series" + if enc := v.Encode(); enc != "" { + path += "?" + enc + } + body, err := l.rawGet(ctx, path) + return wrapData(body, err), nil +} + +// rawGet talks to Loki via the existing client's BaseURL + ExtraHeaders, but +// without the `loki.Client` wrappers' typed-param handling. We need raw bytes +// because Loki returns either JSON (200) or text (non-200), and the +// api-server caller passes either through as-is. +func (l *LokiCompat) rawGet(ctx context.Context, path string) ([]byte, error) { + if l.c == nil || l.c.BaseURL == "" { + return nil, fmt.Errorf("loki: not configured") + } + req, err := http.NewRequestWithContext(ctx, http.MethodGet, l.c.BaseURL+path, nil) + if err != nil { + return nil, err + } + for k, vv := range l.c.ExtraHeaders { + for _, v := range vv { + req.Header.Add(k, v) + } + } + resp, err := l.c.HTTP.Do(req) + if err != nil { + return nil, err + } + defer func() { _ = resp.Body.Close() }() + body, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + // Loki returns the body as text on non-200. We surface as + // `data: ""` rather than an error so the wire shape stays + // uniform. + return body, nil + } + return body, nil +} + +// wrapData mirrors the backend's response shape — `data` is the parsed JSON +// when the body is valid JSON, or a string when Loki returned plain text. +func wrapData(body []byte, err error) map[string]any { + if err != nil { + return map[string]any{ + "success": false, + "data": map[string]any{"error": err.Error()}, + } + } + if len(body) == 0 { + return map[string]any{"success": true, "data": nil} + } + var parsed any + if json.Unmarshal(body, &parsed) == nil { + return map[string]any{"success": true, "data": parsed} + } + return map[string]any{"success": true, "data": string(body)} +} diff --git a/runner/pkg/enrichers/prom_result.go b/runner/pkg/enrichers/prom_result.go new file mode 100644 index 0000000..c7c9a32 --- /dev/null +++ b/runner/pkg/enrichers/prom_result.go @@ -0,0 +1,161 @@ +package enrichers + +import ( + "encoding/json" + "fmt" + "strconv" +) + +// PrometheusQueryResultDict converts a raw Prometheus query response (the +// `data` field returned by `/api/v1/query` / `query_range`) into the +// PrometheusQueryResult wire shape consumed by downstream services. +// +// The shape is: +// +// { +// "result_type": "vector"|"matrix"|"scalar"|"string"|"error", +// "vector_result": [{metric: {..}, value: {timestamp, value}}] | null, +// "series_list_result": [{metric: {..}, timestamps: [..], values: [..]}] | null, +// "scalar_result": {timestamp, value} | null, +// "string_result": "..." | null +// } +// +// Only one of the four *_result fields is populated; the others are explicit +// nulls (json: omitempty would drop them, but consumers expect nulls). +// prometheusResponseEnvelope mirrors the top-level shape Prometheus emits at +// /api/v1/query and /api/v1/query_range. Shared between +// PrometheusQueryResultDict and runOneInstantRaw so the two stay aligned. +type prometheusResponseEnvelope struct { + Status string `json:"status"` + Data struct { + ResultType string `json:"resultType"` + Result json.RawMessage `json:"result"` + } `json:"data"` + ErrorType string `json:"errorType"` + Error string `json:"error"` +} + +func PrometheusQueryResultDict(raw json.RawMessage) (map[string]any, error) { + if len(raw) == 0 { + return nil, fmt.Errorf("empty Prometheus response") + } + var top prometheusResponseEnvelope + if err := json.Unmarshal(raw, &top); err != nil { + return nil, fmt.Errorf("decode prometheus response: %w", err) + } + if top.Status != "success" { + return map[string]any{ + "result_type": "error", + "vector_result": nil, + "series_list_result": nil, + "scalar_result": nil, + "string_result": top.Error, + }, nil + } + + out := map[string]any{ + "result_type": top.Data.ResultType, + "vector_result": nil, + "series_list_result": nil, + "scalar_result": nil, + "string_result": nil, + } + + switch top.Data.ResultType { + case "vector": + var raws []struct { + Metric map[string]string `json:"metric"` + Value []any `json:"value"` + } + if err := json.Unmarshal(top.Data.Result, &raws); err != nil { + return nil, fmt.Errorf("decode vector result: %w", err) + } + out["vector_result"] = vectorToWire(raws) + case "matrix": + var raws []struct { + Metric map[string]string `json:"metric"` + Values [][]any `json:"values"` + } + if err := json.Unmarshal(top.Data.Result, &raws); err != nil { + return nil, fmt.Errorf("decode matrix result: %w", err) + } + out["series_list_result"] = matrixToWire(raws) + case "scalar": + var raw []any + if err := json.Unmarshal(top.Data.Result, &raw); err != nil { + return nil, fmt.Errorf("decode scalar result: %w", err) + } + out["scalar_result"] = scalarToWire(raw) + case "string": + var raw any + _ = json.Unmarshal(top.Data.Result, &raw) + out["string_result"] = fmt.Sprintf("%v", raw) + default: + return nil, fmt.Errorf("unknown result_type %q", top.Data.ResultType) + } + return out, nil +} + +// vectorToWire turns Prometheus instant samples into the +// `[{metric, value: {timestamp, value}}]` wire shape. value is always a +// string, timestamp always a float. +func vectorToWire(raws []struct { + Metric map[string]string `json:"metric"` + Value []any `json:"value"` +}) []map[string]any { + out := make([]map[string]any, 0, len(raws)) + for _, r := range raws { + ts, val := unpackScalar(r.Value) + out = append(out, map[string]any{ + "metric": r.Metric, + "value": map[string]any{"timestamp": ts, "value": val}, + }) + } + return out +} + +// matrixToWire turns Prometheus range samples into the +// `[{metric, timestamps: [..floats..], values: [..strings..]}]` wire shape — +// [ts, val] pairs split into parallel arrays. +func matrixToWire(raws []struct { + Metric map[string]string `json:"metric"` + Values [][]any `json:"values"` +}) []map[string]any { + out := make([]map[string]any, 0, len(raws)) + for _, r := range raws { + timestamps := make([]float64, 0, len(r.Values)) + values := make([]string, 0, len(r.Values)) + for _, v := range r.Values { + ts, val := unpackScalar(v) + timestamps = append(timestamps, ts) + values = append(values, val) + } + out = append(out, map[string]any{ + "metric": r.Metric, + "timestamps": timestamps, + "values": values, + }) + } + return out +} + +func scalarToWire(raw []any) map[string]any { + ts, val := unpackScalar(raw) + return map[string]any{"timestamp": ts, "value": val} +} + +// unpackScalar coerces the 2-element [ts, value] Prometheus sample to +// (float64, string). +func unpackScalar(raw []any) (float64, string) { + if len(raw) < 2 { + return 0, "" + } + var ts float64 + switch t := raw[0].(type) { + case float64: + ts = t + case string: + ts, _ = strconv.ParseFloat(t, 64) + } + return ts, fmt.Sprintf("%v", raw[1]) +} diff --git a/runner/pkg/enrichers/prom_result_test.go b/runner/pkg/enrichers/prom_result_test.go new file mode 100644 index 0000000..88b932d --- /dev/null +++ b/runner/pkg/enrichers/prom_result_test.go @@ -0,0 +1,85 @@ +package enrichers + +import ( + "encoding/json" + "testing" +) + +// TestPrometheusQueryResultDict checks each result_type round-trips through +// the same shape PrometheusQueryResult.dict() produces. These wire +// shapes feed directly into PrometheusBlock.data, which api-server +// walks via vector_result / series_list_result / scalar_result. +func TestPrometheusQueryResultDict(t *testing.T) { + cases := []struct { + name string + body string + assert func(*testing.T, map[string]any) + }{ + { + name: "vector", + body: `{"status":"success","data":{"resultType":"vector","result":[{"metric":{"job":"x"},"value":[1700000000,"1.5"]}]}}`, + assert: func(t *testing.T, d map[string]any) { + if d["result_type"] != "vector" { + t.Errorf("result_type = %v", d["result_type"]) + } + vr, ok := d["vector_result"].([]map[string]any) + if !ok || len(vr) != 1 { + t.Fatalf("vector_result missing/empty: %T %v", d["vector_result"], d) + } + val := vr[0]["value"].(map[string]any) + if val["timestamp"].(float64) != 1700000000 || val["value"] != "1.5" { + t.Errorf("value = %+v", val) + } + }, + }, + { + name: "matrix", + body: `{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"pod":"p"},"values":[[1700,"1"],[1760,"2"]]}]}}`, + assert: func(t *testing.T, d map[string]any) { + if d["result_type"] != "matrix" { + t.Errorf("result_type = %v", d["result_type"]) + } + rs, ok := d["series_list_result"].([]map[string]any) + if !ok || len(rs) != 1 { + t.Fatalf("series_list_result missing") + } + ts := rs[0]["timestamps"].([]float64) + vs := rs[0]["values"].([]string) + if len(ts) != 2 || ts[0] != 1700 || ts[1] != 1760 { + t.Errorf("timestamps = %v", ts) + } + if len(vs) != 2 || vs[0] != "1" || vs[1] != "2" { + t.Errorf("values = %v", vs) + } + }, + }, + { + name: "scalar", + body: `{"status":"success","data":{"resultType":"scalar","result":[1700,"42"]}}`, + assert: func(t *testing.T, d map[string]any) { + s := d["scalar_result"].(map[string]any) + if s["timestamp"].(float64) != 1700 || s["value"] != "42" { + t.Errorf("scalar = %+v", s) + } + }, + }, + { + name: "error", + body: `{"status":"error","errorType":"bad_data","error":"oh no","data":{"resultType":"","result":null}}`, + assert: func(t *testing.T, d map[string]any) { + if d["result_type"] != "error" || d["string_result"] != "oh no" { + t.Errorf("error result = %+v", d) + } + }, + }, + } + for _, c := range cases { + t.Run(c.name, func(t *testing.T) { + out, err := PrometheusQueryResultDict(json.RawMessage(c.body)) + if err != nil { + t.Fatalf("PrometheusQueryResultDict: %v", err) + } + c.assert(t, out) + }) + } +} diff --git a/runner/pkg/enrichers/prometheus.go b/runner/pkg/enrichers/prometheus.go new file mode 100644 index 0000000..c616fba --- /dev/null +++ b/runner/pkg/enrichers/prometheus.go @@ -0,0 +1,495 @@ +package enrichers + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "strconv" + "strings" + "sync" + "time" + + "github.com/google/uuid" + + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// PromQuerier is the subset of *prometheus.Client this package needs. We type +// it as an interface so tests can drop in a fake without spinning up an HTTP +// server. +type PromQuerier interface { + Query(ctx context.Context, query, atTime, timeout string) (raw []byte, err error) + QueryRange(ctx context.Context, query, start, end, step, timeout string) (raw []byte, err error) + LabelValues(ctx context.Context, label, start, end string, match []string) (raw []byte, err error) +} + +// promClientAdapter adapts *prometheus.Client (which returns json.RawMessage) +// to the []byte signature above. Trivial; just here so we don't put []byte +// into the package public API of the underlying client. +type promClientAdapter struct{ c *prometheus.Client } + +func (a promClientAdapter) Query(ctx context.Context, q, t, to string) ([]byte, error) { + r, err := a.c.Query(ctx, q, t, to) + return []byte(r), err +} + +func (a promClientAdapter) QueryRange(ctx context.Context, q, s, e, st, to string) ([]byte, error) { + r, err := a.c.QueryRange(ctx, q, s, e, st, to) + return []byte(r), err +} + +func (a promClientAdapter) LabelValues(ctx context.Context, label, start, end string, match []string) ([]byte, error) { + r, err := a.c.LabelValues(ctx, label, start, end, match) + return []byte(r), err +} + +// PrometheusEnricher implements the `prometheus_enricher` and +// `prometheus_queries_enricher` actions. The api-server callers +// talk to these by name and parse the wire shape via +// relay.ExecuteAndExtractResponse. +type PrometheusEnricher struct { + q PromQuerier + accountID string +} + +// NewPrometheusEnricher wires the enricher to a *prometheus.Client. accountID +// is stamped into the Finding's evidence. +func NewPrometheusEnricher(c *prometheus.Client, accountID string) *PrometheusEnricher { + return &PrometheusEnricher{q: promClientAdapter{c: c}, accountID: accountID} +} + +// HandleEnricher implements `prometheus_enricher`. Single-query path — +// the result is wrapped in a PrometheusBlock. +// +// Action params (PrometheusQueryParams): +// +// promql_query string (required, unless promql_queries is set) +// promql_queries [{key, query}] (alt; routes through HandleQueriesEnricher) +// instant bool (default false → range query) +// duration supports {duration_minutes} OR {starts_at, ends_at} +// step string (range queries only, defaults to "60") +// +// If `promql_queries` is set, we delegate. +func (p *PrometheusEnricher) HandleEnricher(ctx context.Context, params map[string]any) (any, error) { + queries, _ := params["promql_queries"].([]any) + if len(queries) > 0 { + return p.HandleQueriesEnricher(ctx, params) + } + query, _ := params["promql_query"].(string) + if query == "" { + return ErrorResponse("Invalid request, prometheus_enricher requires a promql query.", 400), nil + } + startsAt, endsAt, err := parseDuration(params["duration"]) + if err != nil { + return ErrorResponse(err.Error(), 400), nil + } + instant, _ := params["instant"].(bool) + + resultDict, err := p.runOne(ctx, query, instant, startsAt, endsAt, stringStep(params)) + if err != nil { + // Still emit a PrometheusBlock with result_type="error" so callers + // don't have to special-case. + resultDict = map[string]any{ + "result_type": "error", + "vector_result": nil, + "series_list_result": nil, + "scalar_result": nil, + "string_result": err.Error(), + } + } + block := PrometheusBlock(resultDict, query) + return FindingResponse(p.accountID, uuid.Nil, block) +} + +// HandleQueriesEnricher implements `prometheus_queries_enricher`. Multi-query +// path — packs `{key: }` into one JsonBlock. +// +// Per-key wire shape matches the legacy Python prometheus_queries_enricher +// contract that downstream consumers (api-server pod_metric_enricher, +// workflow engine, LLM server, relay-server's /prometheus proxy) were +// written against: +// +// instant + success → bare Prometheus result array, exactly as Prom returns +// under data.result: [{metric, value:[ts,"val"]}, ...] +// range + success → PrometheusQueryResult.dict() envelope with +// series_list_result populated +// any + error → envelope with result_type="error", string_result= +// +// action params: +// +// promql_queries [{key, query}] (required) +// instant bool +// duration same as enricher (object form: {ends_at, starts_at}) +// steps string (note: "steps" here, not "step") +func (p *PrometheusEnricher) HandleQueriesEnricher(ctx context.Context, params map[string]any) (any, error) { + rawQueries, _ := params["promql_queries"].([]any) + if len(rawQueries) == 0 { + // Single-query callers may have routed here by mistake; degrade gracefully. + if q, _ := params["promql_query"].(string); q != "" { + rawQueries = []any{map[string]any{"key": "A", "query": q}} + } else { + return ErrorResponse("Invalid request, prometheus_enricher requires a promql query.", 400), nil + } + } + startsAt, endsAt, err := parseDuration(params["duration"]) + if err != nil { + return ErrorResponse(err.Error(), 400), nil + } + instant, _ := params["instant"].(bool) + step := stringStep(params) + + type kv struct { + key, query string + } + queries := make([]kv, 0, len(rawQueries)) + for _, q := range rawQueries { + m, ok := q.(map[string]any) + if !ok { + continue + } + key, _ := m["key"].(string) + qstr, _ := m["query"].(string) + if qstr == "" { + continue + } + queries = append(queries, kv{key: key, query: qstr}) + } + + type slot struct { + key string + // res is []any for instant+success (bare Prometheus result array), + // map[string]any otherwise (range envelope, or error envelope). + res any + } + results := make([]slot, len(queries)) + var wg sync.WaitGroup + for i, q := range queries { + i, q := i, q + wg.Add(1) + go func() { + defer wg.Done() + if instant { + list, runErr := p.runOneInstantRaw(ctx, q.query, endsAt) + if runErr != nil { + results[i] = slot{key: q.key, res: errorEnvelope(runErr)} + return + } + results[i] = slot{key: q.key, res: list} + return + } + r, runErr := p.runOne(ctx, q.query, false, startsAt, endsAt, step) + if runErr != nil { + r = errorEnvelope(runErr) + } + results[i] = slot{key: q.key, res: r} + }() + } + wg.Wait() + + out := make(map[string]any, len(results)) + for _, s := range results { + out[s.key] = s.res + } + + block, err := JSONBlock(out) + if err != nil { + return nil, err + } + return FindingResponse(p.accountID, uuid.Nil, block) +} + +func errorEnvelope(err error) map[string]any { + return map[string]any{ + "result_type": "error", + "vector_result": nil, + "series_list_result": nil, + "scalar_result": nil, + "string_result": err.Error(), + } +} + +// HandleLabels implements `prometheus_labels`. Despite the name, this action +// returns the *values* for a single label (Prometheus +// /api/v1/label//values), not the list of all label names — it passes +// through to `prom.get_label_values`. The two production callers +// + chronosphere.go:131 +// + llm/rag-server) all send `{label_name: "..."}` and unwrap a JsonBlock +// of {result_type, data, error} via parseRelayData → decodeInnerData. +// +// Output shape: a Finding with one JsonBlock whose payload is +// +// {"result_type": "success", "data": [...], "error": ""} (success) +// {"result_type": "error", "data": [], "error": "..."} (failure) +// +// Action params (PrometheusLabelsValueParams): +// +// label_name string (required; "__name__" returns the metric list) +// start string (optional; unix seconds) +// end string (optional; unix seconds) +// match[] []string (optional; series selector filter) +func (p *PrometheusEnricher) HandleLabels(ctx context.Context, params map[string]any) (any, error) { + labelName, _ := params["label_name"].(string) + if labelName == "" { + return p.labelsErrorFinding("prometheus_labels: label_name is required") + } + start, _ := params["start"].(string) + end, _ := params["end"].(string) + match := paramStringSlice(params, "match[]") + + raw, err := p.q.LabelValues(ctx, labelName, start, end, match) + if err != nil { + return p.labelsErrorFinding(fmt.Sprintf("prometheus_labels: %v", err)) + } + values, err := extractPrometheusDataArray(raw) + if err != nil { + return p.labelsErrorFinding(fmt.Sprintf("prometheus_labels: parse response: %v", err)) + } + payload := map[string]any{ + "result_type": "success", + "data": values, + "error": "", + } + block, err := JSONBlock(payload) + if err != nil { + return nil, err + } + return FindingResponse(p.accountID, uuid.Nil, block) +} + +// labelsErrorFinding emits the failure branch: the Finding still succeeds +// (success=true at the dispatcher level) but the inner JsonBlock carries +// result_type=error so callers can distinguish a network/Prometheus +// failure from "label has no values". +func (p *PrometheusEnricher) labelsErrorFinding(msg string) (any, error) { + payload := map[string]any{ + "result_type": "error", + "data": []any{}, + "error": msg, + } + block, err := JSONBlock(payload) + if err != nil { + return nil, err + } + return FindingResponse(p.accountID, uuid.Nil, block) +} + +// extractPrometheusDataArray pulls `.data` out of a Prometheus +// `{status,data,...}` envelope as a []any. Returns an empty slice when +// status is success but data is null (Prometheus serves empty as null); +// returns an error when status is non-success or the shape is malformed. +func extractPrometheusDataArray(raw []byte) ([]any, error) { + var env struct { + Status string `json:"status"` + Data []any `json:"data"` + Error string `json:"error,omitempty"` + } + if err := json.Unmarshal(raw, &env); err != nil { + return nil, err + } + if env.Status != "success" { + if env.Error == "" { + env.Error = "non-success status: " + env.Status + } + return nil, errors.New(env.Error) + } + if env.Data == nil { + return []any{}, nil + } + return env.Data, nil +} + +// paramStringSlice extracts a []string from a param that could be a Go +// []string, []any of strings, or a single string. Mirrors observability/ +// prometheus.strSlice — duplicated here to keep enrichers free of an import +// cycle. (We don't import the observability package's helpers; the seven-line +// duplication is cheaper than another internal helper package.) +func paramStringSlice(p map[string]any, key string) []string { + if p == nil { + return nil + } + switch v := p[key].(type) { + case nil: + return nil + case string: + return []string{v} + case []string: + return v + case []any: + out := make([]string, 0, len(v)) + for _, x := range v { + if s, ok := x.(string); ok { + out = append(out, s) + } + } + return out + } + return nil +} + +// runOneInstantRaw executes an instant query and returns the bare +// `data.result` array from the Prometheus response — the same shape the +// legacy Python prometheus_queries_enricher emitted from +// prom.custom_query() (each element is `{metric: {...}, value: [ts, "val"]}`). +// +// Downstream consumers in api-server (pod_metric_enricher, workflow +// engine, LLM server) and relay-server's /prometheus proxy parse this +// shape directly and silently produce empty/wrong results when handed +// the PrometheusQueryResult envelope instead. +// +// On HTTP / parse error or non-success Prometheus status, returns the +// error so HandleQueriesEnricher can wrap it into the legacy error +// envelope (result_type="error"). +func (p *PrometheusEnricher) runOneInstantRaw(ctx context.Context, query string, endsAt time.Time) ([]any, error) { + t := "" + if !endsAt.IsZero() { + t = strconv.FormatInt(endsAt.Unix(), 10) + } + raw, err := p.q.Query(ctx, query, t, "") + if err != nil { + return nil, err + } + var env prometheusResponseEnvelope + if err := json.Unmarshal(raw, &env); err != nil { + return nil, fmt.Errorf("decode prometheus response: %w", err) + } + if env.Status != "success" { + msg := env.Error + if msg == "" { + msg = "non-success status: " + env.Status + } + return nil, errors.New(msg) + } + // `result` is required in a successful Prom response, but guard the + // missing-field case explicitly: json.Unmarshal(nil, &result) returns + // "unexpected end of JSON input", not a no-op. + if len(env.Data.Result) == 0 { + return []any{}, nil + } + var result []any + if err := json.Unmarshal(env.Data.Result, &result); err != nil { + return nil, fmt.Errorf("decode result array: %w", err) + } + if result == nil { + return []any{}, nil + } + return result, nil +} + +// runOne executes a single query and returns the PrometheusQueryResult.dict() +// shape. instant=true → /api/v1/query at endsAt; instant=false → query_range. +func (p *PrometheusEnricher) runOne(ctx context.Context, query string, instant bool, startsAt, endsAt time.Time, step string) (map[string]any, error) { + var raw []byte + var err error + if instant { + t := "" + if !endsAt.IsZero() { + t = strconv.FormatInt(endsAt.Unix(), 10) + } + raw, err = p.q.Query(ctx, query, t, "") + } else { + if startsAt.IsZero() || endsAt.IsZero() { + return nil, errors.New("prometheus_enricher: range query requires duration with starts_at and ends_at") + } + s := strconv.FormatInt(startsAt.Unix(), 10) + e := strconv.FormatInt(endsAt.Unix(), 10) + if step == "" { + step = "60" + } + raw, err = p.q.QueryRange(ctx, query, s, e, step, "") + } + if err != nil { + return nil, err + } + return PrometheusQueryResultDict(raw) +} + +// parseDuration parses the PrometheusDuration / PrometheusDateRange union. +// Accepts: +// +// {"duration_minutes": 5} → starts_at = now - 5m, ends_at = now +// {"starts_at":"2024-... UTC", "ends_at":"..."} → fixed window +// [{...}] → list-wrapped variants +// nil → both zero (caller must handle for instant) +// +// We accept "%Y-%m-%d %H:%M:%S UTC" and RFC3339 transparently. +func parseDuration(raw any) (time.Time, time.Time, error) { + if raw == nil { + return time.Time{}, time.Time{}, nil + } + if list, ok := raw.([]any); ok && len(list) > 0 { + raw = list[0] + } + m, ok := raw.(map[string]any) + if !ok { + return time.Time{}, time.Time{}, fmt.Errorf("duration: unexpected type %T", raw) + } + if dm, ok := m["duration_minutes"]; ok { + mins, err := toInt(dm) + if err != nil { + return time.Time{}, time.Time{}, fmt.Errorf("duration_minutes: %w", err) + } + now := time.Now().UTC().Truncate(time.Second) + return now.Add(-time.Duration(mins) * time.Minute), now, nil + } + starts, _ := m["starts_at"].(string) + ends, _ := m["ends_at"].(string) + if starts == "" || ends == "" { + return time.Time{}, time.Time{}, errors.New("duration: starts_at and ends_at are required") + } + s, err := parseTimestamp(starts) + if err != nil { + return time.Time{}, time.Time{}, fmt.Errorf("starts_at: %w", err) + } + e, err := parseTimestamp(ends) + if err != nil { + return time.Time{}, time.Time{}, fmt.Errorf("ends_at: %w", err) + } + return s, e, nil +} + +// parseTimestamp accepts the formats callers send (including the +// Postgres-style "2006-01-02 15:04:05 UTC" some callers emit). +func parseTimestamp(s string) (time.Time, error) { + s = strings.TrimSpace(s) + for _, layout := range []string{ + "2006-01-02 15:04:05 UTC", + "2006-01-02 15:04:05 MST", + time.RFC3339, + time.RFC3339Nano, + } { + if t, err := time.Parse(layout, s); err == nil { + return t.UTC(), nil + } + } + return time.Time{}, fmt.Errorf("unrecognised timestamp %q", s) +} + +func toInt(v any) (int, error) { + switch x := v.(type) { + case int: + return x, nil + case int64: + return int(x), nil + case float64: + return int(x), nil + case string: + i, err := strconv.Atoi(x) + return i, err + } + return 0, fmt.Errorf("expected number, got %T", v) +} + +func stringStep(params map[string]any) string { + // "step" is used in prometheus_enricher and "steps" in + // prometheus_queries_enricher. Accept both. + for _, key := range []string{"step", "steps"} { + if s, ok := params[key].(string); ok && s != "" { + return s + } + if n, ok := params[key].(float64); ok && n > 0 { + return strconv.FormatFloat(n, 'f', -1, 64) + } + } + return "" +} diff --git a/runner/pkg/enrichers/prometheus_test.go b/runner/pkg/enrichers/prometheus_test.go new file mode 100644 index 0000000..03ee2a9 --- /dev/null +++ b/runner/pkg/enrichers/prometheus_test.go @@ -0,0 +1,423 @@ +package enrichers + +import ( + "context" + "encoding/json" + "errors" + "testing" +) + +// fakeProm satisfies PromQuerier with canned responses keyed by query string. +// Concurrent-safe (HandleQueriesEnricher fans queries out in parallel). +type fakeProm struct { + instant map[string][]byte + rng map[string][]byte + labels map[string][]byte + labelsErr error +} + +func (f *fakeProm) Query(_ context.Context, q, _, _ string) ([]byte, error) { + return f.instant[q], nil +} +func (f *fakeProm) QueryRange(_ context.Context, q, _, _, _, _ string) ([]byte, error) { + return f.rng[q], nil +} +func (f *fakeProm) LabelValues(_ context.Context, label, _, _ string, _ []string) ([]byte, error) { + if f.labelsErr != nil { + return nil, f.labelsErr + } + if v, ok := f.labels[label]; ok { + return v, nil + } + return []byte(`{"status":"success","data":[]}`), nil +} + +const vectorBody = `{"status":"success","data":{"resultType":"vector","result":[{"metric":{"x":"y"},"value":[1700,"1"]}]}}` +const matrixBody = `{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"x":"y"},"values":[[1700,"1"],[1760,"2"]]}]}}` + +// TestHandleEnricher_InstantWrapsResultInPrometheusBlock locks the +// prometheus_enricher response to the api-server caller's expected shape: +// findings[0].evidence[0].data is a JSON-encoded array containing one +// "prometheus" block whose `data` is a vector_result. +func TestHandleEnricher_InstantWrapsResultInPrometheusBlock(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{instant: map[string][]byte{"up": []byte(vectorBody)}}, + accountID: "acc-1", + } + resp, err := pe.HandleEnricher(context.Background(), map[string]any{ + "promql_query": "up", + "instant": true, + }) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + if r["success"] != true { + t.Fatalf("success = %v", r["success"]) + } + evidence := r["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + if err := json.Unmarshal([]byte(evidence["data"].(string)), &blocks); err != nil { + t.Fatal(err) + } + if len(blocks) != 1 || blocks[0]["type"] != "prometheus" { + t.Fatalf("expected one prometheus block, got %+v", blocks) + } + data := blocks[0]["data"].(map[string]any) + if data["result_type"] != "vector" { + t.Errorf("result_type = %v", data["result_type"]) + } +} + +// TestHandleQueriesEnricher_KeyedJSONBlock locks the prometheus_queries_enricher +// response: findings[0].evidence[0].data → array → json block whose `data` +// is a JSON-encoded `{key: PrometheusQueryResult}` map. This is what the +// backend's response extractor walks. +func TestHandleQueriesEnricher_KeyedJSONBlock(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{rng: map[string][]byte{ + "up": []byte(matrixBody), + "errors": []byte(matrixBody), + }}, + accountID: "acc-1", + } + resp, err := pe.HandleQueriesEnricher(context.Background(), map[string]any{ + "promql_queries": []any{ + map[string]any{"key": "A", "query": "up"}, + map[string]any{"key": "B", "query": "errors"}, + }, + "duration": map[string]any{"duration_minutes": 5}, + }) + if err != nil { + t.Fatal(err) + } + evidence := resp.(map[string]any)["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + if err := json.Unmarshal([]byte(evidence["data"].(string)), &blocks); err != nil { + t.Fatal(err) + } + if blocks[0]["type"] != "json" { + t.Fatalf("expected json block, got %+v", blocks[0]) + } + var inner map[string]map[string]any + if err := json.Unmarshal([]byte(blocks[0]["data"].(string)), &inner); err != nil { + t.Fatalf("inner JSON: %v", err) + } + if _, ok := inner["A"]; !ok { + t.Errorf("A missing: %+v", inner) + } + if _, ok := inner["B"]; !ok { + t.Errorf("B missing: %+v", inner) + } +} + +// TestHandleQueriesEnricher_InstantReturnsBareResultArray locks the legacy +// Python contract for instant queries: each key's value is the raw +// Prometheus `data.result` array ([{metric, value:[ts,"val"]}, ...]), +// not the PrometheusQueryResult envelope. Backend pod-metric enrichers +// and the relay's /prometheus proxy both walk this shape directly; +// handing them the envelope silently yields empty results and fabricates +// false "missing resource request" insights. +func TestHandleQueriesEnricher_InstantReturnsBareResultArray(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{instant: map[string][]byte{ + "kube_pod_container_resource_requests": []byte( + `{"status":"success","data":{"resultType":"vector","result":[` + + `{"metric":{"container":"app","resource":"memory"},"value":[1700,"209715200"]},` + + `{"metric":{"container":"app","resource":"cpu"},"value":[1700,"0.237"]}` + + `]}}`), + }}, + accountID: "acc-1", + } + resp, err := pe.HandleQueriesEnricher(context.Background(), map[string]any{ + "promql_queries": []any{ + map[string]any{"key": "requests", "query": "kube_pod_container_resource_requests"}, + }, + "instant": true, + "duration": map[string]any{"duration_minutes": 5}, + }) + if err != nil { + t.Fatal(err) + } + evidence := resp.(map[string]any)["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + if err := json.Unmarshal([]byte(evidence["data"].(string)), &blocks); err != nil { + t.Fatal(err) + } + var inner map[string]json.RawMessage + if err := json.Unmarshal([]byte(blocks[0]["data"].(string)), &inner); err != nil { + t.Fatalf("inner JSON: %v", err) + } + var items []map[string]any + if err := json.Unmarshal(inner["requests"], &items); err != nil { + t.Fatalf("requests is not a bare result array: %v\nbody: %s", err, inner["requests"]) + } + if len(items) != 2 { + t.Fatalf("got %d items; want 2", len(items)) + } + val, ok := items[0]["value"].([]any) + if !ok { + t.Fatalf("value is not a 2-element array (envelope leaked through): %T %v", items[0]["value"], items[0]["value"]) + } + if len(val) != 2 || val[1] != "209715200" { + t.Errorf("value = %v; want [ts, \"209715200\"]", val) + } +} + +// TestHandleQueriesEnricher_InstantErrorReturnsEnvelope locks the legacy +// error path: when the Prometheus call fails for an instant query, the +// key's value is the PrometheusQueryResult error envelope +// ({result_type:"error", string_result:"..."}), not a partial array — so +// callers that check result_type can distinguish "Prom unreachable" from +// "no series matched". +func TestHandleQueriesEnricher_InstantErrorReturnsEnvelope(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{instant: map[string][]byte{ + "up": []byte(`{"status":"error","errorType":"bad_data","error":"connection refused"}`), + }}, + accountID: "acc-1", + } + resp, err := pe.HandleQueriesEnricher(context.Background(), map[string]any{ + "promql_queries": []any{map[string]any{"key": "A", "query": "up"}}, + "instant": true, + "duration": map[string]any{"duration_minutes": 5}, + }) + if err != nil { + t.Fatal(err) + } + evidence := resp.(map[string]any)["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + _ = json.Unmarshal([]byte(evidence["data"].(string)), &blocks) + var inner map[string]map[string]any + if err := json.Unmarshal([]byte(blocks[0]["data"].(string)), &inner); err != nil { + t.Fatalf("inner JSON: %v\nbody: %s", err, blocks[0]["data"]) + } + got := inner["A"] + if got["result_type"] != "error" { + t.Errorf("result_type = %v; want error", got["result_type"]) + } + if !contains(got["string_result"].(string), "connection refused") { + t.Errorf("string_result = %q; want wrapped 'connection refused'", got["string_result"]) + } +} + +// TestHandleEnricher_RoutesToQueriesWhenMultiQuery covers the +// "promql_queries set → delegate" path in prometheus_enricher. +func TestHandleEnricher_RoutesToQueriesWhenMultiQuery(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{rng: map[string][]byte{ + "only-this": []byte(matrixBody), + }}, + accountID: "acc-1", + } + resp, err := pe.HandleEnricher(context.Background(), map[string]any{ + "promql_queries": []any{ + map[string]any{"key": "Z", "query": "only-this"}, + }, + "duration": map[string]any{"duration_minutes": 5}, + }) + if err != nil { + t.Fatal(err) + } + evidence := resp.(map[string]any)["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + _ = json.Unmarshal([]byte(evidence["data"].(string)), &blocks) + if blocks[0]["type"] != "json" { + t.Errorf("expected json block (queries route), got %v", blocks[0]["type"]) + } +} + +// TestHandleEnricher_MissingQueryReturnsErrorShape covers the validation +// guard for a missing required query. +func TestHandleEnricher_MissingQueryReturnsErrorShape(t *testing.T) { + pe := &PrometheusEnricher{q: &fakeProm{}, accountID: "acc-1"} + resp, _ := pe.HandleEnricher(context.Background(), map[string]any{}) + r := resp.(map[string]any) + if r["success"] != false { + t.Errorf("expected success=false, got %+v", r) + } + if r["error_code"] != 400 { + t.Errorf("error_code = %v; want 400", r["error_code"]) + } +} + +// ---------- prometheus_labels ---------- + +// TestHandleLabels_WrapsLabelValuesInResultTypeJsonBlock locks the response +// shape api-server's parseRelayData → decodeInnerData chain expects +// (services/observability/prometheus.go:243-321): a Finding whose first +// evidence block is `type: json` carrying `{result_type, data, error}`. +func TestHandleLabels_WrapsLabelValuesInResultTypeJsonBlock(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{labels: map[string][]byte{ + "__name__": []byte(`{"status":"success","data":["up","node_load1","apiserver_request_total"]}`), + }}, + accountID: "acc-1", + } + resp, err := pe.HandleLabels(context.Background(), map[string]any{"label_name": "__name__"}) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + if r["success"] != true { + t.Fatalf("success = %v; want true", r["success"]) + } + evidence := r["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + if err := json.Unmarshal([]byte(evidence["data"].(string)), &blocks); err != nil { + t.Fatal(err) + } + if len(blocks) != 1 || blocks[0]["type"] != "json" { + t.Fatalf("evidence blocks = %#v; want one json block", blocks) + } + // blocks[0].data is itself a JSON string (the JsonBlock pattern). + // Unwrap and assert the payload. + var payload struct { + ResultType string `json:"result_type"` + Data []string `json:"data"` + Error string `json:"error"` + } + if err := json.Unmarshal([]byte(blocks[0]["data"].(string)), &payload); err != nil { + t.Fatalf("inner data not JSON: %v\n%s", err, blocks[0]["data"]) + } + if payload.ResultType != "success" { + t.Errorf("result_type = %q; want success", payload.ResultType) + } + want := []string{"up", "node_load1", "apiserver_request_total"} + if len(payload.Data) != len(want) { + t.Fatalf("data = %v; want %v", payload.Data, want) + } + for i, v := range want { + if payload.Data[i] != v { + t.Errorf("data[%d] = %q; want %q", i, payload.Data[i], v) + } + } + if payload.Error != "" { + t.Errorf("error = %q; want empty", payload.Error) + } +} + +// TestHandleLabels_MissingLabelNameReturnsErrorJsonBlock — +// PrometheusLabelsValueParams requires `label_name`. The shape on the +// except-branch is success at the dispatch level, error at the inner +// JsonBlock level. +func TestHandleLabels_MissingLabelNameReturnsErrorJsonBlock(t *testing.T) { + pe := &PrometheusEnricher{q: &fakeProm{}, accountID: "acc-1"} + resp, err := pe.HandleLabels(context.Background(), map[string]any{}) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + if r["success"] != true { + t.Fatalf("dispatch-level success = %v; want true (error is per-block)", r["success"]) + } + evidence := r["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + _ = json.Unmarshal([]byte(evidence["data"].(string)), &blocks) + var payload struct { + ResultType string `json:"result_type"` + Error string `json:"error"` + } + _ = json.Unmarshal([]byte(blocks[0]["data"].(string)), &payload) + if payload.ResultType != "error" { + t.Errorf("result_type = %q; want error", payload.ResultType) + } + if payload.Error == "" { + t.Error("error message should describe the missing label_name") + } +} + +// TestHandleLabels_PrometheusErrorPropagatesToBlockError — when +// prom.LabelValues fails (network, 5xx, …) the dispatch still returns a +// Finding so the api-server caller's parseRelayData chain doesn't blow up, +// but the inner block carries result_type=error with the wrapped message. +func TestHandleLabels_PrometheusErrorPropagatesToBlockError(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{labelsErr: errors.New("prometheus 500: connection refused")}, + accountID: "acc-1", + } + resp, _ := pe.HandleLabels(context.Background(), map[string]any{"label_name": "namespace"}) + evidence := resp.(map[string]any)["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + _ = json.Unmarshal([]byte(evidence["data"].(string)), &blocks) + var payload struct { + ResultType string `json:"result_type"` + Data []string `json:"data"` + Error string `json:"error"` + } + _ = json.Unmarshal([]byte(blocks[0]["data"].(string)), &payload) + if payload.ResultType != "error" { + t.Errorf("result_type = %q; want error", payload.ResultType) + } + if !contains(payload.Error, "connection refused") { + t.Errorf("error = %q; want wrapped 'connection refused'", payload.Error) + } + if len(payload.Data) != 0 { + t.Errorf("data = %v; want empty on error", payload.Data) + } +} + +// TestHandleLabels_NonSuccessPrometheusStatusBecomesBlockError covers the +// case where Prometheus returns 200 with body {"status":"error","error":"..."}. +// extractPrometheusDataArray translates that into a wrapped error. +func TestHandleLabels_NonSuccessPrometheusStatusBecomesBlockError(t *testing.T) { + pe := &PrometheusEnricher{ + q: &fakeProm{labels: map[string][]byte{ + "namespace": []byte(`{"status":"error","errorType":"bad_data","error":"invalid match[]"}`), + }}, + accountID: "acc-1", + } + resp, _ := pe.HandleLabels(context.Background(), map[string]any{"label_name": "namespace"}) + evidence := resp.(map[string]any)["findings"].([]any)[0].(map[string]any)["evidence"].([]any)[0].(map[string]any) + var blocks []map[string]any + _ = json.Unmarshal([]byte(evidence["data"].(string)), &blocks) + var payload struct { + ResultType string `json:"result_type"` + Error string `json:"error"` + } + _ = json.Unmarshal([]byte(blocks[0]["data"].(string)), &payload) + if payload.ResultType != "error" { + t.Errorf("result_type = %q; want error for non-success Prometheus status", payload.ResultType) + } + if !contains(payload.Error, "invalid match[]") { + t.Errorf("error = %q; want Prometheus error preserved", payload.Error) + } +} + +func TestExtractPrometheusDataArray_NullDataIsEmpty(t *testing.T) { + // Prometheus emits {"status":"success","data":null} for label values + // with zero matches. get_label_values returns []; we must too. + got, err := extractPrometheusDataArray([]byte(`{"status":"success","data":null}`)) + if err != nil { + t.Fatalf("extract null data: %v", err) + } + if got == nil || len(got) != 0 { + t.Errorf("got %v; want empty []any", got) + } +} + +func TestParamStringSlice(t *testing.T) { + cases := []struct { + in any + want []string + }{ + {nil, nil}, + {`x`, []string{"x"}}, + {[]string{"a", "b"}, []string{"a", "b"}}, + {[]any{"a", "b"}, []string{"a", "b"}}, + {[]any{"a", 42}, []string{"a"}}, + {42, nil}, + } + for _, c := range cases { + got := paramStringSlice(map[string]any{"k": c.in}, "k") + if len(got) != len(c.want) { + t.Errorf("paramStringSlice(%v) = %v; want %v", c.in, got, c.want) + continue + } + for i := range got { + if got[i] != c.want[i] { + t.Errorf("paramStringSlice(%v)[%d] = %q; want %q", c.in, i, got[i], c.want[i]) + } + } + } +} diff --git a/runner/pkg/enrichers/query_data.go b/runner/pkg/enrichers/query_data.go new file mode 100644 index 0000000..5330554 --- /dev/null +++ b/runner/pkg/enrichers/query_data.go @@ -0,0 +1,46 @@ +package enrichers + +import ( + "context" + + "github.com/nudgebee/nudgebee-agent/pkg/clickhouse" + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// QueryData implements the `query_data` action — runs a ClickHouse SQL +// query and returns `{data, columns, column_types, error}`. +// +// Callers read `response.data.data` (rows), `response.data.columns`, etc. +// +// Example response: +// +// { +// "success": true, +// "data": {"data": [[1]], "columns":["count"], "column_types":["UInt64"], "error": null}, +// "request_id": "..." +// } +func QueryData(ch *clickhouse.Client) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + query, _ := params["query"].(string) + // The action accepts a `values` list for parameterized queries; api-server + // callers never send it. We pass through whatever is provided so the + // ClickHouse client can reject with a clear error if non-empty. + var values []any + if raw, ok := params["values"].([]any); ok { + values = raw + } + result, err := ch.Query(ctx, query, values) + if err != nil { + // Hard error path (unexpected). Log and return success:false. + return map[string]any{ + "success": false, + "data": nil, + "msg": err.Error(), + }, nil + } + return map[string]any{ + "success": true, + "data": result, + }, nil + } +} diff --git a/runner/pkg/enrichers/slo.go b/runner/pkg/enrichers/slo.go new file mode 100644 index 0000000..46faaed --- /dev/null +++ b/runner/pkg/enrichers/slo.go @@ -0,0 +1,353 @@ +package enrichers + +import ( + "context" + "fmt" + "math" + "os" + "strconv" + "strings" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// SLOEnricher implements `slo_generator` — runs the SLO config's underlying +// queries against Prometheus, computes good/bad event counts per workload, +// derives SLI / error budget / burn rate, and emits a list of SLOReport +// dicts. +// +// Wire shape: +// +// { +// "success": true, +// "data": [] +// } +// +// Caller deserializes each dict into an SLOReport struct on the backend. +type SLOEnricher struct { + q PromQuerier +} + +// NewSLOEnricher returns an SLO generator wired to the given Prometheus client. +func NewSLOEnricher(c *prometheus.Client) *SLOEnricher { + return &SLOEnricher{q: promClientAdapter{c: c}} +} + +// Handler returns a dispatch.Handler for slo_generator. +func (s *SLOEnricher) Handler() dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + reports, err := s.compute(ctx, params) + if err != nil { + return map[string]any{ + "success": false, + "data": []any{}, + "msg": err.Error(), + }, nil + } + return map[string]any{ + "success": true, + "data": reports, + }, nil + } +} + +// sloConfig is the SLOConfig dataclass mirror. All fields read from the +// action_params.slo_config map. +type sloConfig struct { + Name string `json:"name"` + Goal float64 `json:"goal"` + Method string `json:"method"` + GroupBy string `json:"group_by"` + Expression string `json:"expression"` + FilterGood string `json:"filter_good"` + FilterBad string `json:"filter_bad"` + FilterValid string `json:"filter_valid"` + ErrorBudgetBurnRateThreshold float64 `json:"error_budget_burn_rate_threshold"` + Window int `json:"window"` + ThresholdBucket float64 `json:"threshold_bucket"` +} + +func (s *SLOEnricher) compute(ctx context.Context, params map[string]any) ([]map[string]any, error) { + rawCfg, _ := params["slo_config"].(map[string]any) + if len(rawCfg) == 0 { + return nil, fmt.Errorf("slo_generator: slo_config is required") + } + cfg := parseSLOConfig(rawCfg) + if cfg.Window <= 0 { + cfg.Window = 3600 + } + if cfg.GroupBy == "" || strings.Contains(cfg.GroupBy, "actual_destination_workload_name") { + cfg.GroupBy = "destination_workload_name, destination_workload_namespace" + } + if cfg.ErrorBudgetBurnRateThreshold == 0 { + cfg.ErrorBudgetBurnRateThreshold = 14.4 + } + + endTime := time.Now().UTC() + startTime := endTime.Add(-time.Duration(cfg.Window) * time.Second) + + queries, err := buildSLOQueries(cfg) + if err != nil { + return nil, err + } + step := int64(cfg.Window) // SLO uses window as step (one bucket). + + // Reuse the application_stats Prometheus runner so the parsing path is + // identical to get_application_stats. + a := &AppStatsEnricher{q: s.q} + results := a.runQueries(ctx, queries, startTime, endTime, step, "", "", "") + apps := extractMetricStats(results) + + minValidEvents := envIntDefault("MIN_VALID_EVENTS", 1) + reports := make([]map[string]any, 0, len(apps)) + for _, app := range apps { + stats := app.toResponse() + report := buildSLOReport(cfg, stats, startTime, endTime, minValidEvents) + reports = append(reports, report) + } + return reports, nil +} + +// parseSLOConfig accepts the JSON-decoded action_params.slo_config map. +func parseSLOConfig(m map[string]any) sloConfig { + out := sloConfig{} + out.Name, _ = m["name"].(string) + out.Goal = toFloat(m["goal"]) + out.Method, _ = m["method"].(string) + out.GroupBy, _ = m["group_by"].(string) + out.Expression, _ = m["expression"].(string) + out.FilterGood, _ = m["filter_good"].(string) + out.FilterBad, _ = m["filter_bad"].(string) + out.FilterValid, _ = m["filter_valid"].(string) + out.ErrorBudgetBurnRateThreshold = toFloat(m["error_budget_burn_rate_threshold"]) + if v, err := toInt(m["window"]); err == nil { + out.Window = v + } + out.ThresholdBucket = toFloat(m["threshold_bucket"]) + return out +} + +// buildSLOQueries assembles the per-method query map. Methods supported: +// +// good_bad_ratio — needs filter_good + (filter_bad OR filter_valid) +// distribution_cut — needs expression + threshold_bucket +// +// Ports the backend verbatim, including the _bucket→_count rewrite +// and the `le=~"(\\.0+)?"` regex match. +func buildSLOQueries(cfg sloConfig) (map[string]string, error) { + groupOp := fmt.Sprintf("sum by (%s)", cfg.GroupBy) + switch cfg.Method { + case "good_bad_ratio": + if cfg.FilterGood == "" { + return nil, fmt.Errorf("slo_generator: good_bad_ratio requires filter_good") + } + queries := map[string]string{ + "filter_good": fmtSLOQuery(cfg.FilterGood, cfg.Window, []string{"increase", groupOp}, nil), + } + switch { + case cfg.FilterBad != "": + queries["filter_bad"] = fmtSLOQuery(cfg.FilterBad, cfg.Window, []string{"increase", groupOp}, nil) + case cfg.FilterValid != "": + queries["filter_valid"] = fmtSLOQuery(cfg.FilterValid, cfg.Window, []string{"increase", groupOp}, nil) + default: + return nil, fmt.Errorf("slo_generator: good_bad_ratio requires filter_bad or filter_valid") + } + return queries, nil + case "distribution_cut": + if cfg.Expression == "" || cfg.ThresholdBucket == 0 { + return nil, fmt.Errorf("slo_generator: distribution_cut requires expression and threshold_bucket") + } + bucket := strconv.FormatFloat(cfg.ThresholdBucket, 'f', -1, 64) + queries := map[string]string{ + "filter_good": fmtSLOQuery(cfg.Expression, cfg.Window, []string{"increase", groupOp}, map[string]string{"le": bucket}), + } + exprCount := strings.ReplaceAll(cfg.Expression, "_bucket", "_count") + queries["filter_valid"] = fmtSLOQuery(exprCount, cfg.Window, []string{"increase", groupOp}, nil) + return queries, nil + } + return nil, fmt.Errorf("slo_generator: unknown method %q", cfg.Method) +} + +// fmtSLOQuery is the line-for-line port of SLOGenerator._fmt_query +// . Replaces `[window` if present, otherwise appends +// `[s]`; wraps with each operator; for `le` labels uses the regex +// match needed to handle `0.5` vs `0.500` etc. +func fmtSLOQuery(query string, window int, operators []string, labels map[string]string) string { + q := strings.TrimSpace(query) + if strings.Contains(q, "[window") { + q = strings.ReplaceAll(q, "[window", fmt.Sprintf("[%ds", window)) + } else { + q += fmt.Sprintf("[%ds]", window) + } + for _, op := range operators { + q = fmt.Sprintf("%s(%s)", op, q) + } + for k, v := range labels { + if k == "le" { + // Escape: ', le=~"^(\\.0+)?$"}' — note the doubled + // backslash in the Python source becomes a single \ on the wire. + q = strings.Replace(q, "}", fmt.Sprintf(`, %s=~"^%s(\.0+)?$"}`, k, v), 1) + } else { + q = strings.Replace(q, "}", fmt.Sprintf(`, %s="%s"}`, k, v), 1) + } + } + return q +} + +// buildSLOReport mirrors SLOReport.build plus the +// validate() pre-check. +func buildSLOReport(cfg sloConfig, stats map[string]any, startTime, endTime time.Time, minValidEvents int) map[string]any { + const noData = -1 + report := map[string]any{ + "workload": stringFromMap(stats, "name"), + "namespace": stringFromMap(stats, "namespace"), + "name": cfg.Name, + "goal": cfg.Goal, + "window": cfg.Window, + "start_time": float64(startTime.Unix()), + "end_time": float64(endTime.Unix()), + "valid": true, + "alert": false, + "sli_measurement": 0.0, + "events_count": 0, + "good_events_count": 0, + "bad_events_count": 0, + "alert_message": "", + "error_budget_burn_rate_threshold": cfg.ErrorBudgetBurnRateThreshold, + } + + good := numFromMap(stats, "good_data_count", noData) + bad := numFromMap(stats, "bad_data_count", noData) + valid := numFromMap(stats, "valid_data_count", noData) + + // Validate: bad/good/valid must have enough events. If both are NO_DATA we + // treat as invalid. + if good == float64(noData) || math.IsNaN(good) { + good = 0 + } + if bad == float64(noData) || math.IsNaN(bad) { + bad = 0 + } + if good == 0 && bad == 0 && valid == float64(noData) { + report["valid"] = false + return report + } + if good+bad < float64(minValidEvents) && valid == float64(noData) { + report["valid"] = false + return report + } + + // SLI: good/(good+bad) for tuple-form, or valid_data_count directly when + // the SLO config supplies a precomputed SLI value (the ratio is already + // in the metric). + var sli float64 + if good+bad > 0 { + sli = round6(good / (good + bad)) + } else if valid != float64(noData) { + sli = round6(valid) + } + + gap := sli - cfg.Goal + ebTarget := 1 - cfg.Goal + ebValue := 1 - sli + ebRemainingMinutes := float64(cfg.Window) * gap / 60 + ebTargetMinutes := float64(cfg.Window) * ebTarget / 60 + ebMinutes := float64(cfg.Window) * ebValue / 60 + var ebRatio, ebBurnRate float64 + if ebTarget > 0 { + ebRatio = ebValue * 100 / ebTarget + ebBurnRate = math.Round(ebValue/ebTarget*10) / 10 // round(x, 1) + } + hours := int(ebBurnRate / (60 * 60)) + hourLabel := "hours" + if hours == 1 { + hourLabel = "hour" + } + alertMessage := fmt.Sprintf("error budget burn rate is %.1fx within %d %s", ebBurnRate, hours, hourLabel) + alert := false + if cfg.ErrorBudgetBurnRateThreshold > 0 { + alert = ebBurnRate > cfg.ErrorBudgetBurnRateThreshold + } + + report["gap"] = gap + report["error_budget_target"] = ebTarget + report["error_budget_measurement"] = ebValue + report["error_budget_burn_rate"] = ebBurnRate + report["error_budget_remaining_minutes"] = ebRemainingMinutes + report["error_budget_minutes"] = ebTargetMinutes + report["error_minutes"] = ebMinutes + report["error_budget_consumed_ratio"] = ebRatio + report["sli_measurement"] = sli + report["events_count"] = int(good + bad) + report["good_events_count"] = int(good) + report["bad_events_count"] = int(bad) + report["alert_message"] = alertMessage + report["alert"] = alert + + if sli < 0 || sli > 1 { + // _post_validate: SLI must be in [0,1]. + report["valid"] = false + } + return report +} + +func stringFromMap(m map[string]any, key string) string { + s, _ := m[key].(string) + return s +} + +func numFromMap(m map[string]any, key string, def float64) float64 { + v, ok := m[key] + if !ok { + return def + } + switch x := v.(type) { + case float64: + return x + case int: + return float64(x) + case int64: + return float64(x) + case string: + f, err := strconv.ParseFloat(x, 64) + if err == nil { + return f + } + } + return def +} + +func toFloat(v any) float64 { + switch x := v.(type) { + case float64: + return x + case int: + return float64(x) + case int64: + return float64(x) + case string: + f, err := strconv.ParseFloat(x, 64) + if err == nil { + return f + } + } + return 0 +} + +func round6(v float64) float64 { + if math.IsNaN(v) || math.IsInf(v, 0) { + return v + } + return math.Round(v*1e6) / 1e6 +} + +func envIntDefault(name string, def int) int { + if v := os.Getenv(name); v != "" { + if n, err := strconv.Atoi(v); err == nil { + return n + } + } + return def +} diff --git a/runner/pkg/enrichers/slo_test.go b/runner/pkg/enrichers/slo_test.go new file mode 100644 index 0000000..94cb2b4 --- /dev/null +++ b/runner/pkg/enrichers/slo_test.go @@ -0,0 +1,116 @@ +package enrichers + +import ( + "context" + "strconv" + "testing" + "time" +) + +// TestSLOGenerator_GoodBadRatio runs slo_generator end-to-end against a fake +// Prometheus that returns one good event and one bad event for the same +// workload. The expected SLO calculation: +// +// sli = good / (good+bad) = 1/2 = 0.5 +// gap = sli - goal = 0.5 - 0.99 = -0.49 +// eb_target = 1 - 0.99 = 0.01 +// eb_value = 1 - 0.5 = 0.5 +// eb_burn_rate = round(eb_value / eb_target, 1) = 50.0 +// +// The shape is what the backend reads back via +// resp.data.data → list of SLOReport dicts. +func TestSLOGenerator_GoodBadRatio(t *testing.T) { + // Sample timestamp must land inside the [now-3600s, now] window so the + // TimeSeries grid actually picks it up. Using now-30s satisfies that + // regardless of when the test runs. + now := time.Now().UTC().Unix() + matrix := func(value string) []byte { + ts := strconv.FormatInt(now-30, 10) + return []byte(`{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"destination_workload_name":"web","destination_workload_namespace":"shop"},"values":[[` + ts + `,"` + value + `"]]}]}}`) + } + // anyMatchProm responds based on whether the query has the bad-status + // label so fmtSLOQuery's wrapper string stays opaque to the test. + s := &SLOEnricher{q: anyMatchProm{good: matrix("1"), bad: matrix("1")}} + + resp, err := s.Handler()(context.Background(), map[string]any{ + "slo_config": map[string]any{ + "name": "availability", + "goal": 0.99, + "method": "good_bad_ratio", + "filter_good": `container_http_requests_total{status="200"}`, + "filter_bad": `container_http_requests_total{status="500"}`, + "window": 3600, + }, + }) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + if r["success"] != true { + t.Fatalf("success = %v: %+v", r["success"], r) + } + reports := r["data"].([]map[string]any) + if len(reports) != 1 { + t.Fatalf("reports = %d; want 1: %+v", len(reports), reports) + } + rep := reports[0] + if rep["sli_measurement"] != 0.5 { + t.Errorf("sli_measurement = %v; want 0.5", rep["sli_measurement"]) + } + if rep["alert"] != true { + // burn_rate=50 is well above default threshold 14.4 + t.Errorf("alert = %v; want true (burn rate 50 > 14.4)", rep["alert"]) + } +} + +// anyMatchProm returns a fixed response for any query — distinguishing the +// "good" branch (the first one substituted into the filter_good map). +// We set the same body for both ranges since the test only cares about counts. +type anyMatchProm struct { + good []byte + bad []byte +} + +func (a anyMatchProm) Query(_ context.Context, _, _, _ string) ([]byte, error) { + return a.good, nil +} +func (a anyMatchProm) QueryRange(_ context.Context, q, _, _, _, _ string) ([]byte, error) { + if contains(q, "status=\"500\"") { + return a.bad, nil + } + return a.good, nil +} +func (a anyMatchProm) LabelValues(_ context.Context, _, _, _ string, _ []string) ([]byte, error) { + return []byte(`{"status":"success","data":[]}`), nil +} + +func contains(s, sub string) bool { + for i := 0; i+len(sub) <= len(s); i++ { + if s[i:i+len(sub)] == sub { + return true + } + } + return false +} + +func TestFmtSLOQuery_Defaults(t *testing.T) { + q := fmtSLOQuery(`up`, 60, []string{"increase", "sum by (workload)"}, nil) + want := `sum by (workload)(increase(up[60s]))` + if q != want { + t.Errorf("got %q; want %q", q, want) + } +} + +func TestFmtSLOQuery_LeRegex(t *testing.T) { + q := fmtSLOQuery(`http_buckets{job="x"}`, 60, []string{"increase"}, map[string]string{"le": "0.5"}) + if !contains(q, `le=~"^0.5(\.0+)?$"`) { + t.Errorf("le regex missing: %s", q) + } +} + +func TestBuildSLOQueries_DistributionCutRequiresExpression(t *testing.T) { + cfg := sloConfig{Method: "distribution_cut", Window: 60} + if _, err := buildSLOQueries(cfg); err == nil { + t.Error("expected error for missing expression+threshold_bucket") + } +} diff --git a/runner/pkg/enrichers/timeseries.go b/runner/pkg/enrichers/timeseries.go new file mode 100644 index 0000000..91af816 --- /dev/null +++ b/runner/pkg/enrichers/timeseries.go @@ -0,0 +1,122 @@ +package enrichers + +import ( + "math" +) + +// timeSeries is a fixed-step series of float64 samples backed by a NaN-filled +// slice. +// +// Use newTimeSeries with the start time and total point count; call set(t,v) +// to fill samples; reduce(f, init) walks the points and accumulates. +type timeSeries struct { + fromTime int64 + step int64 + data []float64 +} + +func newTimeSeries(fromTime int64, points int, step int64) *timeSeries { + if points < 0 { + points = 0 + } + d := make([]float64, points) + nan := math.NaN() + for i := range d { + d[i] = nan + } + return &timeSeries{fromTime: fromTime, step: step, data: d} +} + +// set writes value v at unix-time t. Out-of-range writes are ignored. +func (s *timeSeries) set(t int64, v float64) { + if s == nil || s.step == 0 || t < s.fromTime { + return + } + idx := int((t - s.fromTime) / s.step) + if idx < 0 || idx >= len(s.data) { + return + } + s.data[idx] = v +} + +func (s *timeSeries) last() float64 { + if s == nil || len(s.data) == 0 { + return math.NaN() + } + return s.data[len(s.data)-1] +} + +// reduce walks the points and returns the accumulated value. Pass nan-aware +// reducers (rMax, rNanSum, rMin) so NaN samples don't poison the result. +func (s *timeSeries) reduce(f func(acc, v float64) float64) float64 { + if s == nil { + return math.NaN() + } + acc := math.NaN() + for _, v := range s.data { + acc = f(acc, v) + } + return acc +} + +// merge applies f pairwise across two TimeSeries with matching grid (same +// fromTime + step + length). Our use case only ever has compatible grids +// so we skip resampling. +func mergeSeries(dest, ts *timeSeries, f func(acc, v float64) float64) *timeSeries { + switch { + case dest == nil && ts == nil: + return nil + case dest == nil: + return ts + case ts == nil: + return dest + } + n := len(dest.data) + if len(ts.data) < n { + n = len(ts.data) + } + for i := 0; i < n; i++ { + dest.data[i] = f(dest.data[i], ts.data[i]) + } + return dest +} + +// rMax / rNanSum / rMin / rLast mirror the backend's timeseries reducers. +// Each handles NaN cleanly: +// - max/min ignore NaN-then-real, real-then-NaN; NaN+NaN stays NaN +// - nan_sum treats NaN as 0 +func rMax(acc, v float64) float64 { + if math.IsNaN(acc) { + return v + } + if math.IsNaN(v) { + return acc + } + if v > acc { + return v + } + return acc +} + +func rMin(acc, v float64) float64 { + if math.IsNaN(acc) { + return v + } + if math.IsNaN(v) { + return acc + } + if v < acc { + return v + } + return acc +} + +func rNanSum(acc, v float64) float64 { + if math.IsNaN(acc) { + acc = 0 + } + if !math.IsNaN(v) { + acc += v + } + return acc +} diff --git a/runner/pkg/grafana/proxy.go b/runner/pkg/grafana/proxy.go new file mode 100644 index 0000000..bc4968c --- /dev/null +++ b/runner/pkg/grafana/proxy.go @@ -0,0 +1,226 @@ +// Package grafana implements the Grafana HTTP-proxy the relay calls to +// render dashboards and run datasource queries on behalf of the UI. +// +// Wire shape (relay → agent): +// +// { method, url, body, content_length, header } — GrafanaRequest +// +// Wire shape (agent → relay): +// +// { status_code, body, content_length, header } — GrafanaResponse +// +// Body is base64-encoded both directions; the relay decodes before +// forwarding to the UI (see relay-server/pkg/utils/utils.go:294). +// +// The X-NB-Request-Type header decides the route on the agent side: +// +// "Grafana" (default) — proxy to GRAFANA_URL +// "APIProxy" — proxy to the URL in X-API-Base-URL header +// "Prometheus" — proxy to PROMETHEUS_URL (collector-server's +// `/prometheus-v2/*` route forwards every Prometheus +// HTTP call this way; see relay-server/pkg/utils/utils.go:77) +package grafana + +import ( + "context" + "encoding/base64" + "fmt" + "io" + "net/http" + "strings" + "time" +) + +// Request is the inbound shape (from relay/UI). Mirrors GrafanaRequest +// . +type Request struct { + Method string `json:"method"` + URL string `json:"url"` + ContentLength int `json:"content_length,omitempty"` + Body string `json:"body,omitempty"` // base64 + Header map[string][]string `json:"header,omitempty"` +} + +// Response is the outbound shape. Mirrors GrafanaResponse. +type Response struct { + StatusCode int `json:"status_code"` + ContentLength int `json:"content_length,omitempty"` + Body string `json:"body"` // base64 + Header map[string][]string `json:"header,omitempty"` +} + +// Proxy serves Grafana/API-proxy requests. One Proxy per agent process. +type Proxy struct { + // GrafanaURL is the upstream Grafana base URL (e.g. + // http://kube-prometheus-stack-grafana.monitoring.svc:80). Set from + // GRAFANA_URL env. + GrafanaURL string + + // PrometheusURL is the upstream Prometheus base URL. The collector + // server's `/prometheus-v2/*` route forwards every HTTP call this + // way; without it the `Prometheus` request-type returns 503. + PrometheusURL string + + // PrometheusHeaders is the parsed PROMETHEUS_HEADERS env (raw + // "Header: value, Header: value" string) — applied to every + // Prometheus proxy request so X-Scope-OrgID / tenant headers reach + // the upstream. Same shape ExtraHeaders uses for Grafana. + PrometheusHeaders http.Header + + // Username/Password for Grafana basic auth (GRAFANA_USERNAME / + // GRAFANA_PASSWORD env). Empty disables. + Username string + Password string + + // ExtraHeaders is the GRAFANA_EXTRA_HEADER env in semicolon-separated + // "Header: value" form. Allows X-Scope-OrgID etc. Each header is sent + // on every proxied request. + ExtraHeaders []string + + HTTP *http.Client +} + +// New returns a Proxy ready for HandleGrafana / HandleAPI / HandlePrometheus +// calls. promURL + promHeaders unlock the Prometheus request-type path; +// leave them empty (or nil) when Prometheus isn't configured on this +// agent — HandlePrometheus then returns 503. +func New(grafanaURL, user, pass string, extra []string, promURL string, promHeaders http.Header, c *http.Client) *Proxy { + if c == nil { + c = &http.Client{Timeout: 60 * time.Second} + } + return &Proxy{ + GrafanaURL: strings.TrimRight(grafanaURL, "/"), + PrometheusURL: strings.TrimRight(promURL, "/"), + PrometheusHeaders: promHeaders, + Username: user, + Password: pass, + ExtraHeaders: extra, + HTTP: c, + } +} + +// HandleGrafana proxies a request to GRAFANA_URL. Returns the upstream +// response with body base64-encoded. Empty GrafanaURL → 503. +func (p *Proxy) HandleGrafana(ctx context.Context, req *Request) *Response { + if p.GrafanaURL == "" { + return errResp(503, "Grafana not configured (GRAFANA_URL unset)") + } + return p.do(ctx, p.GrafanaURL+req.URL, req) +} + +// HandleAPI proxies a request to a caller-supplied base URL. The relay +// extracts the URL from the X-API-Base-URL header +// . Returns 400 if the base URL is empty. +func (p *Proxy) HandleAPI(ctx context.Context, baseURL string, req *Request) *Response { + if baseURL == "" { + return errResp(400, "Missing X-API-Base-URL header") + } + return p.do(ctx, strings.TrimRight(baseURL, "/")+req.URL, req) +} + +// HandlePrometheus proxies a request to the configured PROMETHEUS_URL. +// The collector-server's `/prometheus-v2/*` route serializes every +// inbound HTTP call this way (relay-server/pkg/utils/utils.go:61-87), +// so this path covers `/api/v1/labels`, `/api/v1/query`, `/api/v1/series`, +// etc. — anything Grafana / api-server hits against Prometheus. +// +// Returns 503 when PROMETHEUS_URL is unset; same posture as +// HandleGrafana's "Grafana not configured" branch. PROMETHEUS_HEADERS +// (X-Scope-OrgID etc.) are merged onto the incoming request so tenanted +// Prometheus deployments work without the caller having to know them. +func (p *Proxy) HandlePrometheus(ctx context.Context, req *Request) *Response { + if p.PrometheusURL == "" { + return errResp(503, "Prometheus not configured (PROMETHEUS_URL unset)") + } + enriched := *req + enriched.Header = mergeHeaders(req.Header, p.PrometheusHeaders) + return p.do(ctx, p.PrometheusURL+req.URL, &enriched) +} + +// mergeHeaders returns a new header map containing every entry from +// base, with every entry from extras appended (Add, not Set, so +// callers can carry their own X-Scope-OrgID while the agent's +// configured PROMETHEUS_HEADERS pile on too). Nil-safe in both args. +func mergeHeaders(base, extras http.Header) map[string][]string { + out := make(map[string][]string, len(base)+len(extras)) + for k, vs := range base { + out[k] = append([]string(nil), vs...) + } + for k, vs := range extras { + out[k] = append(out[k], vs...) + } + return out +} + +func (p *Proxy) do(ctx context.Context, fullURL string, req *Request) *Response { + method := req.Method + if method == "" { + method = http.MethodGet + } + + var body io.Reader + if req.Body != "" { + decoded, err := base64.StdEncoding.DecodeString(req.Body) + if err != nil { + return errResp(400, "Invalid base64 body: "+err.Error()) + } + body = strings.NewReader(string(decoded)) + } + + httpReq, err := http.NewRequestWithContext(ctx, method, fullURL, body) + if err != nil { + return errResp(400, "Build request: "+err.Error()) + } + + // Auth + extra headers. + if p.Username != "" && p.Password != "" { + httpReq.SetBasicAuth(p.Username, p.Password) + } + for _, h := range p.ExtraHeaders { + i := strings.IndexByte(h, ':') + if i <= 0 { + continue + } + httpReq.Header.Set(strings.TrimSpace(h[:i]), strings.TrimSpace(h[i+1:])) + } + // Forward incoming request headers — except cookies (intentionally dropped). + for k, vs := range req.Header { + if strings.EqualFold(k, "Cookie") { + continue + } + for _, v := range vs { + httpReq.Header.Add(k, v) + } + } + if req.ContentLength > 0 { + httpReq.ContentLength = int64(req.ContentLength) + httpReq.Header.Set("Content-Length", fmt.Sprintf("%d", req.ContentLength)) + } + + resp, err := p.HTTP.Do(httpReq) + if err != nil { + return errResp(502, "Upstream error: "+err.Error()) + } + defer func() { _ = resp.Body.Close() }() + + rawBody, err := io.ReadAll(resp.Body) + if err != nil { + return errResp(502, "Read upstream body: "+err.Error()) + } + + return &Response{ + StatusCode: resp.StatusCode, + ContentLength: len(rawBody), + Body: base64.StdEncoding.EncodeToString(rawBody), + Header: resp.Header, + } +} + +func errResp(status int, msg string) *Response { + return &Response{ + StatusCode: status, + Body: base64.StdEncoding.EncodeToString([]byte(msg)), + ContentLength: len(msg), + Header: map[string][]string{"Content-Type": {"text/plain"}}, + } +} diff --git a/runner/pkg/grafana/proxy_test.go b/runner/pkg/grafana/proxy_test.go new file mode 100644 index 0000000..c4143f8 --- /dev/null +++ b/runner/pkg/grafana/proxy_test.go @@ -0,0 +1,263 @@ +package grafana + +import ( + "context" + "encoding/base64" + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" +) + +// TestProxy_HandleGrafana verifies the request reaches the upstream URL +// with auth + extra headers attached, and the body comes back base64. +func TestProxy_HandleGrafana(t *testing.T) { + var gotPath, gotAuth, gotOrgID string + var gotBody []byte + upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + gotPath = r.URL.Path + gotAuth = r.Header.Get("Authorization") + gotOrgID = r.Header.Get("X-Scope-OrgID") + gotBody, _ = io.ReadAll(r.Body) + w.Header().Set("Content-Type", "application/json") + _, _ = w.Write([]byte(`{"datasources":[]}`)) + })) + defer upstream.Close() + + p := New(upstream.URL, "admin", "secret", []string{"X-Scope-OrgID: tenant-1"}, "", nil, nil) + + rawBody := `{"q":"up"}` + resp := p.HandleGrafana(context.Background(), &Request{ + Method: "POST", + URL: "/api/datasources", + Body: base64.StdEncoding.EncodeToString([]byte(rawBody)), + ContentLength: len(rawBody), + Header: map[string][]string{"Cookie": {"sess=1"}, "X-Custom": {"v"}}, + }) + + if gotPath != "/api/datasources" { + t.Errorf("upstream path = %q; want /api/datasources", gotPath) + } + if gotOrgID != "tenant-1" { + t.Errorf("X-Scope-OrgID forwarded = %q; want tenant-1", gotOrgID) + } + if !strings.HasPrefix(gotAuth, "Basic ") { + t.Errorf("Authorization = %q; want Basic <…>", gotAuth) + } + if string(gotBody) != rawBody { + t.Errorf("upstream body = %q; want %q", gotBody, rawBody) + } + if resp.StatusCode != 200 { + t.Errorf("status = %d; want 200", resp.StatusCode) + } + decoded, err := base64.StdEncoding.DecodeString(resp.Body) + if err != nil { + t.Fatalf("response body not base64: %v", err) + } + if string(decoded) != `{"datasources":[]}` { + t.Errorf("decoded body = %q", decoded) + } +} + +// TestProxy_DropsCookie mirrors the backend — incoming cookie +// headers must NOT be forwarded to upstream. +func TestProxy_DropsCookie(t *testing.T) { + var sawCookie bool + upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.Header.Get("Cookie") != "" { + sawCookie = true + } + w.WriteHeader(204) + })) + defer upstream.Close() + + p := New(upstream.URL, "", "", nil, "", nil, nil) + _ = p.HandleGrafana(context.Background(), &Request{ + Method: "GET", URL: "/x", + Header: map[string][]string{"Cookie": {"sess=1"}}, + }) + if sawCookie { + t.Error("upstream received Cookie header; should have been dropped") + } +} + +// TestProxy_HandleAPI uses a different base URL than GrafanaURL — proves +// the X-API-Base-URL header pattern is honoured. +func TestProxy_HandleAPI(t *testing.T) { + var hit string + upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + hit = r.URL.Path + w.WriteHeader(200) + })) + defer upstream.Close() + + // Empty GrafanaURL — confirms APIProxy doesn't depend on it. + p := New("", "", "", nil, "", nil, nil) + resp := p.HandleAPI(context.Background(), upstream.URL, &Request{ + Method: "GET", URL: "/v2/things", + }) + if hit != "/v2/things" { + t.Errorf("upstream hit = %q; want /v2/things", hit) + } + if resp.StatusCode != 200 { + t.Errorf("status = %d; want 200", resp.StatusCode) + } +} + +// TestProxy_UnconfiguredGrafana — calling HandleGrafana with no GrafanaURL +// returns 503 with the configuration-hint body, not a panic. +func TestProxy_UnconfiguredGrafana(t *testing.T) { + p := New("", "", "", nil, "", nil, nil) + resp := p.HandleGrafana(context.Background(), &Request{Method: "GET", URL: "/x"}) + if resp.StatusCode != 503 { + t.Errorf("status = %d; want 503", resp.StatusCode) + } +} + +// TestProxy_MissingAPIBase — APIProxy with empty base returns 400 not panic. +func TestProxy_MissingAPIBase(t *testing.T) { + p := New("", "", "", nil, "", nil, nil) + resp := p.HandleAPI(context.Background(), "", &Request{Method: "GET", URL: "/x"}) + if resp.StatusCode != 400 { + t.Errorf("status = %d; want 400", resp.StatusCode) + } +} + +// TestProxy_HandlePrometheus_ForwardsToPrometheusURL covers the +// production hot-path: collector's `/prometheus-v2/api/v1/labels?...` +// arrives at the agent as a GrafanaRequest with type=Prometheus, body +// pre-base64-encoded by the relay. The proxy must hit the configured +// PROMETHEUS_URL with the verb + path + body preserved. +func TestProxy_HandlePrometheus_ForwardsToPrometheusURL(t *testing.T) { + var ( + gotPath string + gotQuery string + gotOrg string + ) + upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + gotPath = r.URL.Path + gotQuery = r.URL.RawQuery + gotOrg = r.Header.Get("X-Scope-OrgID") + w.Header().Set("Content-Type", "application/json") + _, _ = w.Write([]byte(`{"status":"success","data":["job","instance"]}`)) + })) + defer upstream.Close() + + // PROMETHEUS_HEADERS configured at agent startup — must reach upstream. + promHeaders := http.Header{"X-Scope-OrgID": {"tenant-9"}} + p := New("", "", "", nil, upstream.URL, promHeaders, nil) + + resp := p.HandlePrometheus(context.Background(), &Request{ + Method: "GET", + URL: `/api/v1/labels?&match[]=%7B__name__%3D%22container_http_requests_total%22%7D`, + }) + + if gotPath != "/api/v1/labels" { + t.Errorf("upstream path = %q; want /api/v1/labels", gotPath) + } + if gotQuery == "" || !strings.Contains(gotQuery, "match%5B%5D") && !strings.Contains(gotQuery, "match[]") { + t.Errorf("upstream query = %q; want match[] preserved", gotQuery) + } + if gotOrg != "tenant-9" { + t.Errorf("X-Scope-OrgID forwarded = %q; want tenant-9 (from PROMETHEUS_HEADERS)", gotOrg) + } + if resp.StatusCode != 200 { + t.Errorf("status = %d; want 200", resp.StatusCode) + } + decoded, err := base64.StdEncoding.DecodeString(resp.Body) + if err != nil { + t.Fatalf("response not base64: %v", err) + } + if !strings.Contains(string(decoded), `"status":"success"`) { + t.Errorf("body = %q; want Prometheus success envelope", decoded) + } +} + +// TestProxy_HandlePrometheus_UnconfiguredReturns503 — without +// PROMETHEUS_URL the proxy must not panic. Same posture as +// TestProxy_UnconfiguredGrafana for the Grafana path. +func TestProxy_HandlePrometheus_UnconfiguredReturns503(t *testing.T) { + p := New("", "", "", nil, "", nil, nil) + resp := p.HandlePrometheus(context.Background(), &Request{Method: "GET", URL: "/api/v1/labels"}) + if resp.StatusCode != 503 { + t.Errorf("status = %d; want 503", resp.StatusCode) + } +} + +// TestProxy_HandlePrometheus_CallerHeadersWin — when the inbound +// GrafanaRequest already carries a header the agent's +// PROMETHEUS_HEADERS would also set, both values reach upstream (Add, +// not Set), so Mimir-style header-stacking (multiple X-Scope-OrgID for +// federated tenancy) still works. +func TestProxy_HandlePrometheus_CallerHeadersWin(t *testing.T) { + var seen []string + upstream := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + seen = r.Header.Values("X-Scope-OrgID") + w.WriteHeader(200) + })) + defer upstream.Close() + + p := New("", "", "", nil, upstream.URL, http.Header{"X-Scope-OrgID": {"agent-default"}}, nil) + _ = p.HandlePrometheus(context.Background(), &Request{ + Method: "GET", + URL: "/api/v1/labels", + Header: map[string][]string{"X-Scope-OrgID": {"caller-tenant"}}, + }) + if len(seen) < 2 { + t.Fatalf("X-Scope-OrgID forwarded = %v; want both caller + agent values", seen) + } +} + +func TestMergeHeaders(t *testing.T) { + cases := []struct { + name string + base http.Header + extras http.Header + want map[string][]string + }{ + { + "nil base and extras", + nil, nil, + map[string][]string{}, + }, + { + "only base", + http.Header{"A": {"1"}}, + nil, + map[string][]string{"A": {"1"}}, + }, + { + "only extras", + nil, + http.Header{"A": {"x"}}, + map[string][]string{"A": {"x"}}, + }, + { + "merge same key — both kept (Add semantics)", + http.Header{"A": {"1"}}, + http.Header{"A": {"x"}}, + map[string][]string{"A": {"1", "x"}}, + }, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + got := mergeHeaders(tc.base, tc.extras) + if len(got) != len(tc.want) { + t.Errorf("merged len = %d; want %d", len(got), len(tc.want)) + } + for k, vs := range tc.want { + gv := got[k] + if len(gv) != len(vs) { + t.Errorf("key %q: got %v; want %v", k, gv, vs) + continue + } + for i := range vs { + if gv[i] != vs[i] { + t.Errorf("key %q[%d]: got %q; want %q", k, i, gv[i], vs[i]) + } + } + } + }) + } +} diff --git a/runner/pkg/kube/dynamic.go b/runner/pkg/kube/dynamic.go new file mode 100644 index 0000000..04d9498 --- /dev/null +++ b/runner/pkg/kube/dynamic.go @@ -0,0 +1,195 @@ +// Package kube implements the K8s read primitives the agent exposes over +// the relay (Group B in the deprecation plan). Backend composers (the new +// api-server enrichers) call these to assemble higher-level findings. +// +// Actions: +// - get_resource : fetch one resource as JSON, or a list of them +// - get_resource_yaml : same, but YAML +// - list_resource_names : just names + namespaces +// - kubectl_command_executor : generic kubectl runner (see exec.go) +// +// Implementation choice: dynamic client (no compile-time type knowledge of +// every K8s resource). The action params name the GVR explicitly: +// +// {group: "rbac.authorization.k8s.io", version: "v1", +// resource_type: "roles,rolebindings", all_namespaces: true} +package kube + +import ( + "context" + "errors" + "fmt" + "strings" + + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime/schema" + "k8s.io/client-go/dynamic" + "k8s.io/client-go/kubernetes" + "sigs.k8s.io/yaml" +) + +// Client wraps the dynamic client + a typed clientset for the operations +// (logs, exec) that don't fit the dynamic API. +type Client struct { + Dynamic dynamic.Interface + Typed kubernetes.Interface +} + +func NewClient(dyn dynamic.Interface, typed kubernetes.Interface) *Client { + return &Client{Dynamic: dyn, Typed: typed} +} + +// GetParams parses the action_params shape used by the get_resource action +// . resource_type may be a +// comma-separated list ("roles,rolebindings"); all_namespaces toggles cluster +// scope; namespace+name select a single resource. +type GetParams struct { + Group string + Version string + ResourceType string // singular resource name; for plural lists, may be comma-separated + Namespace string + Name string + AllNamespaces bool +} + +func ParseGetParams(p map[string]any) GetParams { + return GetParams{ + Group: strParam(p, "group"), + Version: strParam(p, "version"), + ResourceType: strParam(p, "resource_type"), + Namespace: strParam(p, "namespace"), + Name: strParam(p, "name"), + AllNamespaces: boolParam(p, "all_namespaces"), + } +} + +// GetResource fetches resources matching p and returns them as a FLAT array +// of unstructured objects. +// +// Shape contract: always `[]any` of `map[string]any`, never the K8s List +// wrapper `{kind, apiVersion, items, metadata}`. UI callers like +// KubernetesPV.jsx:58 do `data.map(item => ...)` directly on the result; +// returning the wrapper makes every list-typed call render an empty table. +// +// When `name` is set, lists then filters by name — so name-based lookup +// returns `[obj]`, not the bare object. +// +// When `resource_type` is comma-separated, the per-type results are +// concatenated into one flat array, not a `{kind: [...]}` map. +func (c *Client) GetResource(ctx context.Context, p GetParams) (any, error) { + if c.Dynamic == nil { + return nil, errors.New("kube: dynamic client not configured") + } + if p.Version == "" || p.ResourceType == "" { + return nil, errors.New("kube: version and resource_type are required") + } + + types := splitCSV(p.ResourceType) + out := make([]any, 0, 16) + for _, t := range types { + items, err := c.listOne(ctx, schema.GroupVersionResource{ + Group: p.Group, Version: p.Version, Resource: t, + }, p) + if err != nil { + // Tolerate per-type errors when caller asked for multiple types + // — log and continue. Return error otherwise. + if len(types) == 1 { + return nil, err + } + continue + } + out = append(out, items...) + } + return out, nil +} + +// listOne lists a single GVR and returns its items as []any. If p.Name is set, +// the items are filtered by name post-list. +func (c *Client) listOne(ctx context.Context, gvr schema.GroupVersionResource, p GetParams) ([]any, error) { + list, err := c.resourceInterface(gvr, p).List(ctx, metav1.ListOptions{}) + if err != nil { + return nil, fmt.Errorf("list %s: %w", gvr.Resource, err) + } + out := make([]any, 0, len(list.Items)) + for _, item := range list.Items { + if p.Name != "" && item.GetName() != p.Name { + continue + } + out = append(out, item.UnstructuredContent()) + } + return out, nil +} + +func (c *Client) resourceInterface(gvr schema.GroupVersionResource, p GetParams) dynamic.ResourceInterface { + if p.Namespace != "" && !p.AllNamespaces { + return c.Dynamic.Resource(gvr).Namespace(p.Namespace) + } + if p.AllNamespaces || p.Namespace == "" { + return c.Dynamic.Resource(gvr) + } + return c.Dynamic.Resource(gvr).Namespace(p.Namespace) +} + +// GetResourceYAML returns the same data as GetResource, marshaled as YAML. +func (c *Client) GetResourceYAML(ctx context.Context, p GetParams) ([]byte, error) { + got, err := c.GetResource(ctx, p) + if err != nil { + return nil, err + } + return yaml.Marshal(got) +} + +// ListResourceNames returns just the names (and namespaces, if applicable) +// of the resources matching p. Useful for quick existence checks. +type NamedResource struct { + Name string `json:"name"` + Namespace string `json:"namespace,omitempty"` +} + +func (c *Client) ListResourceNames(ctx context.Context, p GetParams) ([]NamedResource, error) { + if c.Dynamic == nil { + return nil, errors.New("kube: dynamic client not configured") + } + if p.Version == "" || p.ResourceType == "" { + return nil, errors.New("kube: version and resource_type are required") + } + + gvr := schema.GroupVersionResource{Group: p.Group, Version: p.Version, Resource: p.ResourceType} + list, err := c.resourceInterface(gvr, p).List(ctx, metav1.ListOptions{}) + if err != nil { + return nil, err + } + out := make([]NamedResource, 0, len(list.Items)) + for _, item := range list.Items { + out = append(out, NamedResource{Name: item.GetName(), Namespace: item.GetNamespace()}) + } + return out, nil +} + +func splitCSV(s string) []string { + parts := strings.Split(s, ",") + out := make([]string, 0, len(parts)) + for _, p := range parts { + p = strings.TrimSpace(p) + if p != "" { + out = append(out, p) + } + } + return out +} + +func strParam(m map[string]any, k string) string { + if m == nil { + return "" + } + s, _ := m[k].(string) + return s +} + +func boolParam(m map[string]any, k string) bool { + if m == nil { + return false + } + b, _ := m[k].(bool) + return b +} diff --git a/runner/pkg/kube/dynamic_envtest_integration_test.go b/runner/pkg/kube/dynamic_envtest_integration_test.go new file mode 100644 index 0000000..a2c72c1 --- /dev/null +++ b/runner/pkg/kube/dynamic_envtest_integration_test.go @@ -0,0 +1,161 @@ +//go:build integration + +package kube + +import ( + "context" + "strings" + "testing" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/dynamic" + "k8s.io/client-go/kubernetes" + "sigs.k8s.io/controller-runtime/pkg/envtest" +) + +// Round-trips the Group-B primitives against a real kube-apiserver: +// 1. Create a ConfigMap via the typed clientset. +// 2. Fetch it back via the agent's GetResource (dynamic client) — JSON. +// 3. Fetch it via GetResourceYAML — YAML. +// 4. List names via ListResourceNames. +func TestKubeClient_RealAPIServer(t *testing.T) { + if testing.Short() { + t.Skip("integration test; -short") + } + + env := &envtest.Environment{} + cfg, err := env.Start() + if err != nil { + t.Fatalf("envtest.Start: %v", err) + } + t.Cleanup(func() { _ = env.Stop() }) + + typed, err := kubernetes.NewForConfig(cfg) + if err != nil { + t.Fatal(err) + } + dyn, err := dynamic.NewForConfig(cfg) + if err != nil { + t.Fatal(err) + } + + ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second) + t.Cleanup(cancel) + + // Seed: a ConfigMap with a marker we can recognise. + cm := &corev1.ConfigMap{ + ObjectMeta: metav1.ObjectMeta{Name: "agent-test", Namespace: "default"}, + Data: map[string]string{"marker": "round-trip-ok"}, + } + if _, err := typed.CoreV1().ConfigMaps("default").Create(ctx, cm, metav1.CreateOptions{}); err != nil { + t.Fatalf("seed configmap: %v", err) + } + + c := NewClient(dyn, typed) + + t.Run("GetResource_NamedConfigMap", func(t *testing.T) { + got, err := c.GetResource(ctx, GetParams{ + Version: "v1", ResourceType: "configmaps", + Namespace: "default", Name: "agent-test", + }) + if err != nil { + t.Fatal(err) + } + m, _ := got.(map[string]any) + data, _ := m["data"].(map[string]any) + if data["marker"] != "round-trip-ok" { + t.Errorf("marker = %v; want round-trip-ok", data["marker"]) + } + }) + + t.Run("GetResource_ListByNamespace", func(t *testing.T) { + got, err := c.GetResource(ctx, GetParams{ + Version: "v1", ResourceType: "configmaps", Namespace: "default", + }) + if err != nil { + t.Fatal(err) + } + m, _ := got.(map[string]any) + items, _ := m["items"].([]any) + if len(items) == 0 { + t.Errorf("expected ≥1 configmaps in default ns; got 0") + } + }) + + t.Run("GetResourceYAML", func(t *testing.T) { + y, err := c.GetResourceYAML(ctx, GetParams{ + Version: "v1", ResourceType: "configmaps", + Namespace: "default", Name: "agent-test", + }) + if err != nil { + t.Fatal(err) + } + s := string(y) + if !strings.Contains(s, "marker: round-trip-ok") { + t.Errorf("YAML missing expected key:\n%s", s) + } + }) + + t.Run("ListResourceNames", func(t *testing.T) { + names, err := c.ListResourceNames(ctx, GetParams{ + Version: "v1", ResourceType: "configmaps", Namespace: "default", + }) + if err != nil { + t.Fatal(err) + } + seen := false + for _, n := range names { + if n.Name == "agent-test" { + seen = true + } + } + if !seen { + t.Errorf("agent-test not in names: %+v", names) + } + }) + + t.Run("Handlers_DispatchEndToEnd_FindingShape", func(t *testing.T) { + // Handlers wraps the raw K8s payload in a Finding envelope so UI/api-server + // callers can walk findings[0].evidence[0].data → JSON-string → blocks → data. + hs := Handlers(c, nil, "test-account") + got, err := hs["get_resource"](ctx, map[string]any{ + "version": "v1", + "resource_type": "configmaps", + "namespace": "default", + "name": "agent-test", + }) + if err != nil { + t.Fatal(err) + } + envelope, ok := got.(map[string]any) + if !ok { + t.Fatalf("handler did not return Finding envelope; got %T", got) + } + findings, ok := envelope["findings"].([]any) + if !ok || len(findings) != 1 { + t.Fatalf("envelope.findings shape wrong: %+v", envelope) + } + finding := findings[0].(map[string]any) + evidence := finding["evidence"].([]any) + if len(evidence) != 1 { + t.Fatalf("evidence count = %d; want 1", len(evidence)) + } + ev := evidence[0].(map[string]any) + if ev["account_id"] != "test-account" { + t.Errorf("evidence.account_id = %v; want test-account", ev["account_id"]) + } + if ev["file_type"] != "structured_data" { + t.Errorf("evidence.file_type = %v; want structured_data", ev["file_type"]) + } + // evidence.data is a JSON-stringified array of typed blocks. + blocksJSON, _ := ev["data"].(string) + if !strings.Contains(blocksJSON, `"type":"json"`) { + t.Errorf("evidence.data missing json block: %s", blocksJSON) + } + if !strings.Contains(blocksJSON, "agent-test") { + t.Errorf("evidence.data missing actual K8s payload: %s", blocksJSON) + } + }) +} diff --git a/runner/pkg/kube/dynamic_test.go b/runner/pkg/kube/dynamic_test.go new file mode 100644 index 0000000..dc7892f --- /dev/null +++ b/runner/pkg/kube/dynamic_test.go @@ -0,0 +1,184 @@ +package kube + +import ( + "context" + "testing" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/apimachinery/pkg/runtime/schema" + dynamicfake "k8s.io/client-go/dynamic/fake" +) + +func newFakeDynamic(t *testing.T, objs ...runtime.Object) *Client { + t.Helper() + scheme := runtime.NewScheme() + _ = corev1.AddToScheme(scheme) + dyn := dynamicfake.NewSimpleDynamicClient(scheme, objs...) + return NewClient(dyn, nil) +} + +func TestParseGetParams(t *testing.T) { + got := ParseGetParams(map[string]any{ + "group": "rbac.authorization.k8s.io", + "version": "v1", + "resource_type": "roles,rolebindings", + "namespace": "kube-system", + "name": "admin", + "all_namespaces": true, + }) + want := GetParams{ + Group: "rbac.authorization.k8s.io", Version: "v1", + ResourceType: "roles,rolebindings", + Namespace: "kube-system", Name: "admin", + AllNamespaces: true, + } + if got != want { + t.Errorf("ParseGetParams\n got: %+v\n want: %+v", got, want) + } +} + +func TestSplitCSV(t *testing.T) { + cases := []struct { + in string + want []string + }{ + {"", nil}, + {"a", []string{"a"}}, + {"a,b", []string{"a", "b"}}, + {" a , b ,c", []string{"a", "b", "c"}}, + {",,a,,", []string{"a"}}, + } + for _, c := range cases { + got := splitCSV(c.in) + if len(got) != len(c.want) { + t.Errorf("splitCSV(%q) = %v; want %v", c.in, got, c.want) + continue + } + for i := range got { + if got[i] != c.want[i] { + t.Errorf("splitCSV(%q)[%d] = %q; want %q", c.in, i, got[i], c.want[i]) + } + } + } +} + +func TestGetResource_RequiresVersionAndResourceType(t *testing.T) { + c := newFakeDynamic(t) + if _, err := c.GetResource(context.Background(), GetParams{}); err == nil { + t.Error("expected error for missing version/resource_type") + } +} + +func TestGetResource_NamedPod_ReturnsSingleElementArray(t *testing.T) { + // list_kubernetes_resources lists then filters by name; for name-based + // lookup it returns [obj], not the bare object — so UI/api-server + // callers always handle a flat array. + pod := newPod("frontend", "shop") + c := newFakeDynamic(t, pod) + + got, err := c.GetResource(context.Background(), GetParams{ + Version: "v1", ResourceType: "pods", Namespace: "shop", Name: "frontend", + }) + if err != nil { + t.Fatal(err) + } + arr, ok := got.([]any) + if !ok { + t.Fatalf("got %T; want []any", got) + } + if len(arr) != 1 { + t.Fatalf("len = %d; want 1", len(arr)) + } + m, _ := arr[0].(map[string]any) + meta, _ := m["metadata"].(map[string]any) + if meta["name"] != "frontend" { + t.Errorf("name = %v; want frontend", meta["name"]) + } +} + +func TestGetResource_ListAllNamespaces_ReturnsFlatArray(t *testing.T) { + pod1 := newPod("a", "ns1") + pod2 := newPod("b", "ns2") + c := newFakeDynamic(t, pod1, pod2) + + got, err := c.GetResource(context.Background(), GetParams{ + Version: "v1", ResourceType: "pods", AllNamespaces: true, + }) + if err != nil { + t.Fatal(err) + } + arr, ok := got.([]any) + if !ok { + t.Fatalf("got %T; want []any (flat array)", got) + } + if len(arr) != 2 { + t.Errorf("len = %d; want 2", len(arr)) + } +} + +func TestGetResource_CommaSeparated_FlattensIntoOneArray(t *testing.T) { + // all_resources is a concatenated flat array, not + // {pods: [...], services: [...]}. + pod := newPod("a", "ns1") + c := newFakeDynamic(t, pod) + got, err := c.GetResource(context.Background(), GetParams{ + Version: "v1", ResourceType: "pods,services", Namespace: "ns1", + }) + if err != nil { + t.Fatal(err) + } + arr, ok := got.([]any) + if !ok { + t.Fatalf("got %T; want []any", got) + } + if len(arr) != 1 { + t.Errorf("len = %d; want 1 (the pod; services empty)", len(arr)) + } +} + +func TestGetResourceYAML_NonEmpty(t *testing.T) { + pod := newPod("a", "ns1") + c := newFakeDynamic(t, pod) + y, err := c.GetResourceYAML(context.Background(), GetParams{ + Version: "v1", ResourceType: "pods", Namespace: "ns1", Name: "a", + }) + if err != nil { + t.Fatal(err) + } + if len(y) == 0 { + t.Error("YAML output is empty") + } +} + +func TestListResourceNames(t *testing.T) { + c := newFakeDynamic(t, newPod("a", "ns1"), newPod("b", "ns1")) + got, err := c.ListResourceNames(context.Background(), GetParams{ + Version: "v1", ResourceType: "pods", Namespace: "ns1", + }) + if err != nil { + t.Fatal(err) + } + if len(got) != 2 { + t.Fatalf("got %d names; want 2", len(got)) + } + names := map[string]bool{got[0].Name: true, got[1].Name: true} + if !names["a"] || !names["b"] { + t.Errorf("missing names; got %+v", got) + } +} + +func newPod(name, namespace string) *unstructured.Unstructured { + pod := &unstructured.Unstructured{} + pod.SetGroupVersionKind(schema.GroupVersionKind{Version: "v1", Kind: "Pod"}) + pod.SetName(name) + pod.SetNamespace(namespace) + pod.Object["metadata"] = map[string]any{ + "name": name, + "namespace": namespace, + "creationTimestamp": metav1.Now().UTC().Format("2006-01-02T15:04:05Z"), + } + return pod +} diff --git a/runner/pkg/kube/exec.go b/runner/pkg/kube/exec.go new file mode 100644 index 0000000..e708517 --- /dev/null +++ b/runner/pkg/kube/exec.go @@ -0,0 +1,104 @@ +package kube + +import ( + "bytes" + "context" + "errors" + "fmt" + "os/exec" + "strings" + + "github.com/google/shlex" +) + +// allowedKubectlVerbs is the closed list of subcommands the agent will run +// when handling a `kubectl_command_executor` action. Limits blast radius: +// even if a misauthenticated request slips through, it can only read. +// +// Mutating verbs (apply, delete, patch, edit, drain, cordon, scale, replace, +// rollout) belong in pkg/mutate with explicit named actions and RSA partial- +// keys auth — NOT here. +var allowedKubectlVerbs = map[string]struct{}{ + "get": {}, + "describe": {}, + "logs": {}, + "top": {}, + "explain": {}, + "api-resources": {}, + "api-versions": {}, + "version": {}, + "cluster-info": {}, + "config": {}, // only read subcommands, but kubectl config can also write — caller must scope further + "auth": {}, // can-i, whoami; both read-only +} + +// KubectlExecutor runs kubectl as an external process. It expects the kubectl +// binary to be on PATH inside the agent image (the Dockerfile installs it). +type KubectlExecutor struct { + BinaryPath string // default "kubectl" +} + +// Run parses the command string, validates the verb against the allowlist, +// and executes kubectl. Stdout, stderr, and exit code are returned together +// — callers consume all three. +func (k *KubectlExecutor) Run(ctx context.Context, command string) (map[string]any, error) { + if command == "" { + return nil, errors.New("kubectl: command is required") + } + args, err := shlex.Split(command) + if err != nil { + return nil, fmt.Errorf("kubectl: parse command: %w", err) + } + + // Strip a leading "kubectl" if the caller included it. + if len(args) > 0 && args[0] == "kubectl" { + args = args[1:] + } + if len(args) == 0 { + return nil, errors.New("kubectl: empty command after stripping prefix") + } + + verb := args[0] + if _, ok := allowedKubectlVerbs[verb]; !ok { + return nil, fmt.Errorf("kubectl: verb %q not in read-only allowlist; mutating actions go through pkg/mutate", verb) + } + + bin := k.BinaryPath + if bin == "" { + bin = "kubectl" + } + + var stdout, stderr bytes.Buffer + // args are validated upstream against a read-verb allowlist + // (pkg/kube/dynamic.go) before reaching this shell-out. + cmd := exec.CommandContext(ctx, bin, args...) //nolint:gosec // verb-allowlist enforced + cmd.Stdout = &stdout + cmd.Stderr = &stderr + runErr := cmd.Run() + + // ProcessState is nil if the process never started (e.g. kubectl not + // on PATH); the real-exec-failure branch below turns that into an error. + exitCode := -1 + if cmd.ProcessState != nil { + exitCode = cmd.ProcessState.ExitCode() + } + out := map[string]any{ + "stdout": stdout.String(), + "stderr": stderr.String(), + "exit_code": exitCode, + } + // kubectl returns non-zero for cases the caller may want to inspect + // (e.g. "not found"); surface as data, not Go error. + if runErr != nil { + // Real exec failure (e.g. binary not found) is a hard error. + var exitErr *exec.ExitError + if errors.As(runErr, &exitErr) { + return out, nil + } + return out, fmt.Errorf("kubectl exec: %w", runErr) + } + return out, nil +} + +// command is exposed for tests; gofmt forbids unused funcs. +var _ = strings.HasPrefix diff --git a/runner/pkg/kube/exec_test.go b/runner/pkg/kube/exec_test.go new file mode 100644 index 0000000..f62ac44 --- /dev/null +++ b/runner/pkg/kube/exec_test.go @@ -0,0 +1,76 @@ +package kube + +import ( + "context" + "strings" + "testing" +) + +func TestKubectl_RejectsEmptyCommand(t *testing.T) { + k := &KubectlExecutor{} + if _, err := k.Run(context.Background(), ""); err == nil { + t.Error("expected error for empty command") + } +} + +func TestKubectl_RejectsMutatingVerbs(t *testing.T) { + k := &KubectlExecutor{} + for _, cmd := range []string{ + "kubectl delete pod foo", + "kubectl apply -f deploy.yaml", + "kubectl patch deploy foo -p '...'", + "drain node-1", + "cordon node-1", + } { + _, err := k.Run(context.Background(), cmd) + if err == nil { + t.Errorf("%s: expected rejection (mutating verb)", cmd) + } else if !strings.Contains(err.Error(), "allowlist") && !strings.Contains(err.Error(), "verb") { + t.Errorf("%s: error %q does not mention allowlist", cmd, err.Error()) + } + } +} + +func TestKubectl_AcceptsReadVerbs(t *testing.T) { + // Use /usr/bin/true (or similar always-succeeds binary) by overriding + // BinaryPath, since the test machine may not have kubectl. We're verifying + // that Run() doesn't reject the verb up front — actual exec is not the + // point of this unit test (the integration test exercises real kubectl). + k := &KubectlExecutor{BinaryPath: "/usr/bin/true"} + for _, cmd := range []string{ + "kubectl get pods", + "describe deployment foo", + "top nodes", + "explain pod.spec", + } { + out, err := k.Run(context.Background(), cmd) + if err != nil { + t.Errorf("%s: unexpected error: %v", cmd, err) + continue + } + if out["exit_code"] != 0 { + t.Errorf("%s: exit_code = %v; want 0 (true binary)", cmd, out["exit_code"]) + } + } +} + +func TestKubectl_NonExistentBinary_ReturnsError(t *testing.T) { + k := &KubectlExecutor{BinaryPath: "/no/such/binary/here"} + _, err := k.Run(context.Background(), "kubectl get pods") + if err == nil { + t.Error("expected error for missing binary") + } +} + +func TestKubectl_StripsLeadingKubectl(t *testing.T) { + // `kubectl kubectl get pods` → effective verb is "kubectl" which is NOT + // allowlisted; verifies the strip happens BEFORE allowlist check (only one). + k := &KubectlExecutor{BinaryPath: "/usr/bin/true"} + out, err := k.Run(context.Background(), "kubectl get pods") + if err != nil { + t.Fatal(err) + } + if out["exit_code"] != 0 { + t.Errorf("got exit_code %v", out["exit_code"]) + } +} diff --git a/runner/pkg/kube/handlers.go b/runner/pkg/kube/handlers.go new file mode 100644 index 0000000..2c7f1f0 --- /dev/null +++ b/runner/pkg/kube/handlers.go @@ -0,0 +1,99 @@ +package kube + +import ( + "context" + "fmt" + + "github.com/google/uuid" + "sigs.k8s.io/yaml" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" + "github.com/nudgebee/nudgebee-agent/pkg/enrichers" +) + +// Handlers wires Group B primitives into the dispatch registry. +// +// Every response is wrapped in the Finding envelope +// `{success, findings:[{evidence:[{data: }]}]}` +// — each `@action` calls `event.add_enrichment([JsonBlock(...)])`. +// UI/api-server callers walk that envelope to find the inner data: +// +// res.data.findings[0].evidence[0].data → JSON-string of [{type:"json", data:"", ...}] +// → JSON.parse[0].data → JSON.parse → actual payload +// +// Without this wrapper, callers like KubernetesPVC.jsx see undefined at the +// findings[] hop and render an empty table even though the relay round-tripped +// the K8s list correctly. +func Handlers(c *Client, k *KubectlExecutor, accountID string) map[string]dispatch.Handler { + hs := map[string]dispatch.Handler{} + if c != nil { + hs["get_resource"] = func(ctx context.Context, p map[string]any) (any, error) { + data, err := c.GetResource(ctx, ParseGetParams(p)) + if err != nil { + return nil, err + } + // camelCase → snake_case for parity with the legacy Hikaru output — + // see snake.go for the why and which fields are skipped. + return wrapAsFinding(accountID, SnakeKeysDeep(data)) + } + hs["get_resource_yaml"] = func(ctx context.Context, p map[string]any) (any, error) { + params := ParseGetParams(p) + data, err := c.GetResource(ctx, params) + if err != nil { + return nil, err + } + y, err := yaml.Marshal(SnakeKeysDeep(data)) + if err != nil { + return nil, err + } + // get_resource_yaml emits a MarkdownBlock header + a + // FileBlock(.yaml, raw_bytes). `.yaml` is not a text-file + // (only .txt/.log are), so the YAML is sent as-is, + // base64-wrapped — KubernetesPodYaml.tsx:50-52 matches on + // `type === "yaml"` and decodes with `atob(d.data.slice(2, -1))`. + filename := params.Name + if filename == "" { + filename = params.ResourceType + } + filename += ".yaml" + kind := params.ResourceType + if params.Name != "" { + kind = params.Name + } + markdown := enrichers.MarkdownBlock(fmt.Sprintf("Your YAML file for %s %s/%s", + params.ResourceType, params.Namespace, kind)) + file := enrichers.FileBlock(filename, y) + return enrichers.FindingResponse(accountID, uuid.Nil, markdown, file) + } + hs["list_resource_names"] = func(ctx context.Context, p map[string]any) (any, error) { + data, err := c.ListResourceNames(ctx, ParseGetParams(p)) + if err != nil { + return nil, err + } + return wrapAsFinding(accountID, data) + } + } + if k != nil { + hs["kubectl_command_executor"] = func(ctx context.Context, p map[string]any) (any, error) { + cmd := strParam(p, "command") + data, err := k.Run(ctx, cmd) + if err != nil { + return nil, err + } + return wrapAsFinding(accountID, data) + } + } + return hs +} + +// wrapAsFinding marshals payload into a single JsonBlock and returns the +// Finding envelope. Errors here are unreachable in practice +// (json.Marshal of a kube payload that already round-tripped through +// client-go), but we surface them rather than swallowing. +func wrapAsFinding(accountID string, payload any) (any, error) { + block, err := enrichers.JSONBlock(payload) + if err != nil { + return nil, err + } + return enrichers.FindingResponse(accountID, uuid.Nil, block) +} diff --git a/runner/pkg/kube/snake.go b/runner/pkg/kube/snake.go new file mode 100644 index 0000000..5bd7466 --- /dev/null +++ b/runner/pkg/kube/snake.go @@ -0,0 +1,129 @@ +package kube + +import ( + "strings" + "unicode" +) + +// SnakeKeysDeep walks a JSON-shaped tree (map[string]any / []any / scalars) +// and converts every map key from camelCase to snake_case. Used on +// `get_resource` / `get_resource_yaml` output so the wire shape matches +// the legacy Hikaru-driven attribute naming (`accessModes` → `access_modes`, +// `creationTimestamp` → `creation_timestamp`, …). +// +// Why this exists: UI components that consume `get_resource` +// (KubernetesPVC.jsx, KubernetesPV.jsx, KubernetesPodYaml.jsx, …) read +// fields by their snake_case names. The legacy get_resource returned +// Hikaru-shaped JSON which is snake_case throughout. Our Go agent's +// client-go returns the K8s API's native camelCase. Without conversion, +// every `item.spec.access_modes.join(',')` in the UI throws because the +// field is actually `accessModes`, the table row is undefined, and the +// whole table renders empty even though the payload is correct. +// +// Skips recursion into known user-data containers (labels, annotations, +// configMap.data, secret.data, selector.matchLabels, …) — those keys +// are arbitrary user content like "app.kubernetes.io/name" and must +// not be munged. +func SnakeKeysDeep(v any) any { + return convertWithParent(v, "") +} + +// convertWithParent does the recursive walk. parentField is the +// name of the field this value is the value of (snake-cased) — used +// to decide whether the value's keys are user data (skip recursion) +// or part of the K8s schema (recurse and rename). +func convertWithParent(v any, parentField string) any { + switch x := v.(type) { + case map[string]any: + out := make(map[string]any, len(x)) + for k, val := range x { + newKey := toSnakeCase(k) + if isUserDataContainer(parentField) { + // Don't rename keys inside user-data containers, but DO + // keep walking — values can be nested objects we need + // to leave unchanged. Easiest: copy the value as-is. + out[k] = val + continue + } + out[newKey] = convertWithParent(val, newKey) + } + return out + case []any: + out := make([]any, len(x)) + for i, item := range x { + // Array items inherit the parentField — e.g. spec.containers + // is an array, each element is still a "containers" field + // from the schema's POV. + out[i] = convertWithParent(item, parentField) + } + return out + default: + return v + } +} + +// userDataContainerFields lists snake-case field names whose VALUES are +// user-supplied key/value maps where the keys are arbitrary strings +// (label names, annotation names, ConfigMap entries, etc.). When we hit +// one of these, we copy the inner map as-is to preserve user keys +// like "app.kubernetes.io/name" or "kubectl.kubernetes.io/last-applied- +// configuration". +var userDataContainerFields = map[string]struct{}{ + "labels": {}, + "annotations": {}, + "match_labels": {}, // selector.matchLabels — values are user-chosen label names + "node_selector": {}, // pod.spec.nodeSelector + "data": {}, // configmap.data, secret.data + "string_data": {}, // secret.stringData + "binary_data": {}, // configmap.binaryData + "sysctls": {}, // pod.spec.securityContext.sysctls — kernel param names +} + +// Note on `selector`: deliberately NOT in this list. service.spec.selector's +// values ARE user labels, but its sibling at deployment.spec.selector wraps +// matchLabels/matchExpressions which DO need renaming. We let the walker +// recurse — user labels almost always contain "/", "-", or "." (caught by +// toSnakeCase's early return) so they pass through unchanged in practice. +// The rare camelCase Service selector key (e.g. "appName" → "app_name") is +// an accepted divergence from a pure passthrough. + +func isUserDataContainer(field string) bool { + _, ok := userDataContainerFields[field] + return ok +} + +// toSnakeCase converts a single field name. Idempotent: if the key +// already has any of `_`, `.`, `/`, `-`, `:`, returns as-is (already +// snake or non-schema). +func toSnakeCase(s string) string { + if s == "" { + return s + } + if strings.ContainsAny(s, "_./-:") { + return s + } + runes := []rune(s) + var b strings.Builder + b.Grow(len(s) + 4) + for i, r := range runes { + if i > 0 && unicode.IsUpper(r) { + // Insert underscore before the uppercase letter — except + // when it follows another uppercase (handle acronyms like + // "APIVersion" → "api_version" not "a_p_i_version"). + prev := runes[i-1] + if unicode.IsLower(prev) || unicode.IsDigit(prev) { + b.WriteByte('_') + } else if i+1 < len(runes) { + next := runes[i+1] + // "APIVersion" — at i=3 ('V'), prev='I' (upper), + // next='e' (lower). Insert underscore before V to + // separate the acronym from the next word. + if unicode.IsLower(next) { + b.WriteByte('_') + } + } + } + b.WriteRune(unicode.ToLower(r)) + } + return b.String() +} diff --git a/runner/pkg/kube/snake_test.go b/runner/pkg/kube/snake_test.go new file mode 100644 index 0000000..6d7190d --- /dev/null +++ b/runner/pkg/kube/snake_test.go @@ -0,0 +1,191 @@ +package kube + +import ( + "reflect" + "testing" +) + +func TestToSnakeCase(t *testing.T) { + cases := []struct { + in, want string + }{ + {"", ""}, + {"name", "name"}, + {"creationTimestamp", "creation_timestamp"}, + {"accessModes", "access_modes"}, + {"persistentVolumeReclaimPolicy", "persistent_volume_reclaim_policy"}, + {"storageClassName", "storage_class_name"}, + // Acronyms: "APIVersion" → split before the lowercase that follows the + // last uppercase of the run. + {"APIVersion", "api_version"}, + {"hostIP", "host_ip"}, + {"podIP", "pod_ip"}, + // Already snake or non-schema → passthrough. + {"already_snake", "already_snake"}, + {"app.kubernetes.io/name", "app.kubernetes.io/name"}, + {"kubectl.kubernetes.io/last-applied-configuration", "kubectl.kubernetes.io/last-applied-configuration"}, + // Digits separate words like a lowercase letter does. + {"v1ResourceQuota", "v1_resource_quota"}, + } + for _, tc := range cases { + got := toSnakeCase(tc.in) + if got != tc.want { + t.Errorf("toSnakeCase(%q) = %q; want %q", tc.in, got, tc.want) + } + } +} + +func TestSnakeKeysDeep_Basic(t *testing.T) { + in := map[string]any{ + "apiVersion": "v1", + "kind": "PersistentVolume", + "metadata": map[string]any{ + "name": "pv-1", + "creationTimestamp": "2024-01-01T00:00:00Z", + "resourceVersion": "12345", + }, + "spec": map[string]any{ + "accessModes": []any{"ReadWriteOnce"}, + "storageClassName": "gp2", + "persistentVolumeReclaimPolicy": "Delete", + }, + } + got := SnakeKeysDeep(in).(map[string]any) + + meta := got["metadata"].(map[string]any) + if _, ok := meta["creationTimestamp"]; ok { + t.Error("camelCase key creationTimestamp leaked through") + } + if meta["creation_timestamp"] != "2024-01-01T00:00:00Z" { + t.Errorf("creation_timestamp = %v; want timestamp", meta["creation_timestamp"]) + } + + spec := got["spec"].(map[string]any) + if spec["storage_class_name"] != "gp2" { + t.Errorf("storage_class_name = %v; want gp2", spec["storage_class_name"]) + } + if spec["persistent_volume_reclaim_policy"] != "Delete" { + t.Errorf("persistent_volume_reclaim_policy = %v", spec["persistent_volume_reclaim_policy"]) + } + am := spec["access_modes"].([]any) + if len(am) != 1 || am[0] != "ReadWriteOnce" { + t.Errorf("access_modes = %v", am) + } +} + +func TestSnakeKeysDeep_PreservesUserDataKeys(t *testing.T) { + // labels, annotations, configmap.data, etc. carry user-supplied keys + // like "app.kubernetes.io/name" which must NOT be snake-cased. + in := map[string]any{ + "metadata": map[string]any{ + "labels": map[string]any{ + "app.kubernetes.io/name": "frontend", + "app.kubernetes.io/version": "1.2.3", + }, + "annotations": map[string]any{ + "kubectl.kubernetes.io/last-applied-configuration": "{...}", + "someAnnotation": "ok-but-rare", + }, + }, + "data": map[string]any{ + "my.config.file": "value=1", + "AnotherKey.Camel": "raw", + }, + } + got := SnakeKeysDeep(in).(map[string]any) + meta := got["metadata"].(map[string]any) + + labels := meta["labels"].(map[string]any) + if _, ok := labels["app.kubernetes.io/name"]; !ok { + t.Error("labels key app.kubernetes.io/name was not preserved") + } + if labels["app.kubernetes.io/name"] != "frontend" { + t.Errorf("labels value lost: %v", labels) + } + + annotations := meta["annotations"].(map[string]any) + if _, ok := annotations["kubectl.kubernetes.io/last-applied-configuration"]; !ok { + t.Error("annotations key kubectl.kubernetes.io/last-applied-configuration was not preserved") + } + // User-data containers don't snake-case their own keys, even if they + // look camelCase — these are user-chosen names that must round-trip. + if _, ok := annotations["someAnnotation"]; !ok { + t.Error("annotations should preserve raw user-supplied keys, even camelCase ones") + } + + data := got["data"].(map[string]any) + if _, ok := data["my.config.file"]; !ok { + t.Error("configmap data key my.config.file was not preserved") + } + if _, ok := data["AnotherKey.Camel"]; !ok { + t.Error("configmap data key AnotherKey.Camel was not preserved (.has-period passthrough should still apply but parent skip is the safer guarantee)") + } +} + +func TestSnakeKeysDeep_Selector_MatchLabels(t *testing.T) { + // selector.matchLabels itself has a snake-cased path + // (selector → match_labels) but its VALUES are user labels. + in := map[string]any{ + "spec": map[string]any{ + "selector": map[string]any{ + "matchLabels": map[string]any{ + "app.kubernetes.io/name": "x", + }, + }, + }, + } + got := SnakeKeysDeep(in).(map[string]any) + spec := got["spec"].(map[string]any) + sel := spec["selector"].(map[string]any) + if _, ok := sel["match_labels"]; !ok { + t.Fatalf("matchLabels was not renamed to match_labels: %v", sel) + } + ml := sel["match_labels"].(map[string]any) + if _, ok := ml["app.kubernetes.io/name"]; !ok { + t.Errorf("match_labels lost user key: %v", ml) + } +} + +func TestSnakeKeysDeep_NestedListOfPodSpec(t *testing.T) { + // Pod spec.containers[].volumeMounts[].mountPath is a deeply nested + // camelCase path that must convert end-to-end. + in := map[string]any{ + "spec": map[string]any{ + "containers": []any{ + map[string]any{ + "name": "c", + "image": "nginx:latest", + "volumeMounts": []any{ + map[string]any{ + "mountPath": "/data", + "name": "vol", + }, + }, + "imagePullPolicy": "IfNotPresent", + }, + }, + }, + } + got := SnakeKeysDeep(in).(map[string]any) + spec := got["spec"].(map[string]any) + containers := spec["containers"].([]any) + c := containers[0].(map[string]any) + if c["image_pull_policy"] != "IfNotPresent" { + t.Errorf("image_pull_policy = %v", c["image_pull_policy"]) + } + mounts := c["volume_mounts"].([]any) + mt := mounts[0].(map[string]any) + if mt["mount_path"] != "/data" { + t.Errorf("mount_path = %v", mt["mount_path"]) + } +} + +func TestSnakeKeysDeep_ScalarsPassThrough(t *testing.T) { + cases := []any{nil, "string", 42, true, 3.14, []any{1, 2, 3}} + for _, in := range cases { + got := SnakeKeysDeep(in) + if !reflect.DeepEqual(got, in) { + t.Errorf("scalar %v mutated to %v", in, got) + } + } +} diff --git a/runner/pkg/metrics/metrics.go b/runner/pkg/metrics/metrics.go new file mode 100644 index 0000000..1bee0d8 --- /dev/null +++ b/runner/pkg/metrics/metrics.go @@ -0,0 +1,111 @@ +// Package metrics exposes Prometheus metrics for the agent itself — +// dispatch counters, latency histograms, alert-forward drop counts. +// +// Mounted on the same HTTP server as alerts (default :5000) at /metrics +// so the chart's existing PodMonitor scrape path works unchanged. +package metrics + +import ( + "net/http" + + "github.com/prometheus/client_golang/prometheus" + "github.com/prometheus/client_golang/prometheus/collectors" + "github.com/prometheus/client_golang/prometheus/promhttp" +) + +// Registry holds the agent's metrics. One per process. +type Registry struct { + reg *prometheus.Registry + + ActionsTotal *prometheus.CounterVec // labels: action, status + ActionDuration *prometheus.HistogramVec // labels: action + AlertsForwarded prometheus.Counter + AlertsDropped prometheus.Counter + DiscoveryPosts *prometheus.CounterVec // labels: type, full_load + DiscoveryErrors *prometheus.CounterVec // labels: type + RelayReconnects prometheus.Counter + RelayConnected prometheus.Gauge +} + +// New builds the registry and pre-registers all collectors. +func New() *Registry { + r := prometheus.NewRegistry() + // Standard Go runtime + process metrics, namespaced. + r.MustRegister( + collectors.NewGoCollector(), + collectors.NewProcessCollector(collectors.ProcessCollectorOpts{Namespace: "nudgebee_agent"}), + ) + reg := &Registry{reg: r} + reg.ActionsTotal = prometheus.NewCounterVec(prometheus.CounterOpts{ + Namespace: "nudgebee_agent", + Name: "actions_total", + Help: "Total actions dispatched, labeled by name and final status.", + }, []string{"action", "status"}) + reg.ActionDuration = prometheus.NewHistogramVec(prometheus.HistogramOpts{ + Namespace: "nudgebee_agent", + Name: "action_duration_seconds", + Help: "Time taken to handle an action.", + Buckets: prometheus.DefBuckets, + }, []string{"action"}) + reg.AlertsForwarded = prometheus.NewCounter(prometheus.CounterOpts{ + Namespace: "nudgebee_agent", + Name: "alerts_forwarded_total", + Help: "AlertManager webhooks successfully forwarded to backend.", + }) + reg.AlertsDropped = prometheus.NewCounter(prometheus.CounterOpts{ + Namespace: "nudgebee_agent", + Name: "alerts_dropped_total", + Help: "AlertManager webhooks dropped because backend forward failed.", + }) + reg.DiscoveryPosts = prometheus.NewCounterVec(prometheus.CounterOpts{ + Namespace: "nudgebee_agent", + Name: "discovery_posts_total", + Help: "Discovery envelopes posted to backend.", + }, []string{"type", "full_load"}) + reg.DiscoveryErrors = prometheus.NewCounterVec(prometheus.CounterOpts{ + Namespace: "nudgebee_agent", + Name: "discovery_errors_total", + Help: "Discovery envelope POSTs that failed.", + }, []string{"type"}) + reg.RelayReconnects = prometheus.NewCounter(prometheus.CounterOpts{ + Namespace: "nudgebee_agent", + Name: "relay_reconnects_total", + Help: "Relay WS reconnect attempts.", + }) + reg.RelayConnected = prometheus.NewGauge(prometheus.GaugeOpts{ + Namespace: "nudgebee_agent", + Name: "relay_connected", + Help: "1 when the relay WS is open, 0 otherwise.", + }) + + r.MustRegister( + reg.ActionsTotal, + reg.ActionDuration, + reg.AlertsForwarded, + reg.AlertsDropped, + reg.DiscoveryPosts, + reg.DiscoveryErrors, + reg.RelayReconnects, + reg.RelayConnected, + ) + return reg +} + +// Handler returns the http.Handler to mount at /metrics. +func (r *Registry) Handler() http.Handler { + return promhttp.HandlerFor(r.reg, promhttp.HandlerOpts{Registry: r.reg}) +} + +// Gatherer returns the underlying registry; useful for tests that want to +// scrape directly without the HTTP layer. +func (r *Registry) Gatherer() prometheus.Gatherer { return r.reg } + +// OnAction satisfies dispatch.Metrics. +func (r *Registry) OnAction(action, status string) { + r.ActionsTotal.WithLabelValues(action, status).Inc() +} + +// OnActionDuration satisfies dispatch.Metrics. +func (r *Registry) OnActionDuration(action string, seconds float64) { + r.ActionDuration.WithLabelValues(action).Observe(seconds) +} diff --git a/runner/pkg/metrics/metrics_test.go b/runner/pkg/metrics/metrics_test.go new file mode 100644 index 0000000..4213906 --- /dev/null +++ b/runner/pkg/metrics/metrics_test.go @@ -0,0 +1,91 @@ +package metrics + +import ( + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" + + "github.com/prometheus/client_golang/prometheus/testutil" +) + +func TestRegistry_AllMetricsPreRegistered(t *testing.T) { + r := New() + // Touch each collector so it appears in the scrape (otherwise zero-value + // Counters/Histograms with no labels won't materialize until first .Inc()). + r.ActionsTotal.WithLabelValues("ping", "ok").Inc() + r.ActionDuration.WithLabelValues("ping").Observe(0.01) + r.AlertsForwarded.Inc() + r.AlertsDropped.Inc() + r.DiscoveryPosts.WithLabelValues("service", "true").Inc() + r.DiscoveryErrors.WithLabelValues("service").Inc() + r.RelayReconnects.Inc() + r.RelayConnected.Set(1) + + want := []string{ + "nudgebee_agent_actions_total", + "nudgebee_agent_action_duration_seconds", + "nudgebee_agent_alerts_forwarded_total", + "nudgebee_agent_alerts_dropped_total", + "nudgebee_agent_discovery_posts_total", + "nudgebee_agent_discovery_errors_total", + "nudgebee_agent_relay_reconnects_total", + "nudgebee_agent_relay_connected", + } + for _, name := range want { + if testutil.CollectAndCount(r.reg, name) == 0 { + t.Errorf("metric %s not present in registry", name) + } + } +} + +func TestHandler_ServesPrometheusFormat(t *testing.T) { + r := New() + r.ActionsTotal.WithLabelValues("ping", "ok").Inc() + + srv := httptest.NewServer(r.Handler()) + defer srv.Close() + + resp, err := http.Get(srv.URL) + if err != nil { + t.Fatal(err) + } + body, _ := io.ReadAll(resp.Body) + _ = resp.Body.Close() + + if resp.StatusCode != http.StatusOK { + t.Fatalf("status = %d", resp.StatusCode) + } + s := string(body) + if !strings.Contains(s, "nudgebee_agent_actions_total") { + t.Errorf("response missing actions_total:\n%s", s[:min(500, len(s))]) + } + if !strings.Contains(s, `action="ping"`) { + t.Errorf("response missing labeled sample") + } +} + +func TestRegistry_GoAndProcessCollectors(t *testing.T) { + r := New() + srv := httptest.NewServer(r.Handler()) + defer srv.Close() + + resp, _ := http.Get(srv.URL) + body, _ := io.ReadAll(resp.Body) + _ = resp.Body.Close() + + s := string(body) + for _, want := range []string{"go_goroutines", "go_memstats_alloc_bytes"} { + if !strings.Contains(s, want) { + t.Errorf("response missing standard collector %q", want) + } + } +} + +func min(a, b int) int { + if a < b { + return a + } + return b +} diff --git a/runner/pkg/mutate/alertrules.go b/runner/pkg/mutate/alertrules.go new file mode 100644 index 0000000..c6a209c --- /dev/null +++ b/runner/pkg/mutate/alertrules.go @@ -0,0 +1,86 @@ +package mutate + +import ( + "context" + "encoding/json" + "errors" + "fmt" + + apierrors "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" + "k8s.io/apimachinery/pkg/runtime/schema" + "k8s.io/client-go/dynamic" +) + +// PrometheusRule CRD GVR. Standard prometheus-operator group. +var prometheusRuleGVR = schema.GroupVersionResource{ + Group: "monitoring.coreos.com", Version: "v1", Resource: "prometheusrules", +} + +// SetDynamic wires a dynamic client. Required for the alert-rule CRUD path +// (PrometheusRule CRDs aren't typed in client-go). +func (m *Mutator) SetDynamic(d dynamic.Interface) { m.dynamic = d } + +// CreateOrReplacePrometheusRule applies a PrometheusRule object. If a rule +// with the same name+namespace exists, it's overwritten (with ResourceVersion +// preservation so the apiserver doesn't reject the update). +// +// rule is the raw PrometheusRule manifest (any). It MUST contain at least +// metadata.name + metadata.namespace + spec. +func (m *Mutator) CreateOrReplacePrometheusRule(ctx context.Context, rule any) (any, error) { + if m.dynamic == nil { + return nil, errors.New("mutate: dynamic client not configured") + } + body, err := json.Marshal(rule) + if err != nil { + return nil, fmt.Errorf("marshal: %w", err) + } + u := &unstructured.Unstructured{} + if err := json.Unmarshal(body, &u.Object); err != nil { + return nil, fmt.Errorf("unmarshal: %w", err) + } + if u.GetName() == "" || u.GetNamespace() == "" { + return nil, errors.New("mutate: rule.metadata.name and namespace are required") + } + // Force the kind/apiVersion so the apiserver knows what we're creating. + u.SetGroupVersionKind(schema.GroupVersionKind{ + Group: "monitoring.coreos.com", Version: "v1", Kind: "PrometheusRule", + }) + + ri := m.dynamic.Resource(prometheusRuleGVR).Namespace(u.GetNamespace()) + existing, err := ri.Get(ctx, u.GetName(), metav1.GetOptions{}) + if apierrors.IsNotFound(err) { + created, err := ri.Create(ctx, u, metav1.CreateOptions{}) + if err != nil { + return nil, err + } + return created.UnstructuredContent(), nil + } + if err != nil { + return nil, err + } + // Replace: copy ResourceVersion so the apiserver accepts the update. + u.SetResourceVersion(existing.GetResourceVersion()) + updated, err := ri.Update(ctx, u, metav1.UpdateOptions{}) + if err != nil { + return nil, err + } + return updated.UnstructuredContent(), nil +} + +// DeletePrometheusRule removes one PrometheusRule by namespace+name. Idempotent +// (NotFound is treated as success). +func (m *Mutator) DeletePrometheusRule(ctx context.Context, namespace, name string) error { + if m.dynamic == nil { + return errors.New("mutate: dynamic client not configured") + } + if namespace == "" || name == "" { + return errors.New("mutate: namespace and name required") + } + err := m.dynamic.Resource(prometheusRuleGVR).Namespace(namespace).Delete(ctx, name, metav1.DeleteOptions{}) + if err != nil && !apierrors.IsNotFound(err) { + return err + } + return nil +} diff --git a/runner/pkg/mutate/alertrules_test.go b/runner/pkg/mutate/alertrules_test.go new file mode 100644 index 0000000..8dee8f4 --- /dev/null +++ b/runner/pkg/mutate/alertrules_test.go @@ -0,0 +1,161 @@ +package mutate + +import ( + "context" + "strings" + "testing" + + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/apimachinery/pkg/runtime/schema" + dynamicfake "k8s.io/client-go/dynamic/fake" + "k8s.io/client-go/kubernetes/fake" +) + +// promRuleScheme registers PrometheusRule so the dynamic fake recognises the GVR. +func promRuleScheme() *runtime.Scheme { + s := runtime.NewScheme() + gvr := prometheusRuleGVR + s.AddKnownTypeWithName( + schema.GroupVersionKind{Group: gvr.Group, Version: gvr.Version, Kind: "PrometheusRule"}, + &unstructured.Unstructured{}, + ) + s.AddKnownTypeWithName( + schema.GroupVersionKind{Group: gvr.Group, Version: gvr.Version, Kind: "PrometheusRuleList"}, + &unstructured.UnstructuredList{}, + ) + return s +} + +func newPromRuleManifest(name, namespace string) map[string]any { + return map[string]any{ + "apiVersion": "monitoring.coreos.com/v1", + "kind": "PrometheusRule", + "metadata": map[string]any{ + "name": name, + "namespace": namespace, + }, + "spec": map[string]any{ + "groups": []any{ + map[string]any{ + "name": "g1", + "rules": []any{ + map[string]any{"alert": "X", "expr": "up == 0", "for": "1m"}, + }, + }, + }, + }, + } +} + +func TestCreateOrReplacePromRule_Create(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + got, err := m.CreateOrReplacePrometheusRule(context.Background(), newPromRuleManifest("r1", "monitoring")) + if err != nil { + t.Fatal(err) + } + gotMap, _ := got.(map[string]any) + if meta, _ := gotMap["metadata"].(map[string]any); meta["name"] != "r1" { + t.Errorf("name = %v", meta["name"]) + } + // Verify it exists in the fake. + if _, err := dyn.Resource(prometheusRuleGVR).Namespace("monitoring").Get(context.Background(), "r1", metav1.GetOptions{}); err != nil { + t.Errorf("rule not present after create: %v", err) + } +} + +func TestCreateOrReplacePromRule_Update(t *testing.T) { + // Pre-seed an existing rule. + existing := &unstructured.Unstructured{} + existing.SetGroupVersionKind(schema.GroupVersionKind{Group: "monitoring.coreos.com", Version: "v1", Kind: "PrometheusRule"}) + existing.SetName("r1") + existing.SetNamespace("monitoring") + existing.SetResourceVersion("100") + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme(), existing) + + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + updated := newPromRuleManifest("r1", "monitoring") + updated["spec"].(map[string]any)["new_field"] = "yes" + got, err := m.CreateOrReplacePrometheusRule(context.Background(), updated) + if err != nil { + t.Fatal(err) + } + if got == nil { + t.Fatal("expected updated content") + } +} + +func TestCreateOrReplacePromRule_RequiresNameAndNamespace(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + _, err := m.CreateOrReplacePrometheusRule(context.Background(), map[string]any{ + "apiVersion": "monitoring.coreos.com/v1", + "kind": "PrometheusRule", + "spec": map[string]any{}, + }) + if err == nil || !strings.Contains(err.Error(), "name") { + t.Errorf("expected missing-name error, got %v", err) + } +} + +func TestCreateOrReplacePromRule_NoDynamic(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + if _, err := m.CreateOrReplacePrometheusRule(context.Background(), newPromRuleManifest("r", "n")); err == nil { + t.Error("expected error when dynamic not configured") + } +} + +func TestDeletePromRule_RemovesAndIdempotent(t *testing.T) { + existing := &unstructured.Unstructured{} + existing.SetGroupVersionKind(schema.GroupVersionKind{Group: "monitoring.coreos.com", Version: "v1", Kind: "PrometheusRule"}) + existing.SetName("r1") + existing.SetNamespace("n") + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme(), existing) + + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + if err := m.DeletePrometheusRule(context.Background(), "n", "r1"); err != nil { + t.Fatal(err) + } + // Second delete should also succeed (NotFound treated as success). + if err := m.DeletePrometheusRule(context.Background(), "n", "r1"); err != nil { + t.Errorf("delete should be idempotent: %v", err) + } +} + +func TestDeletePromRule_Validates(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dynamicfake.NewSimpleDynamicClient(promRuleScheme())) + if err := m.DeletePrometheusRule(context.Background(), "", "r"); err == nil { + t.Error("missing namespace should error") + } + if err := m.DeletePrometheusRule(context.Background(), "n", ""); err == nil { + t.Error("missing name should error") + } + m2 := New(fake.NewClientset(), "", nil) // no dynamic + if err := m2.DeletePrometheusRule(context.Background(), "n", "r"); err == nil { + t.Error("missing dynamic should error") + } +} + +func TestHandlers_PromRuleActionsRegisteredWhenDynamicSet(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + if _, ok := Handlers(m)["create_or_replace_alert_rule"]; ok { + t.Error("should NOT register create_or_replace_alert_rule without dynamic") + } + m.SetDynamic(dynamicfake.NewSimpleDynamicClient(promRuleScheme())) + hs := Handlers(m) + for _, want := range []string{"create_or_replace_alert_rule", "delete_alert_rule"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing %s after SetDynamic", want) + } + } +} diff --git a/runner/pkg/mutate/drain.go b/runner/pkg/mutate/drain.go new file mode 100644 index 0000000..2ec56d2 --- /dev/null +++ b/runner/pkg/mutate/drain.go @@ -0,0 +1,204 @@ +package mutate + +import ( + "context" + "errors" + "fmt" + "strings" + "sync" + "time" + + corev1 "k8s.io/api/core/v1" + apierrors "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +// DrainOptions controls Drain behavior. Mirrors the relevant kubectl drain +// flags. Defaults match kubectl's defaults. +type DrainOptions struct { + GracePeriodSeconds *int64 // pod TerminationGracePeriodSeconds override + Timeout time.Duration // total budget; default 5m + IgnoreDaemonSets bool // default true (kubectl's default) + DeleteEmptyDirData bool // default false; if false and pod uses emptyDir, drain refuses + Force bool // delete pods without controllers (StaticPods, bare pods) + DisableEviction bool // skip the Eviction API and DELETE pods directly (rare) +} + +// DrainResult is the per-pod outcome. +type DrainResult struct { + Node string `json:"node"` + Pods []DrainPodResult `json:"pods"` + Skipped []DrainPodResult `json:"skipped"` +} + +type DrainPodResult struct { + Name string `json:"name"` + Namespace string `json:"namespace"` + Status string `json:"status"` // "evicted" | "skipped" | "failed" + Error string `json:"error,omitempty"` +} + +// Drain cordons the node and then evicts every eligible pod, waiting for +// termination. Mirrors `kubectl drain` semantics. +// +// Flow: +// 1. Cordon node (skip if already unschedulable) +// 2. List pods on node +// 3. Filter: ignore DaemonSet pods (when IgnoreDaemonSets), refuse if +// emptyDir-using pods present and !DeleteEmptyDirData, etc. +// 4. Evict each in parallel via the Eviction API (respects PDBs) +// 5. Wait for each evicted pod to disappear, up to Timeout +func (m *Mutator) Drain(ctx context.Context, nodeName string, opts DrainOptions) (*DrainResult, error) { + if m.Client == nil { + return nil, errors.New("mutate: client not configured") + } + if nodeName == "" { + return nil, errors.New("mutate: node name required") + } + if opts.Timeout == 0 { + opts.Timeout = 5 * time.Minute + } + + if err := m.Cordon(ctx, nodeName); err != nil { + return nil, fmt.Errorf("cordon: %w", err) + } + + pods, err := m.Client.CoreV1().Pods("").List(ctx, metav1.ListOptions{ + FieldSelector: "spec.nodeName=" + nodeName, + }) + if err != nil { + return nil, fmt.Errorf("list pods on %s: %w", nodeName, err) + } + + res := &DrainResult{Node: nodeName} + type job struct { + pod corev1.Pod + skip string // non-empty = skipped + } + jobs := make([]job, 0, len(pods.Items)) + for _, p := range pods.Items { + if reason := skipReason(&p, opts); reason != "" { + jobs = append(jobs, job{pod: p, skip: reason}) + continue + } + jobs = append(jobs, job{pod: p}) + } + + drainCtx, cancel := context.WithTimeout(ctx, opts.Timeout) + defer cancel() + + var ( + mu sync.Mutex + wg sync.WaitGroup + ) + for _, j := range jobs { + if j.skip != "" { + mu.Lock() + res.Skipped = append(res.Skipped, DrainPodResult{ + Name: j.pod.Name, Namespace: j.pod.Namespace, Status: "skipped", Error: j.skip, + }) + mu.Unlock() + continue + } + wg.Add(1) + go func(p corev1.Pod) { + defer wg.Done() + outcome := m.evictAndWait(drainCtx, p, opts) + mu.Lock() + res.Pods = append(res.Pods, outcome) + mu.Unlock() + }(j.pod) + } + wg.Wait() + return res, nil +} + +// skipReason returns a non-empty string if drain MUST skip this pod, given +// opts. Empty string means "evict it". +func skipReason(p *corev1.Pod, opts DrainOptions) string { + if isMirrorPod(p) { + return "mirror pod" + } + if hasOwner(p, "DaemonSet") { + if opts.IgnoreDaemonSets { + return "daemonset pod" + } + return "" // not skipped, will be evicted (and almost certainly fail PDB) + } + if !opts.Force && !hasController(p) { + return "unmanaged pod (set Force=true to delete)" + } + if !opts.DeleteEmptyDirData { + for _, v := range p.Spec.Volumes { + if v.EmptyDir != nil { + return "uses emptyDir (set DeleteEmptyDirData=true to evict)" + } + } + } + return "" +} + +func isMirrorPod(p *corev1.Pod) bool { + _, ok := p.Annotations["kubernetes.io/config.mirror"] + return ok +} + +func hasOwner(p *corev1.Pod, kind string) bool { + for _, o := range p.OwnerReferences { + if strings.EqualFold(o.Kind, kind) { + return true + } + } + return false +} + +func hasController(p *corev1.Pod) bool { + for _, o := range p.OwnerReferences { + if o.Controller != nil && *o.Controller { + return true + } + } + return false +} + +// evictAndWait evicts a single pod and polls until it's gone or the context +// is cancelled. +func (m *Mutator) evictAndWait(ctx context.Context, pod corev1.Pod, opts DrainOptions) DrainPodResult { + out := DrainPodResult{Name: pod.Name, Namespace: pod.Namespace, Status: "evicted"} + + if opts.DisableEviction { + err := m.Client.CoreV1().Pods(pod.Namespace).Delete(ctx, pod.Name, metav1.DeleteOptions{ + GracePeriodSeconds: opts.GracePeriodSeconds, + }) + if err != nil && !apierrors.IsNotFound(err) { + out.Status = "failed" + out.Error = err.Error() + return out + } + } else { + err := m.EvictPod(ctx, pod.Namespace, pod.Name) + if err != nil && !apierrors.IsNotFound(err) { + out.Status = "failed" + out.Error = err.Error() + return out + } + } + + // Poll until the pod is gone (or recreated with a different UID). + originalUID := pod.UID + ticker := time.NewTicker(500 * time.Millisecond) + defer ticker.Stop() + for { + select { + case <-ctx.Done(): + out.Status = "failed" + out.Error = "timed out waiting for pod removal" + return out + case <-ticker.C: + cur, err := m.Client.CoreV1().Pods(pod.Namespace).Get(ctx, pod.Name, metav1.GetOptions{}) + if apierrors.IsNotFound(err) || (err == nil && cur.UID != originalUID) { + return out + } + } + } +} diff --git a/runner/pkg/mutate/drain_test.go b/runner/pkg/mutate/drain_test.go new file mode 100644 index 0000000..867ff13 --- /dev/null +++ b/runner/pkg/mutate/drain_test.go @@ -0,0 +1,169 @@ +package mutate + +import ( + "context" + "testing" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes/fake" + "k8s.io/utils/ptr" +) + +func podOnNode(name, ns, node string, opts ...func(*corev1.Pod)) *corev1.Pod { + p := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: ns}, + Spec: corev1.PodSpec{NodeName: node}, + } + for _, o := range opts { + o(p) + } + return p +} + +func withOwner(kind, name string, controller bool) func(*corev1.Pod) { + return func(p *corev1.Pod) { + p.OwnerReferences = append(p.OwnerReferences, metav1.OwnerReference{ + Kind: kind, Name: name, Controller: ptr.To(controller), + }) + } +} + +func withMirror() func(*corev1.Pod) { + return func(p *corev1.Pod) { + if p.Annotations == nil { + p.Annotations = map[string]string{} + } + p.Annotations["kubernetes.io/config.mirror"] = "1" + } +} + +func withEmptyDir() func(*corev1.Pod) { + return func(p *corev1.Pod) { + p.Spec.Volumes = append(p.Spec.Volumes, corev1.Volume{ + Name: "scratch", + VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{}}, + }) + } +} + +func TestSkipReason(t *testing.T) { + cases := []struct { + name string + pod *corev1.Pod + opts DrainOptions + want string // empty = NOT skipped + }{ + {"controlled-pod-evicted", podOnNode("a", "n", "node-1", withOwner("ReplicaSet", "rs-1", true)), + DrainOptions{IgnoreDaemonSets: true}, ""}, + {"daemonset-skipped", podOnNode("a", "n", "node-1", withOwner("DaemonSet", "ds-1", true)), + DrainOptions{IgnoreDaemonSets: true}, "daemonset pod"}, + {"daemonset-evicted-when-flag-off", podOnNode("a", "n", "node-1", withOwner("DaemonSet", "ds-1", true)), + DrainOptions{IgnoreDaemonSets: false}, ""}, + {"mirror-skipped", podOnNode("a", "n", "node-1", withMirror()), + DrainOptions{IgnoreDaemonSets: true}, "mirror pod"}, + {"unmanaged-skipped-without-force", podOnNode("a", "n", "node-1"), + DrainOptions{IgnoreDaemonSets: true}, "unmanaged pod (set Force=true to delete)"}, + {"unmanaged-evicted-with-force", podOnNode("a", "n", "node-1"), + DrainOptions{IgnoreDaemonSets: true, Force: true}, ""}, + {"emptydir-skipped-by-default", podOnNode("a", "n", "node-1", withOwner("ReplicaSet", "r", true), withEmptyDir()), + DrainOptions{IgnoreDaemonSets: true}, "uses emptyDir (set DeleteEmptyDirData=true to evict)"}, + {"emptydir-evicted-with-flag", podOnNode("a", "n", "node-1", withOwner("ReplicaSet", "r", true), withEmptyDir()), + DrainOptions{IgnoreDaemonSets: true, DeleteEmptyDirData: true}, ""}, + } + for _, c := range cases { + t.Run(c.name, func(t *testing.T) { + got := skipReason(c.pod, c.opts) + if got != c.want { + t.Errorf("got %q; want %q", got, c.want) + } + }) + } +} + +func TestDrain_RequiresNodeName(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + _, err := m.Drain(context.Background(), "", DrainOptions{}) + if err == nil { + t.Error("expected error for missing node name") + } +} + +func TestDrain_RequiresClient(t *testing.T) { + m := &Mutator{} + _, err := m.Drain(context.Background(), "node-1", DrainOptions{}) + if err == nil { + t.Error("expected error for missing client") + } +} + +func TestDrain_CordonsAndPartitionsPods(t *testing.T) { + cs := fake.NewClientset( + &corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node-1"}}, + // Will be evicted + podOnNode("worker", "shop", "node-1", withOwner("ReplicaSet", "rs", true)), + // Skipped: daemonset + podOnNode("ds-pod", "kube-system", "node-1", withOwner("DaemonSet", "node-exporter", true)), + // Skipped: mirror + podOnNode("mirror", "kube-system", "node-1", withMirror()), + // Skipped: unmanaged (no controller) + podOnNode("orphan", "default", "node-1"), + ) + + // Make eviction return success immediately, then pretend the pod is gone + // for the worker pod. The fake client's default handler errors on + // EvictV1; we tolerate that and rely on the not-found check to short-circuit. + go func() { + time.Sleep(20 * time.Millisecond) + _ = cs.CoreV1().Pods("shop").Delete(context.Background(), "worker", metav1.DeleteOptions{}) + }() + + m := New(cs, "", nil) + res, err := m.Drain(context.Background(), "node-1", DrainOptions{ + IgnoreDaemonSets: true, + Timeout: 3 * time.Second, + }) + if err != nil { + t.Fatal(err) + } + + // Cordon happened. + n, _ := cs.CoreV1().Nodes().Get(context.Background(), "node-1", metav1.GetOptions{}) + if !n.Spec.Unschedulable { + t.Error("node not cordoned") + } + + // Skipped: daemonset, mirror, orphan = 3. + if len(res.Skipped) != 3 { + t.Errorf("skipped = %d; want 3 (got %+v)", len(res.Skipped), res.Skipped) + } + // Evicted: only the worker. + if len(res.Pods) != 1 { + t.Errorf("evicted = %d; want 1 (got %+v)", len(res.Pods), res.Pods) + } +} + +func TestDrain_HandlerParsing(t *testing.T) { + cs := fake.NewClientset(&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node-1"}}) + m := New(cs, "", nil) + hs := Handlers(m) + got, err := hs["drain"](context.Background(), map[string]any{ + "node": "node-1", + "ignore_daemonsets": true, + "delete_emptydir_data": true, + "force": true, + "timeout_seconds": float64(2), + "grace_period_seconds": float64(15), + }) + if err != nil { + t.Fatal(err) + } + r, ok := got.(*DrainResult) + if !ok { + t.Fatalf("got %T; want *DrainResult", got) + } + if r.Node != "node-1" { + t.Errorf("node = %s", r.Node) + } +} diff --git a/runner/pkg/mutate/eviction.go b/runner/pkg/mutate/eviction.go new file mode 100644 index 0000000..1a185f6 --- /dev/null +++ b/runner/pkg/mutate/eviction.go @@ -0,0 +1,17 @@ +package mutate + +import ( + policyv1 "k8s.io/api/policy/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +// asPolicyEviction converts our internal helper type to the typed policy/v1 +// Eviction the client-go EvictV1 method expects. +func asPolicyEviction(e *policyEviction) *policyv1.Eviction { + return &policyv1.Eviction{ + ObjectMeta: metav1.ObjectMeta{ + Name: e.Name, + Namespace: e.Namespace, + }, + } +} diff --git a/runner/pkg/mutate/handlers.go b/runner/pkg/mutate/handlers.go new file mode 100644 index 0000000..7b96797 --- /dev/null +++ b/runner/pkg/mutate/handlers.go @@ -0,0 +1,277 @@ +package mutate + +import ( + "context" + "errors" + "fmt" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires Group-D mutation actions into the dispatch registry. +// Caller MUST add these action names to the auth.Validator's RSA-required +// set, NOT the light-action allowlist (see cmd/agent/main.go). +func Handlers(m *Mutator) map[string]dispatch.Handler { + hs := map[string]dispatch.Handler{ + "delete_pod": wrapErr(m, handleDeletePod), + "delete_job": wrapErr(m, handleDeleteJob), + "cordon": wrapErr(m, handleCordon), + "uncordon": wrapErr(m, handleUncordon), + "rollout_restart": wrapErr(m, handleRolloutRestart), + "drain": wrap(m, handleDrain), + } + if m.AlertManagerURL != "" { + hs["get_silences"] = wrap(m, handleGetSilences) + hs["add_silence"] = wrap(m, handleAddSilence) + hs["delete_silence"] = wrap(m, handleDeleteSilence) + } + if m.dynamic != nil { + hs["create_or_replace_alert_rule"] = wrap(m, handleCreateOrReplacePromRule) + hs["delete_alert_rule"] = wrapErr(m, handleDeletePromRule) + hs["replace_workload"] = wrap(m, handleReplaceWorkload) + } + if m.LokiRulesURL != "" { + hs["create_loki_alert_rule"] = wrap(m, handleCreateLokiRule) + hs["update_loki_alert_rule"] = wrap(m, handleCreateLokiRule) // upsert; same handler + hs["delete_loki_alert_rule"] = wrap(m, handleDeleteLokiRule) + } + return hs +} + +func wrap(m *Mutator, fn func(context.Context, *Mutator, map[string]any) (any, error)) dispatch.Handler { + return func(ctx context.Context, p map[string]any) (any, error) { + return fn(ctx, m, p) + } +} + +// wrapErr is for the K8s mutations that return only error; we wrap the +// success case as {ok: true}. +func wrapErr(m *Mutator, fn func(context.Context, *Mutator, map[string]any) error) dispatch.Handler { + return func(ctx context.Context, p map[string]any) (any, error) { + if err := fn(ctx, m, p); err != nil { + return nil, err + } + return map[string]any{"ok": true}, nil + } +} + +func handleDeletePod(ctx context.Context, m *Mutator, p map[string]any) error { + var grace *int64 + if g, ok := p["grace_period_seconds"].(float64); ok { + v := int64(g) + grace = &v + } + return m.DeletePod(ctx, str(p, "namespace"), str(p, "name"), grace) +} + +func handleDeleteJob(ctx context.Context, m *Mutator, p map[string]any) error { + return m.DeleteJob(ctx, str(p, "namespace"), str(p, "name")) +} + +func handleCordon(ctx context.Context, m *Mutator, p map[string]any) error { + return m.Cordon(ctx, str(p, "node")) +} + +func handleUncordon(ctx context.Context, m *Mutator, p map[string]any) error { + return m.Uncordon(ctx, str(p, "node")) +} + +func handleRolloutRestart(ctx context.Context, m *Mutator, p map[string]any) error { + return m.RolloutRestart(ctx, str(p, "kind"), str(p, "namespace"), str(p, "name")) +} + +func handleDrain(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + opts := DrainOptions{ + IgnoreDaemonSets: getBool(p, "ignore_daemonsets", true), + DeleteEmptyDirData: getBool(p, "delete_emptydir_data", false), + Force: getBool(p, "force", false), + DisableEviction: getBool(p, "disable_eviction", false), + } + if t, ok := p["timeout_seconds"].(float64); ok { + opts.Timeout = time.Duration(t) * time.Second + } + if g, ok := p["grace_period_seconds"].(float64); ok { + v := int64(g) + opts.GracePeriodSeconds = &v + } + return m.Drain(ctx, str(p, "node"), opts) +} + +func getBool(m map[string]any, k string, fallback bool) bool { + if m == nil { + return fallback + } + if v, ok := m[k].(bool); ok { + return v + } + return fallback +} + +func handleCreateOrReplacePromRule(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + rule, ok := p["rule"] + if !ok { + // Allow the caller to pass the manifest at the top level too. + rule = p + } + return m.CreateOrReplacePrometheusRule(ctx, rule) +} + +func handleDeletePromRule(ctx context.Context, m *Mutator, p map[string]any) error { + return m.DeletePrometheusRule(ctx, str(p, "namespace"), str(p, "name")) +} + +// handleReplaceWorkload accepts the body as either: +// - a per-kind field (`deployment`, `daemonset`, `statefulset`, +// `replicaset`, `rollout`, `nodepool`, `ec2nodeclass`) — matches +// the ReplaceNamespacedWorkload params shape verbatim, so a caller +// forwarding ReplaceNamespacedWorkload.dict() works unchanged. +// - a single `body` field with the manifest — for Go-shaped callers +// that don't want per-kind fields. +// - top-level `apiVersion`/`kind`/`metadata`/`spec` — when the params +// map IS the manifest. Useful for kubectl-style invocations. +// +// `kind` / `name` / `namespace` come from explicit params (the legacy +// implementation reads them from the trigger event; for an RPC-style +// invocation they have to be passed in). The success response carries +// the updated object plus a `message` formatted as +// `// updated` markdown so callers that key off the +// message string don't need to special-case. +func handleReplaceWorkload(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + kind := str(p, "kind") + if kind == "" { + return nil, errors.New("replace_workload: kind required (Deployment|DaemonSet|StatefulSet|ReplicaSet|Rollout|NodePool|EC2NodeClass)") + } + name := str(p, "name") + namespace := str(p, "namespace") + body := pickReplaceBody(kind, p) + if body == nil { + return nil, fmt.Errorf("replace_workload: body required (pass under %q, %q, or full manifest at top level)", + perKindBodyField(kind), "body") + } + updated, err := m.ReplaceWorkload(ctx, kind, namespace, name, body) + if err != nil { + return nil, err + } + loc := name + if namespace != "" { + loc = namespace + "/" + name + } + return map[string]any{ + "updated": updated, + "message": fmt.Sprintf("%s/%s updated", kind, loc), + }, nil +} + +// pickReplaceBody walks the three shapes documented on handleReplaceWorkload +// and returns the first non-nil body. Returning `nil` triggers the missing- +// body error path; the caller surfaces a hint pointing at the right field +// name for the kind they sent. +func pickReplaceBody(kind string, p map[string]any) any { + if p == nil { + return nil + } + if v, ok := p[perKindBodyField(kind)]; ok && v != nil { + return v + } + if v, ok := p["body"]; ok && v != nil { + return v + } + // Top-level manifest detection: apiVersion + kind + metadata together + // strongly indicate the params map IS the manifest. We don't accept + // metadata alone (some callers send {kind, name, namespace, metadata: + // {labels: {...}}} which isn't a manifest). + if _, hasAV := p["apiVersion"]; hasAV { + if _, hasKind := p["kind"]; hasKind { + if _, hasMeta := p["metadata"]; hasMeta { + return p + } + } + } + return nil +} + +// perKindBodyField maps each supported kind to the lowercase field name +// ReplaceNamespacedWorkload uses (deployment, daemonset, …). Returns "" +// for unsupported kinds — the upstream kind check catches those before +// we get here. +func perKindBodyField(kind string) string { + switch kind { + case "Deployment": + return "deployment" + case "DaemonSet": + return "daemonset" + case "StatefulSet": + return "statefulset" + case "ReplicaSet": + return "replicaset" + case "Rollout": + return "rollout" + case "NodePool": + return "nodepool" + case "EC2NodeClass": + return "ec2nodeclass" + } + return "" +} + +func handleCreateLokiRule(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + body, _ := p["body"].(string) + resp, err := m.CreateOrReplaceLokiAlertRule(ctx, str(p, "namespace"), body) + if err != nil { + return nil, err + } + return map[string]any{"raw": string(resp)}, nil +} + +func handleDeleteLokiRule(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + resp, err := m.DeleteLokiAlertRule(ctx, str(p, "namespace"), str(p, "group")) + if err != nil { + return nil, err + } + return map[string]any{"raw": string(resp)}, nil +} + +func handleGetSilences(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + var filters []string + if f, ok := p["filters"].([]any); ok { + for _, x := range f { + if s, ok := x.(string); ok { + filters = append(filters, s) + } + } + } + body, err := m.GetSilences(ctx, filters) + if err != nil { + return nil, err + } + return map[string]any{"raw": string(body)}, nil +} + +func handleAddSilence(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + body, err := ParseSilenceBody(p) + if err != nil { + return nil, err + } + resp, err := m.AddSilence(ctx, body) + if err != nil { + return nil, err + } + return map[string]any{"raw": string(resp)}, nil +} + +func handleDeleteSilence(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + resp, err := m.DeleteSilence(ctx, str(p, "id")) + if err != nil { + return nil, err + } + return map[string]any{"raw": string(resp)}, nil +} + +func str(m map[string]any, k string) string { + if m == nil { + return "" + } + s, _ := m[k].(string) + return s +} diff --git a/runner/pkg/mutate/handlers_test.go b/runner/pkg/mutate/handlers_test.go new file mode 100644 index 0000000..a33adca --- /dev/null +++ b/runner/pkg/mutate/handlers_test.go @@ -0,0 +1,164 @@ +package mutate + +import ( + "context" + "net/http" + "net/http/httptest" + "strings" + "testing" + + batchv1 "k8s.io/api/batch/v1" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes/fake" +) + +func TestHandlers_RegistersK8sActionsWithoutAlertManager(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + hs := Handlers(m) + for _, want := range []string{"delete_pod", "delete_job", "cordon", "uncordon", "rollout_restart"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing %q", want) + } + } + for _, notWant := range []string{"get_silences", "add_silence", "delete_silence"} { + if _, ok := hs[notWant]; ok { + t.Errorf("%q should not be registered without AlertManager URL", notWant) + } + } +} + +func TestHandlers_RegistersSilencesWhenAlertManagerSet(t *testing.T) { + m := New(fake.NewClientset(), "http://am.local:9093", nil) + hs := Handlers(m) + for _, want := range []string{"get_silences", "add_silence", "delete_silence"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing %q", want) + } + } +} + +func TestHandleDeletePod_HappyPath(t *testing.T) { + cs := fake.NewClientset(&corev1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "p", Namespace: "n"}}) + m := New(cs, "", nil) + hs := Handlers(m) + got, err := hs["delete_pod"](context.Background(), map[string]any{"namespace": "n", "name": "p"}) + if err != nil { + t.Fatal(err) + } + if r, _ := got.(map[string]any); r["ok"] != true { + t.Errorf("response = %v", got) + } +} + +func TestHandleRolloutRestart_PassesParams(t *testing.T) { + cs := fake.NewClientset() + if err := cs.Tracker().Add(&corev1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "p", Namespace: "n"}}); err != nil { + t.Fatal(err) + } + m := New(cs, "", nil) + hs := Handlers(m) + _, err := hs["rollout_restart"](context.Background(), map[string]any{ + "kind": "deployment", + "namespace": "n", + "name": "ignored", // no real deployment in fake; should error gracefully + }) + if err == nil { + // Fake will return NotFound — the handler should propagate it. + t.Error("expected NotFound error for missing deployment") + } +} + +func TestHandleDeletePod_GracePeriodFromParams(t *testing.T) { + cs := fake.NewClientset(&corev1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "p", Namespace: "n"}}) + m := New(cs, "", nil) + hs := Handlers(m) + _, err := hs["delete_pod"](context.Background(), map[string]any{ + "namespace": "n", + "name": "p", + "grace_period_seconds": float64(30), // JSON numbers decode as float64 + }) + if err != nil { + t.Fatal(err) + } +} + +func TestHandleDeleteJob(t *testing.T) { + cs := fake.NewClientset() + if err := cs.Tracker().Add(&batchv1.Job{ObjectMeta: metav1.ObjectMeta{Name: "j", Namespace: "n"}}); err != nil { + t.Fatal(err) + } + m := New(cs, "", nil) + hs := Handlers(m) + _, err := hs["delete_job"](context.Background(), map[string]any{"namespace": "n", "name": "j"}) + if err != nil { + t.Fatal(err) + } +} + +func TestHandleCordonUncordon(t *testing.T) { + cs := fake.NewClientset(&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node-1"}}) + m := New(cs, "", nil) + hs := Handlers(m) + + if _, err := hs["cordon"](context.Background(), map[string]any{"node": "node-1"}); err != nil { + t.Fatal(err) + } + if _, err := hs["uncordon"](context.Background(), map[string]any{"node": "node-1"}); err != nil { + t.Fatal(err) + } +} + +func TestSilenceHandlers_ProxyAlertManager(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + switch r.Method { + case http.MethodGet: + _, _ = w.Write([]byte(`[{"id":"existing"}]`)) + case http.MethodPost: + _, _ = w.Write([]byte(`{"silenceID":"new-id"}`)) + case http.MethodDelete: + w.WriteHeader(http.StatusOK) + } + })) + defer srv.Close() + + m := New(fake.NewClientset(), srv.URL, nil) + hs := Handlers(m) + + // get_silences with filters + got, err := hs["get_silences"](context.Background(), map[string]any{ + "filters": []any{`alertname="X"`}, + }) + if err != nil { + t.Fatal(err) + } + if r, _ := got.(map[string]any); !strings.Contains(r["raw"].(string), "existing") { + t.Errorf("get_silences = %v", got) + } + + // add_silence with body in nested form + got, err = hs["add_silence"](context.Background(), map[string]any{ + "body": map[string]any{"matchers": []any{}, "comment": "test"}, + }) + if err != nil { + t.Fatal(err) + } + if r, _ := got.(map[string]any); !strings.Contains(r["raw"].(string), "new-id") { + t.Errorf("add_silence = %v", got) + } + + // delete_silence with id + if _, err := hs["delete_silence"](context.Background(), map[string]any{"id": "abc-123"}); err != nil { + t.Fatal(err) + } +} + +func TestEvictPod_BuildsEvictionObject(t *testing.T) { + cs := fake.NewClientset(&corev1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "p", Namespace: "n"}}) + m := New(cs, "", nil) + // fake client supports EvictV1; if it doesn't error, we're good. + if err := m.EvictPod(context.Background(), "n", "p"); err != nil { + // Some fake versions return Method Not Allowed; tolerate. + t.Logf("EvictPod (informational): %v", err) + } +} diff --git a/runner/pkg/mutate/lokirules.go b/runner/pkg/mutate/lokirules.go new file mode 100644 index 0000000..76bd0b3 --- /dev/null +++ b/runner/pkg/mutate/lokirules.go @@ -0,0 +1,81 @@ +package mutate + +import ( + "bytes" + "context" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "strings" + "time" +) + +// Loki rules HTTP API (https://grafana.com/docs/loki/latest/operations/recording-rules/): +// +// POST /loki/api/v1/rules/{namespace} — replace a namespace's rule groups +// GET /loki/api/v1/rules/{namespace}/{group} +// DELETE /loki/api/v1/rules/{namespace}/{group} +// +// These are called via HTTP from the agent. Body for POST is YAML; +// the action_params is forwarded raw. + +// CreateOrReplaceLokiAlertRule POSTs the rule group YAML to Loki. +// +// namespace : Loki tenant/namespace (path param) +// body : raw YAML body (string) +func (m *Mutator) CreateOrReplaceLokiAlertRule(ctx context.Context, namespace, body string) ([]byte, error) { + if m.LokiRulesURL == "" { + return nil, errors.New("mutate: LokiRulesURL not configured") + } + if namespace == "" || body == "" { + return nil, errors.New("mutate: namespace and body required") + } + u := strings.TrimRight(m.LokiRulesURL, "/") + "/loki/api/v1/rules/" + url.PathEscape(namespace) + return m.lokiDo(ctx, http.MethodPost, u, "application/yaml", []byte(body)) +} + +// DeleteLokiAlertRule removes one rule group within a namespace. +func (m *Mutator) DeleteLokiAlertRule(ctx context.Context, namespace, group string) ([]byte, error) { + if m.LokiRulesURL == "" { + return nil, errors.New("mutate: LokiRulesURL not configured") + } + if namespace == "" || group == "" { + return nil, errors.New("mutate: namespace and group required") + } + u := strings.TrimRight(m.LokiRulesURL, "/") + "/loki/api/v1/rules/" + + url.PathEscape(namespace) + "/" + url.PathEscape(group) + return m.lokiDo(ctx, http.MethodDelete, u, "", nil) +} + +func (m *Mutator) lokiDo(ctx context.Context, method, u, contentType string, body []byte) ([]byte, error) { + var rd io.Reader + if body != nil { + rd = bytes.NewReader(body) + } + req, err := http.NewRequestWithContext(ctx, method, u, rd) + if err != nil { + return nil, err + } + if contentType != "" { + req.Header.Set("Content-Type", contentType) + } + for k, v := range m.LokiRulesHeaders { + req.Header.Set(k, v) + } + cli := &http.Client{Timeout: 30 * time.Second} + resp, err := cli.Do(req) + if err != nil { + return nil, fmt.Errorf("loki rules: %w", err) + } + defer func() { _ = resp.Body.Close() }() + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("loki rules HTTP %d: %s", resp.StatusCode, string(respBody)) + } + return respBody, nil +} diff --git a/runner/pkg/mutate/lokirules_test.go b/runner/pkg/mutate/lokirules_test.go new file mode 100644 index 0000000..9f6707a --- /dev/null +++ b/runner/pkg/mutate/lokirules_test.go @@ -0,0 +1,118 @@ +package mutate + +import ( + "context" + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" + + "k8s.io/client-go/kubernetes/fake" +) + +func TestLokiRules_CreateOrReplace_PostsYAML(t *testing.T) { + var path, contentType, body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + contentType = r.Header.Get("Content-Type") + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{}`)) + })) + defer srv.Close() + + m := New(fake.NewClientset(), "", nil) + m.SetLokiRules(srv.URL, nil) + yaml := `groups: +- name: g + rules: + - alert: X + expr: rate({job="nginx"}[1m]) > 5 +` + if _, err := m.CreateOrReplaceLokiAlertRule(context.Background(), "tenant-1", yaml); err != nil { + t.Fatal(err) + } + if path != "/loki/api/v1/rules/tenant-1" { + t.Errorf("path = %q", path) + } + if contentType != "application/yaml" { + t.Errorf("Content-Type = %q", contentType) + } + if !strings.Contains(body, "rate(") { + t.Errorf("body = %s", body) + } +} + +func TestLokiRules_Delete_BuildsPath(t *testing.T) { + var path, method string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + method = r.Method + w.WriteHeader(http.StatusOK) + })) + defer srv.Close() + m := New(fake.NewClientset(), "", nil) + m.SetLokiRules(srv.URL, nil) + if _, err := m.DeleteLokiAlertRule(context.Background(), "tenant-1", "group-1"); err != nil { + t.Fatal(err) + } + if path != "/loki/api/v1/rules/tenant-1/group-1" { + t.Errorf("path = %q", path) + } + if method != http.MethodDelete { + t.Errorf("method = %q", method) + } +} + +func TestLokiRules_NoURL(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + if _, err := m.CreateOrReplaceLokiAlertRule(context.Background(), "n", "body"); err == nil { + t.Error("expected error when LokiRulesURL not configured") + } + if _, err := m.DeleteLokiAlertRule(context.Background(), "n", "g"); err == nil { + t.Error("expected error when LokiRulesURL not configured") + } +} + +func TestLokiRules_Validates(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + m.SetLokiRules("http://x", nil) + if _, err := m.CreateOrReplaceLokiAlertRule(context.Background(), "", "x"); err == nil { + t.Error("missing namespace should error") + } + if _, err := m.CreateOrReplaceLokiAlertRule(context.Background(), "n", ""); err == nil { + t.Error("missing body should error") + } + if _, err := m.DeleteLokiAlertRule(context.Background(), "n", ""); err == nil { + t.Error("missing group should error") + } +} + +func TestLokiRules_PropagatesHTTPErrors(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusBadRequest) + _, _ = w.Write([]byte(`bad rule`)) + })) + defer srv.Close() + m := New(fake.NewClientset(), "", nil) + m.SetLokiRules(srv.URL, nil) + _, err := m.CreateOrReplaceLokiAlertRule(context.Background(), "n", "x") + if err == nil || !strings.Contains(err.Error(), "400") { + t.Errorf("expected HTTP 400 error, got %v", err) + } +} + +func TestLokiRules_HandlersRegistered(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + if _, ok := Handlers(m)["create_loki_alert_rule"]; ok { + t.Error("should NOT register loki rule actions without LokiRulesURL") + } + m.SetLokiRules("http://x", nil) + hs := Handlers(m) + for _, want := range []string{"create_loki_alert_rule", "update_loki_alert_rule", "delete_loki_alert_rule"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing %s", want) + } + } +} diff --git a/runner/pkg/mutate/mutate.go b/runner/pkg/mutate/mutate.go new file mode 100644 index 0000000..63bfc72 --- /dev/null +++ b/runner/pkg/mutate/mutate.go @@ -0,0 +1,176 @@ +// Package mutate implements the mutating Group-D actions: delete_pod, +// delete_job, cordon, uncordon, rollout_restart, and AlertManager silence +// CRUD. Each one mutates customer cluster state; all of them MUST be served +// behind RSA partial-keys auth in production (NOT light-action). +// +// Out-of-scope for v1 — bring in follow-up commits as they're needed: +// - drain : evict-pods + wait, ~150 LoC orchestration +// - replace_workload, create_workload : dynamic client + manifest validation +// - create_pvc_snapshot, rightsize_pvc : PVC-resize subresource +// - PrometheusRule/LokiRule CRUD : CRD manipulation, prometheus-operator +package mutate + +import ( + "context" + "errors" + "fmt" + "strings" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/types" + "k8s.io/client-go/dynamic" + "k8s.io/client-go/kubernetes" +) + +// Mutator wraps the typed client + an optional AlertManager URL for silences. +type Mutator struct { + Client kubernetes.Interface + AlertManagerURL string + AlertManagerHeaders map[string]string + + // LokiRulesURL: HTTP base URL for Loki rules CRUD (Loki's own API, + // separate from the LogQL query URL — usually Loki ruler component). + // Empty disables loki_*_alert_rule actions. + LokiRulesURL string + LokiRulesHeaders map[string]string + + // dynamic is the dynamic client used for CRD operations like + // PrometheusRule. Set via SetDynamic. + dynamic dynamic.Interface +} + +func New(cs kubernetes.Interface, alertManagerURL string, headers map[string]string) *Mutator { + return &Mutator{ + Client: cs, + AlertManagerURL: alertManagerURL, + AlertManagerHeaders: headers, + } +} + +// SetLokiRules wires the Loki rules HTTP endpoint. Optional. +func (m *Mutator) SetLokiRules(url string, headers map[string]string) { + m.LokiRulesURL = url + m.LokiRulesHeaders = headers +} + +// DeletePod removes one pod. namespace + name required. +func (m *Mutator) DeletePod(ctx context.Context, namespace, name string, gracePeriodSec *int64) error { + if m.Client == nil { + return errors.New("mutate: client not configured") + } + if namespace == "" || name == "" { + return errors.New("mutate: namespace and name required") + } + opts := metav1.DeleteOptions{} + if gracePeriodSec != nil { + opts.GracePeriodSeconds = gracePeriodSec + } + return m.Client.CoreV1().Pods(namespace).Delete(ctx, name, opts) +} + +// DeleteJob removes one Job (and its pods, propagation=Background by default). +func (m *Mutator) DeleteJob(ctx context.Context, namespace, name string) error { + if m.Client == nil { + return errors.New("mutate: client not configured") + } + if namespace == "" || name == "" { + return errors.New("mutate: namespace and name required") + } + prop := metav1.DeletePropagationBackground + return m.Client.BatchV1().Jobs(namespace).Delete(ctx, name, metav1.DeleteOptions{ + PropagationPolicy: &prop, + }) +} + +// Cordon marks the node unschedulable. Existing pods stay (use drain to evict). +func (m *Mutator) Cordon(ctx context.Context, nodeName string) error { + return m.setUnschedulable(ctx, nodeName, true) +} + +// Uncordon clears the unschedulable flag. +func (m *Mutator) Uncordon(ctx context.Context, nodeName string) error { + return m.setUnschedulable(ctx, nodeName, false) +} + +func (m *Mutator) setUnschedulable(ctx context.Context, nodeName string, unschedulable bool) error { + if m.Client == nil { + return errors.New("mutate: client not configured") + } + if nodeName == "" { + return errors.New("mutate: node name required") + } + patch := fmt.Sprintf(`{"spec":{"unschedulable":%t}}`, unschedulable) + _, err := m.Client.CoreV1().Nodes().Patch(ctx, nodeName, types.StrategicMergePatchType, []byte(patch), metav1.PatchOptions{}) + return err +} + +// RolloutRestart triggers a rolling restart by patching the pod-template +// `kubectl.kubernetes.io/restartedAt` annotation. Same mechanism kubectl uses. +// kind is one of: deployment, statefulset, daemonset. +func (m *Mutator) RolloutRestart(ctx context.Context, kind, namespace, name string) error { + if m.Client == nil { + return errors.New("mutate: client not configured") + } + if kind == "" || namespace == "" || name == "" { + return errors.New("mutate: kind, namespace, name required") + } + patch := fmt.Sprintf( + `{"spec":{"template":{"metadata":{"annotations":{"kubectl.kubernetes.io/restartedAt":%q}}}}}`, + time.Now().UTC().Format(time.RFC3339), + ) + switch strings.ToLower(kind) { + case "deployment": + _, err := m.Client.AppsV1().Deployments(namespace).Patch(ctx, name, types.StrategicMergePatchType, []byte(patch), metav1.PatchOptions{}) + return err + case "statefulset": + _, err := m.Client.AppsV1().StatefulSets(namespace).Patch(ctx, name, types.StrategicMergePatchType, []byte(patch), metav1.PatchOptions{}) + return err + case "daemonset": + _, err := m.Client.AppsV1().DaemonSets(namespace).Patch(ctx, name, types.StrategicMergePatchType, []byte(patch), metav1.PatchOptions{}) + return err + default: + return fmt.Errorf("mutate: unsupported kind %q (deployment|statefulset|daemonset)", kind) + } +} + +// EvictPod uses the Eviction API which respects PodDisruptionBudgets. +// Used by Drain (not yet implemented) and as a building block for other workflows. +func (m *Mutator) EvictPod(ctx context.Context, namespace, name string) error { + if m.Client == nil { + return errors.New("mutate: client not configured") + } + eviction := &policyEviction{ + ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: namespace}, + } + return m.Client.CoreV1().Pods(namespace).EvictV1(ctx, asPolicyEviction(eviction)) +} + +// Helper types let us avoid importing policy/v1 at file top level (keeps +// the import set minimal in the common case). +type policyEviction struct { + metav1.ObjectMeta +} + +// PodReadyDeadline polls the pod's Ready condition until ready or deadline. +// Used internally by RolloutRestart smoke tests; exposed for callers that +// want to wait after a mutation. +func (m *Mutator) PodReadyDeadline(ctx context.Context, namespace, name string, deadline time.Time) error { + for time.Now().Before(deadline) { + pod, err := m.Client.CoreV1().Pods(namespace).Get(ctx, name, metav1.GetOptions{}) + if err == nil { + for _, c := range pod.Status.Conditions { + if c.Type == corev1.PodReady && c.Status == corev1.ConditionTrue { + return nil + } + } + } + select { + case <-ctx.Done(): + return ctx.Err() + case <-time.After(500 * time.Millisecond): + } + } + return errors.New("pod not ready before deadline") +} diff --git a/runner/pkg/mutate/mutate_test.go b/runner/pkg/mutate/mutate_test.go new file mode 100644 index 0000000..d4663cf --- /dev/null +++ b/runner/pkg/mutate/mutate_test.go @@ -0,0 +1,169 @@ +package mutate + +import ( + "context" + "strings" + "testing" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/apimachinery/pkg/runtime/schema" + clienttesting "k8s.io/client-go/testing" + + appsv1 "k8s.io/api/apps/v1" + batchv1 "k8s.io/api/batch/v1" + "k8s.io/client-go/kubernetes/fake" +) + +func newPod(name, ns string) *corev1.Pod { + return &corev1.Pod{ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: ns}} +} + +func newJob(name, ns string) *batchv1.Job { + return &batchv1.Job{ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: ns}} +} + +func newNode(name string) *corev1.Node { + return &corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: name}} +} + +func newDeployment(name, ns string) *appsv1.Deployment { + return &appsv1.Deployment{ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: ns}} +} + +func TestNew_NoClient(t *testing.T) { + m := &Mutator{} + if err := m.DeletePod(context.Background(), "n", "p", nil); err == nil { + t.Error("expected error when client unset") + } +} + +func TestDeletePod_RemovesPodFromCluster(t *testing.T) { + cs := fake.NewClientset(newPod("frontend", "shop")) + m := New(cs, "", nil) + if err := m.DeletePod(context.Background(), "shop", "frontend", nil); err != nil { + t.Fatal(err) + } + _, err := cs.CoreV1().Pods("shop").Get(context.Background(), "frontend", metav1.GetOptions{}) + if err == nil { + t.Error("pod still present after DeletePod") + } +} + +func TestDeletePod_RequiresNamespaceAndName(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + if err := m.DeletePod(context.Background(), "", "p", nil); err == nil { + t.Error("missing namespace should error") + } + if err := m.DeletePod(context.Background(), "n", "", nil); err == nil { + t.Error("missing name should error") + } +} + +func TestDeleteJob_PassesBackgroundPropagation(t *testing.T) { + cs := fake.NewClientset(newJob("j1", "ns")) + var capturedDeleteOpts metav1.DeleteOptions + cs.PrependReactor("delete", "jobs", func(a clienttesting.Action) (bool, runtime.Object, error) { + da := a.(clienttesting.DeleteActionImpl) + capturedDeleteOpts = da.DeleteOptions + return false, nil, nil // fall through to default reactor + }) + + m := New(cs, "", nil) + if err := m.DeleteJob(context.Background(), "ns", "j1"); err != nil { + t.Fatal(err) + } + if capturedDeleteOpts.PropagationPolicy == nil || *capturedDeleteOpts.PropagationPolicy != metav1.DeletePropagationBackground { + t.Errorf("PropagationPolicy = %v; want Background", capturedDeleteOpts.PropagationPolicy) + } +} + +func TestCordonUncordon_TogglesUnschedulable(t *testing.T) { + cs := fake.NewClientset(newNode("node-1")) + m := New(cs, "", nil) + + if err := m.Cordon(context.Background(), "node-1"); err != nil { + t.Fatal(err) + } + n, _ := cs.CoreV1().Nodes().Get(context.Background(), "node-1", metav1.GetOptions{}) + if !n.Spec.Unschedulable { + t.Error("Cordon: Unschedulable still false") + } + + if err := m.Uncordon(context.Background(), "node-1"); err != nil { + t.Fatal(err) + } + n, _ = cs.CoreV1().Nodes().Get(context.Background(), "node-1", metav1.GetOptions{}) + if n.Spec.Unschedulable { + t.Error("Uncordon: Unschedulable still true") + } +} + +func TestCordon_RequiresNodeName(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + if err := m.Cordon(context.Background(), ""); err == nil { + t.Error("expected error for missing node name") + } +} + +func TestRolloutRestart_PatchesAnnotation(t *testing.T) { + cs := fake.NewClientset(newDeployment("frontend", "shop")) + + var patchedAt string + cs.PrependReactor("patch", "deployments", func(a clienttesting.Action) (bool, runtime.Object, error) { + pa := a.(clienttesting.PatchActionImpl) + patchedAt = string(pa.Patch) + return false, nil, nil + }) + + m := New(cs, "", nil) + if err := m.RolloutRestart(context.Background(), "deployment", "shop", "frontend"); err != nil { + t.Fatal(err) + } + if !strings.Contains(patchedAt, "kubectl.kubernetes.io/restartedAt") { + t.Errorf("patch missing restartedAt annotation: %s", patchedAt) + } +} + +func TestRolloutRestart_StatefulSetAndDaemonSet(t *testing.T) { + cs := fake.NewClientset() + if err := cs.Tracker().Add(&appsv1.StatefulSet{ObjectMeta: metav1.ObjectMeta{Name: "ss", Namespace: "ns"}}); err != nil { + t.Fatal(err) + } + if err := cs.Tracker().Add(&appsv1.DaemonSet{ObjectMeta: metav1.ObjectMeta{Name: "ds", Namespace: "ns"}}); err != nil { + t.Fatal(err) + } + m := New(cs, "", nil) + + if err := m.RolloutRestart(context.Background(), "statefulset", "ns", "ss"); err != nil { + t.Errorf("statefulset: %v", err) + } + if err := m.RolloutRestart(context.Background(), "daemonset", "ns", "ds"); err != nil { + t.Errorf("daemonset: %v", err) + } +} + +func TestRolloutRestart_RejectsUnknownKind(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + err := m.RolloutRestart(context.Background(), "replicaset", "ns", "rs") + if err == nil || !strings.Contains(err.Error(), "unsupported kind") { + t.Errorf("expected unsupported-kind error, got %v", err) + } +} + +func TestRolloutRestart_RequiresAllFields(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + if err := m.RolloutRestart(context.Background(), "", "ns", "n"); err == nil { + t.Error("missing kind should error") + } + if err := m.RolloutRestart(context.Background(), "deployment", "", "n"); err == nil { + t.Error("missing namespace should error") + } + if err := m.RolloutRestart(context.Background(), "deployment", "ns", ""); err == nil { + t.Error("missing name should error") + } +} + +// _ = schema is just to keep imports tidy across test files. +var _ = schema.GroupVersionResource{} diff --git a/runner/pkg/mutate/silence.go b/runner/pkg/mutate/silence.go new file mode 100644 index 0000000..3cd194e --- /dev/null +++ b/runner/pkg/mutate/silence.go @@ -0,0 +1,108 @@ +package mutate + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "strings" + "time" +) + +// AlertManager silence CRUD. The agent only proxies HTTP requests; it does +// not parse silence payloads. Caller passes through arbitrary JSON. +// +// Endpoints (AlertManager API v2): +// GET /api/v2/silences — list +// POST /api/v2/silences — create or update +// DELETE /api/v2/silence/{id} — delete + +// GetSilences returns the raw AlertManager silences list as JSON bytes. +// Optional filter strings get passed through as `filter=...` query params. +func (m *Mutator) GetSilences(ctx context.Context, filters []string) ([]byte, error) { + if m.AlertManagerURL == "" { + return nil, errors.New("mutate: AlertManager URL not configured") + } + q := url.Values{} + for _, f := range filters { + q.Add("filter", f) + } + u := strings.TrimRight(m.AlertManagerURL, "/") + "/api/v2/silences" + if len(q) > 0 { + u += "?" + q.Encode() + } + return m.amDo(ctx, http.MethodGet, u, nil) +} + +// AddSilence creates a new silence. Body is the AlertManager Silence JSON +// object — we don't validate the schema, just forward. +func (m *Mutator) AddSilence(ctx context.Context, body []byte) ([]byte, error) { + if m.AlertManagerURL == "" { + return nil, errors.New("mutate: AlertManager URL not configured") + } + if len(body) == 0 { + return nil, errors.New("mutate: silence body required") + } + u := strings.TrimRight(m.AlertManagerURL, "/") + "/api/v2/silences" + return m.amDo(ctx, http.MethodPost, u, body) +} + +// DeleteSilence cancels a silence by ID. +func (m *Mutator) DeleteSilence(ctx context.Context, id string) ([]byte, error) { + if m.AlertManagerURL == "" { + return nil, errors.New("mutate: AlertManager URL not configured") + } + if id == "" { + return nil, errors.New("mutate: silence id required") + } + u := strings.TrimRight(m.AlertManagerURL, "/") + "/api/v2/silence/" + url.PathEscape(id) + return m.amDo(ctx, http.MethodDelete, u, nil) +} + +func (m *Mutator) amDo(ctx context.Context, method, u string, body []byte) ([]byte, error) { + var rd io.Reader + if body != nil { + rd = bytes.NewReader(body) + } + req, err := http.NewRequestWithContext(ctx, method, u, rd) + if err != nil { + return nil, err + } + if body != nil { + req.Header.Set("Content-Type", "application/json") + } + for k, v := range m.AlertManagerHeaders { + req.Header.Set(k, v) + } + + client := &http.Client{Timeout: 30 * time.Second} + resp, err := client.Do(req) + if err != nil { + return nil, fmt.Errorf("alertmanager %s %s: %w", method, u, err) + } + defer func() { _ = resp.Body.Close() }() + + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("alertmanager HTTP %d: %s", resp.StatusCode, string(respBody)) + } + return respBody, nil +} + +// ParseSilenceBody is a small helper for handlers that receive the silence +// payload as a generic map (action_params). It re-marshals to JSON so the +// proxy stays format-stable. +func ParseSilenceBody(p map[string]any) ([]byte, error) { + if body, ok := p["body"]; ok { + return json.Marshal(body) + } + // Some callers pass the silence fields directly at the top level. + return json.Marshal(p) +} diff --git a/runner/pkg/mutate/silence_test.go b/runner/pkg/mutate/silence_test.go new file mode 100644 index 0000000..fc6a673 --- /dev/null +++ b/runner/pkg/mutate/silence_test.go @@ -0,0 +1,144 @@ +package mutate + +import ( + "context" + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" +) + +func TestGetSilences_ProxiesRequest(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/api/v2/silences" { + t.Errorf("path = %q", r.URL.Path) + } + filters := r.URL.Query()["filter"] + if len(filters) != 2 || filters[0] != `alertname="X"` || filters[1] != "severity=warning" { + t.Errorf("filters = %v", filters) + } + _, _ = w.Write([]byte(`[{"id":"s1"}]`)) + })) + defer srv.Close() + + m := New(nil, srv.URL, map[string]string{"X-Tenant": "t1"}) + got, err := m.GetSilences(context.Background(), []string{`alertname="X"`, "severity=warning"}) + if err != nil { + t.Fatal(err) + } + if !strings.Contains(string(got), "s1") { + t.Errorf("body = %s", got) + } +} + +func TestGetSilences_NoURL(t *testing.T) { + m := New(nil, "", nil) + if _, err := m.GetSilences(context.Background(), nil); err == nil { + t.Error("expected error when URL not configured") + } +} + +func TestAddSilence_PostsBody(t *testing.T) { + var got string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.Method != http.MethodPost { + t.Errorf("method = %s", r.Method) + } + body, _ := io.ReadAll(r.Body) + got = string(body) + _, _ = w.Write([]byte(`{"silenceID":"abc"}`)) + })) + defer srv.Close() + + m := New(nil, srv.URL, nil) + resp, err := m.AddSilence(context.Background(), []byte(`{"matchers":[]}`)) + if err != nil { + t.Fatal(err) + } + if got != `{"matchers":[]}` { + t.Errorf("body forwarded = %s", got) + } + if !strings.Contains(string(resp), "abc") { + t.Errorf("resp = %s", resp) + } +} + +func TestAddSilence_RequiresBody(t *testing.T) { + m := New(nil, "http://am", nil) + if _, err := m.AddSilence(context.Background(), nil); err == nil { + t.Error("expected error for missing body") + } +} + +func TestDeleteSilence_BuildsCorrectPath(t *testing.T) { + var path string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.EscapedPath() + w.WriteHeader(http.StatusOK) + })) + defer srv.Close() + + m := New(nil, srv.URL, nil) + if _, err := m.DeleteSilence(context.Background(), "silence-id-123"); err != nil { + t.Fatal(err) + } + if path != "/api/v2/silence/silence-id-123" { + t.Errorf("path = %q", path) + } +} + +func TestDeleteSilence_RequiresID(t *testing.T) { + m := New(nil, "http://am", nil) + if _, err := m.DeleteSilence(context.Background(), ""); err == nil { + t.Error("expected error for missing id") + } +} + +func TestSilences_PropagatesHTTPErrors(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusInternalServerError) + _, _ = w.Write([]byte("internal err")) + })) + defer srv.Close() + + m := New(nil, srv.URL, nil) + if _, err := m.GetSilences(context.Background(), nil); err == nil { + t.Error("expected error for HTTP 500") + } +} + +func TestSilences_SendsHeaders(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if got := r.Header.Get("X-Tenant"); got != "t1" { + t.Errorf("X-Tenant = %q", got) + } + _, _ = w.Write([]byte(`[]`)) + })) + defer srv.Close() + + m := New(nil, srv.URL, map[string]string{"X-Tenant": "t1"}) + if _, err := m.GetSilences(context.Background(), nil); err != nil { + t.Fatal(err) + } +} + +func TestParseSilenceBody_NestedAndFlat(t *testing.T) { + flat := map[string]any{"comment": "test", "matchers": []any{}} + got, err := ParseSilenceBody(flat) + if err != nil { + t.Fatal(err) + } + if !strings.Contains(string(got), `"comment":"test"`) { + t.Errorf("flat parse = %s", got) + } + + nested := map[string]any{"body": map[string]any{"comment": "nested"}} + got, err = ParseSilenceBody(nested) + if err != nil { + t.Fatal(err) + } + if !strings.Contains(string(got), `"comment":"nested"`) { + t.Errorf("nested parse = %s", got) + } +} diff --git a/runner/pkg/mutate/workload.go b/runner/pkg/mutate/workload.go new file mode 100644 index 0000000..3d5be05 --- /dev/null +++ b/runner/pkg/mutate/workload.go @@ -0,0 +1,179 @@ +// Package mutate implements the K8s mutation handlers: +// replace_workload + delete_workload + create_workload. The agent uses +// one dynamic-client code path per kind — the dynamic client handles +// both built-in workloads (AppsV1) and CRDs (Argo Rollouts, Karpenter) +// behind the same interface, so the per-kind switch is just a GVR + +// scope (namespaced vs cluster) lookup. +package mutate + +import ( + "context" + "encoding/json" + "errors" + "fmt" + + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" + "k8s.io/apimachinery/pkg/runtime/schema" +) + +// workloadKindEntry maps the user-facing kind string to (GVR, namespaced). +type workloadKindEntry struct { + gvr schema.GroupVersionResource + namespaced bool + // expectedKind is what the resulting unstructured object's `kind` field + // will look like once the apiserver echoes it back. Used for the + // success markdown formatted as `// updated`. + expectedKind string +} + +// supportedWorkloadKinds enumerates the kinds replace_workload / delete_workload +// understand. Any kind not in this map gets the "RESOURCE_NOT_SUPPORTED" +// error. +var supportedWorkloadKinds = map[string]workloadKindEntry{ + "Deployment": { + gvr: schema.GroupVersionResource{Group: "apps", Version: "v1", Resource: "deployments"}, + namespaced: true, + expectedKind: "Deployment", + }, + "DaemonSet": { + gvr: schema.GroupVersionResource{Group: "apps", Version: "v1", Resource: "daemonsets"}, + namespaced: true, + expectedKind: "DaemonSet", + }, + "StatefulSet": { + gvr: schema.GroupVersionResource{Group: "apps", Version: "v1", Resource: "statefulsets"}, + namespaced: true, + expectedKind: "StatefulSet", + }, + // Note: the legacy replace_workload dispatched ReplicaSet to + // `replace_namespaced_stateful_set` — a wrong API call for the kind. + // We use the correct ReplicaSet replace endpoint. Tests cover the + // right behaviour explicitly so a future cross-port doesn't + // reintroduce the typo. + "ReplicaSet": { + gvr: schema.GroupVersionResource{Group: "apps", Version: "v1", Resource: "replicasets"}, + namespaced: true, + expectedKind: "ReplicaSet", + }, + // Argo Rollouts CRD — namespace-scoped. + "Rollout": { + gvr: schema.GroupVersionResource{Group: "argoproj.io", Version: "v1alpha1", Resource: "rollouts"}, + namespaced: true, + expectedKind: "Rollout", + }, + // Karpenter NodePool CRD — cluster-scoped. The Karpenter API moved + // from `karpenter.sh/v1alpha5` → `karpenter.sh/v1beta1` → `karpenter.sh/v1` + // across versions; v1 is the current GA group as of Karpenter 1.x and + // the current target for the NodePool model. + "NodePool": { + gvr: schema.GroupVersionResource{Group: "karpenter.sh", Version: "v1", Resource: "nodepools"}, + namespaced: false, + expectedKind: "NodePool", + }, + // Karpenter EC2NodeClass CRD — cluster-scoped, AWS-specific. + "EC2NodeClass": { + gvr: schema.GroupVersionResource{Group: "karpenter.k8s.aws", Version: "v1", Resource: "ec2nodeclasses"}, + namespaced: false, + expectedKind: "EC2NodeClass", + }, +} + +// ReplaceWorkload runs a Replace (full-spec PUT) against the named +// resource using the dynamic client. The body is the new manifest the +// caller wants applied — it must be a complete spec (Replace is not a +// patch). On success the apiserver returns the updated object; +// ReplaceWorkload returns its UnstructuredContent so the dispatch +// handler can render a success Finding. +// +// The legacy playbook special-cases each kind with a different +// typed-client call; the dynamic client unifies them. ResourceVersion +// is preserved from the existing object so concurrent edits get a 409 +// Conflict (same behaviour the typed client gets implicitly). +func (m *Mutator) ReplaceWorkload(ctx context.Context, kind, namespace, name string, body any) (any, error) { + if m.dynamic == nil { + return nil, errors.New("mutate: dynamic client not configured") + } + if name == "" { + return nil, errors.New("mutate: name required") + } + entry, ok := supportedWorkloadKinds[kind] + if !ok { + return nil, fmt.Errorf("mutate: replace_workload not supported for kind %q", kind) + } + if entry.namespaced && namespace == "" { + return nil, fmt.Errorf("mutate: namespace required for %s", kind) + } + + u, err := unstructuredFromBody(body) + if err != nil { + return nil, err + } + // Force kind/apiVersion + name/namespace so a body without them still + // hits the right URL (kind is derived from the trigger event, not + // from the body). + u.SetGroupVersionKind(schema.GroupVersionKind{ + Group: entry.gvr.Group, + Version: entry.gvr.Version, + Kind: entry.expectedKind, + }) + u.SetName(name) + if entry.namespaced { + u.SetNamespace(namespace) + } + + ri := m.dynamic.Resource(entry.gvr) + var existing *unstructured.Unstructured + if entry.namespaced { + existing, err = ri.Namespace(namespace).Get(ctx, name, metav1.GetOptions{}) + } else { + existing, err = ri.Get(ctx, name, metav1.GetOptions{}) + } + if err != nil { + return nil, fmt.Errorf("mutate: get existing %s/%s: %w", kind, name, err) + } + // Carry the existing ResourceVersion forward so the apiserver accepts + // the update; without this every replace racing with a controller + // reconcile would 409. The legacy typed client got this for free by + // reading the resource into the action handler first. + u.SetResourceVersion(existing.GetResourceVersion()) + + var updated *unstructured.Unstructured + if entry.namespaced { + updated, err = ri.Namespace(namespace).Update(ctx, u, metav1.UpdateOptions{}) + } else { + updated, err = ri.Update(ctx, u, metav1.UpdateOptions{}) + } + if err != nil { + return nil, fmt.Errorf("mutate: replace %s/%s: %w", kind, name, err) + } + return updated.UnstructuredContent(), nil +} + +// unstructuredFromBody normalises whatever the caller passed (typed +// struct, map[string]any, JSON bytes/string) into an unstructured object +// the dynamic client accepts. Returns an error when the body can't be +// JSON-encoded into a valid Kubernetes object shape. +func unstructuredFromBody(body any) (*unstructured.Unstructured, error) { + if body == nil { + return nil, errors.New("mutate: replace body required") + } + var raw []byte + switch v := body.(type) { + case []byte: + raw = v + case string: + raw = []byte(v) + default: + b, err := json.Marshal(v) + if err != nil { + return nil, fmt.Errorf("marshal body: %w", err) + } + raw = b + } + u := &unstructured.Unstructured{} + if err := json.Unmarshal(raw, &u.Object); err != nil { + return nil, fmt.Errorf("unmarshal body: %w", err) + } + return u, nil +} diff --git a/runner/pkg/mutate/workload_test.go b/runner/pkg/mutate/workload_test.go new file mode 100644 index 0000000..04bc2b3 --- /dev/null +++ b/runner/pkg/mutate/workload_test.go @@ -0,0 +1,374 @@ +package mutate + +import ( + "context" + "strings" + "testing" + + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/apimachinery/pkg/runtime/schema" + dynamicfake "k8s.io/client-go/dynamic/fake" + "k8s.io/client-go/kubernetes/fake" +) + +// workloadScheme registers every kind ReplaceWorkload accepts so the +// dynamic fake recognises the GVRs. The fake silently fails when a GVR +// isn't registered — tests would 404 the Get call before any Replace +// logic runs. +func workloadScheme() *runtime.Scheme { + s := runtime.NewScheme() + for kind, entry := range supportedWorkloadKinds { + gvr := entry.gvr + s.AddKnownTypeWithName( + schema.GroupVersionKind{Group: gvr.Group, Version: gvr.Version, Kind: kind}, + &unstructured.Unstructured{}, + ) + s.AddKnownTypeWithName( + schema.GroupVersionKind{Group: gvr.Group, Version: gvr.Version, Kind: kind + "List"}, + &unstructured.UnstructuredList{}, + ) + } + return s +} + +func newWorkloadManifest(apiVersion, kind, name, namespace string, extraSpec map[string]any) map[string]any { + spec := map[string]any{"replicas": int64(2)} + for k, v := range extraSpec { + spec[k] = v + } + meta := map[string]any{"name": name} + if namespace != "" { + meta["namespace"] = namespace + } + return map[string]any{ + "apiVersion": apiVersion, + "kind": kind, + "metadata": meta, + "spec": spec, + } +} + +// seedExisting pre-seeds the dynamic fake with an existing object so +// ReplaceWorkload's Get-then-Update path has something to read for the +// ResourceVersion preservation step. +func seedExisting(apiVersion, kind, name, namespace, rv string) *unstructured.Unstructured { + u := &unstructured.Unstructured{} + parts := strings.SplitN(apiVersion, "/", 2) + group, version := "", parts[0] + if len(parts) == 2 { + group, version = parts[0], parts[1] + } + u.SetGroupVersionKind(schema.GroupVersionKind{Group: group, Version: version, Kind: kind}) + u.SetName(name) + if namespace != "" { + u.SetNamespace(namespace) + } + u.SetResourceVersion(rv) + return u +} + +// ---------- happy path per kind ---------- + +func TestReplaceWorkload_Deployment(t *testing.T) { + existing := seedExisting("apps/v1", "Deployment", "web", "shop", "100") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + body := newWorkloadManifest("apps/v1", "Deployment", "web", "shop", map[string]any{"replicas": int64(5)}) + got, err := m.ReplaceWorkload(context.Background(), "Deployment", "shop", "web", body) + if err != nil { + t.Fatal(err) + } + gotMap := got.(map[string]any) + spec := gotMap["spec"].(map[string]any) + // Round-trip through encoding/json normalises numbers to float64 + // — that's what unstructured.Unstructured carries, and what the fake + // echoes back. Compare as float64 to avoid the int64-vs-float64 trap. + if spec["replicas"] != float64(5) { + t.Errorf("replicas = %v (%T); want 5", spec["replicas"], spec["replicas"]) + } + // Apiserver echoes ResourceVersion through; the fake doesn't bump it + // but does preserve it from the body, so we should see "100". + if rv := gotMap["metadata"].(map[string]any)["resourceVersion"]; rv != "100" { + t.Errorf("resourceVersion = %v; want 100 (preserved from existing)", rv) + } +} + +func TestReplaceWorkload_DaemonSet(t *testing.T) { + existing := seedExisting("apps/v1", "DaemonSet", "node-exporter", "monitoring", "20") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + body := newWorkloadManifest("apps/v1", "DaemonSet", "node-exporter", "monitoring", nil) + if _, err := m.ReplaceWorkload(context.Background(), "DaemonSet", "monitoring", "node-exporter", body); err != nil { + t.Fatal(err) + } +} + +func TestReplaceWorkload_StatefulSet(t *testing.T) { + existing := seedExisting("apps/v1", "StatefulSet", "db", "data", "5") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + body := newWorkloadManifest("apps/v1", "StatefulSet", "db", "data", nil) + if _, err := m.ReplaceWorkload(context.Background(), "StatefulSet", "data", "db", body); err != nil { + t.Fatal(err) + } +} + +// TestReplaceWorkload_ReplicaSet_NotConfusedWithStatefulSet locks the +// fix for the legacy bug: the original implementation called +// `replace_namespaced_stateful_set` for ReplicaSet, which routes +// updates to the wrong endpoint. We use the right behaviour and pin +// it with a test so a future cross-port doesn't reintroduce it. +func TestReplaceWorkload_ReplicaSet_NotConfusedWithStatefulSet(t *testing.T) { + rs := seedExisting("apps/v1", "ReplicaSet", "web-rs", "shop", "1") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), rs) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + body := newWorkloadManifest("apps/v1", "ReplicaSet", "web-rs", "shop", nil) + if _, err := m.ReplaceWorkload(context.Background(), "ReplicaSet", "shop", "web-rs", body); err != nil { + t.Fatal(err) + } + // Verify the replica-sets URL was hit, not statefulsets — the easiest + // way is to confirm the existing object got updated under the rs GVR. + rsGVR := supportedWorkloadKinds["ReplicaSet"].gvr + if _, err := dyn.Resource(rsGVR).Namespace("shop").Get(context.Background(), "web-rs", metav1.GetOptions{}); err != nil { + t.Errorf("ReplicaSet not present at expected GVR after replace: %v", err) + } +} + +func TestReplaceWorkload_Rollout_Namespaced(t *testing.T) { + existing := seedExisting("argoproj.io/v1alpha1", "Rollout", "canary", "shop", "7") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + body := newWorkloadManifest("argoproj.io/v1alpha1", "Rollout", "canary", "shop", nil) + if _, err := m.ReplaceWorkload(context.Background(), "Rollout", "shop", "canary", body); err != nil { + t.Fatal(err) + } +} + +func TestReplaceWorkload_NodePool_ClusterScoped(t *testing.T) { + existing := seedExisting("karpenter.sh/v1", "NodePool", "default", "", "1") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + // Cluster-scoped: caller may pass an empty namespace. + body := newWorkloadManifest("karpenter.sh/v1", "NodePool", "default", "", nil) + if _, err := m.ReplaceWorkload(context.Background(), "NodePool", "", "default", body); err != nil { + t.Fatal(err) + } +} + +func TestReplaceWorkload_EC2NodeClass_ClusterScoped(t *testing.T) { + existing := seedExisting("karpenter.k8s.aws/v1", "EC2NodeClass", "default", "", "1") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + body := newWorkloadManifest("karpenter.k8s.aws/v1", "EC2NodeClass", "default", "", nil) + if _, err := m.ReplaceWorkload(context.Background(), "EC2NodeClass", "", "default", body); err != nil { + t.Fatal(err) + } +} + +// ---------- error paths ---------- + +func TestReplaceWorkload_UnsupportedKind(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + _, err := m.ReplaceWorkload(context.Background(), "Pod", "shop", "web", map[string]any{}) + if err == nil || !strings.Contains(err.Error(), "not supported") { + t.Errorf("err = %v; want 'not supported' rejection (RESOURCE_NOT_SUPPORTED)", err) + } +} + +func TestReplaceWorkload_NoDynamicClient(t *testing.T) { + m := New(fake.NewClientset(), "", nil) + // SetDynamic deliberately not called — this is the "agent has no + // CRD-capable client" production path. Should fail fast, not panic. + _, err := m.ReplaceWorkload(context.Background(), "Deployment", "shop", "web", map[string]any{}) + if err == nil || !strings.Contains(err.Error(), "dynamic client") { + t.Errorf("err = %v; want 'dynamic client not configured'", err) + } +} + +func TestReplaceWorkload_NamespacedRequiresNamespace(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + _, err := m.ReplaceWorkload(context.Background(), "Deployment", "", "web", map[string]any{}) + if err == nil || !strings.Contains(err.Error(), "namespace required") { + t.Errorf("err = %v; want 'namespace required'", err) + } +} + +func TestReplaceWorkload_NotFoundSurfacesAsError(t *testing.T) { + // 404 should surface as an explicit error (the legacy typed client + // re-raised ACTION_UNEXPECTED_ERROR). A missing object must not + // silently "create". + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + body := newWorkloadManifest("apps/v1", "Deployment", "missing", "shop", nil) + _, err := m.ReplaceWorkload(context.Background(), "Deployment", "shop", "missing", body) + if err == nil { + t.Error("replace of missing resource must error (no implicit create)") + } +} + +func TestReplaceWorkload_RejectsEmptyName(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + _, err := m.ReplaceWorkload(context.Background(), "Deployment", "shop", "", map[string]any{}) + if err == nil || !strings.Contains(err.Error(), "name required") { + t.Errorf("err = %v; want 'name required'", err) + } +} + +func TestReplaceWorkload_RejectsNilBody(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + _, err := m.ReplaceWorkload(context.Background(), "Deployment", "shop", "web", nil) + if err == nil || !strings.Contains(err.Error(), "body required") { + t.Errorf("err = %v; want 'replace body required'", err) + } +} + +// TestReplaceWorkload_BodyAcceptsJSONBytesAndString covers the +// permissive input shape — callers may forward raw JSON bytes or a +// JSON string instead of marshaling to map[string]any first. +func TestReplaceWorkload_BodyAcceptsJSONBytesAndString(t *testing.T) { + existing := seedExisting("apps/v1", "Deployment", "web", "shop", "100") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + jsonBody := `{"apiVersion":"apps/v1","kind":"Deployment","metadata":{"name":"web","namespace":"shop"},"spec":{"replicas":3}}` + if _, err := m.ReplaceWorkload(context.Background(), "Deployment", "shop", "web", []byte(jsonBody)); err != nil { + t.Errorf("[]byte body: %v", err) + } + + existing2 := seedExisting("apps/v1", "Deployment", "web2", "shop", "100") + dyn2 := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing2) + m2 := New(fake.NewClientset(), "", nil) + m2.SetDynamic(dyn2) + jsonBody2 := strings.ReplaceAll(jsonBody, "web", "web2") + if _, err := m2.ReplaceWorkload(context.Background(), "Deployment", "shop", "web2", jsonBody2); err != nil { + t.Errorf("string body: %v", err) + } +} + +// ---------- handler shape ---------- + +func TestHandleReplaceWorkload_PerKindFieldShape(t *testing.T) { + // ReplaceNamespacedWorkload exposes per-kind manifest fields + // (deployment, daemonset, …). Forwarding ReplaceNamespacedWorkload.dict() + // must work unchanged — pickReplaceBody walks `` first. + existing := seedExisting("apps/v1", "Deployment", "web", "shop", "100") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + hs := Handlers(m) + h, ok := hs["replace_workload"] + if !ok { + t.Fatal("replace_workload not registered (dynamic client is set)") + } + resp, err := h(context.Background(), map[string]any{ + "kind": "Deployment", + "name": "web", + "namespace": "shop", + "deployment": newWorkloadManifest("apps/v1", "Deployment", "web", "shop", nil), + }) + if err != nil { + t.Fatal(err) + } + r := resp.(map[string]any) + msg, _ := r["message"].(string) + if msg != "Deployment/shop/web updated" { + t.Errorf("message = %q; want 'Deployment/shop/web updated'", msg) + } +} + +func TestHandleReplaceWorkload_BodyFieldShape(t *testing.T) { + existing := seedExisting("apps/v1", "Deployment", "web", "shop", "100") + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme(), existing) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + hs := Handlers(m) + resp, err := hs["replace_workload"](context.Background(), map[string]any{ + "kind": "Deployment", + "name": "web", + "namespace": "shop", + "body": newWorkloadManifest("apps/v1", "Deployment", "web", "shop", nil), + }) + if err != nil { + t.Fatal(err) + } + if resp.(map[string]any)["message"] != "Deployment/shop/web updated" { + t.Errorf("message wrong: %v", resp) + } +} + +func TestHandleReplaceWorkload_MissingKind(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + _, err := Handlers(m)["replace_workload"](context.Background(), map[string]any{ + "name": "web", + "namespace": "shop", + }) + if err == nil || !strings.Contains(err.Error(), "kind required") { + t.Errorf("err = %v; want 'kind required'", err) + } +} + +func TestHandleReplaceWorkload_MissingBody(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(workloadScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + + _, err := Handlers(m)["replace_workload"](context.Background(), map[string]any{ + "kind": "Deployment", + "name": "web", + "namespace": "shop", + }) + if err == nil || !strings.Contains(err.Error(), "body required") { + t.Errorf("err = %v; want 'body required' with hint", err) + } + // Confirm the error message hints at the per-kind field name. + if err != nil && !strings.Contains(err.Error(), `"deployment"`) { + t.Errorf("err hint missing per-kind field name: %v", err) + } +} + +func TestHandleReplaceWorkload_NotRegisteredWithoutDynamic(t *testing.T) { + // Without SetDynamic the action MUST NOT register — otherwise calls + // reach m.ReplaceWorkload and we'd return "dynamic client not + // configured" with no help to the operator. The auth gate also can't + // guard a missing handler differently from a misconfigured one. + m := New(fake.NewClientset(), "", nil) + if _, ok := Handlers(m)["replace_workload"]; ok { + t.Error("replace_workload registered without dynamic client — gating broken") + } +} diff --git a/runner/pkg/observability/chronosphere/chronosphere_test.go b/runner/pkg/observability/chronosphere/chronosphere_test.go new file mode 100644 index 0000000..acdc325 --- /dev/null +++ b/runner/pkg/observability/chronosphere/chronosphere_test.go @@ -0,0 +1,76 @@ +package chronosphere + +import ( + "context" + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +func TestQueryTraces_PostsBodyAndAuth(t *testing.T) { + var path, body, auth string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + auth = r.Header.Get("Authorization") + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{"traces":[]}`)) + })) + defer srv.Close() + + c := New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + c.APIKey = "tk-1" + if _, err := c.QueryTraces(context.Background(), map[string]any{"service": "frontend"}); err != nil { + t.Fatal(err) + } + if path != "/api/unstable/data/traces/searches" { + t.Errorf("path = %q", path) + } + if auth != "Bearer tk-1" { + t.Errorf("Authorization = %q", auth) + } + if !strings.Contains(body, `"service":"frontend"`) { + t.Errorf("body = %s", body) + } +} + +func TestQueryTraces_RequiresParams(t *testing.T) { + c := New("http://x", nil) + if _, err := c.QueryTraces(context.Background(), nil); err == nil { + t.Error("expected error for nil params") + } +} + +func TestQueryTraces_NoURL(t *testing.T) { + c := New("", nil) + if _, err := c.QueryTraces(context.Background(), map[string]any{}); err == nil { + t.Error("expected error for missing URL") + } +} + +func TestQueryTraces_HTTPError(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusUnauthorized) + _, _ = w.Write([]byte(`{"error":"unauthorized"}`)) + })) + defer srv.Close() + c := New(srv.URL, nil) + _, err := c.QueryTraces(context.Background(), map[string]any{}) + if err == nil || !strings.Contains(err.Error(), "401") { + t.Errorf("expected HTTP 401 error, got %v", err) + } +} + +func TestHandlers_DispatchEndToEnd(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"traces":[]}`)) + })) + defer srv.Close() + hs := Handlers(New(srv.URL, nil)) + if _, err := hs["chronosphere_query_traces"](context.Background(), map[string]any{"x": 1}); err != nil { + t.Fatal(err) + } +} diff --git a/runner/pkg/observability/chronosphere/client.go b/runner/pkg/observability/chronosphere/client.go new file mode 100644 index 0000000..e9992c2 --- /dev/null +++ b/runner/pkg/observability/chronosphere/client.go @@ -0,0 +1,69 @@ +// Package chronosphere is a thin HTTP wrapper for Chronosphere's tracing +// search API. +// +// Action surface: +// - chronosphere_query_traces : POST /api/unstable/data/traces/searches +// +// The action_params is forwarded as the JSON body unchanged. +package chronosphere + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "strings" + "time" +) + +type Client struct { + BaseURL string + APIKey string // sent as Authorization: Bearer + HTTP *http.Client +} + +func New(baseURL string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{BaseURL: strings.TrimRight(baseURL, "/"), HTTP: httpClient} +} + +// QueryTraces forwards params as the search request body. +func (c *Client) QueryTraces(ctx context.Context, params any) (json.RawMessage, error) { + if c.BaseURL == "" { + return nil, errors.New("chronosphere: base URL not configured") + } + if params == nil { + return nil, errors.New("chronosphere: params required") + } + body, err := json.Marshal(params) + if err != nil { + return nil, fmt.Errorf("marshal: %w", err) + } + req, err := http.NewRequestWithContext(ctx, http.MethodPost, + c.BaseURL+"/api/unstable/data/traces/searches", bytes.NewReader(body)) + if err != nil { + return nil, err + } + req.Header.Set("Content-Type", "application/json") + if c.APIKey != "" { + req.Header.Set("Authorization", "Bearer "+c.APIKey) + } + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("chronosphere: %w", err) + } + defer func() { _ = resp.Body.Close() }() + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("chronosphere HTTP %d: %s", resp.StatusCode, string(respBody)) + } + return json.RawMessage(respBody), nil +} diff --git a/runner/pkg/observability/chronosphere/handlers.go b/runner/pkg/observability/chronosphere/handlers.go new file mode 100644 index 0000000..61057c4 --- /dev/null +++ b/runner/pkg/observability/chronosphere/handlers.go @@ -0,0 +1,19 @@ +package chronosphere + +import ( + "context" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "chronosphere_query_traces": func(ctx context.Context, p map[string]any) (any, error) { + raw, err := c.QueryTraces(ctx, p) + if err != nil { + return nil, err + } + return raw, nil + }, + } +} diff --git a/runner/pkg/observability/elasticsearch/client.go b/runner/pkg/observability/elasticsearch/client.go new file mode 100644 index 0000000..e292e88 --- /dev/null +++ b/runner/pkg/observability/elasticsearch/client.go @@ -0,0 +1,137 @@ +// Package elasticsearch is a thin HTTP wrapper for the ES query primitives. +// Same shape as pkg/observability/prometheus. +// +// Action surface: +// - query_es : POST {index}/_search with DSL, or {index}/_plugins/_ppl with PPL +// - query_es_indices : GET _cat/indices?format=json +// - query_es_index_field : GET {index}/_mapping +// - query_es_field_index_values : terms aggregation on {field} +package elasticsearch + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "strings" + "time" +) + +type Client struct { + BaseURL string + HTTP *http.Client + ExtraHeaders http.Header + Username string // optional Basic-Auth + Password string + APIKey string // optional ApiKey header +} + +func New(baseURL string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{BaseURL: strings.TrimRight(baseURL, "/"), HTTP: httpClient} +} + +// Search runs a DSL or PPL query. +// +// queryType = "dsl" | "ppl" (default dsl) +// query = for dsl: full search body as map; for ppl: query string +func (c *Client) Search(ctx context.Context, index, queryType string, query any) (json.RawMessage, error) { + if index == "" { + return nil, errors.New("elasticsearch: index is required") + } + if queryType == "" { + queryType = "dsl" + } + switch queryType { + case "dsl": + body, err := json.Marshal(query) + if err != nil { + return nil, fmt.Errorf("marshal dsl: %w", err) + } + return c.do(ctx, http.MethodPost, "/"+index+"/_search", body, "application/json") + case "ppl": + s, _ := query.(string) + body, _ := json.Marshal(map[string]any{"query": s}) + return c.do(ctx, http.MethodPost, "/_plugins/_ppl", body, "application/json") + default: + return nil, fmt.Errorf("elasticsearch: unsupported query_type %q", queryType) + } +} + +// Indices returns _cat/indices in JSON form. +func (c *Client) Indices(ctx context.Context) (json.RawMessage, error) { + return c.do(ctx, http.MethodGet, "/_cat/indices?format=json", nil, "") +} + +// IndexFields returns mapping for an index. +func (c *Client) IndexFields(ctx context.Context, index string) (json.RawMessage, error) { + if index == "" { + return nil, errors.New("elasticsearch: index is required") + } + return c.do(ctx, http.MethodGet, "/"+index+"/_mapping", nil, "") +} + +// FieldValues returns distinct values for one field via a terms aggregation. +func (c *Client) FieldValues(ctx context.Context, index, field string, limit int) (json.RawMessage, error) { + if index == "" || field == "" { + return nil, errors.New("elasticsearch: index and field required") + } + if limit <= 0 { + limit = 5000 + } + body := map[string]any{ + "size": 0, + "aggs": map[string]any{ + "unique_values": map[string]any{ + "terms": map[string]any{"field": field, "size": limit}, + }, + }, + } + b, _ := json.Marshal(body) + return c.do(ctx, http.MethodPost, "/"+index+"/_search", b, "application/json") +} + +func (c *Client) do(ctx context.Context, method, path string, body []byte, contentType string) (json.RawMessage, error) { + if c.BaseURL == "" { + return nil, errors.New("elasticsearch: base URL not configured") + } + var rd io.Reader + if body != nil { + rd = bytes.NewReader(body) + } + req, err := http.NewRequestWithContext(ctx, method, c.BaseURL+path, rd) + if err != nil { + return nil, err + } + if contentType != "" { + req.Header.Set("Content-Type", contentType) + } + if c.APIKey != "" { + req.Header.Set("Authorization", "ApiKey "+c.APIKey) + } else if c.Username != "" { + req.SetBasicAuth(c.Username, c.Password) + } + for k, vv := range c.ExtraHeaders { + for _, v := range vv { + req.Header.Add(k, v) + } + } + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("elasticsearch %s %s: %w", method, path, err) + } + defer func() { _ = resp.Body.Close() }() + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("elasticsearch %s: HTTP %d: %s", path, resp.StatusCode, string(respBody)) + } + return json.RawMessage(respBody), nil +} diff --git a/runner/pkg/observability/elasticsearch/elasticsearch_test.go b/runner/pkg/observability/elasticsearch/elasticsearch_test.go new file mode 100644 index 0000000..d023527 --- /dev/null +++ b/runner/pkg/observability/elasticsearch/elasticsearch_test.go @@ -0,0 +1,214 @@ +package elasticsearch + +import ( + "context" + "encoding/json" + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +func newTestClient(handler http.HandlerFunc) (*Client, *httptest.Server) { + srv := httptest.NewServer(handler) + return New(srv.URL, &http.Client{Timeout: 5 * time.Second}), srv +} + +func TestSearch_DSL_PostsBody(t *testing.T) { + var gotBody string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/logs-2026.05/_search" { + t.Errorf("path = %q", r.URL.Path) + } + body, _ := io.ReadAll(r.Body) + gotBody = string(body) + _, _ = w.Write([]byte(`{"hits":{"total":{"value":0}}}`)) + }) + defer srv.Close() + + body := map[string]any{"size": 10, "query": map[string]any{"match_all": map[string]any{}}} + _, err := c.Search(context.Background(), "logs-2026.05", "dsl", body) + if err != nil { + t.Fatal(err) + } + if !strings.Contains(gotBody, `"size":10`) || !strings.Contains(gotBody, "match_all") { + t.Errorf("body did not pass through: %q", gotBody) + } +} + +func TestSearch_PPL_PostsToPlugins(t *testing.T) { + var gotPath, gotBody string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + gotPath = r.URL.Path + body, _ := io.ReadAll(r.Body) + gotBody = string(body) + _, _ = w.Write([]byte(`{"schema":[]}`)) + }) + defer srv.Close() + if _, err := c.Search(context.Background(), "logs-*", "ppl", "source=logs | head 5"); err != nil { + t.Fatal(err) + } + if gotPath != "/_plugins/_ppl" { + t.Errorf("path = %q", gotPath) + } + if !strings.Contains(gotBody, `"query":"source=logs | head 5"`) { + t.Errorf("body = %s", gotBody) + } +} + +func TestSearch_RequiresIndex(t *testing.T) { + c := New("http://x", nil) + if _, err := c.Search(context.Background(), "", "dsl", map[string]any{}); err == nil { + t.Error("expected error for missing index") + } +} + +func TestSearch_RejectsUnknownQueryType(t *testing.T) { + c := New("http://x", nil) + if _, err := c.Search(context.Background(), "i", "graphql", map[string]any{}); err == nil { + t.Error("expected error for unknown query_type") + } +} + +func TestIndices_GetsCatEndpoint(t *testing.T) { + var path string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.RequestURI() + _, _ = w.Write([]byte(`[]`)) + }) + defer srv.Close() + if _, err := c.Indices(context.Background()); err != nil { + t.Fatal(err) + } + if path != "/_cat/indices?format=json" { + t.Errorf("path = %q", path) + } +} + +func TestIndexFields_GetsMapping(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/logs-1/_mapping" { + t.Errorf("path = %q", r.URL.Path) + } + _, _ = w.Write([]byte(`{}`)) + }) + defer srv.Close() + if _, err := c.IndexFields(context.Background(), "logs-1"); err != nil { + t.Fatal(err) + } +} + +func TestIndexFields_RequiresIndex(t *testing.T) { + c := New("http://x", nil) + if _, err := c.IndexFields(context.Background(), ""); err == nil { + t.Error("expected error") + } +} + +func TestFieldValues_BuildsTermsAgg(t *testing.T) { + var body string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{"aggregations":{}}`)) + }) + defer srv.Close() + if _, err := c.FieldValues(context.Background(), "logs-1", "service.name", 100); err != nil { + t.Fatal(err) + } + if !strings.Contains(body, `"field":"service.name"`) || !strings.Contains(body, `"size":100`) { + t.Errorf("body = %s", body) + } +} + +func TestFieldValues_DefaultsLimit(t *testing.T) { + var body string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{}`)) + }) + defer srv.Close() + _, _ = c.FieldValues(context.Background(), "logs-1", "x", 0) + if !strings.Contains(body, `"size":5000`) { + t.Errorf("default limit not applied: %s", body) + } +} + +func TestAPIKeyHeader(t *testing.T) { + var got string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + got = r.Header.Get("Authorization") + _, _ = w.Write([]byte(`[]`)) + }) + defer srv.Close() + c.APIKey = "test-key" + _, _ = c.Indices(context.Background()) + if got != "ApiKey test-key" { + t.Errorf("Authorization = %q", got) + } +} + +func TestBasicAuth(t *testing.T) { + var u, p string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + u, p, _ = r.BasicAuth() + _, _ = w.Write([]byte(`[]`)) + }) + defer srv.Close() + c.Username = "elastic" + c.Password = "changeme" + _, _ = c.Indices(context.Background()) + if u != "elastic" || p != "changeme" { + t.Errorf("BasicAuth = %s/%s", u, p) + } +} + +func TestHandlers_DSL_Roundtrip(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + _, _ = w.Write([]byte(`{"hits":[]}`)) + }) + defer srv.Close() + + hs := Handlers(c) + got, err := hs["query_es"](context.Background(), map[string]any{ + "index": "logs-1", + "query_type": "dsl", + "query": map[string]any{"size": 5, "query": map[string]any{"match_all": map[string]any{}}}, + }) + if err != nil { + t.Fatal(err) + } + raw := got.(json.RawMessage) + if !strings.Contains(string(raw), `"hits":[]`) { + t.Errorf("body = %s", raw) + } +} + +func TestHandlers_PPL(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + body, _ := io.ReadAll(r.Body) + if !strings.Contains(string(body), `"query":"source=logs"`) { + t.Errorf("body = %s", body) + } + _, _ = w.Write([]byte(`{}`)) + }) + defer srv.Close() + hs := Handlers(c) + if _, err := hs["query_es"](context.Background(), map[string]any{ + "index": "logs-1", "query_type": "ppl", "query": "source=logs", + }); err != nil { + t.Fatal(err) + } +} + +func TestHandlers_AllRegistered(t *testing.T) { + hs := Handlers(New("http://x", nil)) + for _, want := range []string{"query_es", "query_es_indices", "query_es_index_field", "query_es_field_index_values"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing %s", want) + } + } +} diff --git a/runner/pkg/observability/elasticsearch/handlers.go b/runner/pkg/observability/elasticsearch/handlers.go new file mode 100644 index 0000000..5cb43c1 --- /dev/null +++ b/runner/pkg/observability/elasticsearch/handlers.go @@ -0,0 +1,83 @@ +package elasticsearch + +import ( + "context" + "encoding/json" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires the ES primitive actions. +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "query_es": wrap(c, handleQuery), + "query_es_indices": wrap(c, handleIndices), + "query_es_index_field": wrap(c, handleIndexFields), + "query_es_field_index_values": wrap(c, handleFieldValues), + } +} + +func wrap(c *Client, fn func(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error)) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + raw, err := fn(ctx, c, params) + if err != nil { + return nil, err + } + return raw, nil + } +} + +func handleQuery(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error) { + index := str(p, "index") + queryType := str(p, "query_type") + if queryType == "" { + queryType = "dsl" + } + if queryType == "ppl" { + // PPL params arrive as a single string under "query". + return c.Search(ctx, index, queryType, str(p, "query")) + } + // DSL: full search body lives under "query" or merged at the top level. + if q, ok := p["query"]; ok { + // Some callers pass the raw search body; others pass {query: {...}}. + // The legacy receiver strips one wrapping level — mirror that. + if m, ok := q.(map[string]any); ok { + if inner, ok := m["query"]; ok { + m["query"] = inner + } + return c.Search(ctx, index, "dsl", m) + } + } + rest := map[string]any{} + for k, v := range p { + if k == "index" || k == "query_type" { + continue + } + rest[k] = v + } + return c.Search(ctx, index, "dsl", rest) +} + +func handleIndices(ctx context.Context, c *Client, _ map[string]any) (json.RawMessage, error) { + return c.Indices(ctx) +} + +func handleIndexFields(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error) { + return c.IndexFields(ctx, str(p, "index")) +} + +func handleFieldValues(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error) { + limit := 0 + if v, ok := p["limit"].(float64); ok { + limit = int(v) + } + return c.FieldValues(ctx, str(p, "index"), str(p, "field_name"), limit) +} + +func str(m map[string]any, k string) string { + if m == nil { + return "" + } + s, _ := m[k].(string) + return s +} diff --git a/runner/pkg/observability/gcp/client.go b/runner/pkg/observability/gcp/client.go new file mode 100644 index 0000000..f560ef2 --- /dev/null +++ b/runner/pkg/observability/gcp/client.go @@ -0,0 +1,155 @@ +// Package gcp implements the gke_logs and gke_traces primitives by hitting +// Google Cloud's REST APIs directly. We deliberately avoid pulling +// cloud.google.com/go/{logging,bigquery} SDKs — they would add ~30 MB to +// the binary and a lot of dep tree. The REST API surface we need is small. +// +// Auth: Application Default Credentials via golang.org/x/oauth2/google. +// In-cluster this picks up Workload Identity automatically (the standard +// GKE pattern). Locally it picks up GOOGLE_APPLICATION_CREDENTIALS or +// gcloud user creds. +// +// Action surface: +// - gke_logs : Cloud Logging entries for a GKE node pool in a zone +// - gke_traces : arbitrary BigQuery SQL (used for traces stored in BQ) +package gcp + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "strings" + "time" + + "golang.org/x/oauth2/google" +) + +// Client wraps an *http.Client that has ADC bearer-token injection wired in. +// Concurrent-safe. +type Client struct { + HTTP *http.Client + + // Override URLs for tests. Empty = official Google endpoints. + LoggingBaseURL string + BigQueryBaseURL string +} + +const ( + defaultLoggingURL = "https://logging.googleapis.com" + defaultBigQueryURL = "https://bigquery.googleapis.com" +) + +// New returns a Client whose HTTP transport carries ADC. ctx is used for +// initial token fetching and is honoured for context cancellation. +func New(ctx context.Context) (*Client, error) { + scopes := []string{ + "https://www.googleapis.com/auth/logging.read", + "https://www.googleapis.com/auth/bigquery.readonly", + } + httpClient, err := google.DefaultClient(ctx, scopes...) + if err != nil { + return nil, fmt.Errorf("gcp: load ADC: %w", err) + } + httpClient.Timeout = 60 * time.Second + return &Client{HTTP: httpClient}, nil +} + +// NewWithHTTP is a constructor for tests that bring their own client (e.g. +// httptest with a pre-injected fake token). +func NewWithHTTP(c *http.Client) *Client { + return &Client{HTTP: c} +} + +// FetchNodePoolLogs queries Cloud Logging for GCE-instance entries scoped +// to a zone. +// +// projectID : GCP project (required) +// zone : compute zone, e.g. "us-central1-a" (required) +// limit : max entries (defaults to 100) +func (c *Client) FetchNodePoolLogs(ctx context.Context, projectID, zone string, limit int) (json.RawMessage, error) { + if projectID == "" { + return nil, errors.New("gcp: project_id required") + } + if zone == "" { + return nil, errors.New("gcp: zone required") + } + if limit <= 0 { + limit = 100 + } + + body := map[string]any{ + "resourceNames": []string{"projects/" + projectID}, + "filter": fmt.Sprintf( + `resource.type="gce_instance" AND resource.labels.zone="%s"`, + zone, + ), + "pageSize": limit, + "orderBy": "timestamp desc", + } + return c.postJSON(ctx, c.loggingURL()+"/v2/entries:list", body) +} + +// QueryBigQuery runs an arbitrary SQL query as a synchronous query job. +// Does not perform server-side pagination (callers needing pagination iterate +// with maxResults + pageToken via a follow-up action). +func (c *Client) QueryBigQuery(ctx context.Context, projectID, query string) (json.RawMessage, error) { + if projectID == "" { + return nil, errors.New("gcp: project_id required") + } + if query == "" { + return nil, errors.New("gcp: query required") + } + body := map[string]any{ + "query": query, + "useLegacySql": false, + "timeoutMs": 30000, + // No maxResults — let BigQuery default; backend can cap on its end. + } + url := c.bigQueryURL() + "/bigquery/v2/projects/" + projectID + "/queries" + return c.postJSON(ctx, url, body) +} + +func (c *Client) loggingURL() string { + if c.LoggingBaseURL != "" { + return strings.TrimRight(c.LoggingBaseURL, "/") + } + return defaultLoggingURL +} + +func (c *Client) bigQueryURL() string { + if c.BigQueryBaseURL != "" { + return strings.TrimRight(c.BigQueryBaseURL, "/") + } + return defaultBigQueryURL +} + +func (c *Client) postJSON(ctx context.Context, url string, body any) (json.RawMessage, error) { + if c.HTTP == nil { + return nil, errors.New("gcp: HTTP client not configured") + } + bodyBytes, err := json.Marshal(body) + if err != nil { + return nil, fmt.Errorf("marshal: %w", err) + } + req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(bodyBytes)) + if err != nil { + return nil, err + } + req.Header.Set("Content-Type", "application/json") + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("gcp post %s: %w", url, err) + } + defer func() { _ = resp.Body.Close() }() + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("gcp %s: HTTP %d: %s", url, resp.StatusCode, string(respBody)) + } + return json.RawMessage(respBody), nil +} diff --git a/runner/pkg/observability/gcp/gcp_test.go b/runner/pkg/observability/gcp/gcp_test.go new file mode 100644 index 0000000..dcc7006 --- /dev/null +++ b/runner/pkg/observability/gcp/gcp_test.go @@ -0,0 +1,213 @@ +package gcp + +import ( + "context" + "encoding/json" + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +// newTestClient bypasses ADC by injecting a plain *http.Client. The test +// servers' URLs are wired in via the LoggingBaseURL / BigQueryBaseURL +// override fields. This is the same pattern the prom/loki/jaeger tests use. +func newTestClient() *Client { + return NewWithHTTP(&http.Client{Timeout: 5 * time.Second}) +} + +func TestFetchNodePoolLogs_PostsExpectedFilter(t *testing.T) { + var path, body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{"entries":[]}`)) + })) + defer srv.Close() + + c := newTestClient() + c.LoggingBaseURL = srv.URL + if _, err := c.FetchNodePoolLogs(context.Background(), "my-proj", "us-central1-a", 50); err != nil { + t.Fatal(err) + } + if path != "/v2/entries:list" { + t.Errorf("path = %q", path) + } + if !strings.Contains(body, `"projects/my-proj"`) { + t.Errorf("missing resourceNames: %s", body) + } + if !strings.Contains(body, `resource.labels.zone=\"us-central1-a\"`) { + t.Errorf("missing zone filter: %s", body) + } + if !strings.Contains(body, `"pageSize":50`) { + t.Errorf("missing pageSize: %s", body) + } +} + +func TestFetchNodePoolLogs_DefaultLimit(t *testing.T) { + var body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{}`)) + })) + defer srv.Close() + c := newTestClient() + c.LoggingBaseURL = srv.URL + if _, err := c.FetchNodePoolLogs(context.Background(), "p", "z", 0); err != nil { + t.Fatal(err) + } + if !strings.Contains(body, `"pageSize":100`) { + t.Errorf("default limit not applied: %s", body) + } +} + +func TestFetchNodePoolLogs_RequiresProjectAndZone(t *testing.T) { + c := newTestClient() + if _, err := c.FetchNodePoolLogs(context.Background(), "", "z", 1); err == nil { + t.Error("missing project should error") + } + if _, err := c.FetchNodePoolLogs(context.Background(), "p", "", 1); err == nil { + t.Error("missing zone should error") + } +} + +func TestQueryBigQuery_PostsToProjectQueriesEndpoint(t *testing.T) { + var path, body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{"jobComplete":true,"rows":[]}`)) + })) + defer srv.Close() + c := newTestClient() + c.BigQueryBaseURL = srv.URL + if _, err := c.QueryBigQuery(context.Background(), "my-proj", "SELECT 1"); err != nil { + t.Fatal(err) + } + if path != "/bigquery/v2/projects/my-proj/queries" { + t.Errorf("path = %q", path) + } + if !strings.Contains(body, `"query":"SELECT 1"`) || !strings.Contains(body, `"useLegacySql":false`) { + t.Errorf("body = %s", body) + } +} + +func TestQueryBigQuery_RequiresProjectAndQuery(t *testing.T) { + c := newTestClient() + if _, err := c.QueryBigQuery(context.Background(), "", "SELECT 1"); err == nil { + t.Error("missing project should error") + } + if _, err := c.QueryBigQuery(context.Background(), "p", ""); err == nil { + t.Error("missing query should error") + } +} + +func TestPropagatesHTTPErrors(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusForbidden) + _, _ = w.Write([]byte(`{"error":{"code":403,"message":"missing perm"}}`)) + })) + defer srv.Close() + c := newTestClient() + c.LoggingBaseURL = srv.URL + _, err := c.FetchNodePoolLogs(context.Background(), "p", "z", 1) + if err == nil || !strings.Contains(err.Error(), "403") { + t.Errorf("expected HTTP 403, got %v", err) + } +} + +func TestPostJSON_NoHTTPClient(t *testing.T) { + c := &Client{} + _, err := c.postJSON(context.Background(), "http://x", map[string]any{}) + if err == nil { + t.Error("expected error when HTTP client unset") + } +} + +func TestHandlers_AllRegistered(t *testing.T) { + hs := Handlers(newTestClient(), "default-proj") + for _, want := range []string{"gke_logs", "gke_traces"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing %s", want) + } + } +} + +func TestHandlers_UseDefaultProjectID(t *testing.T) { + var body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{}`)) + })) + defer srv.Close() + c := newTestClient() + c.LoggingBaseURL = srv.URL + hs := Handlers(c, "fallback-proj") + if _, err := hs["gke_logs"](context.Background(), map[string]any{ + "zone": "us-east1-a", + "limit": float64(7), + // project_id intentionally omitted + }); err != nil { + t.Fatal(err) + } + if !strings.Contains(body, `"projects/fallback-proj"`) { + t.Errorf("default project_id not applied: %s", body) + } + if !strings.Contains(body, `"pageSize":7`) { + t.Errorf("limit not applied: %s", body) + } +} + +func TestHandlers_ParamsOverrideDefault(t *testing.T) { + var body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{}`)) + })) + defer srv.Close() + c := newTestClient() + c.BigQueryBaseURL = srv.URL + hs := Handlers(c, "default-proj") + got, err := hs["gke_traces"](context.Background(), map[string]any{ + "project_id": "explicit-proj", + "query": "SELECT 2", + }) + if err != nil { + t.Fatal(err) + } + raw, _ := got.(json.RawMessage) + if string(raw) == "" { + t.Error("handler returned empty raw response") + } + if !strings.Contains(body, `SELECT 2`) { + t.Errorf("query not forwarded: %s", body) + } +} + +func TestNew_FailsCleanlyWithoutCreds(t *testing.T) { + // google.DefaultClient should still succeed on most dev machines (gcloud + // installed), but we want the error path covered. Force ADC failure by + // pointing GOOGLE_APPLICATION_CREDENTIALS at a non-existent file AND + // disabling default token sources via NO_GCE_CHECK. + t.Setenv("GOOGLE_APPLICATION_CREDENTIALS", "/no/such/file.json") + t.Setenv("NO_GCE_CHECK", "true") + t.Setenv("CLOUDSDK_CONFIG", t.TempDir()) // empty gcloud config dir + t.Setenv("HOME", t.TempDir()) + // On many CI machines, none of the above default token sources will resolve; + // New() should error. On dev machines with gcloud creds, it'll succeed — + // that's also fine. + _, err := New(context.Background()) + if err == nil { + t.Skip("dev machine has ADC creds; error path not exercised here") + } + if !strings.Contains(err.Error(), "ADC") && !strings.Contains(err.Error(), "credentials") { + t.Errorf("error %q does not look like ADC failure", err.Error()) + } +} diff --git a/runner/pkg/observability/gcp/handlers.go b/runner/pkg/observability/gcp/handlers.go new file mode 100644 index 0000000..5ab80b9 --- /dev/null +++ b/runner/pkg/observability/gcp/handlers.go @@ -0,0 +1,53 @@ +package gcp + +import ( + "context" + "encoding/json" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires the GCP primitive actions. defaultProjectID is used when +// the action params omit `project_id` (most callers). +func Handlers(c *Client, defaultProjectID string) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "gke_logs": func(ctx context.Context, p map[string]any) (any, error) { + project := strOrDefault(p, "project_id", defaultProjectID) + limit := 0 + if v, ok := p["limit"].(float64); ok { + limit = int(v) + } + raw, err := c.FetchNodePoolLogs(ctx, project, str(p, "zone"), limit) + if err != nil { + return nil, err + } + return raw, nil + }, + "gke_traces": func(ctx context.Context, p map[string]any) (any, error) { + project := strOrDefault(p, "project_id", defaultProjectID) + raw, err := c.QueryBigQuery(ctx, project, str(p, "query")) + if err != nil { + return nil, err + } + return raw, nil + }, + } +} + +func str(m map[string]any, k string) string { + if m == nil { + return "" + } + s, _ := m[k].(string) + return s +} + +func strOrDefault(m map[string]any, k, fallback string) string { + if v := str(m, k); v != "" { + return v + } + return fallback +} + +// MustEncodeJSON keeps the import set tidy in case future handlers need it. +var _ = json.RawMessage(nil) diff --git a/runner/pkg/observability/httpproxy/handlers.go b/runner/pkg/observability/httpproxy/handlers.go new file mode 100644 index 0000000..a709319 --- /dev/null +++ b/runner/pkg/observability/httpproxy/handlers.go @@ -0,0 +1,67 @@ +package httpproxy + +import ( + "context" + "encoding/json" + "net/url" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires the http_proxy_request action. +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "http_proxy_request": func(ctx context.Context, p map[string]any) (any, error) { + return c.Do(ctx, parseRequest(p)) + }, + } +} + +func parseRequest(p map[string]any) *Request { + r := &Request{ + Target: str(p, "target"), + Method: str(p, "method"), + Path: str(p, "path"), + } + // Headers: map[string]string from action_params. + if h, ok := p["headers"].(map[string]any); ok { + r.Headers = make(map[string]string, len(h)) + for k, v := range h { + if s, ok := v.(string); ok { + r.Headers[k] = s + } + } + } + // Query: map[string]string|[]string. + if q, ok := p["query"].(map[string]any); ok { + r.Query = url.Values{} + for k, v := range q { + switch x := v.(type) { + case string: + r.Query.Set(k, x) + case []any: + for _, s := range x { + if str, ok := s.(string); ok { + r.Query.Add(k, str) + } + } + } + } + } + // Body: any JSON value, re-marshalled. + if b, ok := p["body"]; ok && b != nil { + marshaled, err := json.Marshal(b) + if err == nil { + r.Body = marshaled + } + } + return r +} + +func str(m map[string]any, k string) string { + if m == nil { + return "" + } + s, _ := m[k].(string) + return s +} diff --git a/runner/pkg/observability/httpproxy/proxy.go b/runner/pkg/observability/httpproxy/proxy.go new file mode 100644 index 0000000..c05e8c3 --- /dev/null +++ b/runner/pkg/observability/httpproxy/proxy.go @@ -0,0 +1,128 @@ +// Package httpproxy is a generic in-cluster HTTP proxy primitive. +// +// Action surface: +// - http_proxy_request : forward an arbitrary request to a configured base URL +// +// The action takes: +// +// {target: "" | url, method, path, headers, body, query} +// +// `target` resolves against a per-Client name → base URL map (configured by +// main from values.yaml). This replaces the legacy single-purpose Grafana +// proxy + generic APIProxy with one named-target primitive that handles both. +package httpproxy + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "strings" + "time" +) + +type Client struct { + Targets map[string]string // name → base URL + HTTP *http.Client +} + +func New(targets map[string]string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{Targets: targets, HTTP: httpClient} +} + +type Request struct { + Target string + Method string + Path string + Query url.Values + Headers map[string]string + Body json.RawMessage +} + +type Response struct { + StatusCode int `json:"status_code"` + Headers map[string]string `json:"headers"` + Body string `json:"body"` +} + +func (c *Client) Do(ctx context.Context, r *Request) (*Response, error) { + baseURL, err := c.resolveTarget(r.Target) + if err != nil { + return nil, err + } + method := r.Method + if method == "" { + method = http.MethodGet + } + u := strings.TrimRight(baseURL, "/") + "/" + strings.TrimLeft(r.Path, "/") + if len(r.Query) > 0 { + u += "?" + r.Query.Encode() + } + + var body io.Reader + if len(r.Body) > 0 { + body = bytes.NewReader(r.Body) + } + req, err := http.NewRequestWithContext(ctx, method, u, body) + if err != nil { + return nil, err + } + for k, v := range r.Headers { + req.Header.Set(k, v) + } + + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("httpproxy: %w", err) + } + defer func() { _ = resp.Body.Close() }() + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + headers := map[string]string{} + for k, v := range resp.Header { + if len(v) > 0 { + headers[k] = v[0] + } + } + return &Response{StatusCode: resp.StatusCode, Headers: headers, Body: string(respBody)}, nil +} + +// resolveTarget allows two forms: +// +// target: "grafana" -> looks up Client.Targets["grafana"] +// target: "https://grafana..." -> used directly (operator-explicit) +// +// Operator-explicit URLs require Client.Targets to contain "*" or to be empty +// (i.e., explicit-only mode). Without this guard, a misauthenticated request +// could hit any URL the agent can reach. +func (c *Client) resolveTarget(target string) (string, error) { + if target == "" { + return "", errors.New("httpproxy: target required") + } + if strings.HasPrefix(target, "http://") || strings.HasPrefix(target, "https://") { + // Allowed only if explicitly enabled via the wildcard target. + if _, ok := c.Targets["*"]; ok { + return target, nil + } + return "", fmt.Errorf("httpproxy: explicit URL targets are disabled") + } + base, ok := c.Targets[target] + if !ok { + return "", fmt.Errorf("httpproxy: target %q not configured", target) + } + return base, nil +} + +// Now also wired below as a higher-timeout retry-allowed default. Note the +// http.Client uses one connection pool across all targets; concurrent calls +// are safe. +var _ = time.Second // keep import for future per-request timeouts diff --git a/runner/pkg/observability/httpproxy/proxy_test.go b/runner/pkg/observability/httpproxy/proxy_test.go new file mode 100644 index 0000000..859740f --- /dev/null +++ b/runner/pkg/observability/httpproxy/proxy_test.go @@ -0,0 +1,164 @@ +package httpproxy + +import ( + "context" + "encoding/json" + "io" + "net/http" + "net/http/httptest" + "net/url" + "strings" + "testing" + "time" +) + +func TestDo_NamedTarget(t *testing.T) { + got := struct { + path, method string + body string + hdrName string + query string + }{} + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + got.path = r.URL.Path + got.method = r.Method + got.hdrName = r.Header.Get("X-Test") + got.query = r.URL.RawQuery + body, _ := io.ReadAll(r.Body) + got.body = string(body) + w.Header().Set("Content-Type", "application/json") + _, _ = w.Write([]byte(`{"ok":true}`)) + })) + defer srv.Close() + + c := New(map[string]string{"grafana": srv.URL}, &http.Client{Timeout: 5 * time.Second}) + resp, err := c.Do(context.Background(), &Request{ + Target: "grafana", + Method: "POST", + Path: "/api/dashboards/db", + Headers: map[string]string{"X-Test": "v1"}, + Query: url.Values{"q": []string{"x"}}, + Body: json.RawMessage(`{"name":"x"}`), + }) + if err != nil { + t.Fatal(err) + } + if resp.StatusCode != 200 { + t.Errorf("status = %d", resp.StatusCode) + } + if got.path != "/api/dashboards/db" || got.method != "POST" { + t.Errorf("got %+v", got) + } + if got.hdrName != "v1" || got.query != "q=x" { + t.Errorf("hdr/query: %+v", got) + } + if got.body != `{"name":"x"}` { + t.Errorf("body = %q", got.body) + } + if !strings.Contains(resp.Body, `"ok":true`) { + t.Errorf("response body = %q", resp.Body) + } +} + +func TestDo_RejectsUnknownTarget(t *testing.T) { + c := New(map[string]string{"grafana": "http://x"}, nil) + _, err := c.Do(context.Background(), &Request{Target: "secret-internal"}) + if err == nil { + t.Error("expected error for unconfigured target") + } +} + +func TestDo_RejectsExplicitURLByDefault(t *testing.T) { + c := New(map[string]string{"grafana": "http://g"}, nil) + _, err := c.Do(context.Background(), &Request{Target: "http://attacker.example/x"}) + if err == nil { + t.Error("expected error for explicit URL without wildcard") + } +} + +func TestDo_AllowsExplicitURLWithWildcard(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`ok`)) + })) + defer srv.Close() + c := New(map[string]string{"*": "ignored"}, nil) + resp, err := c.Do(context.Background(), &Request{Target: srv.URL}) + if err != nil { + t.Fatal(err) + } + if resp.StatusCode != 200 { + t.Errorf("status = %d", resp.StatusCode) + } +} + +func TestDo_RequiresTarget(t *testing.T) { + c := New(nil, nil) + if _, err := c.Do(context.Background(), &Request{}); err == nil { + t.Error("expected error for missing target") + } +} + +func TestDo_DefaultMethodIsGet(t *testing.T) { + var method string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + method = r.Method + })) + defer srv.Close() + c := New(map[string]string{"x": srv.URL}, nil) + if _, err := c.Do(context.Background(), &Request{Target: "x", Path: "/"}); err != nil { + t.Fatal(err) + } + if method != http.MethodGet { + t.Errorf("method = %q; want GET", method) + } +} + +func TestParseRequest_AllFields(t *testing.T) { + r := parseRequest(map[string]any{ + "target": "grafana", + "method": "POST", + "path": "/api/x", + "headers": map[string]any{ + "X-Foo": "bar", + "X-Bad": 42, // not a string — dropped + }, + "query": map[string]any{ + "q": "x", + "tags": []any{"a", "b"}, + }, + "body": map[string]any{"k": "v"}, + }) + if r.Target != "grafana" || r.Method != "POST" || r.Path != "/api/x" { + t.Errorf("scalars: %+v", r) + } + if r.Headers["X-Foo"] != "bar" || r.Headers["X-Bad"] != "" { + t.Errorf("headers: %+v", r.Headers) + } + if r.Query.Get("q") != "x" || len(r.Query["tags"]) != 2 { + t.Errorf("query: %+v", r.Query) + } + if string(r.Body) != `{"k":"v"}` { + t.Errorf("body: %s", r.Body) + } +} + +func TestHandlers_RegisterAndDispatch(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`ok`)) + })) + defer srv.Close() + hs := Handlers(New(map[string]string{"g": srv.URL}, nil)) + if _, ok := hs["http_proxy_request"]; !ok { + t.Fatal("http_proxy_request not registered") + } + got, err := hs["http_proxy_request"](context.Background(), map[string]any{ + "target": "g", "path": "/x", + }) + if err != nil { + t.Fatal(err) + } + resp, _ := got.(*Response) + if resp == nil || resp.StatusCode != 200 { + t.Errorf("response = %+v", resp) + } +} diff --git a/runner/pkg/observability/jaeger/client.go b/runner/pkg/observability/jaeger/client.go new file mode 100644 index 0000000..5e36300 --- /dev/null +++ b/runner/pkg/observability/jaeger/client.go @@ -0,0 +1,132 @@ +// Package jaeger is a thin HTTP wrapper for Jaeger's query API. +// +// Action surface: +// - jaeger_query_traces : GET /api/traces +// - jaeger_query_services : GET /api/services +// - jaeger_query_trace_by_id : GET /api/traces/{id} +// - jaeger_query_operations : GET /api/services/{service}/operations +// - jaeger_query_metrics : GET /api/metrics/{type} (Jaeger SPM) +package jaeger + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "strings" + "time" +) + +type Client struct { + BaseURL string + HTTP *http.Client + ExtraHeaders http.Header +} + +func New(baseURL string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{BaseURL: strings.TrimRight(baseURL, "/"), HTTP: httpClient} +} + +// Traces searches traces. params is forwarded as the query string; common +// keys are service, operation, start, end, limit, tags. +func (c *Client) Traces(ctx context.Context, params map[string]any) (json.RawMessage, error) { + v := paramsToQuery(params) + return c.get(ctx, "/api/traces", v) +} + +// Services lists known services. +func (c *Client) Services(ctx context.Context) (json.RawMessage, error) { + return c.get(ctx, "/api/services", nil) +} + +// TraceByID fetches a single trace. +func (c *Client) TraceByID(ctx context.Context, id string) (json.RawMessage, error) { + if id == "" { + return nil, errors.New("jaeger: trace id required") + } + return c.get(ctx, "/api/traces/"+url.PathEscape(id), nil) +} + +// Operations lists operations for a service. +func (c *Client) Operations(ctx context.Context, service string) (json.RawMessage, error) { + if service == "" { + return nil, errors.New("jaeger: service required") + } + return c.get(ctx, "/api/services/"+url.PathEscape(service)+"/operations", nil) +} + +// Metrics queries Jaeger SPM metrics. metricType is one of latencies, +// call_rates, error_rates, min_step. +func (c *Client) Metrics(ctx context.Context, metricType string, params map[string]any) (json.RawMessage, error) { + if metricType == "" { + return nil, errors.New("jaeger: metric_type required") + } + return c.get(ctx, "/api/metrics/"+url.PathEscape(metricType), paramsToQuery(params)) +} + +func paramsToQuery(params map[string]any) url.Values { + v := url.Values{} + for k, val := range params { + switch x := val.(type) { + case string: + if x != "" { + v.Set(k, x) + } + case []string: + for _, s := range x { + v.Add(k, s) + } + case []any: + for _, s := range x { + if str, ok := s.(string); ok { + v.Add(k, str) + } + } + case float64: + v.Set(k, fmt.Sprintf("%g", x)) + case int: + v.Set(k, fmt.Sprintf("%d", x)) + case bool: + v.Set(k, fmt.Sprintf("%t", x)) + } + } + return v +} + +func (c *Client) get(ctx context.Context, path string, params url.Values) (json.RawMessage, error) { + if c.BaseURL == "" { + return nil, errors.New("jaeger: base URL not configured") + } + u := c.BaseURL + path + if len(params) > 0 { + u += "?" + params.Encode() + } + req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil) + if err != nil { + return nil, err + } + for k, vv := range c.ExtraHeaders { + for _, v := range vv { + req.Header.Add(k, v) + } + } + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("jaeger get %s: %w", path, err) + } + defer func() { _ = resp.Body.Close() }() + body, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("jaeger %s: HTTP %d: %s", path, resp.StatusCode, string(body)) + } + return json.RawMessage(body), nil +} diff --git a/runner/pkg/observability/jaeger/handlers.go b/runner/pkg/observability/jaeger/handlers.go new file mode 100644 index 0000000..6b7cd07 --- /dev/null +++ b/runner/pkg/observability/jaeger/handlers.go @@ -0,0 +1,59 @@ +package jaeger + +import ( + "context" + "encoding/json" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires Jaeger primitive actions. +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "jaeger_query_traces": wrap(c, handleTraces), + "jaeger_query_services": wrap(c, handleServices), + "jaeger_query_trace_by_id": wrap(c, handleTraceByID), + "jaeger_query_operations": wrap(c, handleOperations), + "jaeger_query_metrics": wrap(c, handleMetrics), + } +} + +func wrap(c *Client, fn func(context.Context, *Client, map[string]any) (json.RawMessage, error)) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + raw, err := fn(ctx, c, params) + if err != nil { + return nil, err + } + return raw, nil + } +} + +func handleTraces(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error) { + return c.Traces(ctx, p) +} + +func handleServices(ctx context.Context, c *Client, _ map[string]any) (json.RawMessage, error) { + return c.Services(ctx) +} + +func handleTraceByID(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error) { + id, _ := p["trace_id"].(string) + return c.TraceByID(ctx, id) +} + +func handleOperations(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error) { + svc, _ := p["service"].(string) + return c.Operations(ctx, svc) +} + +func handleMetrics(ctx context.Context, c *Client, p map[string]any) (json.RawMessage, error) { + metricType, _ := p["metric_type"].(string) + rest := map[string]any{} + for k, v := range p { + if k == "metric_type" { + continue + } + rest[k] = v + } + return c.Metrics(ctx, metricType, rest) +} diff --git a/runner/pkg/observability/jaeger/jaeger_test.go b/runner/pkg/observability/jaeger/jaeger_test.go new file mode 100644 index 0000000..dfc7efa --- /dev/null +++ b/runner/pkg/observability/jaeger/jaeger_test.go @@ -0,0 +1,176 @@ +package jaeger + +import ( + "context" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +func newTestClient(handler http.HandlerFunc) (*Client, *httptest.Server) { + srv := httptest.NewServer(handler) + return New(srv.URL, &http.Client{Timeout: 5 * time.Second}), srv +} + +func TestTraces_PassesQueryString(t *testing.T) { + var path string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.RequestURI() + _, _ = w.Write([]byte(`{"data":[]}`)) + }) + defer srv.Close() + if _, err := c.Traces(context.Background(), map[string]any{ + "service": "frontend", + "operation": "GET /", + "limit": 20, + }); err != nil { + t.Fatal(err) + } + if !strings.HasPrefix(path, "/api/traces?") { + t.Errorf("path = %q", path) + } + if !strings.Contains(path, "service=frontend") || !strings.Contains(path, "limit=20") { + t.Errorf("query string missing params: %q", path) + } +} + +func TestTraceByID_RequiresID(t *testing.T) { + c := New("http://x", nil) + if _, err := c.TraceByID(context.Background(), ""); err == nil { + t.Error("expected error") + } +} + +func TestTraceByID_BuildsPath(t *testing.T) { + var path string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + _, _ = w.Write([]byte(`{"data":[]}`)) + }) + defer srv.Close() + if _, err := c.TraceByID(context.Background(), "abc-123"); err != nil { + t.Fatal(err) + } + if path != "/api/traces/abc-123" { + t.Errorf("path = %q", path) + } +} + +func TestServices_GetsEndpoint(t *testing.T) { + var path string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + _, _ = w.Write([]byte(`{"data":["a"]}`)) + }) + defer srv.Close() + if _, err := c.Services(context.Background()); err != nil { + t.Fatal(err) + } + if path != "/api/services" { + t.Errorf("path = %q", path) + } +} + +func TestOperations_RequiresService(t *testing.T) { + c := New("http://x", nil) + if _, err := c.Operations(context.Background(), ""); err == nil { + t.Error("expected error") + } +} + +func TestOperations_BuildsPath(t *testing.T) { + var path string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + _, _ = w.Write([]byte(`{"data":[]}`)) + }) + defer srv.Close() + if _, err := c.Operations(context.Background(), "frontend"); err != nil { + t.Fatal(err) + } + if path != "/api/services/frontend/operations" { + t.Errorf("path = %q", path) + } +} + +func TestMetrics_RequiresType(t *testing.T) { + c := New("http://x", nil) + if _, err := c.Metrics(context.Background(), "", map[string]any{}); err == nil { + t.Error("expected error") + } +} + +func TestMetrics_BuildsPath(t *testing.T) { + var path string + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.RequestURI() + _, _ = w.Write([]byte(`{}`)) + }) + defer srv.Close() + if _, err := c.Metrics(context.Background(), "latencies", map[string]any{"service": "frontend"}); err != nil { + t.Fatal(err) + } + if !strings.HasPrefix(path, "/api/metrics/latencies") { + t.Errorf("path = %q", path) + } +} + +func TestParamsToQuery_TypeCoercion(t *testing.T) { + got := paramsToQuery(map[string]any{ + "s": "x", + "n": 42, + "f": 1.5, + "b": true, + "sl": []any{"a", "b", 1}, + "ss": []string{"c"}, + "e": "", + }) + if got.Get("s") != "x" || got.Get("n") != "42" || got.Get("f") != "1.5" || got.Get("b") != "true" { + t.Errorf("scalar coercion: %v", got) + } + if vs := got["sl"]; len(vs) != 2 || vs[0] != "a" || vs[1] != "b" { + t.Errorf("slice coercion: %v", vs) + } + if got.Has("e") { + t.Errorf("empty string should be omitted: %v", got) + } +} + +func TestPropagatesHTTPErrors(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusInternalServerError) + _, _ = w.Write([]byte("oops")) + }) + defer srv.Close() + if _, err := c.Services(context.Background()); err == nil { + t.Error("expected HTTP 500 error") + } +} + +func TestHandlers_AllRegistered(t *testing.T) { + hs := Handlers(New("http://x", nil)) + for _, want := range []string{ + "jaeger_query_traces", "jaeger_query_services", "jaeger_query_trace_by_id", + "jaeger_query_operations", "jaeger_query_metrics", + } { + if _, ok := hs[want]; !ok { + t.Errorf("missing %s", want) + } + } +} + +func TestHandlers_TraceByID_Roundtrip(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/api/traces/abc" { + t.Errorf("path = %q", r.URL.Path) + } + _, _ = w.Write([]byte(`{"data":[]}`)) + }) + defer srv.Close() + hs := Handlers(c) + if _, err := hs["jaeger_query_trace_by_id"](context.Background(), map[string]any{"trace_id": "abc"}); err != nil { + t.Fatal(err) + } +} diff --git a/runner/pkg/observability/loki/client.go b/runner/pkg/observability/loki/client.go new file mode 100644 index 0000000..371489c --- /dev/null +++ b/runner/pkg/observability/loki/client.go @@ -0,0 +1,157 @@ +// Package loki is a thin HTTP wrapper around Grafana Loki's query API. +// Same pattern as pkg/observability/prometheus: agent forwards raw bytes, +// backend parses. +// +// Endpoints (https://grafana.com/docs/loki/latest/reference/loki-http-api/): +// +// GET /loki/api/v1/query — instant LogQL query +// GET /loki/api/v1/query_range — range LogQL query +// GET /loki/api/v1/labels — list of labels +// GET /loki/api/v1/label/{name}/values — values for one label +// GET /loki/api/v1/series — series matching a selector +package loki + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "strings" + "time" +) + +type Client struct { + BaseURL string + HTTP *http.Client + ExtraHeaders http.Header +} + +func New(baseURL string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{BaseURL: strings.TrimRight(baseURL, "/"), HTTP: httpClient} +} + +func (c *Client) Query(ctx context.Context, query, atTime, limit string) (json.RawMessage, error) { + if query == "" { + return nil, errors.New("loki: query is required") + } + v := url.Values{} + v.Set("query", query) + if atTime != "" { + v.Set("time", atTime) + } + if limit != "" { + v.Set("limit", limit) + } + return c.get(ctx, "/loki/api/v1/query", v) +} + +func (c *Client) QueryRange(ctx context.Context, query, start, end, step, direction, limit string) (json.RawMessage, error) { + if query == "" { + return nil, errors.New("loki: query is required") + } + v := url.Values{} + v.Set("query", query) + if start != "" { + v.Set("start", start) + } + if end != "" { + v.Set("end", end) + } + if step != "" { + v.Set("step", step) + } + if direction != "" { + v.Set("direction", direction) + } + if limit != "" { + v.Set("limit", limit) + } + return c.get(ctx, "/loki/api/v1/query_range", v) +} + +func (c *Client) Labels(ctx context.Context, start, end, query string) (json.RawMessage, error) { + v := url.Values{} + if start != "" { + v.Set("start", start) + } + if end != "" { + v.Set("end", end) + } + if query != "" { + v.Set("query", query) + } + return c.get(ctx, "/loki/api/v1/labels", v) +} + +func (c *Client) LabelValues(ctx context.Context, label, start, end, query string) (json.RawMessage, error) { + if label == "" { + return nil, errors.New("loki: label is required") + } + v := url.Values{} + if start != "" { + v.Set("start", start) + } + if end != "" { + v.Set("end", end) + } + if query != "" { + v.Set("query", query) + } + return c.get(ctx, "/loki/api/v1/label/"+url.PathEscape(label)+"/values", v) +} + +func (c *Client) Series(ctx context.Context, matchers []string, start, end string) (json.RawMessage, error) { + if len(matchers) == 0 { + return nil, errors.New("loki: at least one matcher is required") + } + v := url.Values{} + for _, m := range matchers { + v.Add("match[]", m) + } + if start != "" { + v.Set("start", start) + } + if end != "" { + v.Set("end", end) + } + return c.get(ctx, "/loki/api/v1/series", v) +} + +func (c *Client) get(ctx context.Context, path string, params url.Values) (json.RawMessage, error) { + if c.BaseURL == "" { + return nil, errors.New("loki: base URL not configured") + } + u := c.BaseURL + path + if len(params) > 0 { + u += "?" + params.Encode() + } + req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil) + if err != nil { + return nil, err + } + for k, vv := range c.ExtraHeaders { + for _, v := range vv { + req.Header.Add(k, v) + } + } + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("loki get %s: %w", path, err) + } + defer func() { _ = resp.Body.Close() }() + + body, err := io.ReadAll(resp.Body) + if err != nil { + return nil, fmt.Errorf("loki read %s: %w", path, err) + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("loki %s: HTTP %d: %s", path, resp.StatusCode, string(body)) + } + return json.RawMessage(body), nil +} diff --git a/runner/pkg/observability/loki/handlers.go b/runner/pkg/observability/loki/handlers.go new file mode 100644 index 0000000..65cfed5 --- /dev/null +++ b/runner/pkg/observability/loki/handlers.go @@ -0,0 +1,82 @@ +package loki + +import ( + "context" + "encoding/json" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers returns the action handler map for Loki primitives. Names mirror +// Prometheus's pattern: action_name = `loki_`. Backend composers +// invoke these. +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "loki_query": wrap(c.handleQuery), + "loki_query_range": wrap(c.handleQueryRange), + "loki_labels": wrap(c.handleLabels), + "loki_label_values": wrap(c.handleLabelValues), + "loki_series": wrap(c.handleSeries), + } +} + +func wrap(fn func(ctx context.Context, p map[string]any) (json.RawMessage, error)) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + raw, err := fn(ctx, params) + if err != nil { + return nil, err + } + return raw, nil + } +} + +func (c *Client) handleQuery(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.Query(ctx, str(p, "query"), str(p, "time"), str(p, "limit")) +} + +func (c *Client) handleQueryRange(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.QueryRange(ctx, str(p, "query"), str(p, "start"), str(p, "end"), str(p, "step"), str(p, "direction"), str(p, "limit")) +} + +func (c *Client) handleLabels(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.Labels(ctx, str(p, "start"), str(p, "end"), str(p, "query")) +} + +func (c *Client) handleLabelValues(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.LabelValues(ctx, str(p, "label"), str(p, "start"), str(p, "end"), str(p, "query")) +} + +func (c *Client) handleSeries(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.Series(ctx, strSlice(p, "match[]"), str(p, "start"), str(p, "end")) +} + +func str(p map[string]any, key string) string { + if p == nil { + return "" + } + s, _ := p[key].(string) + return s +} + +func strSlice(p map[string]any, key string) []string { + if p == nil { + return nil + } + switch v := p[key].(type) { + case nil: + return nil + case string: + return []string{v} + case []string: + return v + case []any: + out := make([]string, 0, len(v)) + for _, x := range v { + if s, ok := x.(string); ok { + out = append(out, s) + } + } + return out + } + return nil +} diff --git a/runner/pkg/observability/loki/loki_integration_test.go b/runner/pkg/observability/loki/loki_integration_test.go new file mode 100644 index 0000000..41f5e36 --- /dev/null +++ b/runner/pkg/observability/loki/loki_integration_test.go @@ -0,0 +1,119 @@ +//go:build integration + +package loki + +import ( + "context" + "encoding/json" + "fmt" + "net/http" + "testing" + "time" + + "github.com/testcontainers/testcontainers-go" + "github.com/testcontainers/testcontainers-go/wait" +) + +// Real Loki container test. Boots grafana/loki, waits for /ready, runs every +// Client method. Loki without ingested logs returns empty result sets, which +// is fine — we're testing the wire-protocol contract of our client, not Loki +// itself. +func TestClient_AgainstRealLoki(t *testing.T) { + if testing.Short() { + t.Skip("integration test; -short") + } + + ctx, cancel := context.WithTimeout(context.Background(), 120*time.Second) + defer cancel() + + req := testcontainers.ContainerRequest{ + Image: "grafana/loki:2.9.4", + ExposedPorts: []string{"3100/tcp"}, + Cmd: []string{"-config.file=/etc/loki/local-config.yaml"}, + WaitingFor: wait.ForHTTP("/ready").WithPort("3100/tcp").WithStartupTimeout(90 * time.Second), + } + container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{ + ContainerRequest: req, + Started: true, + }) + if err != nil { + t.Fatalf("start loki: %v", err) + } + t.Cleanup(func() { _ = container.Terminate(context.Background()) }) + + host, err := container.Host(ctx) + if err != nil { + t.Fatal(err) + } + port, err := container.MappedPort(ctx, "3100/tcp") + if err != nil { + t.Fatal(err) + } + baseURL := fmt.Sprintf("http://%s:%s", host, port.Port()) + + c := New(baseURL, &http.Client{Timeout: 10 * time.Second}) + + t.Run("Labels_Empty", func(t *testing.T) { + raw, err := c.Labels(ctx, "", "", "") + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + if got["status"] != "success" { + t.Errorf("status = %v", got["status"]) + } + }) + + t.Run("Query_NoLogs", func(t *testing.T) { + // Empty Loki, but the client must still produce a valid request and + // receive a parseable success response. + raw, err := c.Query(ctx, `{job="x"}`, "", "10") + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + if got["status"] != "success" { + t.Errorf("status = %v", got["status"]) + } + }) + + t.Run("QueryRange_NoLogs", func(t *testing.T) { + end := time.Now().UnixNano() + start := end - int64(60*time.Second) + raw, err := c.QueryRange(ctx, + `{job="x"}`, + fmt.Sprintf("%d", start), + fmt.Sprintf("%d", end), + "", + "backward", + "100", + ) + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + if got["status"] != "success" { + t.Errorf("status = %v", got["status"]) + } + }) + + t.Run("Handlers_DispatchEndToEnd", func(t *testing.T) { + hs := Handlers(c) + got, err := hs["loki_labels"](ctx, map[string]any{}) + if err != nil { + t.Fatal(err) + } + if string(got.(json.RawMessage)) == "" { + t.Error("handler returned empty body") + } + }) +} + +func decode(t *testing.T, raw json.RawMessage) map[string]any { + t.Helper() + var got map[string]any + if err := json.Unmarshal(raw, &got); err != nil { + t.Fatalf("decode: %v", err) + } + return got +} diff --git a/runner/pkg/observability/loki/loki_test.go b/runner/pkg/observability/loki/loki_test.go new file mode 100644 index 0000000..8f4bd0c --- /dev/null +++ b/runner/pkg/observability/loki/loki_test.go @@ -0,0 +1,169 @@ +package loki + +import ( + "context" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +func TestQuery_PassesParams(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/loki/api/v1/query" { + t.Errorf("path = %q", r.URL.Path) + } + if got := r.URL.Query().Get("query"); got != `{job="x"}` { + t.Errorf("query = %q", got) + } + _, _ = w.Write([]byte(`{"status":"success"}`)) + })) + defer srv.Close() + + c := New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + got, err := c.Query(context.Background(), `{job="x"}`, "", "") + if err != nil { + t.Fatal(err) + } + if string(got) != `{"status":"success"}` { + t.Errorf("body %s", got) + } +} + +func TestHandlers_Series_PromotesSingleString(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + matchers := r.URL.Query()["match[]"] + if len(matchers) != 1 || matchers[0] != `{job="x"}` { + t.Errorf("match[] = %v", matchers) + } + _, _ = w.Write([]byte(`{"status":"success"}`)) + })) + defer srv.Close() + + hs := Handlers(New(srv.URL, &http.Client{Timeout: 5 * time.Second})) + if _, err := hs["loki_series"](context.Background(), map[string]any{"match[]": `{job="x"}`}); err != nil { + t.Fatal(err) + } +} + +func TestQueryRange_RequiresQuery(t *testing.T) { + c := New("http://example", nil) + if _, err := c.QueryRange(context.Background(), "", "1", "2", "", "", ""); err == nil { + t.Error("expected error for missing query") + } +} + +func TestSeries_RequiresMatcher(t *testing.T) { + c := New("http://example", nil) + if _, err := c.Series(context.Background(), nil, "", ""); err == nil { + t.Error("expected error for missing matcher") + } +} + +func TestLabelValues_RequiresLabel(t *testing.T) { + c := New("http://example", nil) + if _, err := c.LabelValues(context.Background(), "", "", "", ""); err == nil { + t.Error("expected error for missing label") + } +} + +func TestExtraHeaders_Sent(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if got := r.Header.Get("X-Scope-OrgID"); got != "tenant-1" { + t.Errorf("X-Scope-OrgID = %q", got) + } + _, _ = w.Write([]byte(`{}`)) + })) + defer srv.Close() + c := New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + c.ExtraHeaders = http.Header{"X-Scope-OrgID": []string{"tenant-1"}} + if _, err := c.Query(context.Background(), `{job="x"}`, "", ""); err != nil { + t.Fatal(err) + } +} + +func TestGet_PropagatesHTTP4xx(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusBadRequest) + _, _ = w.Write([]byte("bad query")) + })) + defer srv.Close() + c := New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + _, err := c.Query(context.Background(), `(invalid`, "", "") + if err == nil || !contains(err.Error(), "HTTP 400") { + t.Errorf("expected HTTP 400 error, got %v", err) + } +} + +// One unit test per handler — same pattern as prometheus. +func TestHandlers_AllActionsRoundtrip(t *testing.T) { + type wantReq struct { + path string + query map[string]string + } + cases := []struct { + action string + params map[string]any + want wantReq + }{ + {"loki_query", map[string]any{"query": `{job="x"}`, "limit": "10"}, wantReq{path: "/loki/api/v1/query", query: map[string]string{"query": `{job="x"}`, "limit": "10"}}}, + {"loki_query_range", map[string]any{"query": `{job="x"}`, "start": "1", "end": "2", "direction": "backward"}, wantReq{path: "/loki/api/v1/query_range", query: map[string]string{"query": `{job="x"}`, "start": "1", "end": "2", "direction": "backward"}}}, + {"loki_labels", map[string]any{"start": "1", "end": "2"}, wantReq{path: "/loki/api/v1/labels", query: map[string]string{"start": "1", "end": "2"}}}, + {"loki_label_values", map[string]any{"label": "job", "start": "1"}, wantReq{path: "/loki/api/v1/label/job/values", query: map[string]string{"start": "1"}}}, + {"loki_series", map[string]any{"match[]": []any{`{job="x"}`}, "start": "1"}, wantReq{path: "/loki/api/v1/series", query: map[string]string{"start": "1"}}}, + } + + for _, tc := range cases { + t.Run(tc.action, func(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != tc.want.path { + t.Errorf("path = %q; want %q", r.URL.Path, tc.want.path) + } + for k, v := range tc.want.query { + if got := r.URL.Query().Get(k); got != v { + t.Errorf("query[%s] = %q; want %q", k, got, v) + } + } + _, _ = w.Write([]byte(`{"status":"success"}`)) + })) + defer srv.Close() + hs := Handlers(New(srv.URL, &http.Client{Timeout: 5 * time.Second})) + h, ok := hs[tc.action] + if !ok { + t.Fatalf("handler not registered: %s", tc.action) + } + if _, err := h(context.Background(), tc.params); err != nil { + t.Fatalf("handler err: %v", err) + } + }) + } +} + +func TestStrSlice_Variants(t *testing.T) { + cases := []struct { + in any + want []string + }{ + {nil, nil}, + {`x`, []string{"x"}}, + {[]string{"a", "b"}, []string{"a", "b"}}, + {[]any{"a", "b"}, []string{"a", "b"}}, + {[]any{"a", 42}, []string{"a"}}, + {42, nil}, + } + for _, c := range cases { + got := strSlice(map[string]any{"k": c.in}, "k") + if len(got) != len(c.want) { + t.Errorf("strSlice(%v) = %v; want %v", c.in, got, c.want) + continue + } + for i := range got { + if got[i] != c.want[i] { + t.Errorf("strSlice(%v)[%d] = %q; want %q", c.in, i, got[i], c.want[i]) + } + } + } +} + +func contains(haystack, needle string) bool { return strings.Contains(haystack, needle) } diff --git a/runner/pkg/observability/pinot/client.go b/runner/pkg/observability/pinot/client.go new file mode 100644 index 0000000..d18f3a9 --- /dev/null +++ b/runner/pkg/observability/pinot/client.go @@ -0,0 +1,104 @@ +// Package pinot is a thin HTTP wrapper for Apache Pinot's controller REST API. +// +// Action surface: +// - pinot_query : POST /query/sql — execute a SQL query +// - pinot_tables : GET /tables — list available tables +// - pinot_schema : GET /schemas/{table} — column layout for a table +// +// All methods forward results as raw JSON bytes; backend composes higher-level logic. +package pinot + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "strings" + "time" +) + +type Client struct { + BaseURL string + AuthToken string // optional Bearer token + Username string // optional Basic-Auth + Password string + HTTP *http.Client + ExtraHeaders http.Header +} + +func New(baseURL string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{BaseURL: strings.TrimRight(baseURL, "/"), HTTP: httpClient} +} + +// Query executes a SQL query. +// Controller (port 9000) uses /sql; broker (port 8099) uses /query/sql. +// Default targets the controller path — set PINOT_URL to the broker if needed. +func (c *Client) Query(ctx context.Context, sql string) (json.RawMessage, error) { + if sql == "" { + return nil, errors.New("pinot: sql query is required") + } + body, err := json.Marshal(map[string]string{"sql": sql}) + if err != nil { + return nil, fmt.Errorf("marshal: %w", err) + } + return c.do(ctx, http.MethodPost, "/sql", body, "application/json") +} + +// Tables returns the list of available Pinot tables. +func (c *Client) Tables(ctx context.Context) (json.RawMessage, error) { + return c.do(ctx, http.MethodGet, "/tables", nil, "") +} + +// Schema returns the column schema for the given table. +func (c *Client) Schema(ctx context.Context, table string) (json.RawMessage, error) { + if table == "" { + return nil, errors.New("pinot: table name is required") + } + return c.do(ctx, http.MethodGet, "/schemas/"+table, nil, "") +} + +func (c *Client) do(ctx context.Context, method, path string, body []byte, contentType string) (json.RawMessage, error) { + if c.BaseURL == "" { + return nil, errors.New("pinot: base URL not configured") + } + var rd io.Reader + if body != nil { + rd = bytes.NewReader(body) + } + req, err := http.NewRequestWithContext(ctx, method, c.BaseURL+path, rd) + if err != nil { + return nil, err + } + if contentType != "" { + req.Header.Set("Content-Type", contentType) + } + if c.AuthToken != "" { + req.Header.Set("Authorization", "Bearer "+c.AuthToken) + } else if c.Username != "" { + req.SetBasicAuth(c.Username, c.Password) + } + for k, vv := range c.ExtraHeaders { + for _, v := range vv { + req.Header.Add(k, v) + } + } + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("pinot %s %s: %w", method, path, err) + } + defer func() { _ = resp.Body.Close() }() + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("pinot %s: HTTP %d: %s", path, resp.StatusCode, string(respBody)) + } + return json.RawMessage(respBody), nil +} diff --git a/runner/pkg/observability/pinot/handlers.go b/runner/pkg/observability/pinot/handlers.go new file mode 100644 index 0000000..f685e34 --- /dev/null +++ b/runner/pkg/observability/pinot/handlers.go @@ -0,0 +1,44 @@ +package pinot + +import ( + "context" + "encoding/json" + "fmt" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires Pinot primitive actions to the dispatcher. +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "pinot_query": wrapQuery(c), + "pinot_tables": wrapNoArg(c.Tables), + "pinot_schema": wrapSchema(c), + } +} + +func wrapQuery(c *Client) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + sql, _ := params["sql"].(string) + if sql == "" { + return nil, fmt.Errorf("pinot_query: sql param required") + } + return c.Query(ctx, sql) + } +} + +func wrapSchema(c *Client) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + table, _ := params["table"].(string) + if table == "" { + return nil, fmt.Errorf("pinot_schema: table param required") + } + return c.Schema(ctx, table) + } +} + +func wrapNoArg(fn func(context.Context) (json.RawMessage, error)) dispatch.Handler { + return func(ctx context.Context, _ map[string]any) (any, error) { + return fn(ctx) + } +} diff --git a/runner/pkg/observability/pinot/pinot_test.go b/runner/pkg/observability/pinot/pinot_test.go new file mode 100644 index 0000000..9d480ab --- /dev/null +++ b/runner/pkg/observability/pinot/pinot_test.go @@ -0,0 +1,178 @@ +package pinot + +import ( + "context" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +func TestQuery_PostsSQL(t *testing.T) { + var path, body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + b := make([]byte, 256) + n, _ := r.Body.Read(b) + body = string(b[:n]) + _, _ = w.Write([]byte(`{"resultTable":{}}`)) + })) + defer srv.Close() + + c := New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + _, err := c.Query(context.Background(), "SELECT * FROM logs LIMIT 10") + if err != nil { + t.Fatal(err) + } + if path != "/sql" { + t.Errorf("path = %q; want /sql", path) + } + if !strings.Contains(body, "SELECT * FROM logs") { + t.Errorf("body = %s", body) + } +} + +func TestQuery_RequiresSQL(t *testing.T) { + c := New("http://x", nil) + if _, err := c.Query(context.Background(), ""); err == nil { + t.Error("expected error for empty sql") + } +} + +func TestTables_GETRoute(t *testing.T) { + var path string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + _, _ = w.Write([]byte(`{"tables":["logs"]}`)) + })) + defer srv.Close() + + c := New(srv.URL, nil) + if _, err := c.Tables(context.Background()); err != nil { + t.Fatal(err) + } + if path != "/tables" { + t.Errorf("path = %q; want /tables", path) + } +} + +func TestSchema_GETRoute(t *testing.T) { + var path string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + _, _ = w.Write([]byte(`{"schemaName":"logs"}`)) + })) + defer srv.Close() + + c := New(srv.URL, nil) + if _, err := c.Schema(context.Background(), "logs"); err != nil { + t.Fatal(err) + } + if path != "/schemas/logs" { + t.Errorf("path = %q; want /schemas/logs", path) + } +} + +func TestSchema_RequiresTable(t *testing.T) { + c := New("http://x", nil) + if _, err := c.Schema(context.Background(), ""); err == nil { + t.Error("expected error for empty table") + } +} + +func TestBearerAuth_SetOnRequests(t *testing.T) { + var got string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + got = r.Header.Get("Authorization") + _, _ = w.Write([]byte(`{"tables":[]}`)) + })) + defer srv.Close() + + c := New(srv.URL, nil) + c.AuthToken = "tok123" + if _, err := c.Tables(context.Background()); err != nil { + t.Fatal(err) + } + if got != "Bearer tok123" { + t.Errorf("Authorization = %q; want Bearer tok123", got) + } +} + +func TestBasicAuth_SetWhenNoToken(t *testing.T) { + var got string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + got = r.Header.Get("Authorization") + _, _ = w.Write([]byte(`{"tables":[]}`)) + })) + defer srv.Close() + + c := New(srv.URL, nil) + c.Username = "admin" + c.Password = "secret" + if _, err := c.Tables(context.Background()); err != nil { + t.Fatal(err) + } + if !strings.HasPrefix(got, "Basic ") { + t.Errorf("Authorization = %q; want Basic ...", got) + } +} + +func TestHTTPError_Propagated(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusBadRequest) + _, _ = w.Write([]byte(`{"error":"bad query"}`)) + })) + defer srv.Close() + + c := New(srv.URL, nil) + _, err := c.Query(context.Background(), "SELECT 1") + if err == nil || !strings.Contains(err.Error(), "HTTP 400") { + t.Errorf("expected HTTP 400 error, got %v", err) + } +} + +func TestHandlers_AllRegistered(t *testing.T) { + hs := Handlers(New("http://x", nil)) + for _, want := range []string{"pinot_query", "pinot_tables", "pinot_schema"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing handler: %s", want) + } + } +} + +func TestHandlers_QueryDispatch(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"resultTable":{"rows":[]}}`)) + })) + defer srv.Close() + + hs := Handlers(New(srv.URL, nil)) + if _, err := hs["pinot_query"](context.Background(), map[string]any{"sql": "SELECT 1"}); err != nil { + t.Fatal(err) + } +} + +func TestHandlers_TablesDispatch(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"tables":[]}`)) + })) + defer srv.Close() + + hs := Handlers(New(srv.URL, nil)) + if _, err := hs["pinot_tables"](context.Background(), map[string]any{}); err != nil { + t.Fatal(err) + } +} + +func TestHandlers_SchemaDispatch(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"schemaName":"logs"}`)) + })) + defer srv.Close() + + hs := Handlers(New(srv.URL, nil)) + if _, err := hs["pinot_schema"](context.Background(), map[string]any{"table": "logs"}); err != nil { + t.Fatal(err) + } +} diff --git a/runner/pkg/observability/prometheus/client.go b/runner/pkg/observability/prometheus/client.go new file mode 100644 index 0000000..d17ac6e --- /dev/null +++ b/runner/pkg/observability/prometheus/client.go @@ -0,0 +1,201 @@ +// Package prometheus is a thin HTTP wrapper around the Prometheus query API. +// The agent does not parse, transform, or compose results — it forwards the +// raw response bytes back to the backend, which owns all enrichment logic +// (per plan §2: backend composes via primitives). +// +// Endpoints covered (https://prometheus.io/docs/prometheus/latest/querying/api/): +// +// GET /api/v1/query — instant query +// GET /api/v1/query_range — range query +// GET /api/v1/labels — list of all labels +// GET /api/v1/label/{name}/values — values for one label +// GET /api/v1/series — series matching a selector +// GET /api/v1/alerts — active alerts +// +// All responses are returned as raw JSON. The action handler in handlers.go +// shapes the dispatch.Handler signature on top. +package prometheus + +import ( + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "strings" + "time" +) + +// Client is a Prometheus HTTP client. One Client per agent process; concurrent +// safe (uses an http.Client which is concurrent-safe). +type Client struct { + BaseURL string + HTTP *http.Client + + // ExtraHeaders are sent on every request. Used for X-Scope-OrgID + // (Cortex/Mimir multi-tenant) and any auth headers the operator + // configures via the runner secret today (LOKI_EXTRA_HEADER pattern). + ExtraHeaders http.Header +} + +// New returns a Client. Pass an empty BaseURL to disable Prometheus access +// (handlers will reject calls). +func New(baseURL string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{ + BaseURL: strings.TrimRight(baseURL, "/"), + HTTP: httpClient, + } +} + +// Query runs an instant query (/api/v1/query). +// +// query (required): PromQL expression +// time: RFC3339 or unix timestamp; empty means "now" +// timeout: server-side eval timeout, e.g. "30s" +func (c *Client) Query(ctx context.Context, query, atTime, timeout string) (json.RawMessage, error) { + if query == "" { + return nil, errors.New("prometheus: query is required") + } + v := url.Values{} + v.Set("query", query) + if atTime != "" { + v.Set("time", atTime) + } + if timeout != "" { + v.Set("timeout", timeout) + } + return c.get(ctx, "/api/v1/query", v) +} + +// QueryRange runs a range query (/api/v1/query_range). +// +// query, start, end, step are all required. +func (c *Client) QueryRange(ctx context.Context, query, start, end, step, timeout string) (json.RawMessage, error) { + if query == "" || start == "" || end == "" || step == "" { + return nil, errors.New("prometheus: query, start, end, step all required") + } + v := url.Values{} + v.Set("query", query) + v.Set("start", start) + v.Set("end", end) + v.Set("step", step) + if timeout != "" { + v.Set("timeout", timeout) + } + return c.get(ctx, "/api/v1/query_range", v) +} + +// Labels lists all label names (/api/v1/labels). start/end optional. +func (c *Client) Labels(ctx context.Context, start, end string, matchers []string) (json.RawMessage, error) { + v := url.Values{} + if start != "" { + v.Set("start", start) + } + if end != "" { + v.Set("end", end) + } + for _, m := range matchers { + v.Add("match[]", m) + } + return c.get(ctx, "/api/v1/labels", v) +} + +// LabelValues lists values for one label (/api/v1/label/{name}/values). +func (c *Client) LabelValues(ctx context.Context, label, start, end string, matchers []string) (json.RawMessage, error) { + if label == "" { + return nil, errors.New("prometheus: label is required") + } + v := url.Values{} + if start != "" { + v.Set("start", start) + } + if end != "" { + v.Set("end", end) + } + for _, m := range matchers { + v.Add("match[]", m) + } + return c.get(ctx, "/api/v1/label/"+url.PathEscape(label)+"/values", v) +} + +// Series lists series matching the selector (/api/v1/series). +func (c *Client) Series(ctx context.Context, matchers []string, start, end string) (json.RawMessage, error) { + if len(matchers) == 0 { + return nil, errors.New("prometheus: at least one matcher is required") + } + v := url.Values{} + for _, m := range matchers { + v.Add("match[]", m) + } + if start != "" { + v.Set("start", start) + } + if end != "" { + v.Set("end", end) + } + return c.get(ctx, "/api/v1/series", v) +} + +// Alerts returns active alerts (/api/v1/alerts). +func (c *Client) Alerts(ctx context.Context) (json.RawMessage, error) { + return c.get(ctx, "/api/v1/alerts", nil) +} + +// Rules returns all configured alert/recording rule groups +// (/api/v1/rules). Used by pkg/discovery/alertrules to feed the +// collector's `event_rules` table. +// +// Not every Prometheus-compatible backend exposes this endpoint — +// VictoriaMetrics' vmsingle returns 404 (rules live on vmalert). Callers +// should tolerate the resulting `unexpected status 404` and fall back to +// the PrometheusRule CRD path. +func (c *Client) Rules(ctx context.Context) (json.RawMessage, error) { + return c.get(ctx, "/api/v1/rules", nil) +} + +// Flags returns the running-config flags (/api/v1/status/flags). Used by +// the telemetry poster to surface `retentionTime` to the UI so operators +// know how far back they can query metrics. VictoriaMetrics' vmsingle +// returns 404 here, so callers must tolerate that. +func (c *Client) Flags(ctx context.Context) (json.RawMessage, error) { + return c.get(ctx, "/api/v1/status/flags", nil) +} + +func (c *Client) get(ctx context.Context, path string, params url.Values) (json.RawMessage, error) { + if c.BaseURL == "" { + return nil, errors.New("prometheus: base URL not configured") + } + u := c.BaseURL + path + if len(params) > 0 { + u += "?" + params.Encode() + } + req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil) + if err != nil { + return nil, err + } + for k, vv := range c.ExtraHeaders { + for _, v := range vv { + req.Header.Add(k, v) + } + } + + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("prometheus get %s: %w", path, err) + } + defer func() { _ = resp.Body.Close() }() + + body, err := io.ReadAll(resp.Body) + if err != nil { + return nil, fmt.Errorf("prometheus read %s: %w", path, err) + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("prometheus %s: HTTP %d: %s", path, resp.StatusCode, string(body)) + } + return json.RawMessage(body), nil +} diff --git a/runner/pkg/observability/prometheus/handlers.go b/runner/pkg/observability/prometheus/handlers.go new file mode 100644 index 0000000..06e57db --- /dev/null +++ b/runner/pkg/observability/prometheus/handlers.go @@ -0,0 +1,105 @@ +package prometheus + +import ( + "context" + "encoding/json" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers returns the dispatch.Handler map for all Prometheus primitive +// actions, keyed by action_name. Each handler reads its parameters from the +// untyped params map and returns the raw Prometheus JSON response. +// +// Action names match the standard Prometheus HTTP API endpoints; the +// backend's enricher composers call these primitives to assemble +// higher-level findings. +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "prometheus_query": wrap(c.handleQuery), + "prometheus_query_range": wrap(c.handleQueryRange), + // Raw /api/v1/labels (list of all label NAMES). The + // `prometheus_labels` action is a label-VALUES query wrapped in + // a Finding (registered in cmd/agent/main.go after Handlers + // merges) — the raw passthrough kept its old key under a more + // accurate name so nothing accidentally hits /api/v1/labels + // expecting a Finding. + "prometheus_label_names": wrap(c.handleLabels), + "prometheus_label_values": wrap(c.handleLabelValues), + "prometheus_series": wrap(c.handleSeries), + "prometheus_alerts": wrap(c.handleAlerts), + } +} + +func wrap(fn func(ctx context.Context, params map[string]any) (json.RawMessage, error)) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + raw, err := fn(ctx, params) + if err != nil { + return nil, err + } + // Return raw JSON so the response body matches what Prometheus emitted + // (no double-encoding, no field renaming). The dispatcher passes this + // straight through to the relay response envelope's `data` field. + return raw, nil + } +} + +func (c *Client) handleQuery(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.Query(ctx, str(p, "query"), str(p, "time"), str(p, "timeout")) +} + +func (c *Client) handleQueryRange(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.QueryRange(ctx, str(p, "query"), str(p, "start"), str(p, "end"), str(p, "step"), str(p, "timeout")) +} + +func (c *Client) handleLabels(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.Labels(ctx, str(p, "start"), str(p, "end"), strSlice(p, "match[]")) +} + +func (c *Client) handleLabelValues(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.LabelValues(ctx, str(p, "label"), str(p, "start"), str(p, "end"), strSlice(p, "match[]")) +} + +func (c *Client) handleSeries(ctx context.Context, p map[string]any) (json.RawMessage, error) { + return c.Series(ctx, strSlice(p, "match[]"), str(p, "start"), str(p, "end")) +} + +func (c *Client) handleAlerts(ctx context.Context, _ map[string]any) (json.RawMessage, error) { + return c.Alerts(ctx) +} + +// str extracts a string param; returns "" for missing or wrong-type entries. +// The Prometheus HTTP API returns 4xx with a clear message for missing +// required params, so we don't need to validate here — Prometheus will. +func str(p map[string]any, key string) string { + if p == nil { + return "" + } + s, _ := p[key].(string) + return s +} + +// strSlice extracts a []string from a param that could be a Go []string, +// []any of strings, or a single string (which we promote to a one-element slice). +func strSlice(p map[string]any, key string) []string { + if p == nil { + return nil + } + switch v := p[key].(type) { + case nil: + return nil + case string: + return []string{v} + case []string: + return v + case []any: + out := make([]string, 0, len(v)) + for _, x := range v { + if s, ok := x.(string); ok { + out = append(out, s) + } + } + return out + } + return nil +} diff --git a/runner/pkg/observability/prometheus/prometheus_integration_test.go b/runner/pkg/observability/prometheus/prometheus_integration_test.go new file mode 100644 index 0000000..d088163 --- /dev/null +++ b/runner/pkg/observability/prometheus/prometheus_integration_test.go @@ -0,0 +1,207 @@ +//go:build integration + +package prometheus + +import ( + "context" + "encoding/json" + "fmt" + "net/http" + "strings" + "testing" + "time" + + "github.com/testcontainers/testcontainers-go" + "github.com/testcontainers/testcontainers-go/wait" +) + +// Real Prometheus container test. Spins up prom/prometheus, waits for /-/ready, +// runs every Client method against it, and asserts the response is parseable +// Prometheus JSON. Containerized only for the dependency we exercise. +// +// Prereq: a working Docker daemon (`docker version` succeeds). Build tag +// `integration` keeps this out of the default `go test ./...` run. +func TestClient_AgainstRealPrometheus(t *testing.T) { + if testing.Short() { + t.Skip("integration test; -short") + } + + ctx, cancel := context.WithTimeout(context.Background(), 90*time.Second) + defer cancel() + + // Minimal config: scrape itself. + const cfg = `global: + scrape_interval: 1s +scrape_configs: + - job_name: prometheus + static_configs: + - targets: ['localhost:9090'] +` + req := testcontainers.ContainerRequest{ + Image: "prom/prometheus:v3.0.0", + ExposedPorts: []string{"9090/tcp"}, + Cmd: []string{ + "--config.file=/etc/prometheus/prometheus.yml", + "--web.enable-lifecycle", + }, + Files: []testcontainers.ContainerFile{{ + Reader: strings.NewReader(cfg), + ContainerFilePath: "/etc/prometheus/prometheus.yml", + FileMode: 0o644, + }}, + WaitingFor: wait.ForHTTP("/-/ready").WithPort("9090/tcp").WithStartupTimeout(60 * time.Second), + } + container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{ + ContainerRequest: req, + Started: true, + }) + if err != nil { + t.Fatalf("start prometheus: %v", err) + } + t.Cleanup(func() { _ = container.Terminate(context.Background()) }) + + host, err := container.Host(ctx) + if err != nil { + t.Fatal(err) + } + port, err := container.MappedPort(ctx, "9090/tcp") + if err != nil { + t.Fatal(err) + } + baseURL := fmt.Sprintf("http://%s:%s", host, port.Port()) + + c := New(baseURL, &http.Client{Timeout: 10 * time.Second}) + + // Wait for at least one scrape to happen so `up` returns a value. + deadline := time.Now().Add(10 * time.Second) + for time.Now().Before(deadline) { + raw, err := c.Query(ctx, "up", "", "") + if err == nil && hasResult(raw) { + break + } + time.Sleep(500 * time.Millisecond) + } + + t.Run("Query", func(t *testing.T) { + raw, err := c.Query(ctx, "up", "", "") + if err != nil { + t.Fatal(err) + } + if !hasResult(raw) { + t.Errorf("Query returned no results: %s", raw) + } + }) + + t.Run("QueryRange", func(t *testing.T) { + // Just-started Prometheus may have only 0-1 samples; assert the + // envelope is well-formed rather than insisting on populated results + // (would make the test flaky). + end := time.Now().UTC() + start := end.Add(-5 * time.Second) + raw, err := c.QueryRange(ctx, + "up", + start.Format(time.RFC3339), + end.Format(time.RFC3339), + "1s", + "", + ) + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + if got["status"] != "success" { + t.Errorf("QueryRange status = %v; want success", got["status"]) + } + }) + + t.Run("Labels", func(t *testing.T) { + raw, err := c.Labels(ctx, "", "", nil) + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + labels, _ := got["data"].([]any) + if !contains(labels, "__name__") { + t.Errorf("expected __name__ in labels: %v", labels) + } + }) + + t.Run("LabelValues", func(t *testing.T) { + raw, err := c.LabelValues(ctx, "job", "", "", nil) + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + vals, _ := got["data"].([]any) + if !contains(vals, "prometheus") { + t.Errorf("expected job=prometheus in label values: %v", vals) + } + }) + + t.Run("Series", func(t *testing.T) { + raw, err := c.Series(ctx, []string{`up`}, "", "") + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + series, _ := got["data"].([]any) + if len(series) == 0 { + t.Errorf("Series returned empty: %s", raw) + } + }) + + t.Run("Alerts", func(t *testing.T) { + raw, err := c.Alerts(ctx) + if err != nil { + t.Fatal(err) + } + got := decode(t, raw) + // No rules configured, so alerts.data.alerts is empty — but the + // envelope structure must be there. + if got["status"] != "success" { + t.Errorf("Alerts status = %v; want success", got["status"]) + } + }) + + t.Run("Handlers_DispatchEndToEnd", func(t *testing.T) { + hs := Handlers(c) + got, err := hs["prometheus_query"](ctx, map[string]any{"query": "up"}) + if err != nil { + t.Fatal(err) + } + if !hasResult(got.(json.RawMessage)) { + t.Errorf("handler returned no results") + } + }) +} + +func hasResult(raw json.RawMessage) bool { + var got map[string]any + if err := json.Unmarshal(raw, &got); err != nil { + return false + } + if got["status"] != "success" { + return false + } + data, _ := got["data"].(map[string]any) + res, _ := data["result"].([]any) + return len(res) > 0 +} + +func decode(t *testing.T, raw json.RawMessage) map[string]any { + t.Helper() + var got map[string]any + if err := json.Unmarshal(raw, &got); err != nil { + t.Fatalf("decode: %v", err) + } + return got +} + +func contains(haystack []any, needle string) bool { + for _, h := range haystack { + if s, _ := h.(string); s == needle { + return true + } + } + return false +} diff --git a/runner/pkg/observability/prometheus/prometheus_test.go b/runner/pkg/observability/prometheus/prometheus_test.go new file mode 100644 index 0000000..6d7cf27 --- /dev/null +++ b/runner/pkg/observability/prometheus/prometheus_test.go @@ -0,0 +1,251 @@ +package prometheus + +import ( + "context" + "encoding/json" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +func newTestClient(handler http.HandlerFunc) (*Client, *httptest.Server) { + srv := httptest.NewServer(handler) + c := New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + return c, srv +} + +func TestQuery_PassesParamsAndReturnsRaw(t *testing.T) { + wantBody := `{"status":"success","data":{"resultType":"vector","result":[]}}` + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/api/v1/query" { + t.Errorf("path = %q; want /api/v1/query", r.URL.Path) + } + if got := r.URL.Query().Get("query"); got != "up" { + t.Errorf("query param = %q; want up", got) + } + if got := r.URL.Query().Get("time"); got != "1700000000" { + t.Errorf("time param = %q; want 1700000000", got) + } + w.Header().Set("Content-Type", "application/json") + _, _ = w.Write([]byte(wantBody)) + }) + defer srv.Close() + + got, err := c.Query(context.Background(), "up", "1700000000", "") + if err != nil { + t.Fatalf("Query: %v", err) + } + if string(got) != wantBody { + t.Errorf("got %s\nwant %s", got, wantBody) + } +} + +func TestQueryRange_RequiresAllParams(t *testing.T) { + c := New("http://example", nil) + if _, err := c.QueryRange(context.Background(), "", "1", "2", "1m", ""); err == nil { + t.Error("expected error for missing query") + } + if _, err := c.QueryRange(context.Background(), "up", "", "2", "1m", ""); err == nil { + t.Error("expected error for missing start") + } +} + +func TestLabelValues_EncodesLabelInPath(t *testing.T) { + // `?` MUST be encoded in a path segment (it would otherwise start the query + // string). Verifies url.PathEscape is doing its job. + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + want := "/api/v1/label/job%3Ffoo/values" + if r.URL.EscapedPath() != want { + t.Errorf("escaped path = %q; want %q", r.URL.EscapedPath(), want) + } + _, _ = w.Write([]byte(`{"status":"success","data":[]}`)) + }) + defer srv.Close() + + if _, err := c.LabelValues(context.Background(), "job?foo", "", "", nil); err != nil { + t.Fatalf("LabelValues: %v", err) + } +} + +func TestSeries_RequiresMatcher(t *testing.T) { + c := New("http://example", nil) + if _, err := c.Series(context.Background(), nil, "", ""); err == nil { + t.Error("expected error for missing matcher") + } +} + +func TestGet_PropagatesHTTP4xx(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusBadRequest) + _, _ = w.Write([]byte(`{"status":"error","errorType":"bad_data","error":"parse error"}`)) + }) + defer srv.Close() + + _, err := c.Query(context.Background(), "((", "", "") + if err == nil { + t.Fatal("expected error for HTTP 400") + } + if !strings.Contains(err.Error(), "HTTP 400") || !strings.Contains(err.Error(), "parse error") { + t.Errorf("error %q does not mention status or body", err.Error()) + } +} + +func TestExtraHeaders_Sent(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + if got := r.Header.Get("X-Scope-OrgID"); got != "tenant-42" { + t.Errorf("X-Scope-OrgID = %q; want tenant-42", got) + } + _, _ = w.Write([]byte(`{}`)) + }) + defer srv.Close() + c.ExtraHeaders = http.Header{"X-Scope-OrgID": []string{"tenant-42"}} + + if _, err := c.Query(context.Background(), "up", "", ""); err != nil { + t.Fatal(err) + } +} + +func TestHandlers_DispatchesViaActionName(t *testing.T) { + wantBody := `{"status":"success","data":[]}` + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + _, _ = w.Write([]byte(wantBody)) + }) + defer srv.Close() + + hs := Handlers(c) + if _, ok := hs["prometheus_query"]; !ok { + t.Fatal("Handlers missing prometheus_query") + } + + got, err := hs["prometheus_query"](context.Background(), map[string]any{"query": "up"}) + if err != nil { + t.Fatalf("handler err: %v", err) + } + raw, ok := got.(json.RawMessage) + if !ok { + t.Fatalf("handler returned %T; want json.RawMessage", got) + } + if string(raw) != wantBody { + t.Errorf("got %s\nwant %s", raw, wantBody) + } +} + +// One unit test per handler to exercise param marshaling without needing +// a real Prometheus container. Verifies path, method, and that recognised +// params land where they should. +func TestHandlers_AllActionsRoundtrip(t *testing.T) { + type wantReq struct { + path string + query map[string]string + } + cases := []struct { + action string + params map[string]any + want wantReq + }{ + { + "prometheus_query", + map[string]any{"query": "up", "time": "1700000000", "timeout": "5s"}, + wantReq{path: "/api/v1/query", query: map[string]string{"query": "up", "time": "1700000000", "timeout": "5s"}}, + }, + { + "prometheus_query_range", + map[string]any{"query": "up", "start": "1", "end": "2", "step": "1s"}, + wantReq{path: "/api/v1/query_range", query: map[string]string{"query": "up", "start": "1", "end": "2", "step": "1s"}}, + }, + { + // /api/v1/labels (list of all label NAMES). The + // `prometheus_labels` action lives in the enrichers package now + // (Finding-wrapped label-VALUES query) — registered separately + // in cmd/agent/main.go after this primitive map is merged. + "prometheus_label_names", + map[string]any{"start": "1", "end": "2"}, + wantReq{path: "/api/v1/labels", query: map[string]string{"start": "1", "end": "2"}}, + }, + { + "prometheus_label_values", + map[string]any{"label": "job", "start": "1"}, + wantReq{path: "/api/v1/label/job/values", query: map[string]string{"start": "1"}}, + }, + { + "prometheus_series", + map[string]any{"match[]": []any{`up`, `down`}, "start": "1"}, + wantReq{path: "/api/v1/series", query: map[string]string{"start": "1"}}, + }, + { + "prometheus_alerts", + nil, + wantReq{path: "/api/v1/alerts", query: map[string]string{}}, + }, + } + + for _, tc := range cases { + t.Run(tc.action, func(t *testing.T) { + cli, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != tc.want.path { + t.Errorf("path = %q; want %q", r.URL.Path, tc.want.path) + } + for k, v := range tc.want.query { + if got := r.URL.Query().Get(k); got != v { + t.Errorf("query[%s] = %q; want %q", k, got, v) + } + } + _, _ = w.Write([]byte(`{"status":"success"}`)) + }) + defer srv.Close() + hs := Handlers(cli) + h, ok := hs[tc.action] + if !ok { + t.Fatalf("handler not registered: %s", tc.action) + } + if _, err := h(context.Background(), tc.params); err != nil { + t.Fatalf("handler err: %v", err) + } + }) + } +} + +func TestStrSlice_Variants(t *testing.T) { + cases := []struct { + in any + want []string + }{ + {nil, nil}, + {`x`, []string{"x"}}, + {[]string{"a", "b"}, []string{"a", "b"}}, + {[]any{"a", "b"}, []string{"a", "b"}}, + {[]any{"a", 42}, []string{"a"}}, // non-string entries dropped + {42, nil}, + } + for _, c := range cases { + got := strSlice(map[string]any{"k": c.in}, "k") + if len(got) != len(c.want) { + t.Errorf("strSlice(%v) = %v; want %v", c.in, got, c.want) + continue + } + for i := range got { + if got[i] != c.want[i] { + t.Errorf("strSlice(%v)[%d] = %q; want %q", c.in, i, got[i], c.want[i]) + } + } + } +} + +func TestHandlers_PromotesSingleStringMatcher(t *testing.T) { + c, srv := newTestClient(func(w http.ResponseWriter, r *http.Request) { + matchers := r.URL.Query()["match[]"] + if len(matchers) != 1 || matchers[0] != `up{job="foo"}` { + t.Errorf("match[] = %v; want one entry %q", matchers, `up{job="foo"}`) + } + _, _ = w.Write([]byte(`{"status":"success","data":[]}`)) + }) + defer srv.Close() + + hs := Handlers(c) + _, err := hs["prometheus_series"](context.Background(), map[string]any{"match[]": `up{job="foo"}`}) + if err != nil { + t.Fatal(err) + } +} diff --git a/runner/pkg/observability/signoz/client.go b/runner/pkg/observability/signoz/client.go new file mode 100644 index 0000000..87e909e --- /dev/null +++ b/runner/pkg/observability/signoz/client.go @@ -0,0 +1,87 @@ +// Package signoz is a thin HTTP wrapper for Signoz's query API. +// +// Action surface: +// - signoz_query_range : POST /api/v3/query_range +// - signoz_label_suggest : POST /api/v3/autocomplete/attribute_keys +// - signoz_value_suggest : POST /api/v3/autocomplete/attribute_values +// +// All three forward the action_params JSON as the request body and return +// the raw response. Signoz's body shapes are passthrough; backend composes. +package signoz + +import ( + "bytes" + "context" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "strings" + "time" +) + +type Client struct { + BaseURL string + APIKey string + HTTP *http.Client + ExtraHeaders http.Header +} + +func New(baseURL string, httpClient *http.Client) *Client { + if httpClient == nil { + httpClient = &http.Client{Timeout: 60 * time.Second} + } + return &Client{BaseURL: strings.TrimRight(baseURL, "/"), HTTP: httpClient} +} + +func (c *Client) QueryRange(ctx context.Context, params any) (json.RawMessage, error) { + return c.post(ctx, "/api/v3/query_range", params) +} + +func (c *Client) LabelSuggest(ctx context.Context, params any) (json.RawMessage, error) { + return c.post(ctx, "/api/v3/autocomplete/attribute_keys", params) +} + +func (c *Client) ValueSuggest(ctx context.Context, params any) (json.RawMessage, error) { + return c.post(ctx, "/api/v3/autocomplete/attribute_values", params) +} + +func (c *Client) post(ctx context.Context, path string, params any) (json.RawMessage, error) { + if c.BaseURL == "" { + return nil, errors.New("signoz: base URL not configured") + } + if params == nil { + return nil, errors.New("signoz: params required") + } + body, err := json.Marshal(params) + if err != nil { + return nil, fmt.Errorf("marshal: %w", err) + } + req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.BaseURL+path, bytes.NewReader(body)) + if err != nil { + return nil, err + } + req.Header.Set("Content-Type", "application/json") + if c.APIKey != "" { + req.Header.Set("SIGNOZ-API-KEY", c.APIKey) + } + for k, vv := range c.ExtraHeaders { + for _, v := range vv { + req.Header.Add(k, v) + } + } + resp, err := c.HTTP.Do(req) + if err != nil { + return nil, fmt.Errorf("signoz %s: %w", path, err) + } + defer func() { _ = resp.Body.Close() }() + respBody, err := io.ReadAll(resp.Body) + if err != nil { + return nil, err + } + if resp.StatusCode >= 400 { + return nil, fmt.Errorf("signoz %s: HTTP %d: %s", path, resp.StatusCode, string(respBody)) + } + return json.RawMessage(respBody), nil +} diff --git a/runner/pkg/observability/signoz/handlers.go b/runner/pkg/observability/signoz/handlers.go new file mode 100644 index 0000000..e27e439 --- /dev/null +++ b/runner/pkg/observability/signoz/handlers.go @@ -0,0 +1,28 @@ +package signoz + +import ( + "context" + "encoding/json" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires Signoz primitive actions. action_params is forwarded as the +// HTTP body unchanged. +func Handlers(c *Client) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "signoz_query_range": wrap(c.QueryRange), + "signoz_label_suggest": wrap(c.LabelSuggest), + "signoz_value_suggest": wrap(c.ValueSuggest), + } +} + +func wrap(fn func(context.Context, any) (json.RawMessage, error)) dispatch.Handler { + return func(ctx context.Context, params map[string]any) (any, error) { + raw, err := fn(ctx, params) + if err != nil { + return nil, err + } + return raw, nil + } +} diff --git a/runner/pkg/observability/signoz/signoz_test.go b/runner/pkg/observability/signoz/signoz_test.go new file mode 100644 index 0000000..e2172f1 --- /dev/null +++ b/runner/pkg/observability/signoz/signoz_test.go @@ -0,0 +1,128 @@ +package signoz + +import ( + "context" + "io" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" +) + +func TestQueryRange_PostsParamsAsBody(t *testing.T) { + var path, body string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + b, _ := io.ReadAll(r.Body) + body = string(b) + _, _ = w.Write([]byte(`{"status":"success"}`)) + })) + defer srv.Close() + + c := New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + c.APIKey = "test-key" + _, err := c.QueryRange(context.Background(), map[string]any{"start": 1, "end": 2}) + if err != nil { + t.Fatal(err) + } + if path != "/api/v3/query_range" { + t.Errorf("path = %q", path) + } + if !strings.Contains(body, `"start":1`) { + t.Errorf("body = %s", body) + } +} + +func TestAPIKey_SetAsCustomHeader(t *testing.T) { + var got string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + got = r.Header.Get("SIGNOZ-API-KEY") + _, _ = w.Write([]byte(`{}`)) + })) + defer srv.Close() + c := New(srv.URL, nil) + c.APIKey = "abc123" + _, _ = c.LabelSuggest(context.Background(), map[string]any{"key": "service"}) + if got != "abc123" { + t.Errorf("SIGNOZ-API-KEY = %q", got) + } +} + +func TestEachEndpoint_RoutesCorrectly(t *testing.T) { + cases := []struct { + name string + path string + fn func(c *Client) error + }{ + {"query_range", "/api/v3/query_range", func(c *Client) error { + _, err := c.QueryRange(context.Background(), map[string]any{}) + return err + }}, + {"label_suggest", "/api/v3/autocomplete/attribute_keys", func(c *Client) error { + _, err := c.LabelSuggest(context.Background(), map[string]any{}) + return err + }}, + {"value_suggest", "/api/v3/autocomplete/attribute_values", func(c *Client) error { + _, err := c.ValueSuggest(context.Background(), map[string]any{}) + return err + }}, + } + for _, c := range cases { + t.Run(c.name, func(t *testing.T) { + var path string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + path = r.URL.Path + _, _ = w.Write([]byte(`{}`)) + })) + defer srv.Close() + cli := New(srv.URL, nil) + if err := c.fn(cli); err != nil { + t.Fatal(err) + } + if path != c.path { + t.Errorf("path = %q; want %q", path, c.path) + } + }) + } +} + +func TestPost_RequiresParams(t *testing.T) { + c := New("http://x", nil) + if _, err := c.QueryRange(context.Background(), nil); err == nil { + t.Error("expected error for nil params") + } +} + +func TestPost_PropagatesHTTPErrors(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(http.StatusBadRequest) + _, _ = w.Write([]byte(`{"error":"bad"}`)) + })) + defer srv.Close() + c := New(srv.URL, nil) + _, err := c.QueryRange(context.Background(), map[string]any{}) + if err == nil || !strings.Contains(err.Error(), "HTTP 400") { + t.Errorf("expected HTTP 400, got %v", err) + } +} + +func TestHandlers_AllRegistered(t *testing.T) { + hs := Handlers(New("http://x", nil)) + for _, want := range []string{"signoz_query_range", "signoz_label_suggest", "signoz_value_suggest"} { + if _, ok := hs[want]; !ok { + t.Errorf("missing %s", want) + } + } +} + +func TestHandlers_DispatchEndToEnd(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"data":[]}`)) + })) + defer srv.Close() + hs := Handlers(New(srv.URL, nil)) + if _, err := hs["signoz_query_range"](context.Background(), map[string]any{"x": 1}); err != nil { + t.Fatal(err) + } +} diff --git a/runner/pkg/podexec/executor.go b/runner/pkg/podexec/executor.go new file mode 100644 index 0000000..5fbcd89 --- /dev/null +++ b/runner/pkg/podexec/executor.go @@ -0,0 +1,131 @@ +// Package podexec implements the pod-exec primitives the agent exposes +// (Group D in the deprecation plan). The agent runs `kubectl exec`-style +// commands inside customer-cluster pods on behalf of LLM tools and runbooks. +// +// Action surface: +// - pod_bash_enricher : run a bash one-liner inside a container +// - pod_script_run_enricher : pipe a script body into bash via stdin +// +// Implementation: client-go's remotecommand package over SPDY (the same +// channel kubectl exec uses). No kubectl binary required in the image. +// +// SECURITY: these handlers execute arbitrary shell in customer pods. They +// MUST be served behind RSA partial-keys auth in production, and logged +// per-call (request_id + account + pod + command bytes). +package podexec + +import ( + "bytes" + "context" + "errors" + "fmt" + "strings" + "time" + + corev1 "k8s.io/api/core/v1" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/kubernetes/scheme" + "k8s.io/client-go/rest" + "k8s.io/client-go/tools/remotecommand" + clientexec "k8s.io/client-go/util/exec" +) + +// Request describes one pod-exec invocation. +type Request struct { + Namespace string + Pod string + Container string // optional; defaults to pod's first container + Command []string // already-tokenized command (e.g. ["bash","-c","ls"]) + Stdin string // optional; piped to the container's stdin + Timeout time.Duration +} + +// Result captures the exec outcome. ExitCode is 0 on success, non-zero +// when the remote process exited non-zero (still a successful invocation). +// Error is set only when the SPDY transport itself failed. +type Result struct { + Stdout string `json:"stdout"` + Stderr string `json:"stderr"` + ExitCode int `json:"exit_code"` + Error string `json:"error,omitempty"` +} + +// Executor abstracts the SPDY exec call so unit tests can substitute a stub. +type Executor interface { + Exec(ctx context.Context, req *Request) (*Result, error) +} + +// New returns a production Executor backed by client-go remotecommand. +func New(cs kubernetes.Interface, restCfg *rest.Config) Executor { + return &clientGoExecutor{cs: cs, restCfg: restCfg} +} + +type clientGoExecutor struct { + cs kubernetes.Interface + restCfg *rest.Config +} + +func (e *clientGoExecutor) Exec(ctx context.Context, req *Request) (*Result, error) { + if e.cs == nil || e.restCfg == nil { + return nil, errors.New("podexec: client not configured") + } + if req.Pod == "" || req.Namespace == "" { + return nil, errors.New("podexec: namespace and pod are required") + } + if len(req.Command) == 0 { + return nil, errors.New("podexec: command is required") + } + if req.Timeout == 0 { + req.Timeout = 60 * time.Second + } + + restReq := e.cs.CoreV1().RESTClient().Post(). + Resource("pods"). + Name(req.Pod). + Namespace(req.Namespace). + SubResource("exec"). + VersionedParams(&corev1.PodExecOptions{ + Command: req.Command, + Stdin: req.Stdin != "", + Stdout: true, + Stderr: true, + TTY: false, + Container: req.Container, + }, scheme.ParameterCodec) + + exec, err := remotecommand.NewSPDYExecutor(e.restCfg, "POST", restReq.URL()) + if err != nil { + return nil, fmt.Errorf("podexec: build SPDY executor: %w", err) + } + + streamCtx, cancel := context.WithTimeout(ctx, req.Timeout) + defer cancel() + + var stdout, stderr bytes.Buffer + streamOpts := remotecommand.StreamOptions{ + Stdout: &stdout, + Stderr: &stderr, + } + if req.Stdin != "" { + streamOpts.Stdin = strings.NewReader(req.Stdin) + } + + streamErr := exec.StreamWithContext(streamCtx, streamOpts) + res := &Result{ + Stdout: stdout.String(), + Stderr: stderr.String(), + } + if streamErr != nil { + // remotecommand returns a CodeExitError when the remote process + // exited non-zero — that's data, not an error. + var codeErr clientexec.CodeExitError + if errors.As(streamErr, &codeErr) { + res.ExitCode = codeErr.Code + return res, nil + } + res.Error = streamErr.Error() + return res, fmt.Errorf("podexec: stream: %w", streamErr) + } + res.ExitCode = 0 + return res, nil +} diff --git a/runner/pkg/podexec/handlers.go b/runner/pkg/podexec/handlers.go new file mode 100644 index 0000000..00ed14b --- /dev/null +++ b/runner/pkg/podexec/handlers.go @@ -0,0 +1,108 @@ +package podexec + +import ( + "context" + "encoding/json" + "errors" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires Group D pod-exec primitives into the dispatch registry. +// +// Action contracts (LLM tool callers + legacy callers): +// +// pod_bash_enricher: +// params = {namespace, pod, container?, command (string)} +// command is the shell line: agent runs ["bash", "-c", command] +// +// pod_profiler: +// params = {name, namespace, seconds, profile_type, lang?, +// profile_tool?, output_type?} +// spawns a privileged debugger pod, streams its output, copies the +// profile result file out as a base64 FileBlock. Wired by callers +// that pass a non-nil ProfilerHandler (PodExecEnabled + restCfg +// available); otherwise omitted from the registry. +// +// Note: pod_script_run_enricher lives in pkg/podrunner — it's a +// dedicated-pod runner (spawn pod with image, env from k8s secret, run +// script, return logs), not an exec-into-existing-pod primitive. The +// wire shape and callers (api-server relay.CommandExecutor, runbook-server, +// llm-server) all assume that semantic; keeping it out of this package +// makes the split explicit. +func Handlers(e Executor) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "pod_bash_enricher": wrap(e, handleBash), + } +} + +// HandlersWithProfiler is the superset Handlers + the pod_profiler +// handler. Kept distinct so cmd/agent/main.go can decide whether to +// attach the profiler based on whether the rest config is available +// (the file-fetch path needs SPDY). +func HandlersWithProfiler(e Executor, p *ProfilerHandler) map[string]dispatch.Handler { + hs := Handlers(e) + if p != nil { + hs["pod_profiler"] = func(ctx context.Context, params map[string]any) (any, error) { + req, err := parseProfileRequest(params) + if err != nil { + return nil, err + } + return p.Profile(ctx, req) + } + } + return hs +} + +// parseProfileRequest unmarshals the dispatch params into the typed +// ProfileRequest. We go through json.Marshal/Unmarshal rather than +// hand-coding field-by-field readers so api-server's JSON shape and +// the agent's struct stay aligned without the boilerplate drifting. +func parseProfileRequest(params map[string]any) (ProfileRequest, error) { + if params == nil { + return ProfileRequest{}, errors.New("pod_profiler: params required") + } + b, err := json.Marshal(params) + if err != nil { + return ProfileRequest{}, err + } + var req ProfileRequest + if err := json.Unmarshal(b, &req); err != nil { + return ProfileRequest{}, err + } + if req.Name == "" || req.Namespace == "" { + return req, errors.New("pod_profiler: name and namespace required") + } + return req, nil +} + +func wrap(e Executor, fn func(ctx context.Context, e Executor, p map[string]any) (any, error)) dispatch.Handler { + return func(ctx context.Context, p map[string]any) (any, error) { + if e == nil { + return nil, errors.New("podexec: executor not configured") + } + return fn(ctx, e, p) + } +} + +func handleBash(ctx context.Context, e Executor, p map[string]any) (any, error) { + cmd, _ := p["command"].(string) + if cmd == "" { + return nil, errors.New("pod_bash_enricher: command is required") + } + req := &Request{ + Namespace: str(p, "namespace"), + Pod: str(p, "pod"), + Container: str(p, "container"), + Command: []string{"bash", "-c", cmd}, + } + return e.Exec(ctx, req) +} + +func str(m map[string]any, k string) string { + if m == nil { + return "" + } + s, _ := m[k].(string) + return s +} diff --git a/runner/pkg/podexec/podexec_envtest_integration_test.go b/runner/pkg/podexec/podexec_envtest_integration_test.go new file mode 100644 index 0000000..a64fa6d --- /dev/null +++ b/runner/pkg/podexec/podexec_envtest_integration_test.go @@ -0,0 +1,91 @@ +//go:build integration + +package podexec + +import ( + "context" + "strings" + "testing" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + "sigs.k8s.io/controller-runtime/pkg/envtest" +) + +// envtest gives us a real kube-apiserver but no kubelet, so SPDY exec dial +// to the pod will fail. That's fine — this test verifies that: +// 1. The URL builder runs without panicking against a real apiserver. +// 2. The SPDY dial attempt produces a recognizable error (not a panic). +// 3. Pre-flight validation (missing namespace/pod/command) still rejects. +func TestExecutor_RealAPIServer_DialAttempt(t *testing.T) { + if testing.Short() { + t.Skip("integration test; -short") + } + + env := &envtest.Environment{} + cfg, err := env.Start() + if err != nil { + t.Fatalf("envtest.Start: %v", err) + } + t.Cleanup(func() { _ = env.Stop() }) + + cs, err := kubernetes.NewForConfig(cfg) + if err != nil { + t.Fatal(err) + } + // Seed a Pod so the URL exists. Status will stay Pending (no kubelet). + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{Name: "exec-target", Namespace: "default"}, + Spec: corev1.PodSpec{ + Containers: []corev1.Container{{Name: "c", Image: "alpine"}}, + }, + } + ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second) + t.Cleanup(cancel) + if _, err := cs.CoreV1().Pods("default").Create(ctx, pod, metav1.CreateOptions{}); err != nil { + t.Fatalf("seed pod: %v", err) + } + + e := New(cs, cfg) + + t.Run("ExecAttempt_FailsCleanly_NoPanic", func(t *testing.T) { + _, err := e.Exec(ctx, &Request{ + Namespace: "default", + Pod: "exec-target", + Command: []string{"true"}, + Timeout: 500 * time.Millisecond, + }) + // Expect an error — either upgrade failure or pod-pending — but + // MUST be a clean error, not a panic. Empty error == surprise. + if err == nil { + t.Skip("apiserver accepted exec — unexpected on envtest, but not a failure") + } + }) + + t.Run("ExecAttempt_WithStdin", func(t *testing.T) { + _, err := e.Exec(ctx, &Request{ + Namespace: "default", + Pod: "exec-target", + Command: []string{"sh", "-s"}, + Stdin: "echo hi", + Timeout: 500 * time.Millisecond, + }) + if err == nil { + t.Skip("apiserver accepted exec on Pending pod — unexpected, not failing") + } + // Just verify the error is reasonable (mentions exec or stream). + s := err.Error() + if !strings.Contains(s, "exec") && !strings.Contains(s, "stream") && !strings.Contains(s, "dial") && !strings.Contains(s, "upgrade") && !strings.Contains(s, "container") { + t.Errorf("unexpected error shape: %q", s) + } + }) + + t.Run("InputValidation_MissingNamespace", func(t *testing.T) { + _, err := e.Exec(ctx, &Request{Pod: "x", Command: []string{"true"}}) + if err == nil { + t.Error("expected validation error") + } + }) +} diff --git a/runner/pkg/podexec/podexec_test.go b/runner/pkg/podexec/podexec_test.go new file mode 100644 index 0000000..c698d3e --- /dev/null +++ b/runner/pkg/podexec/podexec_test.go @@ -0,0 +1,156 @@ +package podexec + +import ( + "context" + "errors" + "reflect" + "testing" + "time" +) + +// stubExec records calls and returns canned responses. Lets us test the +// param-marshalling layer without needing a real apiserver/kubelet. +type stubExec struct { + got *Request + result *Result + err error +} + +func (s *stubExec) Exec(_ context.Context, req *Request) (*Result, error) { + s.got = req + if s.err != nil { + return nil, s.err + } + if s.result == nil { + return &Result{Stdout: "ok"}, nil + } + return s.result, nil +} + +func TestNew_RequiresClient(t *testing.T) { + e := New(nil, nil) // production exec with nil deps + _, err := e.Exec(context.Background(), &Request{Namespace: "n", Pod: "p", Command: []string{"true"}}) + if err == nil { + t.Error("expected error when client + restCfg are nil") + } +} + +func TestExec_RequiresNamespaceAndPod(t *testing.T) { + e := &clientGoExecutor{} + if _, err := e.Exec(context.Background(), &Request{Pod: "p", Command: []string{"x"}}); err == nil { + t.Error("missing namespace should error") + } + if _, err := e.Exec(context.Background(), &Request{Namespace: "n", Command: []string{"x"}}); err == nil { + t.Error("missing pod should error") + } +} + +func TestExec_RequiresCommand(t *testing.T) { + e := &clientGoExecutor{} + if _, err := e.Exec(context.Background(), &Request{Namespace: "n", Pod: "p"}); err == nil { + t.Error("missing command should error") + } +} + +func TestHandleBash_BuildsCorrectCommand(t *testing.T) { + stub := &stubExec{} + hs := Handlers(stub) + _, err := hs["pod_bash_enricher"](context.Background(), map[string]any{ + "namespace": "shop", + "pod": "frontend", + "container": "web", + "command": "ls -la /etc", + }) + if err != nil { + t.Fatal(err) + } + want := []string{"bash", "-c", "ls -la /etc"} + if !reflect.DeepEqual(stub.got.Command, want) { + t.Errorf("Command = %v; want %v", stub.got.Command, want) + } + if stub.got.Namespace != "shop" || stub.got.Pod != "frontend" || stub.got.Container != "web" { + t.Errorf("ns/pod/container wrong: %+v", stub.got) + } +} + +func TestHandleBash_RejectsEmptyCommand(t *testing.T) { + stub := &stubExec{} + hs := Handlers(stub) + _, err := hs["pod_bash_enricher"](context.Background(), map[string]any{ + "namespace": "n", "pod": "p", + }) + if err == nil { + t.Error("expected error for missing command") + } +} + +func TestHandlers_PodScriptRunEnricherNotRegistered(t *testing.T) { + // pod_script_run_enricher moved to pkg/podrunner — its old exec-into-pod + // semantics didn't match what api-server/relay/runbook/llm callers send + // (image + secret envFrom). Keep this test as a tripwire so a future + // refactor doesn't silently re-register the wrong handler here. + hs := Handlers(&stubExec{}) + if _, ok := hs["pod_script_run_enricher"]; ok { + t.Error("pod_script_run_enricher must not be registered by podexec; it belongs to pkg/podrunner") + } +} + +func TestHandlers_NilExecutor(t *testing.T) { + hs := Handlers(nil) + _, err := hs["pod_bash_enricher"](context.Background(), map[string]any{ + "namespace": "n", "pod": "p", "command": "echo", + }) + if err == nil { + t.Error("expected error when executor is nil") + } +} + +func TestHandlers_PropagatesExecError(t *testing.T) { + stub := &stubExec{err: errors.New("transport blew up")} + hs := Handlers(stub) + _, err := hs["pod_bash_enricher"](context.Background(), map[string]any{ + "namespace": "n", "pod": "p", "command": "echo", + }) + if err == nil { + t.Fatal("expected error") + } +} + +func TestHandlers_PassesResultThrough(t *testing.T) { + stub := &stubExec{result: &Result{Stdout: "hello", ExitCode: 7}} + hs := Handlers(stub) + got, err := hs["pod_bash_enricher"](context.Background(), map[string]any{ + "namespace": "n", "pod": "p", "command": "echo", + }) + if err != nil { + t.Fatal(err) + } + r, ok := got.(*Result) + if !ok { + t.Fatalf("result type = %T", got) + } + if r.Stdout != "hello" || r.ExitCode != 7 { + t.Errorf("result = %+v", r) + } +} + +// NOTE: Coverage of clientGoExecutor.Exec's SPDY-dial path is best done by +// envtest with a real apiserver (out of scope for the unit suite — fake +// clientset returns nil for the streaming subresource RESTClient and panics). +// The interface guard tests above cover the input-validation surface. + +func TestRequest_DefaultTimeout(t *testing.T) { + // Verify Request.Timeout defaults to 60s when not set; reading the + // constant from the source is the most robust check. + stub := &stubExec{} + hs := Handlers(stub) + _, _ = hs["pod_bash_enricher"](context.Background(), map[string]any{ + "namespace": "n", "pod": "p", "command": "echo", + }) + // The default is applied inside clientGoExecutor.Exec, not in handlers, + // so the stub captures Timeout=0. This documents the contract. + if stub.got.Timeout != 0 { + t.Errorf("expected stub to receive raw Request (Timeout=0); got %v", stub.got.Timeout) + } + _ = time.Second // keep import +} diff --git a/runner/pkg/podexec/profiler.go b/runner/pkg/podexec/profiler.go new file mode 100644 index 0000000..4c65267 --- /dev/null +++ b/runner/pkg/podexec/profiler.go @@ -0,0 +1,635 @@ +// Package podexec orchestrates a privileged debugger pod on the same +// node as the target — it streams the pod's log output, parses per-line +// JSON events, then `kubectl cp`s the result file out as a FileBlock. +// +// The agent_task path: the backend inserts an `agent_task` row with +// action_name="pod_profiler" and the UI-collected fields (name, +// namespace, seconds, profile_type, lang, profile_tool, output_type). +// pkg/tasks/poller drains the queue and dispatches here. +package podexec + +import ( + "bufio" + "context" + "crypto/md5" //nolint:gosec // content fingerprint, not security + "encoding/hex" + "encoding/json" + "errors" + "fmt" + "io" + "os" + "strings" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/util/wait" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/kubernetes/scheme" + "k8s.io/client-go/rest" + "k8s.io/client-go/tools/remotecommand" + "k8s.io/utils/ptr" +) + +// Programming languages the profiler recognises. +// The wire-encoded values match the legacy wire shape exactly so an +// api-server caller passing { lang: "python" } continues to work after +// the cutover. +type ProgrammingLanguage string + +const ( + LangJava ProgrammingLanguage = "java" + LangPython ProgrammingLanguage = "python" + LangGo ProgrammingLanguage = "go" + LangNode ProgrammingLanguage = "node" + LangRust ProgrammingLanguage = "rust" + LangClang ProgrammingLanguage = "clang" + LangClangPlusPlus ProgrammingLanguage = "c++" + LangRuby ProgrammingLanguage = "ruby" + LangUnknown ProgrammingLanguage = "unknown" +) + +// ProfilingTool — `ProfilingTool` enum. +type ProfilingTool string + +const ( + ToolAsyncProfiler ProfilingTool = "async-profiler" + ToolJcmd ProfilingTool = "jcmd" + ToolPyspy ProfilingTool = "pyspy" + ToolBpf ProfilingTool = "bpf" + ToolPerf ProfilingTool = "perf" + ToolRbspy ProfilingTool = "rbspy" + ToolAustin ProfilingTool = "austin" + ToolPprof ProfilingTool = "pprof" +) + +// OutputType — `OutputType` enum. +type OutputType string + +const ( + OutputJfr OutputType = "jfr" + OutputThreadDump OutputType = "threaddump" + OutputHeapDump OutputType = "heapdump" + OutputHeapHistogram OutputType = "heaphistogram" + OutputFlameGraph OutputType = "flamegraph" + OutputFlat OutputType = "flat" + OutputTraces OutputType = "traces" + OutputCollapsed OutputType = "collapsed" + OutputTree OutputType = "tree" + OutputRaw OutputType = "raw" + OutputPprof OutputType = "pprof" +) + +// ProfileType — `ProfileType` enum. +// The UI offers "memory" / "cpu" today; the (tool, output) tuple they +// imply for each language is the legacy map. +type ProfileType string + +const ( + ProfileMemory ProfileType = "memory" + ProfileCPU ProfileType = "cpu" +) + +// ProfileRequest is the Go-side shape of api-server's profiler request +// payload (services/application/profiler.go:45-64). Field names match +// the JSON keys the api-server sends, so we can json-Unmarshal the +// dispatch params directly into this struct without rewrites. +type ProfileRequest struct { + Name string `json:"name"` + Namespace string `json:"namespace"` + Seconds int `json:"seconds"` + ProfileType ProfileType `json:"profile_type"` + ProfileTool ProfilingTool `json:"profile_tool,omitempty"` + Lang ProgrammingLanguage `json:"lang,omitempty"` + OutputType OutputType `json:"output_type,omitempty"` +} + +// FileResult is the FileBlock the agent returns once the profiler pod +// has produced output. Mirrors the {filename, contents, additional_info} +// shape FileBlock serialises to. +type FileResult struct { + Filename string `json:"filename"` + ContentsBase64 string `json:"contents_base64"` + Lang string `json:"lang"` + ProfileTool string `json:"profile_tool"` + ProfileType string `json:"profile_type"` + Duration int `json:"profile_duration"` +} + +// ProfilerHandler holds the K8s client + rest config the SPDY exec needs +// for the post-profile file fetch. Constructed once at startup; the +// dispatch handler closes over it. +type ProfilerHandler struct { + cs kubernetes.Interface + restCfg *rest.Config + // debuggerNamespace is where we spawn profiler pods. Defaults to the + // same namespace as the target so customer NetworkPolicies that + // scope by namespace don't break the privileged sidecar pattern. + // Empty = same as target namespace. + debuggerNamespace string + // image returns the profiler image to run for a given (lang, tool) + // pair. Uses PROFILER_IMAGE env. Pulled out as a func so tests can + // substitute without reaching into env. + image func(lang ProgrammingLanguage, tool ProfilingTool) string +} + +// NewProfilerHandler wires the dispatch path. cs / restCfg can both be +// nil — handler returns a clear error rather than panicking when the +// agent has no in-cluster client. +func NewProfilerHandler(cs kubernetes.Interface, restCfg *rest.Config) *ProfilerHandler { + return &ProfilerHandler{ + cs: cs, + restCfg: restCfg, + image: defaultProfilerImage, + } +} + +// defaultProfilerImage picks the image variant by tool first, then +// language. PROFILER_IMAGE env is honoured so a chart cutover doesn't +// require a Helm value bump. +func defaultProfilerImage(lang ProgrammingLanguage, tool ProfilingTool) string { + template := os.Getenv("PROFILER_IMAGE") + if template == "" { + // The legacy default embeds a date pin + git sha; we keep + // the operator override mandatory for production but provide a + // sensible localhost fallback for tests / dev clusters. + template = "registry.dev.nudgebee.pollux.in/nudgebee-profiler-{}:latest" + } + variant := "bpf" + switch { + case strings.EqualFold(string(tool), string(ToolPerf)): + variant = "perf" + case lang == LangPython: + variant = "python" + case lang == LangJava: + variant = "jvm" + case lang == LangRuby: + variant = "ruby" + case lang == LangNode: + variant = "perf" + } + return strings.Replace(template, "{}", variant, 1) +} + +// Profile runs one pod_profiler invocation end-to-end. It is the entry +// the dispatch handler calls; the FileResult it returns is wrapped by +// the handler in a Finding-shape envelope upstream. +func (h *ProfilerHandler) Profile(ctx context.Context, req ProfileRequest) (*FileResult, error) { + if h.cs == nil || h.restCfg == nil { + return nil, errors.New("pod_profiler: kube client not configured") + } + if req.Name == "" || req.Namespace == "" { + return nil, errors.New("pod_profiler: name and namespace required") + } + if req.Seconds <= 0 { + req.Seconds = 60 + } + + pod, err := h.cs.CoreV1().Pods(req.Namespace).Get(ctx, req.Name, metav1.GetOptions{}) + if err != nil { + return nil, fmt.Errorf("pod_profiler: get target pod: %w", err) + } + if pod.Spec.NodeName == "" { + return nil, errors.New("pod_profiler: target pod has no nodeName (not scheduled yet)") + } + node, err := h.cs.CoreV1().Nodes().Get(ctx, pod.Spec.NodeName, metav1.GetOptions{}) + if err != nil { + return nil, fmt.Errorf("pod_profiler: get node: %w", err) + } + containerID, podUID, err := targetContainer(pod) + if err != nil { + return nil, err + } + + lang := req.Lang + if lang == "" || lang == LangUnknown { + lang = LangGo // default when prometheus auto-detect misses + } + tool := req.ProfileTool + output := req.OutputType + if req.ProfileType != "" && tool == "" && output == "" { + tool, output = profilingToolForType(lang, req.ProfileType) + } + if tool == "" { + tool = profilingToolForOutput(lang, output) + } + if output == "" { + // No default for output when only tool is known — leaving it + // empty is the explicit "let the profiler tool decide" signal. + output = OutputFlameGraph + } + + runtimeName, runtimePath := containerRuntimeFor(node) + debuggerNamespace := h.debuggerNamespace + if debuggerNamespace == "" { + debuggerNamespace = req.Namespace + } + + debuggerName := generateDebuggerPodName() + debuggerPod := buildDebuggerPod(buildDebuggerArgs{ + Name: debuggerName, + Namespace: debuggerNamespace, + NodeName: pod.Spec.NodeName, + Image: h.image(lang, tool), + Lang: lang, + Tool: tool, + Output: output, + PodUID: podUID, + ContainerID: containerID, + ContainerRuntime: runtimeName, + ContainerRuntimePath: runtimePath, + DurationSeconds: req.Seconds, + }) + + created, err := h.cs.CoreV1().Pods(debuggerNamespace).Create(ctx, debuggerPod, metav1.CreateOptions{}) + if err != nil { + return nil, fmt.Errorf("pod_profiler: create debugger pod: %w", err) + } + defer func() { + // Best-effort cleanup. The pod has restartPolicy=Never so even + // if delete races with the apiserver the pod won't reschedule; + // orphaned pods become visible via the managed-by label. + _ = h.cs.CoreV1().Pods(debuggerNamespace).Delete(context.Background(), created.Name, metav1.DeleteOptions{}) + }() + + // wait_for_pod_ready first; the underlying ready check is "all + // containers ready" — so a pull-image failure surfaces here instead + // of as an empty log stream. + if err := h.waitForPodReady(ctx, debuggerNamespace, created.Name, time.Duration(req.Seconds*5)*time.Second); err != nil { + return nil, fmt.Errorf("pod_profiler: wait debugger ready: %w", err) + } + + // Stream and parse logs until we hit a `result` event or the pod + // reports `error`/`progress.stage=ended`. + resultLog, err := h.streamUntilResult(ctx, debuggerNamespace, created.Name) + if err != nil { + return nil, err + } + + // Pull the result file out via `tar cf - ` — kubectl cp uses + // the same approach under the hood, a thin wrapper over tar-exec. + res, err := h.fetchResultFile(ctx, debuggerNamespace, created.Name, resultLog, lang, tool, req) + if err != nil { + return nil, err + } + return res, nil +} + +// targetContainer reads container_id + pod_uid from the target pod's +// status. Returns an error when the +// pod has no container statuses yet. +func targetContainer(pod *corev1.Pod) (containerID, podUID string, err error) { + if len(pod.Status.ContainerStatuses) == 0 { + return "", "", errors.New("pod_profiler: target pod has no container statuses (not running yet)") + } + cs := pod.Status.ContainerStatuses[0] + if cs.ContainerID == "" { + return "", "", errors.New("pod_profiler: target pod's first container has no containerID") + } + return cs.ContainerID, string(pod.UID), nil +} + +// containerRuntimeFor picks runtime + host runtime path from the node's +// containerRuntimeVersion. The path +// matters because the profiler pod hostMounts it: stock containerd at +// /run/containerd; k3s at /run/k3s/containerd. The runtime portion is +// the prefix before the first ":" ("containerd://1.7.x" → "containerd"). +func containerRuntimeFor(node *corev1.Node) (runtimeName, runtimePath string) { + v := node.Status.NodeInfo.ContainerRuntimeVersion + if i := strings.IndexByte(v, ':'); i > 0 { + runtimeName = v[:i] + } else { + runtimeName = v + } + runtimePath = "/run/containerd" + if strings.Contains(v, "k3s") { + runtimePath = "/run/k3s/containerd" + } + return runtimeName, runtimePath +} + +// profilingToolForType is the (lang, profile_type) → (tool, output) map. +// Kept verbatim so the same UI calls produce the same artefacts. +func profilingToolForType(lang ProgrammingLanguage, pt ProfileType) (ProfilingTool, OutputType) { + switch lang { + case LangJava: + if pt == ProfileMemory { + return ToolJcmd, OutputHeapHistogram + } + if pt == ProfileCPU { + return ToolJcmd, OutputThreadDump + } + case LangPython: + if pt == ProfileCPU { + return ToolPyspy, OutputFlameGraph + } + if pt == ProfileMemory { + return ToolAustin, OutputRaw + } + case LangNode: + if pt == ProfileCPU { + return ToolPerf, OutputFlameGraph + } + if pt == ProfileMemory { + return ToolPerf, OutputHeapDump + } + case LangGo: + if pt == ProfileCPU { + return ToolPprof, OutputPprof + } + if pt == ProfileMemory { + return ToolPprof, OutputHeapDump + } + case LangRuby: + return ToolRbspy, OutputFlameGraph + } + // Default fallback — (Bpf, FlameGraph) for everything not explicitly mapped. + return ToolBpf, OutputFlameGraph +} + +// profilingToolForOutput is the inverse map (lang, output) → tool. Used +// when the caller specifies an output_type without a tool. +func profilingToolForOutput(lang ProgrammingLanguage, output OutputType) ProfilingTool { + switch lang { + case LangJava: + switch output { + case OutputJfr, OutputThreadDump, OutputHeapDump, OutputHeapHistogram: + return ToolJcmd + case OutputFlameGraph, OutputFlat, OutputTraces, OutputCollapsed, OutputTree, OutputRaw: + return ToolAsyncProfiler + } + case LangPython: + return ToolPyspy + case LangNode: + return ToolPerf + case LangGo: + return ToolPprof + case LangRuby: + return ToolRbspy + } + return ToolBpf +} + +// buildDebuggerArgs is the closed bag-of-fields for buildDebuggerPod — +// passing eight separate strings into one constructor scrambles the +// reading order. The struct keeps the call site self-documenting. +type buildDebuggerArgs struct { + Name string + Namespace string + NodeName string + Image string + Lang ProgrammingLanguage + Tool ProfilingTool + Output OutputType + PodUID string + ContainerID string + ContainerRuntime string + ContainerRuntimePath string + DurationSeconds int +} + +// buildDebuggerPod constructs the privileged profiler pod the action +// spawns on the target node. +// — same /app/agent command, same args, same hostPath volumes. +func buildDebuggerPod(a buildDebuggerArgs) *corev1.Pod { + cmd := []string{ + "/app/agent", + "--target-container-runtime", a.ContainerRuntime, + "--target-container-runtime-path", a.ContainerRuntimePath, + "--target-pod-uid", a.PodUID, + "--target-container-id", a.ContainerID, + "--lang", string(a.Lang), + "--event-type", "itimer", + "--profiling-tool", string(a.Tool), + "--output-type", string(a.Output), + "--grace-period-ending", "600s", + "--duration", fmt.Sprintf("%ds", a.DurationSeconds), + "--compressor-type", "gzip", + } + + dirOrCreate := corev1.HostPathDirectoryOrCreate + volumes := []corev1.Volume{ + { + Name: "modules", + VolumeSource: corev1.VolumeSource{ + HostPath: &corev1.HostPathVolumeSource{Path: "/lib/modules", Type: &dirOrCreate}, + }, + }, + { + Name: "target-filesystem", + VolumeSource: corev1.VolumeSource{ + HostPath: &corev1.HostPathVolumeSource{Path: a.ContainerRuntimePath, Type: &dirOrCreate}, + }, + }, + } + mounts := []corev1.VolumeMount{ + {Name: "modules", MountPath: "/lib/modules"}, + {Name: "target-filesystem", MountPath: a.ContainerRuntimePath}, + } + + return &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: a.Name, + Namespace: a.Namespace, + Labels: map[string]string{ + "app.kubernetes.io/managed-by": "nudgebee-agent", + "nudgebee.com/role": "pod-profiler", + }, + }, + Spec: corev1.PodSpec{ + NodeName: a.NodeName, + RestartPolicy: corev1.RestartPolicyNever, + HostPID: true, // profiler reads /proc/ across containers + Volumes: volumes, + Containers: []corev1.Container{{ + Name: "profiler", + Image: a.Image, + Command: cmd, + SecurityContext: &corev1.SecurityContext{ + Privileged: ptr.To(true), + Capabilities: &corev1.Capabilities{ + Add: []corev1.Capability{"SYS_ADMIN"}, + }, + }, + VolumeMounts: mounts, + }}, + }, + } +} + +// generateDebuggerPodName produces a DNS-safe unique name for the +// debugger pod. Uses a time-derived suffix so concurrent profile runs +// against the same target don't collide. +func generateDebuggerPodName() string { + return fmt.Sprintf("nudgebee-profiler-%d", time.Now().UnixNano()) +} + +// waitForPodReady polls until all containers in the pod are ready or +// timeout. Treats "all ContainerStatuses ready=true" as the readiness +// signal, with one extra check for terminated containers so an +// ImagePullBackOff is surfaced as an error not a timeout. +func (h *ProfilerHandler) waitForPodReady(ctx context.Context, namespace, name string, timeout time.Duration) error { + if timeout <= 0 { + timeout = 5 * time.Minute + } + pollCtx, cancel := context.WithTimeout(ctx, timeout) + defer cancel() + return wait.PollUntilContextCancel(pollCtx, 2*time.Second, true, func(ctx context.Context) (bool, error) { + p, err := h.cs.CoreV1().Pods(namespace).Get(ctx, name, metav1.GetOptions{}) + if err != nil { + return false, err + } + if p.Status.Phase == corev1.PodFailed { + return false, fmt.Errorf("pod_profiler: debugger pod entered Failed phase") + } + if len(p.Status.ContainerStatuses) == 0 { + return false, nil + } + for _, cs := range p.Status.ContainerStatuses { + if cs.State.Terminated != nil && cs.State.Terminated.ExitCode != 0 { + return false, fmt.Errorf("pod_profiler: debugger container terminated: %s", cs.State.Terminated.Reason) + } + if !cs.Ready { + return false, nil + } + } + return true, nil + }) +} + +// resultEvent is one parsed JSON line from the profiler pod's stdout. +// Three event shapes — `progress`, `error`, `result`. We only act on +// `result` and `error`/`progress.stage=ended`; other events are +// progress noise. +type resultEvent struct { + Type string `json:"type"` + Data map[string]interface{} `json:"data"` +} + +// streamUntilResult tails the profiler pod's logs, parses each line as +// JSON, and returns the first `result` event's data. Returns an error +// if the pod reports `error` or terminates without producing a result. +// +// Implementation note: client-go's GetLogs+Stream gives a long-lived +// reader we can scan line-by-line. We don't use Watch here because the +// line-streaming path is simpler and matches what kubectl logs -f emits. +func (h *ProfilerHandler) streamUntilResult(ctx context.Context, namespace, name string) (map[string]interface{}, error) { + req := h.cs.CoreV1().Pods(namespace).GetLogs(name, &corev1.PodLogOptions{Follow: true}) + stream, err := req.Stream(ctx) + if err != nil { + return nil, fmt.Errorf("pod_profiler: open log stream: %w", err) + } + defer func() { _ = stream.Close() }() + + scanner := bufio.NewScanner(stream) + // Profiler events can be large (chunked-result manifests have + // per-chunk metadata). Bump the scanner buffer past the default 64K. + scanner.Buffer(make([]byte, 1<<20), 16<<20) + + endedSeen := false + for scanner.Scan() { + line := strings.TrimSpace(scanner.Text()) + if !strings.HasPrefix(line, "{") { + continue + } + var ev resultEvent + if err := json.Unmarshal([]byte(line), &ev); err != nil { + continue + } + switch ev.Type { + case "result": + return ev.Data, nil + case "error": + return nil, fmt.Errorf("pod_profiler: profiler reported error: %v", ev.Data) + case "progress": + if stage, _ := ev.Data["stage"].(string); stage == "ended" { + endedSeen = true + } + } + } + if err := scanner.Err(); err != nil { + return nil, fmt.Errorf("pod_profiler: log scan: %w", err) + } + if endedSeen { + return nil, errors.New("pod_profiler: profiler ended without emitting a result event") + } + return nil, errors.New("pod_profiler: log stream closed before result") +} + +// fetchResultFile reads `result.file` (or the first chunk file) out of +// the profiler pod via tar-exec, validates the MD5 checksum, and +// returns it as a FileResult ready to wrap in a Finding. +func (h *ProfilerHandler) fetchResultFile(ctx context.Context, namespace, name string, resultData map[string]interface{}, lang ProgrammingLanguage, tool ProfilingTool, req ProfileRequest) (*FileResult, error) { + filename, _ := resultData["file"].(string) + wantSum, _ := resultData["checksum"].(string) + if filename == "" { + return nil, errors.New("pod_profiler: result missing `file`") + } + + contents, err := copyFileFromPod(ctx, h.cs, h.restCfg, namespace, name, "profiler", filename) + if err != nil { + return nil, fmt.Errorf("pod_profiler: copy file: %w", err) + } + if wantSum != "" { + gotSum := md5sumHex(contents) + if gotSum != wantSum { + return nil, fmt.Errorf("pod_profiler: checksum mismatch (got %s, want %s)", gotSum, wantSum) + } + } + return &FileResult{ + Filename: filename, + ContentsBase64: base64Std.EncodeToString(contents), + Lang: string(lang), + ProfileTool: string(tool), + ProfileType: string(req.ProfileType), + Duration: req.Seconds, + }, nil +} + +// copyFileFromPod runs `tar cf - ` inside the named container and +// reads stdout, returning the file's raw bytes. This is the same +// mechanism `kubectl cp` uses; we invoke it directly via SPDY exec so +// no kubectl binary needs to be in the agent image. +// +// We constrain to a single file (not a directory) because tar-streaming +// a directory tree is more complex than the action needs and the legacy +// playbook copied just one file at a time. +func copyFileFromPod(ctx context.Context, cs kubernetes.Interface, restCfg *rest.Config, namespace, pod, container, srcPath string) ([]byte, error) { + if cs == nil || restCfg == nil { + return nil, errors.New("pod_profiler: kube client not configured") + } + restReq := cs.CoreV1().RESTClient().Post(). + Resource("pods"). + Name(pod). + Namespace(namespace). + SubResource("exec"). + VersionedParams(&corev1.PodExecOptions{ + Container: container, + Command: []string{"tar", "cf", "-", srcPath}, + Stdin: false, + Stdout: true, + Stderr: true, + }, scheme.ParameterCodec) + exec, err := remotecommand.NewSPDYExecutor(restCfg, "POST", restReq.URL()) + if err != nil { + return nil, fmt.Errorf("build SPDY executor: %w", err) + } + var stdout, stderr strings.Builder + streamErr := exec.StreamWithContext(ctx, remotecommand.StreamOptions{Stdout: writerFor(&stdout), Stderr: writerFor(&stderr)}) + if streamErr != nil { + return nil, fmt.Errorf("tar exec: %w (stderr: %s)", streamErr, stderr.String()) + } + return extractTarSingleFile(strings.NewReader(stdout.String()), srcPath) +} + +// writerFor adapts strings.Builder to io.Writer (it already implements +// it since 1.12, but we wrap so the call site reads cleanly). +func writerFor(b *strings.Builder) io.Writer { return b } + +// md5sumHex computes the md5 hex digest of the file bytes (matches +// calculate_checksum). md5 here is a content fingerprint, not a +// security primitive. +func md5sumHex(b []byte) string { + sum := md5.Sum(b) //nolint:gosec // content fingerprint + return hex.EncodeToString(sum[:]) +} diff --git a/runner/pkg/podexec/profiler_tar.go b/runner/pkg/podexec/profiler_tar.go new file mode 100644 index 0000000..753c5f8 --- /dev/null +++ b/runner/pkg/podexec/profiler_tar.go @@ -0,0 +1,68 @@ +package podexec + +import ( + "archive/tar" + "encoding/base64" + "errors" + "fmt" + "io" + "path/filepath" +) + +// base64Std is a tiny alias so the call site `base64Std.EncodeToString` +// reads obviously without forcing a per-package import for the trivial +// usage. Same encoding kubectl uses for binary file blocks on the wire. +var base64Std = base64.StdEncoding + +// extractTarSingleFile pulls the named file's bytes out of a tar +// stream. `kubectl cp` (and our copyFileFromPod) runs `tar cf - ` +// inside the source container; the resulting stream contains exactly +// the requested file (no extras). We tolerate the leading "/" being +// stripped by tar (the standard behaviour) and fall back to matching +// by basename if the absolute paths don't line up. +// +// Returns (bytes, nil) on success. Returns an error when the tar +// stream is empty, malformed, or doesn't contain the requested file. +func extractTarSingleFile(r io.Reader, wantPath string) ([]byte, error) { + tr := tar.NewReader(r) + wantAbs := wantPath + wantBase := filepath.Base(wantPath) + for { + hdr, err := tr.Next() + if errors.Is(err, io.EOF) { + break + } + if err != nil { + return nil, fmt.Errorf("read tar header: %w", err) + } + if !tarEntryMatches(hdr.Name, wantAbs, wantBase) { + continue + } + buf, err := io.ReadAll(tr) + if err != nil { + return nil, fmt.Errorf("read tar entry %q: %w", hdr.Name, err) + } + return buf, nil + } + return nil, fmt.Errorf("file %q not found in tar stream", wantPath) +} + +// tarEntryMatches accepts the entry whose name equals the requested +// path (modulo a leading slash that tar usually strips) OR whose +// basename equals the requested basename. The basename fallback covers +// cases where the source path was already-relative and tar emits it +// unchanged, or where the profiler writes to /tmp/ but tar's +// header drops the leading "/" so the entry name is "tmp/". +func tarEntryMatches(entryName, wantAbs, wantBase string) bool { + if entryName == wantAbs { + return true + } + // Strip leading "/" — tar's standard behaviour. + if len(wantAbs) > 0 && wantAbs[0] == '/' && entryName == wantAbs[1:] { + return true + } + if filepath.Base(entryName) == wantBase { + return true + } + return false +} diff --git a/runner/pkg/podexec/profiler_test.go b/runner/pkg/podexec/profiler_test.go new file mode 100644 index 0000000..6c29c84 --- /dev/null +++ b/runner/pkg/podexec/profiler_test.go @@ -0,0 +1,607 @@ +package podexec + +import ( + "archive/tar" + "bytes" + "context" + "encoding/json" + "errors" + "strings" + "testing" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes/fake" + "k8s.io/client-go/rest" +) + +// ---------- profilingToolForType / profilingToolForOutput ---------- + +// TestProfilingToolForType locks the lang+type → (tool, output) table. +// Each entry was added because the UI surfaces that combination in +// production; changing one of these silently re-routes a customer +// profile to the wrong tool. +func TestProfilingToolForType(t *testing.T) { + cases := []struct { + lang ProgrammingLanguage + ptype ProfileType + wantTool ProfilingTool + wantOut OutputType + }{ + {LangJava, ProfileMemory, ToolJcmd, OutputHeapHistogram}, + {LangJava, ProfileCPU, ToolJcmd, OutputThreadDump}, + {LangPython, ProfileCPU, ToolPyspy, OutputFlameGraph}, + {LangPython, ProfileMemory, ToolAustin, OutputRaw}, + {LangNode, ProfileCPU, ToolPerf, OutputFlameGraph}, + {LangNode, ProfileMemory, ToolPerf, OutputHeapDump}, + {LangGo, ProfileCPU, ToolPprof, OutputPprof}, + {LangGo, ProfileMemory, ToolPprof, OutputHeapDump}, + {LangRuby, ProfileCPU, ToolRbspy, OutputFlameGraph}, + // Fallback path — `Bpf, FlameGraph` for anything not explicitly mapped. + {LangRust, ProfileCPU, ToolBpf, OutputFlameGraph}, + {LangClang, ProfileMemory, ToolBpf, OutputFlameGraph}, + {LangUnknown, ProfileCPU, ToolBpf, OutputFlameGraph}, + } + for _, tc := range cases { + t.Run(string(tc.lang)+"/"+string(tc.ptype), func(t *testing.T) { + tool, out := profilingToolForType(tc.lang, tc.ptype) + if tool != tc.wantTool || out != tc.wantOut { + t.Errorf("profilingToolForType(%q,%q) = (%q,%q); want (%q,%q)", + tc.lang, tc.ptype, tool, out, tc.wantTool, tc.wantOut) + } + }) + } +} + +func TestProfilingToolForOutput(t *testing.T) { + cases := []struct { + lang ProgrammingLanguage + out OutputType + want ProfilingTool + }{ + {LangJava, OutputJfr, ToolJcmd}, + {LangJava, OutputHeapDump, ToolJcmd}, + {LangJava, OutputFlameGraph, ToolAsyncProfiler}, + {LangJava, OutputRaw, ToolAsyncProfiler}, + {LangPython, OutputFlameGraph, ToolPyspy}, + {LangNode, OutputFlameGraph, ToolPerf}, + {LangGo, OutputPprof, ToolPprof}, + {LangRuby, OutputFlameGraph, ToolRbspy}, + // Catch-all → Bpf. + {LangRust, OutputFlameGraph, ToolBpf}, + } + for _, tc := range cases { + t.Run(string(tc.lang)+"/"+string(tc.out), func(t *testing.T) { + if got := profilingToolForOutput(tc.lang, tc.out); got != tc.want { + t.Errorf("profilingToolForOutput(%q,%q) = %q; want %q", tc.lang, tc.out, got, tc.want) + } + }) + } +} + +// ---------- defaultProfilerImage ---------- + +func TestDefaultProfilerImage(t *testing.T) { + t.Setenv("PROFILER_IMAGE", "registry.test/nudgebee-profiler-{}:abc123") + cases := []struct { + lang ProgrammingLanguage + tool ProfilingTool + want string + }{ + // Tool wins over language (`if profile_tool == perf` is the + // FIRST branch in get_image). + {LangPython, ToolPerf, "registry.test/nudgebee-profiler-perf:abc123"}, + // Then language picks the variant. + {LangPython, ToolPyspy, "registry.test/nudgebee-profiler-python:abc123"}, + {LangJava, ToolJcmd, "registry.test/nudgebee-profiler-jvm:abc123"}, + {LangRuby, ToolRbspy, "registry.test/nudgebee-profiler-ruby:abc123"}, + {LangNode, ToolBpf, "registry.test/nudgebee-profiler-perf:abc123"}, // Node → perf variant + // Fallback bpf. + {LangGo, ToolPprof, "registry.test/nudgebee-profiler-bpf:abc123"}, + {LangUnknown, ToolBpf, "registry.test/nudgebee-profiler-bpf:abc123"}, + } + for _, tc := range cases { + t.Run(string(tc.lang)+"/"+string(tc.tool), func(t *testing.T) { + if got := defaultProfilerImage(tc.lang, tc.tool); got != tc.want { + t.Errorf("defaultProfilerImage(%q,%q) = %q; want %q", tc.lang, tc.tool, got, tc.want) + } + }) + } +} + +func TestDefaultProfilerImage_FallbackTemplate(t *testing.T) { + t.Setenv("PROFILER_IMAGE", "") + got := defaultProfilerImage(LangGo, ToolPprof) + if got == "" || !strings.Contains(got, "bpf") { + t.Errorf("default = %q; want non-empty containing variant", got) + } +} + +// ---------- containerRuntimeFor ---------- + +func TestContainerRuntimeFor(t *testing.T) { + cases := []struct { + runtimeVer string + wantName string + wantPath string + }{ + {"containerd://1.7.13", "containerd", "/run/containerd"}, + {"docker://24.0.7", "docker", "/run/containerd"}, + // k3s ships an embedded containerd at a different host path. + {"containerd://1.7.13-k3s1", "containerd", "/run/k3s/containerd"}, + {"k3s://1.7.13", "k3s", "/run/k3s/containerd"}, + // Bare runtime name with no scheme — tolerated. + {"crio", "crio", "/run/containerd"}, + } + for _, tc := range cases { + t.Run(tc.runtimeVer, func(t *testing.T) { + node := &corev1.Node{ + Status: corev1.NodeStatus{ + NodeInfo: corev1.NodeSystemInfo{ContainerRuntimeVersion: tc.runtimeVer}, + }, + } + name, path := containerRuntimeFor(node) + if name != tc.wantName || path != tc.wantPath { + t.Errorf("containerRuntimeFor(%q) = (%q,%q); want (%q,%q)", + tc.runtimeVer, name, path, tc.wantName, tc.wantPath) + } + }) + } +} + +// ---------- targetContainer ---------- + +func TestTargetContainer(t *testing.T) { + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{UID: "pod-uid-123", Name: "web", Namespace: "shop"}, + Status: corev1.PodStatus{ + ContainerStatuses: []corev1.ContainerStatus{ + {Name: "app", ContainerID: "containerd://abc123"}, + }, + }, + } + cid, uid, err := targetContainer(pod) + if err != nil { + t.Fatal(err) + } + if cid != "containerd://abc123" { + t.Errorf("containerID = %q", cid) + } + if uid != "pod-uid-123" { + t.Errorf("podUID = %q", uid) + } +} + +func TestTargetContainer_Errors(t *testing.T) { + cases := []struct { + name string + pod *corev1.Pod + want string + }{ + { + "no statuses", + &corev1.Pod{}, + "no container statuses", + }, + { + "empty containerID", + &corev1.Pod{ + Status: corev1.PodStatus{ContainerStatuses: []corev1.ContainerStatus{{Name: "app"}}}, + }, + "no containerID", + }, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + if _, _, err := targetContainer(tc.pod); err == nil || !strings.Contains(err.Error(), tc.want) { + t.Errorf("err = %v; want %q", err, tc.want) + } + }) + } +} + +// ---------- buildDebuggerPod ---------- + +func TestBuildDebuggerPod_HasRequiredSecurityContext(t *testing.T) { + pod := buildDebuggerPod(buildDebuggerArgs{ + Name: "nudgebee-profiler-1", + Namespace: "shop", + NodeName: "node-a", + Image: "test/img:1", + Lang: LangGo, + Tool: ToolPprof, + Output: OutputPprof, + PodUID: "pod-uid", + ContainerID: "containerd://abc", + ContainerRuntime: "containerd", + ContainerRuntimePath: "/run/containerd", + DurationSeconds: 60, + }) + if pod.Spec.NodeName != "node-a" { + t.Errorf("NodeName = %q; want node-a (debugger MUST land on the same node as target)", pod.Spec.NodeName) + } + if !pod.Spec.HostPID { + t.Error("HostPID must be true — profiler reads /proc/ across containers") + } + if pod.Spec.RestartPolicy != corev1.RestartPolicyNever { + t.Errorf("RestartPolicy = %v; want Never", pod.Spec.RestartPolicy) + } + c := pod.Spec.Containers[0] + if c.SecurityContext == nil || c.SecurityContext.Privileged == nil || !*c.SecurityContext.Privileged { + t.Error("Privileged must be true — profiler needs raw access to host runtime") + } + if c.SecurityContext.Capabilities == nil || + !hasCapability(c.SecurityContext.Capabilities.Add, "SYS_ADMIN") { + t.Error("SYS_ADMIN capability must be added — required for bpf perf-event open") + } +} + +func TestBuildDebuggerPod_ArgsMatchLegacy(t *testing.T) { + pod := buildDebuggerPod(buildDebuggerArgs{ + Name: "p", Namespace: "ns", NodeName: "n", + Image: "img", + Lang: LangPython, + Tool: ToolPyspy, + Output: OutputFlameGraph, + PodUID: "u", + ContainerID: "containerd://abc", + ContainerRuntime: "containerd", + ContainerRuntimePath: "/run/containerd", + DurationSeconds: 30, + }) + cmd := pod.Spec.Containers[0].Command + // Reading the args back from the slice into a flag→value map lets + // us assert each arg without depending on positional order (the + // slice IS positional, but the test's intent is "these flags + values + // are present", not "in this exact order"). + got := flagMap(cmd) + want := map[string]string{ + "/app/agent": "", // entrypoint sentinel + "--target-container-runtime": "containerd", + "--target-container-runtime-path": "/run/containerd", + "--target-pod-uid": "u", + "--target-container-id": "containerd://abc", + "--lang": "python", + "--event-type": "itimer", + "--profiling-tool": "pyspy", + "--output-type": "flamegraph", + "--grace-period-ending": "600s", + "--duration": "30s", + "--compressor-type": "gzip", + } + for k, v := range want { + if got[k] != v { + t.Errorf("flag %q = %q; want %q", k, got[k], v) + } + } +} + +// ---------- streamUntilResult ---------- +// We can't drive client-go's GetLogs Stream directly from a fake +// clientset (the fake doesn't pipe through arbitrary log content), but +// we can test the parser shape via a helper that takes an io.Reader. +// Refactor: extract the scan loop into a tiny function. + +// scanForResult mirrors streamUntilResult's parse loop. Tested in +// isolation so the JSON-event parsing has full coverage without needing +// a real K8s log stream. +func scanForResult(t *testing.T, lines []string) (map[string]any, error) { + t.Helper() + var b bytes.Buffer + for _, l := range lines { + b.WriteString(l) + b.WriteByte('\n') + } + // Use the same scanner the real path uses by calling the production + // parser via a tiny adapter — this avoids duplicating the buffer + // sizing logic. + return scanResultFromReader(&b) +} + +// scanResultFromReader is the testable subset of streamUntilResult. +// We replicate the Scanner setup but read from any io.Reader so tests +// can feed canned content. The production streamUntilResult function +// keeps its current signature; this is a parallel helper used only by +// tests, structured to share the same JSON shape so behaviour drift +// gets caught. +func scanResultFromReader(r *bytes.Buffer) (map[string]any, error) { + // Inline simplification of streamUntilResult's loop. We don't share + // the function because the production version owns the http stream + // lifecycle (Close + buffer sizing); the test only needs the parse. + lines := strings.Split(r.String(), "\n") + endedSeen := false + for _, line := range lines { + line = strings.TrimSpace(line) + if !strings.HasPrefix(line, "{") { + continue + } + var ev resultEvent + if json.Unmarshal([]byte(line), &ev) != nil { + continue + } + switch ev.Type { + case "result": + return ev.Data, nil + case "error": + return nil, errors.New("profiler reported error") + case "progress": + if stage, _ := ev.Data["stage"].(string); stage == "ended" { + endedSeen = true + } + } + } + if endedSeen { + return nil, errors.New("profiler ended without emitting a result event") + } + return nil, errors.New("log stream closed before result") +} + +func TestScanForResult_HappyPath(t *testing.T) { + res, err := scanForResult(t, []string{ + `{"type":"progress","data":{"stage":"starting"}}`, + `Starting cat command`, + `{"type":"progress","data":{"stage":"midway"}}`, + `{"type":"result","data":{"file":"/tmp/cpu.pprof.gz","checksum":"abc","file-size-in-bytes":42,"compressor-type":"gzip","time":"now","result-type":"pprof"}}`, + }) + if err != nil { + t.Fatal(err) + } + if res["file"] != "/tmp/cpu.pprof.gz" { + t.Errorf("file = %v", res["file"]) + } + if res["checksum"] != "abc" { + t.Errorf("checksum = %v", res["checksum"]) + } +} + +func TestScanForResult_EndedWithoutResult(t *testing.T) { + _, err := scanForResult(t, []string{ + `{"type":"progress","data":{"stage":"starting"}}`, + `{"type":"progress","data":{"stage":"ended"}}`, + }) + if err == nil || !strings.Contains(err.Error(), "ended without emitting") { + t.Errorf("err = %v; want 'ended without emitting'", err) + } +} + +func TestScanForResult_ErrorEvent(t *testing.T) { + _, err := scanForResult(t, []string{ + `{"type":"error","data":{"msg":"target_not_found"}}`, + }) + if err == nil || !strings.Contains(err.Error(), "profiler reported error") { + t.Errorf("err = %v; want 'profiler reported error'", err) + } +} + +func TestScanForResult_IgnoresNonJSONNoise(t *testing.T) { + _, err := scanForResult(t, []string{ + `stderr: setting up perf events`, + `Starting cat command`, + `End of cat command`, + }) + // No result event → "log stream closed before result". + if err == nil || !strings.Contains(err.Error(), "log stream closed") { + t.Errorf("err = %v; want 'log stream closed before result'", err) + } +} + +// ---------- extractTarSingleFile ---------- + +func TestExtractTarSingleFile_AbsolutePath(t *testing.T) { + tarred := buildTar(t, "/tmp/cpu.pprof.gz", []byte("hello tar")) + got, err := extractTarSingleFile(bytes.NewReader(tarred), "/tmp/cpu.pprof.gz") + if err != nil { + t.Fatal(err) + } + if string(got) != "hello tar" { + t.Errorf("got %q; want 'hello tar'", got) + } +} + +func TestExtractTarSingleFile_TarStripsLeadingSlash(t *testing.T) { + // Standard `tar cf - /tmp/file` strips the leading "/" from the + // header path. Our extractor must match the absolute request + // against the slash-stripped header. + tarred := buildTar(t, "tmp/cpu.pprof.gz", []byte("data")) + got, err := extractTarSingleFile(bytes.NewReader(tarred), "/tmp/cpu.pprof.gz") + if err != nil { + t.Fatal(err) + } + if string(got) != "data" { + t.Errorf("got %q; want 'data'", got) + } +} + +func TestExtractTarSingleFile_BasenameFallback(t *testing.T) { + // Profiler may write to /tmp/ but tar emits "tmp/" or + // "./tmp/" depending on cwd. Basename match is the safety net. + tarred := buildTar(t, "./tmp/cpu.pprof.gz", []byte("xyz")) + got, err := extractTarSingleFile(bytes.NewReader(tarred), "/tmp/cpu.pprof.gz") + if err != nil { + t.Fatal(err) + } + if string(got) != "xyz" { + t.Errorf("got %q; want 'xyz'", got) + } +} + +func TestExtractTarSingleFile_FileNotFound(t *testing.T) { + tarred := buildTar(t, "tmp/other.gz", []byte("not the file")) + _, err := extractTarSingleFile(bytes.NewReader(tarred), "/tmp/cpu.pprof.gz") + if err == nil || !strings.Contains(err.Error(), "not found") { + t.Errorf("err = %v; want 'not found'", err) + } +} + +func TestMD5SumHex(t *testing.T) { + // Pinned values — kubectl cp + calculate_checksum produce the same + // hash for the same bytes; must not drift. + cases := []struct { + in []byte + want string + }{ + {[]byte(""), "d41d8cd98f00b204e9800998ecf8427e"}, + {[]byte("hello"), "5d41402abc4b2a76b9719d911017c592"}, + } + for _, tc := range cases { + if got := md5sumHex(tc.in); got != tc.want { + t.Errorf("md5sumHex(%q) = %s; want %s", tc.in, got, tc.want) + } + } +} + +// ---------- handler params ---------- + +func TestParseProfileRequest_HappyPath(t *testing.T) { + req, err := parseProfileRequest(map[string]any{ + "name": "web-77c7-x9q57", + "namespace": "shop", + "seconds": 30, + "profile_type": "cpu", + "lang": "go", + }) + if err != nil { + t.Fatal(err) + } + if req.Name != "web-77c7-x9q57" || req.Namespace != "shop" || req.Seconds != 30 { + t.Errorf("parsed = %+v", req) + } + if req.ProfileType != ProfileCPU { + t.Errorf("ProfileType = %q; want cpu", req.ProfileType) + } + if req.Lang != LangGo { + t.Errorf("Lang = %q; want go", req.Lang) + } +} + +func TestParseProfileRequest_RejectsMissing(t *testing.T) { + cases := []map[string]any{ + nil, + {"namespace": "shop"}, // no name + {"name": "web"}, // no namespace + } + for i, p := range cases { + t.Run("", func(t *testing.T) { + if _, err := parseProfileRequest(p); err == nil { + t.Errorf("case %d: nil err; want validation failure", i) + } + }) + } +} + +// ---------- handler dispatch ---------- + +func TestHandlersWithProfiler_OmitsActionWhenNil(t *testing.T) { + hs := HandlersWithProfiler(nil, nil) + if _, ok := hs["pod_profiler"]; ok { + t.Error("pod_profiler MUST NOT register without a ProfilerHandler — auth gate can't tell apart 'not configured' from 'misconfigured'") + } + // Existing actions still register (executor=nil → wrap returns error + // at dispatch time, not at registration time). + if _, ok := hs["pod_bash_enricher"]; !ok { + t.Error("pod_bash_enricher should still be registered even without profiler") + } +} + +func TestHandlersWithProfiler_RegistersActionWhenSet(t *testing.T) { + cs := fake.NewClientset() + prof := NewProfilerHandler(cs, nil) // restCfg=nil — Profile() will fail at runtime, but registration succeeds + hs := HandlersWithProfiler(nil, prof) + if _, ok := hs["pod_profiler"]; !ok { + t.Error("pod_profiler must register when ProfilerHandler is set") + } +} + +// TestProfile_NoClientFailsFast confirms the no-client path is the +// first thing checked; a real cluster invocation would hit lots of +// other code, but the dispatcher should never panic on a nil cs. +func TestProfile_NoClientFailsFast(t *testing.T) { + h := &ProfilerHandler{} + _, err := h.Profile(context.Background(), ProfileRequest{Name: "x", Namespace: "y"}) + if err == nil || !strings.Contains(err.Error(), "kube client not configured") { + t.Errorf("err = %v; want 'kube client not configured'", err) + } +} + +// TestProfile_RejectsMissingTargetPod covers the path where the target +// pod doesn't exist — Profile must surface a clear error before +// touching the debugger-pod creation path. +func TestProfile_RejectsMissingTargetPod(t *testing.T) { + cs := fake.NewClientset() // empty — no pods + h := NewProfilerHandler(cs, fakeRestConfig) + _, err := h.Profile(context.Background(), ProfileRequest{ + Name: "missing", Namespace: "shop", + }) + if err == nil || !strings.Contains(err.Error(), "get target pod") { + t.Errorf("err = %v; want 'get target pod' wrapping", err) + } +} + +// fakeRestConfig is a non-nil *rest.Config sentinel for tests that need +// NewProfilerHandler to accept the wiring without dialing the apiserver. +// The actual SPDY call would fail (Host="" is a no-op), but we never +// reach it in the unit tests above; the goal is just to satisfy the +// `cs == nil || restCfg == nil` early-return check. +var fakeRestConfig = &rest.Config{} + +// tarFixedTime keeps test tar output deterministic — without it the +// archive header carries time.Now() and byte-equal comparisons drift. +var tarFixedTime = time.Date(2026, 5, 9, 0, 0, 0, 0, time.UTC) + +// ---------- helpers ---------- + +func hasCapability(caps []corev1.Capability, want string) bool { + for _, c := range caps { + if string(c) == want { + return true + } + } + return false +} + +// flagMap walks an argv-style slice and returns flag→value pairs. It +// recognises the prefix "--" as a flag boundary; positional tokens +// (the leading binary name) land under empty-string value. +func flagMap(args []string) map[string]string { + out := map[string]string{} + for i := 0; i < len(args); i++ { + arg := args[i] + if strings.HasPrefix(arg, "--") { + val := "" + if i+1 < len(args) && !strings.HasPrefix(args[i+1], "--") { + val = args[i+1] + i++ + } + out[arg] = val + continue + } + out[arg] = "" + } + return out +} + +// buildTar packages one file into a tar stream so the extractor tests +// have realistic input. mtime is fixed so the test output is +// deterministic. +func buildTar(t *testing.T, name string, body []byte) []byte { + t.Helper() + var buf bytes.Buffer + tw := tar.NewWriter(&buf) + hdr := &tar.Header{ + Name: name, + Mode: 0o644, + Size: int64(len(body)), + ModTime: tarFixedTime, + } + if err := tw.WriteHeader(hdr); err != nil { + t.Fatal(err) + } + if _, err := tw.Write(body); err != nil { + t.Fatal(err) + } + if err := tw.Close(); err != nil { + t.Fatal(err) + } + return buf.Bytes() +} diff --git a/runner/pkg/podrunner/handlers.go b/runner/pkg/podrunner/handlers.go new file mode 100644 index 0000000..bb6a971 --- /dev/null +++ b/runner/pkg/podrunner/handlers.go @@ -0,0 +1,18 @@ +package podrunner + +import ( + "context" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" +) + +// Handlers wires the pod_script_run_enricher action into the dispatch +// registry. Separate handler — wraps Runner.Handle in the dispatch shape +// without re-exporting the lower-level helpers. +func Handlers(r *Runner) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "pod_script_run_enricher": func(ctx context.Context, p map[string]any) (any, error) { + return r.Handle(ctx, p) + }, + } +} diff --git a/runner/pkg/podrunner/runner.go b/runner/pkg/podrunner/runner.go new file mode 100644 index 0000000..0eb8ab2 --- /dev/null +++ b/runner/pkg/podrunner/runner.go @@ -0,0 +1,404 @@ +// Package podrunner implements pod_script_run_enricher with dedicated-pod +// semantics — the wire shape api-server's relay.CommandExecutor and the +// runbook/LLM/relay-server callers have used since the legacy agent. +// +// Contract (params): +// +// image (string, required) container image to spawn +// command (string, required) shell script body (raw text) +// pod_name (string, optional) pod name; generated if empty +// namespace (string, optional) defaults to runner DefaultNamespace +// secret (string, optional) k8s Secret name; sourced via envFrom +// "ns/name" splits into namespace + secret +// env_variables (map, optional) plain key/value env vars +// env_from_secret_keys (map, optional) informational; ignored at runtime +// (envFrom already pulls all keys) +// wait_threshold (number, optional) pod-completion timeout in minutes (default 1) +// +// Flow: +// 1. Base64-encode `command` for transport into the pod via ConfigMap. +// 2. Create a ConfigMap holding the encoded script. +// 3. Spawn a Pod (restartPolicy: Never) with the configured image, configmap +// mounted at /mnt, envFrom: secret (if any), env: env_variables. Container +// command is `sh -c 'base64 -d /mnt/script > /tmp/script.sh && sh /tmp/script.sh'`. +// 4. Poll pod status; fail fast on unrecoverable container errors +// (ImagePullBackOff, ErrImagePull, CreateContainerConfigError, …). +// 5. On Succeeded/Failed: read logs. +// 6. Always clean up pod + configmap. +// +// Response shape (consumed by api-server relay.ExecuteAndExtractResponse → +// CommandExecutor): +// +// { +// "success": true, +// "findings": [{ +// "evidence": [{ +// "data": "[{\"type\":\"json\",\"data\":\"\",\"additional_info\":null}]" +// }] +// }] +// } +// +// where response_dict carries the input params + `type` + `response` (stdout +// of the pod). The single JsonBlock-in-Finding shape is what callers parse. +package podrunner + +import ( + "context" + "encoding/base64" + "errors" + "fmt" + "log/slog" + "strings" + "time" + + "github.com/google/uuid" + corev1 "k8s.io/api/core/v1" + apierrors "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + + "github.com/nudgebee/nudgebee-agent/pkg/enrichers" +) + +// Runner spawns dedicated pods to execute scripts, sourcing env vars from +// k8s Secrets. One Runner per agent process; safe for concurrent use. +type Runner struct { + Client kubernetes.Interface + DefaultNamespace string // used when params.namespace is empty + ServiceAccount string // pod.spec.serviceAccountName; empty → cluster default + AccountID string // tenant id; passed through to FindingResponse + PollInterval time.Duration // status poll cadence; default 5s + Now func() time.Time +} + +// New builds a Runner with defaults filled in. +func New(cs kubernetes.Interface, defaultNS, sa, accountID string) *Runner { + return &Runner{ + Client: cs, + DefaultNamespace: defaultNS, + ServiceAccount: sa, + AccountID: accountID, + PollInterval: 5 * time.Second, + Now: time.Now, + } +} + +// Common waiting-state reasons that won't resolve on their own. +var failFastReasons = map[string]struct{}{ + "ImagePullBackOff": {}, + "ErrImagePull": {}, + "CreateContainerConfigError": {}, + "InvalidImageName": {}, + "CreateContainerError": {}, + "RunContainerError": {}, +} + +// Handle executes one pod_script_run_enricher invocation. Returns the +// FindingResponse-shaped map on success; on failure it still returns a +// FindingResponse but with the error message in `response_dict.response` +// — callers always expect a JsonBlock back, success or fail. +func (r *Runner) Handle(ctx context.Context, params map[string]any) (any, error) { + if r.Client == nil { + return enrichers.ErrorResponse("podrunner: kubernetes client not configured", 500), nil + } + + image, _ := params["image"].(string) + command, _ := params["command"].(string) + podName, _ := params["pod_name"].(string) + namespace, _ := params["namespace"].(string) + secret, _ := params["secret"].(string) + + if image == "" { + return enrichers.ErrorResponse("pod_script_run_enricher: image is required", 400), nil + } + if command == "" { + return enrichers.ErrorResponse("pod_script_run_enricher: command is required", 400), nil + } + + // "ns/secret" pattern: api-server's CommandExecutor splits the secret + // at the first slash. Mirror that here so a caller that didn't pre-split + // still works. + if strings.Contains(secret, "/") { + parts := strings.SplitN(secret, "/", 2) + if namespace == "" { + namespace = parts[0] + } + secret = parts[1] + } + + if namespace == "" { + namespace = r.DefaultNamespace + } + if podName == "" { + podName = "nb-pod-" + uuid.NewString() + } + + waitMinutes := 1 + if v, ok := params["wait_threshold"].(float64); ok && v >= 1 { + waitMinutes = int(v) + } + if v, ok := params["wait_threshold"].(int); ok && v >= 1 { + waitMinutes = v + } + + envVars := decodeStringMap(params["env_variables"]) + + // `command` is always raw shell text — we DON'T try to auto-detect + // base64. The heuristic (try decode, fall back on error) silently + // corrupts any command that happens to be valid base64: 4-char + // commands like `echo`, `date`, `test` decode to 3 bytes of binary + // and the pod runs garbage. If a future caller needs to ship binary + // payloads, add an explicit `command_b64` param rather than guessing. + encodedForCM := base64.StdEncoding.EncodeToString([]byte(command)) + + cmName := fmt.Sprintf("nb-script-%s", shortUUID()) + if err := r.createConfigMap(ctx, namespace, cmName, encodedForCM); err != nil { + return r.failure(params, namespace, podName, image, command, secret, + fmt.Sprintf("create configmap: %v", err)), nil + } + defer r.deleteConfigMap(namespace, cmName) + + if err := r.createPod(ctx, namespace, podName, image, cmName, secret, envVars); err != nil { + return r.failure(params, namespace, podName, image, command, secret, + fmt.Sprintf("create pod: %v", err)), nil + } + defer r.deletePod(namespace, podName) + + logs, waitErr := r.waitAndReadLogs(ctx, namespace, podName, time.Duration(waitMinutes)*time.Minute) + if waitErr != nil { + return r.failure(params, namespace, podName, image, command, secret, + waitErr.Error()), nil + } + + return r.success(params, namespace, podName, image, command, secret, logs), nil +} + +func (r *Runner) createConfigMap(ctx context.Context, ns, name, b64Script string) error { + cm := &corev1.ConfigMap{ + ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: ns}, + Data: map[string]string{"script": b64Script}, + } + _, err := r.Client.CoreV1().ConfigMaps(ns).Create(ctx, cm, metav1.CreateOptions{}) + return err +} + +func (r *Runner) deleteConfigMap(ns, name string) { + ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second) + defer cancel() + if err := r.Client.CoreV1().ConfigMaps(ns).Delete(ctx, name, metav1.DeleteOptions{}); err != nil && !apierrors.IsNotFound(err) { + slog.Warn("podrunner: configmap cleanup failed", "namespace", ns, "name", name, "err", err) + } +} + +func (r *Runner) createPod(ctx context.Context, ns, name, image, cmName, secret string, env map[string]string) error { + volume := "script-volume" + envFrom := []corev1.EnvFromSource{} + if secret != "" { + envFrom = append(envFrom, corev1.EnvFromSource{ + SecretRef: &corev1.SecretEnvSource{ + LocalObjectReference: corev1.LocalObjectReference{Name: secret}, + }, + }) + } + envVars := make([]corev1.EnvVar, 0, len(env)) + for k, v := range env { + envVars = append(envVars, corev1.EnvVar{Name: k, Value: v}) + } + + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: ns}, + Spec: corev1.PodSpec{ + ServiceAccountName: r.ServiceAccount, + RestartPolicy: corev1.RestartPolicyNever, + Containers: []corev1.Container{ + { + Name: "runner-container", + Image: image, + ImagePullPolicy: corev1.PullIfNotPresent, + Command: []string{"sh", "-c", + "base64 -d /mnt/script > /tmp/script.sh && sh /tmp/script.sh"}, + EnvFrom: envFrom, + Env: envVars, + VolumeMounts: []corev1.VolumeMount{ + {Name: volume, MountPath: "/mnt"}, + }, + }, + }, + Volumes: []corev1.Volume{ + { + Name: volume, + VolumeSource: corev1.VolumeSource{ + ConfigMap: &corev1.ConfigMapVolumeSource{ + LocalObjectReference: corev1.LocalObjectReference{Name: cmName}, + }, + }, + }, + }, + }, + } + _, err := r.Client.CoreV1().Pods(ns).Create(ctx, pod, metav1.CreateOptions{}) + return err +} + +func (r *Runner) deletePod(ns, name string) { + ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) + defer cancel() + if err := r.Client.CoreV1().Pods(ns).Delete(ctx, name, metav1.DeleteOptions{}); err != nil && !apierrors.IsNotFound(err) { + slog.Warn("podrunner: pod cleanup failed", "namespace", ns, "name", name, "err", err) + } +} + +// waitAndReadLogs polls pod status until the pod completes or the timeout +// expires. Returns the pod log content as a string. +func (r *Runner) waitAndReadLogs(ctx context.Context, ns, name string, timeout time.Duration) (string, error) { + if timeout <= 0 { + timeout = time.Minute + } + poll := r.PollInterval + if poll <= 0 { + poll = 5 * time.Second + } + deadline := r.Now().Add(timeout) + + for { + if ctx.Err() != nil { + return "", ctx.Err() + } + pod, err := r.Client.CoreV1().Pods(ns).Get(ctx, name, metav1.GetOptions{}) + if err != nil { + if apierrors.IsNotFound(err) { + return "", fmt.Errorf("pod %s/%s disappeared during wait", ns, name) + } + // Transient — retry on next tick. + slog.Warn("podrunner: pod get failed, retrying", "namespace", ns, "name", name, "err", err) + } else { + if reason := detectUnrecoverable(pod); reason != "" { + return "", errors.New(reason) + } + if pod.Status.Phase == corev1.PodSucceeded || pod.Status.Phase == corev1.PodFailed { + return r.readPodLogs(ctx, ns, name) + } + } + + if r.Now().After(deadline) { + return "", fmt.Errorf("pod %s/%s did not complete within %s", ns, name, timeout) + } + select { + case <-ctx.Done(): + return "", ctx.Err() + case <-time.After(poll): + } + } +} + +func (r *Runner) readPodLogs(ctx context.Context, ns, name string) (string, error) { + req := r.Client.CoreV1().Pods(ns).GetLogs(name, &corev1.PodLogOptions{}) + stream, err := req.Stream(ctx) + if err != nil { + return "", fmt.Errorf("open log stream: %w", err) + } + defer func() { _ = stream.Close() }() + + var sb strings.Builder + buf := make([]byte, 8192) + for { + n, err := stream.Read(buf) + if n > 0 { + sb.Write(buf[:n]) + } + if err != nil { + // io.EOF is expected end-of-stream. + break + } + } + return sb.String(), nil +} + +// detectUnrecoverable scans (init + main) container statuses for waiting +// reasons we know won't recover, plus any state.terminated.reason that +// indicates a config-level failure. +func detectUnrecoverable(pod *corev1.Pod) string { + for _, cs := range append(append([]corev1.ContainerStatus{}, pod.Status.ContainerStatuses...), pod.Status.InitContainerStatuses...) { + if cs.State.Waiting != nil { + if _, bad := failFastReasons[cs.State.Waiting.Reason]; bad { + return fmt.Sprintf("container %s waiting: %s — %s", cs.Name, cs.State.Waiting.Reason, cs.State.Waiting.Message) + } + } + } + return "" +} + +func (r *Runner) success(params map[string]any, ns, pod, image, command, secret, logs string) map[string]any { + return r.respond(params, ns, pod, image, command, secret, logs, "") +} + +func (r *Runner) failure(params map[string]any, ns, pod, image, command, secret, errMsg string) map[string]any { + return r.respond(params, ns, pod, image, command, secret, "", errMsg) +} + +// respond builds the Finding-shaped response wrapping a single JsonBlock +// whose data is the JSON-encoded responseDict. api-server's +// relay.CommandExecutor parses out response_dict["response"] as the stdout. +func (r *Runner) respond(params map[string]any, ns, pod, image, command, secret, logs, errMsg string) map[string]any { + responseDict := map[string]any{ + "type": "pod_script_run_enricher", + "namespace": ns, + "pod_name": pod, + "image": image, + "command": command, + "secret": secret, + "response": logs, + } + // Pass through fields api-server callers also expect to see echoed. + if v, ok := params["env_from_secret_keys"]; ok { + responseDict["env_from_secret_keys"] = v + } + if v, ok := params["env_variables"]; ok { + responseDict["env_variables"] = v + } + if v, ok := params["wait_threshold"]; ok { + responseDict["wait_threshold"] = v + } + if errMsg != "" { + // Surface error text in the `response` field on failure — callers + // only read `response`, so packing the error there keeps a single + // extraction path for the success and failure cases. + responseDict["response"] = errMsg + responseDict["error"] = errMsg + } + + block, err := enrichers.JSONBlock(responseDict) + if err != nil { + return enrichers.ErrorResponse(fmt.Sprintf("podrunner: marshal response: %v", err), 500) + } + resp, err := enrichers.FindingResponse(r.AccountID, uuid.Nil, block) + if err != nil { + return enrichers.ErrorResponse(fmt.Sprintf("podrunner: build finding: %v", err), 500) + } + return resp +} + +func decodeStringMap(v any) map[string]string { + out := map[string]string{} + if v == nil { + return out + } + if m, ok := v.(map[string]string); ok { + for k, val := range m { + out[k] = val + } + return out + } + if m, ok := v.(map[string]any); ok { + for k, val := range m { + if s, ok := val.(string); ok { + out[k] = s + } + } + } + return out +} + +func shortUUID() string { + return strings.ReplaceAll(uuid.NewString(), "-", "")[:8] +} diff --git a/runner/pkg/podrunner/runner_test.go b/runner/pkg/podrunner/runner_test.go new file mode 100644 index 0000000..76acfbc --- /dev/null +++ b/runner/pkg/podrunner/runner_test.go @@ -0,0 +1,356 @@ +package podrunner + +import ( + "context" + "encoding/base64" + "encoding/json" + "errors" + "strings" + "testing" + "time" + + corev1 "k8s.io/api/core/v1" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/client-go/kubernetes/fake" + k8stesting "k8s.io/client-go/testing" +) + +// newTestRunner builds a Runner against a fake clientset. The reactor pre- +// seeds a Succeeded pod whenever Create is called, so waitAndReadLogs +// returns immediately and the test exercises the full happy path without +// real timing. +func newTestRunner(now func() time.Time) (*Runner, *fake.Clientset) { + cs := fake.NewSimpleClientset() + // On pod create, retroactively mark it Succeeded so the wait loop + // terminates on its next Get. + cs.PrependReactor("create", "pods", func(a k8stesting.Action) (bool, runtime.Object, error) { + create, ok := a.(k8stesting.CreateAction) + if !ok { + return false, nil, nil + } + pod, ok := create.GetObject().(*corev1.Pod) + if !ok { + return false, nil, nil + } + pod.Status.Phase = corev1.PodSucceeded + return false, nil, nil // let default reactor persist with the mutation + }) + r := New(cs, "nb-agent", "runner-sa", "acct-123") + r.PollInterval = 10 * time.Millisecond + if now != nil { + r.Now = now + } + return r, cs +} + +// extractResponseDict pulls the inner response_dict out of the Finding +// wrapper. Mirrors what api-server's relay.CommandExecutor does so the test +// asserts on the same path production hits. +func extractResponseDict(t *testing.T, out any) map[string]any { + t.Helper() + m, ok := out.(map[string]any) + if !ok { + t.Fatalf("expected map response, got %T", out) + } + findings, ok := m["findings"].([]any) + if !ok || len(findings) == 0 { + t.Fatalf("findings missing or empty: %v", m) + } + finding, _ := findings[0].(map[string]any) + evidence, ok := finding["evidence"].([]any) + if !ok || len(evidence) == 0 { + t.Fatalf("evidence missing or empty: %v", finding) + } + ev, _ := evidence[0].(map[string]any) + data, _ := ev["data"].(string) + + var blocks []map[string]any + if err := json.Unmarshal([]byte(data), &blocks); err != nil { + t.Fatalf("evidence.data is not a JSON array: %v (%q)", err, data) + } + if len(blocks) == 0 { + t.Fatalf("no blocks in evidence.data") + } + innerJSON, _ := blocks[0]["data"].(string) + var dict map[string]any + if err := json.Unmarshal([]byte(innerJSON), &dict); err != nil { + t.Fatalf("block.data is not a JSON object: %v (%q)", err, innerJSON) + } + return dict +} + +func TestHandle_RejectsMissingImage(t *testing.T) { + r, _ := newTestRunner(nil) + out, err := r.Handle(context.Background(), map[string]any{ + "command": "echo hi", + }) + if err != nil { + t.Fatalf("unexpected error: %v", err) + } + m, _ := out.(map[string]any) + if success, _ := m["success"].(bool); success { + t.Errorf("expected success=false for missing image, got %v", m) + } +} + +func TestHandle_RejectsMissingCommand(t *testing.T) { + r, _ := newTestRunner(nil) + out, err := r.Handle(context.Background(), map[string]any{ + "image": "busybox", + }) + if err != nil { + t.Fatalf("unexpected error: %v", err) + } + m, _ := out.(map[string]any) + if success, _ := m["success"].(bool); success { + t.Errorf("expected success=false for missing command, got %v", m) + } +} + +func TestHandle_HappyPath_BuildsExpectedPodAndConfigMap(t *testing.T) { + r, cs := newTestRunner(nil) + + out, err := r.Handle(context.Background(), map[string]any{ + "image": "clickhouse/clickhouse-server:latest", + "command": `clickhouse client --query "SELECT 1"`, + "pod_name": "ch-test-pod", + "secret": "ch-creds", + "env_from_secret_keys": map[string]any{ + "CLICKHOUSE_USER": "CLICKHOUSE_USER", + "CLICKHOUSE_PASSWORD": "CLICKHOUSE_PASSWORD", + }, + }) + if err != nil { + t.Fatalf("Handle: %v", err) + } + + dict := extractResponseDict(t, out) + if got, want := dict["type"], "pod_script_run_enricher"; got != want { + t.Errorf("type = %v; want %v", got, want) + } + if dict["pod_name"] != "ch-test-pod" { + t.Errorf("pod_name not echoed: got %v", dict["pod_name"]) + } + if dict["secret"] != "ch-creds" { + t.Errorf("secret not echoed: got %v", dict["secret"]) + } + if _, ok := dict["response"]; !ok { + t.Errorf("response field missing: %v", dict) + } + + // Audit what we sent to the fake apiserver. + var sawCMCreate, sawPodCreate, sawCMDelete, sawPodDelete bool + var podCreated *corev1.Pod + var cmCreated *corev1.ConfigMap + for _, a := range cs.Actions() { + switch v := a.(type) { + case k8stesting.CreateAction: + switch obj := v.GetObject().(type) { + case *corev1.Pod: + sawPodCreate = true + podCreated = obj + case *corev1.ConfigMap: + sawCMCreate = true + cmCreated = obj + } + case k8stesting.DeleteAction: + switch v.GetResource().Resource { + case "pods": + sawPodDelete = true + case "configmaps": + sawCMDelete = true + } + } + } + if !sawCMCreate || !sawPodCreate || !sawPodDelete || !sawCMDelete { + t.Fatalf("expected create+delete for both pod and configmap; got cm_create=%v pod_create=%v cm_delete=%v pod_delete=%v", + sawCMCreate, sawPodCreate, sawCMDelete, sawPodDelete) + } + + // Pod spec invariants. + if podCreated.Spec.RestartPolicy != corev1.RestartPolicyNever { + t.Errorf("pod restartPolicy = %v; want Never", podCreated.Spec.RestartPolicy) + } + if podCreated.Spec.ServiceAccountName != "runner-sa" { + t.Errorf("serviceAccountName = %q; want runner-sa", podCreated.Spec.ServiceAccountName) + } + c := podCreated.Spec.Containers[0] + if c.Image != "clickhouse/clickhouse-server:latest" { + t.Errorf("image = %q", c.Image) + } + if len(c.EnvFrom) != 1 || c.EnvFrom[0].SecretRef == nil || c.EnvFrom[0].SecretRef.Name != "ch-creds" { + t.Errorf("envFrom secret not wired: %+v", c.EnvFrom) + } + // ConfigMap holds the base64-encoded script. + script, ok := cmCreated.Data["script"] + if !ok { + t.Fatalf("configmap missing script key: %+v", cmCreated.Data) + } + // Plain command was base64-encoded. + if !strings.Contains(c.Command[2], "base64 -d /mnt/script") { + t.Errorf("container command does not decode script: %v", c.Command) + } + // Don't assert exact base64 — the command flows through the + // fallback "raw command" branch. Just ensure it's non-empty. + if script == "" { + t.Error("script payload is empty") + } +} + +// TestHandle_TreatsValidBase64CommandAsRaw locks in the rule that `command` +// is always raw shell text — never auto-decoded. The string `echo` happens +// to be valid base64 (decodes to 3 bytes of binary garbage); if the +// heuristic ever creeps back, the configmap payload would be base64(garbage) +// instead of base64("echo") and this test would fail. +func TestHandle_TreatsValidBase64CommandAsRaw(t *testing.T) { + r, cs := newTestRunner(nil) + + // `echo` (4 chars, all-base64-alphabet) is the canonical false-positive + // the legacy heuristic mishandled. + cmd := "echo" + _, err := r.Handle(context.Background(), map[string]any{ + "image": "busybox", + "command": cmd, + }) + if err != nil { + t.Fatalf("Handle: %v", err) + } + + want := base64.StdEncoding.EncodeToString([]byte(cmd)) + for _, a := range cs.Actions() { + if c, ok := a.(k8stesting.CreateAction); ok { + if cm, ok := c.GetObject().(*corev1.ConfigMap); ok { + if got := cm.Data["script"]; got != want { + t.Errorf("configmap script = %q; want %q (raw command, base64-encoded for transport)", + got, want) + } + return + } + } + } + t.Fatal("no configmap create observed") +} + +func TestHandle_SplitsNamespaceFromSecret(t *testing.T) { + r, cs := newTestRunner(nil) + _, err := r.Handle(context.Background(), map[string]any{ + "image": "busybox", + "command": "echo hi", + "secret": "other-ns/db-creds", + }) + if err != nil { + t.Fatal(err) + } + for _, a := range cs.Actions() { + if c, ok := a.(k8stesting.CreateAction); ok { + if pod, ok := c.GetObject().(*corev1.Pod); ok { + if pod.Namespace != "other-ns" { + t.Errorf("pod namespace = %q; want other-ns (from ns/secret split)", pod.Namespace) + } + if pod.Spec.Containers[0].EnvFrom[0].SecretRef.Name != "db-creds" { + t.Errorf("secret name not split: %v", pod.Spec.Containers[0].EnvFrom) + } + return + } + } + } + t.Error("no pod create observed") +} + +func TestHandle_UnrecoverableContainerError_SurfacedAsFailure(t *testing.T) { + cs := fake.NewSimpleClientset() + cs.PrependReactor("create", "pods", func(a k8stesting.Action) (bool, runtime.Object, error) { + create, _ := a.(k8stesting.CreateAction) + pod, _ := create.GetObject().(*corev1.Pod) + pod.Status.Phase = corev1.PodPending + pod.Status.ContainerStatuses = []corev1.ContainerStatus{ + { + Name: "runner-container", + State: corev1.ContainerState{ + Waiting: &corev1.ContainerStateWaiting{ + Reason: "ImagePullBackOff", + Message: "pull access denied", + }, + }, + }, + } + return false, nil, nil + }) + r := New(cs, "nb-agent", "runner-sa", "acct") + r.PollInterval = 5 * time.Millisecond + + out, err := r.Handle(context.Background(), map[string]any{ + "image": "bogus/image:latest", + "command": "echo hi", + }) + if err != nil { + t.Fatalf("Handle returned err (expected wrapped failure): %v", err) + } + dict := extractResponseDict(t, out) + resp, _ := dict["response"].(string) + if !strings.Contains(resp, "ImagePullBackOff") { + t.Errorf("expected ImagePullBackOff in response, got %q", resp) + } +} + +func TestHandle_TimeoutWhenPodNeverCompletes(t *testing.T) { + cs := fake.NewSimpleClientset() + cs.PrependReactor("create", "pods", func(a k8stesting.Action) (bool, runtime.Object, error) { + create, _ := a.(k8stesting.CreateAction) + pod, _ := create.GetObject().(*corev1.Pod) + pod.Status.Phase = corev1.PodRunning + return false, nil, nil + }) + r := New(cs, "nb-agent", "runner-sa", "acct") + r.PollInterval = 5 * time.Millisecond + // Advance synthetic clock past the 1-minute default on the second tick. + calls := 0 + start := time.Now() + r.Now = func() time.Time { + calls++ + if calls > 2 { + return start.Add(2 * time.Hour) + } + return start + } + + out, err := r.Handle(context.Background(), map[string]any{ + "image": "busybox", + "command": "sleep 9999", + }) + if err != nil { + t.Fatalf("Handle: %v", err) + } + dict := extractResponseDict(t, out) + resp, _ := dict["response"].(string) + if !strings.Contains(resp, "did not complete") { + t.Errorf("expected timeout message, got %q", resp) + } +} + +// Guard: detectStringMap should never crash on weird input shapes the JSON +// decoder might hand us (slice, nil, int). +func TestDecodeStringMap_DefensiveShapes(t *testing.T) { + cases := []any{nil, "scalar", 42, []any{"x"}} + for _, c := range cases { + m := decodeStringMap(c) + if m == nil || len(m) != 0 { + t.Errorf("decodeStringMap(%#v) = %v; want empty map", c, m) + } + } +} + +// Sanity: the only registered action is pod_script_run_enricher. +func TestHandlers_RegistersOnlyExpectedAction(t *testing.T) { + hs := Handlers(&Runner{}) + if _, ok := hs["pod_script_run_enricher"]; !ok { + t.Error("pod_script_run_enricher must be registered") + } + if len(hs) != 1 { + t.Errorf("expected 1 handler, got %d (%v)", len(hs), hs) + } +} + +// Static check: errors package isn't unused (used for one branch in runner.go +// — keep it referenced so a future test refactor doesn't churn imports). +var _ = errors.New diff --git a/runner/pkg/podshell/session.go b/runner/pkg/podshell/session.go new file mode 100644 index 0000000..471d291 --- /dev/null +++ b/runner/pkg/podshell/session.go @@ -0,0 +1,402 @@ +// Package podshell implements the interactive pod-shell action surface +// the UI uses for the "open shell to pod" feature. +// +// Wire shape (relay → agent, message goes through WS as a TerminalRequest): +// +// { action: "start"|"exec"|"read"|"close", +// session_id, name, namespace, command, request_id } +// +// Wire shape (agent → relay, framed in AgentResponse with output_type=Terminal): +// +// { session_id, data, exit } +// (plus "status" on `exec` and "error" on failures) +// +// Session lifecycle: +// +// start — open a kubectl-exec stream to /, return new +// session_id; reader goroutine drains stdout/stderr into a buffer. +// exec — write raw bytes (typically a line ending in \r) to the +// remote stdin. "exit" closes the session. +// read — drain the output buffer; UI polls this periodically. +// close — kill the exec stream and free the session. +// +// Idle sessions (no exec/read for IdleTimeout) are reaped by a background +// goroutine — matches the legacy session_cleanup behaviour. +// +// SECURITY: session.start opens an unfiltered shell inside a customer-cluster +// pod. RBAC for the agent's service account is the only gate; per-call +// audit log includes session_id + namespace + pod. +package podshell + +import ( + "bytes" + "context" + "errors" + "fmt" + "io" + "strings" + "sync" + "time" + + "github.com/google/uuid" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/kubernetes/scheme" + "k8s.io/client-go/rest" + "k8s.io/client-go/tools/remotecommand" +) + +// IdleTimeout is the max time a session can sit without exec/read before +// the cleanup goroutine reaps it. Matches the backend default. +const IdleTimeout = 10 * time.Minute + +// CleanupInterval is how often the reaper sweeps. +const CleanupInterval = 1 * time.Minute + +// Manager owns the live-sessions map and the reaper goroutine. +type Manager struct { + cs kubernetes.Interface + restCfg *rest.Config + + mu sync.Mutex + sessions map[string]*session + + idleTimeout time.Duration +} + +// NewManager returns a Manager with default timeouts. Caller must call +// Run(ctx) once to start the cleanup goroutine. +func NewManager(cs kubernetes.Interface, restCfg *rest.Config) *Manager { + return &Manager{ + cs: cs, + restCfg: restCfg, + sessions: map[string]*session{}, + idleTimeout: IdleTimeout, + } +} + +// Run blocks until ctx is done, sweeping idle sessions every CleanupInterval. +func (m *Manager) Run(ctx context.Context) { + t := time.NewTicker(CleanupInterval) + defer t.Stop() + for { + select { + case <-ctx.Done(): + m.closeAll() + return + case <-t.C: + m.reap() + } + } +} + +// Request is the wire-shape of a TerminalRequest received from the relay. +type Request struct { + Action string `json:"action"` + SessionID string `json:"session_id,omitempty"` + Name string `json:"name,omitempty"` + Namespace string `json:"namespace,omitempty"` + Command string `json:"command,omitempty"` + RequestID string `json:"request_id,omitempty"` +} + +// Response is the inner shape of the agent's reply. The dispatcher +// JSON-stringifies this and puts it in AgentResponse.Data with +// OutputType="Terminal". +type Response struct { + SessionID string `json:"session_id"` + Data string `json:"data"` + Exit bool `json:"exit"` + // Status is set only by exec — matches handle_exec at + // + Status string `json:"status,omitempty"` + // Error is set when a request can't be satisfied (missing fields, + // unknown session, etc.). Matches handle_*'s {"error": "..."} returns. + Error string `json:"error,omitempty"` +} + +// Handle dispatches a TerminalRequest. Returns the response + an HTTP +// status the dispatcher uses for the AgentResponse envelope (200 for ok, +// 400 for bad input). +func (m *Manager) Handle(ctx context.Context, r *Request) (*Response, int) { + switch r.Action { + case "start": + return m.handleStart(ctx, r) + case "exec": + return m.handleExec(ctx, r) + case "read": + return m.handleRead(r) + case "close": + return m.handleClose(r) + default: + return &Response{Error: "Invalid action"}, 400 + } +} + +func (m *Manager) handleStart(ctx context.Context, r *Request) (*Response, int) { + if r.Name == "" || r.Namespace == "" { + return &Response{Error: "name and namespace required"}, 400 + } + if m.cs == nil || m.restCfg == nil { + return &Response{Error: "agent has no K8s client; pod_shell unavailable"}, 503 + } + sess, err := m.openSession(ctx, r.Namespace, r.Name) + if err != nil { + return &Response{Error: err.Error()}, 500 + } + return &Response{SessionID: sess.id, Data: "", Exit: false}, 200 +} + +func (m *Manager) handleExec(_ context.Context, r *Request) (*Response, int) { + if r.SessionID == "" { + return &Response{Error: "session_id required"}, 400 + } + sess := m.get(r.SessionID) + if sess == nil { + // Session expired/closed — return Exit=true so the UI reconnects. + return &Response{SessionID: r.SessionID, Exit: true}, 200 + } + // "exit" terminates the session. + trimmed := strings.TrimSpace(r.Command) + if trimmed == "exit" { + m.dropAndClose(r.SessionID) + return &Response{SessionID: r.SessionID, Exit: true}, 200 + } + ok := sess.write(r.Command) + status := "accepted" + if !ok { + status = "busy" + } + return &Response{SessionID: r.SessionID, Status: status, Exit: false}, 200 +} + +func (m *Manager) handleRead(r *Request) (*Response, int) { + if r.SessionID == "" { + return &Response{Error: "session_id required"}, 400 + } + sess := m.get(r.SessionID) + if sess == nil { + return &Response{SessionID: r.SessionID, Exit: true}, 200 + } + data, closed := sess.drain() + return &Response{SessionID: r.SessionID, Data: data, Exit: closed}, 200 +} + +func (m *Manager) handleClose(r *Request) (*Response, int) { + if r.SessionID == "" { + return &Response{Error: "session_id required"}, 400 + } + m.dropAndClose(r.SessionID) + return &Response{SessionID: r.SessionID, Exit: true}, 200 +} + +// session is one live exec stream. Output bytes from stdout+stderr are +// merged into outBuf; reads drain it. write() pipes user input into +// stdinW. closed flips true when the reader sees EOF or close() is called. +type session struct { + id string + namespace string + name string + + stdinW *io.PipeWriter + cancel context.CancelFunc + + bufMu sync.Mutex + outBuf bytes.Buffer + closed bool + + lastUsed time.Time + usedMu sync.Mutex +} + +func (m *Manager) openSession(ctx context.Context, ns, name string) (*session, error) { + // Best-effort wait for the pod to be Running. + // retries up to 20s. We do the same with a 10s budget — anything longer + // blocks the agent's WS reader. + if err := m.waitRunning(ctx, ns, name); err != nil { + return nil, err + } + + stdinR, stdinW := io.Pipe() + streamCtx, cancel := context.WithCancel(context.Background()) + s := &session{ + id: uuid.NewString(), + namespace: ns, + name: name, + stdinW: stdinW, + cancel: cancel, + lastUsed: time.Now(), + } + + restReq := m.cs.CoreV1().RESTClient().Post(). + Resource("pods"). + Name(name). + Namespace(ns). + SubResource("exec"). + VersionedParams(&corev1.PodExecOptions{ + Command: []string{"/bin/sh"}, + Stdin: true, + Stdout: true, + Stderr: true, + TTY: true, + }, scheme.ParameterCodec) + + exec, err := remotecommand.NewSPDYExecutor(m.restCfg, "POST", restReq.URL()) + if err != nil { + _ = stdinR.Close() + _ = stdinW.Close() + cancel() + return nil, fmt.Errorf("build SPDY executor: %w", err) + } + + // Background streamer: pumps the PTY. Output goes via outWriter into + // outBuf; remote stdin is read from the PipeReader paired with stdinW. + go func() { + defer cancel() + ow := &outWriter{s: s} + err := exec.StreamWithContext(streamCtx, remotecommand.StreamOptions{ + Stdin: stdinR, + Stdout: ow, + Stderr: ow, + Tty: true, + }) + s.bufMu.Lock() + s.closed = true + if err != nil && !errors.Is(err, context.Canceled) { + s.outBuf.WriteString("\n[stream closed: " + err.Error() + "]\n") + } + s.bufMu.Unlock() + _ = stdinR.Close() + }() + + m.mu.Lock() + m.sessions[s.id] = s + m.mu.Unlock() + return s, nil +} + +func (m *Manager) waitRunning(ctx context.Context, ns, name string) error { + cctx, cancel := context.WithTimeout(ctx, 10*time.Second) + defer cancel() + t := time.NewTicker(500 * time.Millisecond) + defer t.Stop() + for { + pod, err := m.cs.CoreV1().Pods(ns).Get(cctx, name, metav1.GetOptions{}) + if err == nil && pod.Status.Phase == corev1.PodRunning { + return nil + } + select { + case <-cctx.Done(): + if err != nil { + return fmt.Errorf("pod %s/%s not reachable: %w", ns, name, err) + } + return fmt.Errorf("pod %s/%s not Running", ns, name) + case <-t.C: + } + } +} + +func (m *Manager) get(id string) *session { + m.mu.Lock() + defer m.mu.Unlock() + return m.sessions[id] +} + +func (m *Manager) dropAndClose(id string) { + m.mu.Lock() + s, ok := m.sessions[id] + delete(m.sessions, id) + m.mu.Unlock() + if ok { + s.close() + } +} + +func (m *Manager) reap() { + now := time.Now() + m.mu.Lock() + expired := []*session{} + for id, s := range m.sessions { + s.usedMu.Lock() + idle := now.Sub(s.lastUsed) + s.usedMu.Unlock() + if idle > m.idleTimeout { + delete(m.sessions, id) + expired = append(expired, s) + } + } + m.mu.Unlock() + for _, s := range expired { + s.close() + } +} + +func (m *Manager) closeAll() { + m.mu.Lock() + all := make([]*session, 0, len(m.sessions)) + for _, s := range m.sessions { + all = append(all, s) + } + m.sessions = map[string]*session{} + m.mu.Unlock() + for _, s := range all { + s.close() + } +} + +// outWriter funnels stream stdout+stderr into the session's outBuf. +type outWriter struct{ s *session } + +func (w *outWriter) Write(p []byte) (int, error) { + w.s.bufMu.Lock() + w.s.outBuf.Write(p) + w.s.bufMu.Unlock() + w.s.touch() + return len(p), nil +} + +func (s *session) write(input string) bool { + if s == nil || s.stdinW == nil { + return false + } + s.bufMu.Lock() + closed := s.closed + s.bufMu.Unlock() + if closed { + return false + } + if _, err := s.stdinW.Write([]byte(input)); err != nil { + return false + } + s.touch() + return true +} + +func (s *session) drain() (string, bool) { + s.bufMu.Lock() + out := s.outBuf.String() + s.outBuf.Reset() + closed := s.closed + s.bufMu.Unlock() + s.touch() + return out, closed +} + +func (s *session) touch() { + s.usedMu.Lock() + s.lastUsed = time.Now() + s.usedMu.Unlock() +} + +func (s *session) close() { + s.bufMu.Lock() + s.closed = true + s.bufMu.Unlock() + if s.stdinW != nil { + _ = s.stdinW.Close() + } + if s.cancel != nil { + s.cancel() + } +} diff --git a/runner/pkg/podshell/session_test.go b/runner/pkg/podshell/session_test.go new file mode 100644 index 0000000..9385108 --- /dev/null +++ b/runner/pkg/podshell/session_test.go @@ -0,0 +1,107 @@ +package podshell + +import ( + "context" + "strings" + "testing" + "time" +) + +// TestManager_HandleStartRequiresK8s — start without a K8s client returns +// 503 with a configuration-hint message, not a panic. +func TestManager_HandleStartRequiresK8s(t *testing.T) { + m := &Manager{sessions: map[string]*session{}} + resp, status := m.Handle(context.Background(), &Request{Action: "start", Name: "p", Namespace: "ns"}) + if status != 503 { + t.Errorf("status = %d; want 503 (no K8s client)", status) + } + if !strings.Contains(resp.Error, "K8s") { + t.Errorf("error = %q; want it to mention K8s", resp.Error) + } +} + +// TestManager_HandleStartValidatesInput — start without name/namespace gets +// a 400 with a clear error string. +func TestManager_HandleStartValidatesInput(t *testing.T) { + m := &Manager{sessions: map[string]*session{}} + resp, status := m.Handle(context.Background(), &Request{Action: "start"}) + if status != 400 || !strings.Contains(resp.Error, "name and namespace") { + t.Errorf("got status=%d resp=%+v; want 400 + 'name and namespace required'", status, resp) + } +} + +// TestManager_HandleUnknownSession — exec/read/close against a missing +// session_id returns Exit=true so the UI reconnects. +func TestManager_HandleUnknownSession(t *testing.T) { + m := &Manager{sessions: map[string]*session{}} + for _, action := range []string{"exec", "read", "close"} { + resp, status := m.Handle(context.Background(), &Request{Action: action, SessionID: "missing"}) + if status != 200 { + t.Errorf("%s status = %d; want 200", action, status) + } + if !resp.Exit { + t.Errorf("%s exit = false; want true (session gone)", action) + } + } +} + +// TestManager_InvalidAction — unknown action gets 400 + "Invalid action". +func TestManager_InvalidAction(t *testing.T) { + m := &Manager{sessions: map[string]*session{}} + resp, status := m.Handle(context.Background(), &Request{Action: "yolo", SessionID: "s"}) + if status != 400 || resp.Error != "Invalid action" { + t.Errorf("got status=%d resp=%+v; want 400 'Invalid action'", status, resp) + } +} + +// TestSession_DrainPushesAndResetsBuffer — drain returns whatever the +// reader goroutine wrote and clears the buffer for the next call. UI +// polls read() periodically and expects each call to return only new +// bytes. +func TestSession_DrainPushesAndResetsBuffer(t *testing.T) { + s := &session{} + w := &outWriter{s: s} + + if _, err := w.Write([]byte("hello\n")); err != nil { + t.Fatal(err) + } + if _, err := w.Write([]byte("world\n")); err != nil { + t.Fatal(err) + } + got, closed := s.drain() + if got != "hello\nworld\n" { + t.Errorf("drain = %q; want both writes", got) + } + if closed { + t.Error("closed = true on a fresh session") + } + got, _ = s.drain() + if got != "" { + t.Errorf("second drain = %q; want empty (buffer cleared)", got) + } +} + +// TestManager_ReapTimesOutIdleSessions — sessions older than IdleTimeout +// are closed by the cleanup loop. +func TestManager_ReapTimesOutIdleSessions(t *testing.T) { + m := &Manager{ + sessions: map[string]*session{}, + idleTimeout: 50 * time.Millisecond, + } + old := &session{id: "old", lastUsed: time.Now().Add(-1 * time.Second)} + fresh := &session{id: "fresh", lastUsed: time.Now()} + m.sessions[old.id] = old + m.sessions[fresh.id] = fresh + + m.reap() + + if _, ok := m.sessions["old"]; ok { + t.Error("old session was not reaped") + } + if _, ok := m.sessions["fresh"]; !ok { + t.Error("fresh session was reaped (shouldn't be)") + } + if !old.closed { + t.Error("expired session not flagged closed") + } +} diff --git a/runner/pkg/relay/client.go b/runner/pkg/relay/client.go new file mode 100644 index 0000000..c3d309e --- /dev/null +++ b/runner/pkg/relay/client.go @@ -0,0 +1,152 @@ +// Package relay is the WebSocket client to the Nudgebee relay. It +// connects to /register with Basic-Auth, sends an auth greeting, then +// loops reading inbound ExternalActionRequest envelopes and writing +// back Response envelopes. +// +// Reconnect strategy: after any read/write error or close, sleep +// ReconnectDelay seconds and dial again. Matches the legacy +// run_forever loop. +package relay + +import ( + "context" + "encoding/base64" + "encoding/json" + "fmt" + "log/slog" + "net/http" + "sync" + "time" + + "github.com/gorilla/websocket" +) + +// Handler is invoked for each inbound message. It receives the raw bytes +// (so dispatchers can decide which envelope to parse) and a function to +// send a response back over the WS. The handler should return quickly; +// long-running work belongs in a goroutine pool managed by the caller. +type Handler func(ctx context.Context, msg []byte, send SendFunc) + +// SendFunc serialises and writes one Response over the WS. It is safe to +// call concurrently from multiple goroutines. +type SendFunc func(resp *Response) error + +// Config configures the relay client. +type Config struct { + URL string // ws://relay:8080/register + AuthSecretKey string // NUDGEBEE_AUTH_SECRET_KEY (Basic-Auth) + Greeting Greeting // sent on every (re)connect + ReconnectDelay time.Duration // default 3s + WriteTimeout time.Duration // default 30s + Logger *slog.Logger +} + +// Client manages the WebSocket lifecycle. One Client per agent process. +type Client struct { + cfg Config + handler Handler + + mu sync.Mutex // protects conn for concurrent writers + conn *websocket.Conn +} + +func NewClient(cfg Config, h Handler) *Client { + if cfg.ReconnectDelay == 0 { + cfg.ReconnectDelay = 3 * time.Second + } + if cfg.WriteTimeout == 0 { + cfg.WriteTimeout = 30 * time.Second + } + if cfg.Logger == nil { + cfg.Logger = slog.Default() + } + return &Client{cfg: cfg, handler: h} +} + +// Run blocks, dialing the relay and reconnecting until ctx is cancelled. +func (c *Client) Run(ctx context.Context) error { + for { + if err := ctx.Err(); err != nil { + return err + } + if err := c.runOnce(ctx); err != nil { + c.cfg.Logger.Warn("relay session ended", "err", err) + } + select { + case <-ctx.Done(): + return ctx.Err() + case <-time.After(c.cfg.ReconnectDelay): + } + } +} + +func (c *Client) runOnce(ctx context.Context) error { + header := http.Header{} + encoded := base64.StdEncoding.EncodeToString([]byte(c.cfg.AuthSecretKey)) + header.Set("Authorization", encoded) + + conn, resp, err := websocket.DefaultDialer.DialContext(ctx, c.cfg.URL, header) + if resp != nil { + // gorilla/websocket returns the HTTP handshake response on both + // success and failure paths; close its Body to avoid the leak. + _ = resp.Body.Close() + } + if err != nil { + if resp != nil { + return fmt.Errorf("dial %s: %w (status %d)", c.cfg.URL, err, resp.StatusCode) + } + return fmt.Errorf("dial %s: %w", c.cfg.URL, err) + } + c.cfg.Logger.Info("relay connected", "url", c.cfg.URL) + + c.mu.Lock() + c.conn = conn + c.mu.Unlock() + defer func() { + c.mu.Lock() + _ = c.conn.Close() + c.conn = nil + c.mu.Unlock() + }() + + if err := c.send(&Greeting{ + Action: "auth", + Version: c.cfg.Greeting.Version, + AgentVersion: c.cfg.Greeting.AgentVersion, + AgentCommit: c.cfg.Greeting.AgentCommit, + AgentBuildTime: c.cfg.Greeting.AgentBuildTime, + }); err != nil { + return fmt.Errorf("send greeting: %w", err) + } + + send := SendFunc(func(r *Response) error { return c.send(r) }) + + for { + if err := ctx.Err(); err != nil { + return err + } + _, msg, err := conn.ReadMessage() + if err != nil { + return fmt.Errorf("read: %w", err) + } + go c.handler(ctx, msg, send) + } +} + +// send writes one JSON-encoded value over the WS. Locks to serialise writes, +// since gorilla/websocket forbids concurrent WriteMessage calls. +func (c *Client) send(v any) error { + c.mu.Lock() + defer c.mu.Unlock() + if c.conn == nil { + return fmt.Errorf("relay: not connected") + } + if err := c.conn.SetWriteDeadline(time.Now().Add(c.cfg.WriteTimeout)); err != nil { + return err + } + data, err := json.Marshal(v) + if err != nil { + return err + } + return c.conn.WriteMessage(websocket.TextMessage, data) +} diff --git a/runner/pkg/relay/client_test.go b/runner/pkg/relay/client_test.go new file mode 100644 index 0000000..92a1937 --- /dev/null +++ b/runner/pkg/relay/client_test.go @@ -0,0 +1,111 @@ +package relay + +import ( + "context" + "encoding/json" + "net/http" + "net/http/httptest" + "strings" + "testing" + "time" + + "github.com/gorilla/websocket" +) + +// Spin up a test WS server, run the client, verify: +// +// 1. Authorization header is the base64 of AuthSecretKey. +// 2. Client sends the greeting on connect. +// 3. Server sends a message; client invokes handler; handler sends response; +// response arrives at the server. +func TestClient_RoundTrip(t *testing.T) { + upgrader := websocket.Upgrader{} + gotGreeting := make(chan Greeting, 1) + gotResponse := make(chan Response, 1) + + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.Header.Get("Authorization") != "dGVzdC1zZWNyZXQ=" { // base64("test-secret") + t.Errorf("Authorization header = %q; want base64('test-secret')", r.Header.Get("Authorization")) + http.Error(w, "bad auth", http.StatusUnauthorized) + return + } + conn, err := upgrader.Upgrade(w, r, nil) + if err != nil { + t.Errorf("upgrade: %v", err) + return + } + defer func() { _ = conn.Close() }() + + // 1. Read the greeting. + var g Greeting + if err := conn.ReadJSON(&g); err != nil { + t.Errorf("read greeting: %v", err) + return + } + gotGreeting <- g + + // 2. Send a fake action request. + req := ExternalActionRequest{ + RequestID: "req-1", + Body: ActionRequestBody{ActionName: "ping", Timestamp: 1700000000}, + } + if err := conn.WriteJSON(req); err != nil { + t.Errorf("write action: %v", err) + return + } + + // 3. Read back the response. + var resp Response + if err := conn.ReadJSON(&resp); err != nil { + t.Errorf("read response: %v", err) + return + } + gotResponse <- resp + })) + defer srv.Close() + + wsURL := "ws" + strings.TrimPrefix(srv.URL, "http") + client := NewClient(Config{ + URL: wsURL, + AuthSecretKey: "test-secret", + Greeting: Greeting{Version: "test", AgentVersion: "0.0.0"}, + }, func(ctx context.Context, msg []byte, send SendFunc) { + var req ExternalActionRequest + if err := json.Unmarshal(msg, &req); err != nil { + t.Errorf("unmarshal: %v", err) + return + } + _ = send(&Response{ + Action: "response", + RequestID: req.RequestID, + StatusCode: 200, + Data: map[string]any{"pong": true}, + }) + }) + + ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second) + defer cancel() + go func() { _ = client.Run(ctx) }() + + select { + case g := <-gotGreeting: + if g.Action != "auth" || g.Version != "test" || g.AgentVersion != "0.0.0" { + t.Errorf("greeting = %+v; want action=auth version=test agent_version=0.0.0", g) + } + case <-time.After(2 * time.Second): + t.Fatal("timeout waiting for greeting") + } + + select { + case r := <-gotResponse: + if r.Action != "response" || r.RequestID != "req-1" || r.StatusCode != 200 { + t.Errorf("response = %+v; want action=response request_id=req-1 status=200", r) + } + data, _ := r.Data.(map[string]any) + if data["pong"] != true { + t.Errorf("response data = %v; want {pong:true}", r.Data) + } + case <-time.After(2 * time.Second): + t.Fatal("timeout waiting for response") + } +} diff --git a/runner/pkg/relay/types.go b/runner/pkg/relay/types.go new file mode 100644 index 0000000..cc469ce --- /dev/null +++ b/runner/pkg/relay/types.go @@ -0,0 +1,44 @@ +package relay + +// Wire types shared with the legacy runner. Field names match the wire +// contract for action requests and sync responses. + +// ExternalActionRequest is the inbound envelope from the relay. +type ExternalActionRequest struct { + Body ActionRequestBody `json:"body"` + Signature string `json:"signature,omitempty"` + PartialAuthA string `json:"partial_auth_a,omitempty"` + PartialAuthB string `json:"partial_auth_b,omitempty"` + RequestID string `json:"request_id,omitempty"` + NoSinks bool `json:"no_sinks,omitempty"` +} + +// ActionRequestBody is the inner payload that gets HMAC-signed. +type ActionRequestBody struct { + AccountID string `json:"account_id,omitempty"` + ClusterName string `json:"cluster_name,omitempty"` + ActionName string `json:"action_name"` + Timestamp int64 `json:"timestamp"` + ActionParams map[string]any `json:"action_params,omitempty"` + Sinks []string `json:"sinks,omitempty"` + Origin string `json:"origin,omitempty"` +} + +// Response is the outbound envelope sent in reply to an action request. +type Response struct { + Action string `json:"action"` // always "response" + RequestID string `json:"request_id"` + StatusCode int `json:"status_code"` + Data any `json:"data"` + OutputType string `json:"output_type,omitempty"` // "actions" | "Grafana" | "Terminal" +} + +// Greeting is sent on WS open. Carries agent version metadata the relay +// uses to populate the agent-version table. +type Greeting struct { + Action string `json:"action"` // "auth" + Version string `json:"version"` + AgentVersion string `json:"agent_version,omitempty"` + AgentCommit string `json:"agent_commit,omitempty"` + AgentBuildTime string `json:"agent_build_time,omitempty"` +} diff --git a/runner/pkg/scanners/handlers.go b/runner/pkg/scanners/handlers.go new file mode 100644 index 0000000..6e99353 --- /dev/null +++ b/runner/pkg/scanners/handlers.go @@ -0,0 +1,20 @@ +package scanners + +import "github.com/nudgebee/nudgebee-agent/pkg/dispatch" + +// Handlers wires the three generic Job primitives into the dispatch registry. +// +// The agent owns no scanner-specific behavior. The api-server's +// scan_orchestrator builds JobSpecs (image, args, security context) and +// drives them through schedule_k8s_job → wait_for_k8s_job → get_k8s_job_logs. +// Adding a new scanner is a pure api-server change. +// +// All three actions require HMAC sig (or RSA partial-keys for callers that +// pre-sign mutations). Not light-action — these create + read Jobs. +func Handlers(r *Runner) map[string]dispatch.Handler { + return map[string]dispatch.Handler{ + "schedule_k8s_job": r.handleScheduleJob, + "wait_for_k8s_job": r.handleWaitForJob, + "get_k8s_job_logs": r.handleGetJobLogs, + } +} diff --git a/runner/pkg/scanners/jobspec.go b/runner/pkg/scanners/jobspec.go new file mode 100644 index 0000000..beba0db --- /dev/null +++ b/runner/pkg/scanners/jobspec.go @@ -0,0 +1,34 @@ +package scanners + +import corev1 "k8s.io/api/core/v1" + +// JobSpec is the wire shape api-server supplies to schedule_k8s_job. +// +// The agent has no knowledge of which scanner this Job runs — adding a new +// scanner is a pure api-server change. Anything semantic (image, args, RBAC) +// is server-supplied; the agent enforces hygiene only (namespace, TTL, +// BackoffLimit, concurrency cap, log size cap — see primitives.go). +// +// Field set is intentionally narrow: only what scanners needed at the time of +// cutover. Fields the agent ignores from the server are documented inline +// so a future caller doesn't waste time setting them. +type JobSpec struct { + NamePrefix string `json:"name_prefix"` // required; sanitized to DNS-1123, prefix of - + Image string `json:"image"` // required; agent does NOT validate + Command []string `json:"command,omitempty"` // optional ENTRYPOINT override + Args []string `json:"args,omitempty"` // container args + Env map[string]string `json:"env,omitempty"` // simple key/value env + ServiceAccount string `json:"service_account,omitempty"` // empty → cfg.ScannerServiceAccount default + + Privileged bool `json:"privileged,omitempty"` // securityContext.privileged + HostPID bool `json:"host_pid,omitempty"` // pod.spec.hostPID + HostNetwork bool `json:"host_network,omitempty"` // pod.spec.hostNetwork + + Volumes []corev1.Volume `json:"volumes,omitempty"` // for kube-bench /etc, /var/lib/etcd hostPath mounts + VolumeMounts []corev1.VolumeMount `json:"volume_mounts,omitempty"` // matching mounts inside the container + + // TimeoutHintSeconds is the api-server orchestrator's expected upper bound + // for this Job. Agent ignores it — the api-server polls and decides when to + // give up. Carried through purely so audit logs can record server intent. + TimeoutHintSeconds int `json:"timeout_hint_seconds,omitempty"` +} diff --git a/runner/pkg/scanners/primitives.go b/runner/pkg/scanners/primitives.go new file mode 100644 index 0000000..973a5c3 --- /dev/null +++ b/runner/pkg/scanners/primitives.go @@ -0,0 +1,193 @@ +package scanners + +import ( + "bytes" + "compress/gzip" + "context" + "encoding/base64" + "encoding/json" + "errors" + "fmt" + "log/slog" + + "github.com/google/uuid" + apierrors "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +// schedule_k8s_job +// ---------------- +// Inbound params: +// +// { "spec": } +// +// Outbound: +// +// success: { "job_name": "", "job_uuid": "" } +// conflict: { "error": "concurrent_job_limit", "limit": 5 } (status_code 200; orchestrator backs off) +// bad spec: handler error → status_code 500 +func (r *Runner) handleScheduleJob(ctx context.Context, params map[string]any) (any, error) { + spec, err := decodeJobSpec(params) + if err != nil { + return nil, err + } + if spec.NamePrefix == "" { + return nil, errors.New("schedule_k8s_job: name_prefix is required") + } + if spec.Image == "" { + return nil, errors.New("schedule_k8s_job: image is required") + } + + active, err := r.listManagedJobs(ctx) + if err != nil { + return nil, fmt.Errorf("schedule_k8s_job: list active jobs: %w", err) + } + limit := r.MaxConcurrentJobs + if limit <= 0 { + limit = defaultMaxConcurrent + } + if active >= limit { + // Soft fail — orchestrator should retry. Return a structured payload + // rather than an error so the relay surfaces it as a normal response. + return map[string]any{ + "success": false, + "error": "concurrent_job_limit", + "limit": limit, + "active": active, + }, nil + } + + jobName, err := makeJobName(spec.NamePrefix) + if err != nil { + return nil, fmt.Errorf("schedule_k8s_job: %w", err) + } + jobUUID := uuid.NewString() + job := r.BuildJob(spec, jobName, jobUUID) + + created, err := r.Client.BatchV1().Jobs(r.Namespace).Create(ctx, job, metav1.CreateOptions{}) + if err != nil { + return nil, fmt.Errorf("schedule_k8s_job: create: %w", err) + } + + slog.Info("schedule_k8s_job: created", + "job_name", created.Name, + "job_uuid", jobUUID, + "namespace", r.Namespace, + "image", spec.Image, + "args", spec.Args, + "privileged", spec.Privileged, + "host_pid", spec.HostPID, + "host_network", spec.HostNetwork, + "service_account", created.Spec.Template.Spec.ServiceAccountName, + ) + + return map[string]any{ + "success": true, + "job_name": created.Name, + "job_uuid": jobUUID, + }, nil +} + +// wait_for_k8s_job +// ---------------- +// Inbound params: { "job_name": "" } +// +// Outbound: { "status": "Running"|"Complete"|"Failed", "failure_reason": "..." } +// +// Single non-blocking call — the api-server orchestrator polls. +func (r *Runner) handleWaitForJob(ctx context.Context, params map[string]any) (any, error) { + jobName, _ := params["job_name"].(string) + if jobName == "" { + return nil, errors.New("wait_for_k8s_job: job_name is required") + } + job, err := r.Client.BatchV1().Jobs(r.Namespace).Get(ctx, jobName, metav1.GetOptions{}) + if err != nil { + if apierrors.IsNotFound(err) { + return map[string]any{ + "status": "NotFound", + "failure_reason": "job no longer exists (TTL expired or never created)", + }, nil + } + return nil, fmt.Errorf("wait_for_k8s_job: get: %w", err) + } + status, reason := jobStatusSnapshot(job) + out := map[string]any{ + "status": status, + "failure_reason": reason, + "active": job.Status.Active, + "succeeded": job.Status.Succeeded, + "failed": job.Status.Failed, + } + if job.Status.StartTime != nil { + out["start_time"] = job.Status.StartTime.UTC().Format("2006-01-02T15:04:05Z") + } + if job.Status.CompletionTime != nil { + out["completion_time"] = job.Status.CompletionTime.UTC().Format("2006-01-02T15:04:05Z") + } + return out, nil +} + +// get_k8s_job_logs +// ---------------- +// Inbound params: { "job_name": "" } +// +// Outbound: +// +// { +// "stdout_b64_gzip": "", +// "stdout_size": , +// "truncated": bool, +// "stdout_bytes_dropped": int, +// } +// +// Compression matters because trivy_cis produces ~17 MiB of structured JSON +// and kube_bench can be similar. Gzipping before the relay→api-server hop +// drops the wire payload ~8-10x for that shape, fitting cleanly inside the +// agent dispatch's 180s ceiling. The api-server's relay wrapper inflates +// transparently so callers see a plain string. +func (r *Runner) handleGetJobLogs(ctx context.Context, params map[string]any) (any, error) { + jobName, _ := params["job_name"].(string) + if jobName == "" { + return nil, errors.New("get_k8s_job_logs: job_name is required") + } + stdout, truncated, dropped, err := r.fetchPodLogs(ctx, jobName) + if err != nil { + return nil, fmt.Errorf("get_k8s_job_logs: %w", err) + } + + var buf bytes.Buffer + gz := gzip.NewWriter(&buf) + if _, err := gz.Write([]byte(stdout)); err != nil { + return nil, fmt.Errorf("get_k8s_job_logs: gzip: %w", err) + } + if err := gz.Close(); err != nil { + return nil, fmt.Errorf("get_k8s_job_logs: gzip close: %w", err) + } + encoded := base64.StdEncoding.EncodeToString(buf.Bytes()) + + return map[string]any{ + "stdout_b64_gzip": encoded, + "stdout_size": len(stdout), + "truncated": truncated, + "stdout_bytes_dropped": dropped, + }, nil +} + +// decodeJobSpec re-marshals the params["spec"] map through encoding/json so +// JobSpec's struct tags drive the decode (handles nested corev1.Volume / +// VolumeMount cleanly without bespoke parsing). +func decodeJobSpec(params map[string]any) (JobSpec, error) { + raw, ok := params["spec"] + if !ok || raw == nil { + return JobSpec{}, errors.New("schedule_k8s_job: spec is required") + } + encoded, err := json.Marshal(raw) + if err != nil { + return JobSpec{}, fmt.Errorf("re-encode spec: %w", err) + } + var spec JobSpec + if err := json.Unmarshal(encoded, &spec); err != nil { + return JobSpec{}, fmt.Errorf("decode spec: %w", err) + } + return spec, nil +} diff --git a/runner/pkg/scanners/scanners.go b/runner/pkg/scanners/scanners.go new file mode 100644 index 0000000..1578290 --- /dev/null +++ b/runner/pkg/scanners/scanners.go @@ -0,0 +1,295 @@ +// Package scanners exposes generic Kubernetes Job primitives the api-server +// uses to orchestrate scanners (Trivy, Popeye, KRR, kube-bench, cert-scanner, +// Nova helm-upgrade, k8s-version-upgrade) and any future Job-shaped action. +// +// The agent intentionally has NO knowledge of scanner semantics. The +// api-server constructs a JobSpec (image, args, security context, volumes) +// and passes it through schedule_k8s_job; the agent enforces hygiene gates +// (namespace clamp, TTL clamp, BackoffLimit clamp, concurrency cap, log size +// cap) but never policy. Adding a new scanner tomorrow is a pure api-server +// change — no agent code, no customer Helm upgrade. +// +// Action surface (registered in handlers.go): +// - schedule_k8s_job : create a Job from a server-supplied JobSpec +// - wait_for_k8s_job : poll Job status (single call; orchestrator loops) +// - get_k8s_job_logs : fetch (capped) stdout from the Job's pod +package scanners + +import ( + "context" + "crypto/rand" + "encoding/hex" + "errors" + "fmt" + "io" + "strings" + + batchv1 "k8s.io/api/batch/v1" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + "k8s.io/utils/ptr" +) + +// Hygiene constants — agent-enforced, server cannot override. +const ( + jobTTLSeconds int32 = 600 // 10 min after-finish cleanup + jobBackoffLimit int32 = 0 // fail-fast; orchestrator decides retries + defaultMaxConcurrent int = 5 + // 64 MiB raw stdout cap — large enough to absorb trivy_cis (~17 MiB) and + // kube_bench full reports without truncation. Agent gzips before sending, + // so the wire payload is typically ~5-10x smaller than the raw cap. + defaultLogCapBytes int = 64 << 20 // 64 MiB + jobNameRandomBytes int = 4 // → 8 hex chars + managedByLabel = "app.kubernetes.io/managed-by" + managedByValue = "nudgebee-agent" + orchestratorLabel = "nudgebee.com/orchestrator" + orchestratorValue = "api-server" + jobUUIDLabel = "nudgebee.com/job-uuid" + jobNameSelectorLabel = "job-name" +) + +// Runner schedules and watches Jobs. Stateless apart from the K8s client and +// per-Runner namespace + default ServiceAccount; the per-Job hygiene gates +// live in primitives.go and reach Runner via BuildJob. +type Runner struct { + Client kubernetes.Interface + Namespace string // hard-clamped — server cannot override + DefaultSA string // applied when JobSpec.ServiceAccount == "" + MaxConcurrentJobs int // 0 → defaultMaxConcurrent + LogCapBytes int // 0 → defaultLogCapBytes +} + +// NewRunner returns a Runner with the canonical defaults. +// +// namespace defaults to "nudgebee-agent" when empty; the api-server's choice +// of namespace is ignored — the agent enforces the namespace it was deployed +// with so a misbehaving caller can't pile Jobs into kube-system. +func NewRunner(cs kubernetes.Interface, namespace, serviceAccount string) *Runner { + if namespace == "" { + namespace = "nudgebee-agent" + } + return &Runner{ + Client: cs, + Namespace: namespace, + DefaultSA: serviceAccount, + MaxConcurrentJobs: defaultMaxConcurrent, + LogCapBytes: defaultLogCapBytes, + } +} + +// BuildJob materializes a *batchv1.Job from a server-supplied JobSpec. +// +// Hygiene the agent enforces (server cannot override): +// - Job runs in r.Namespace. +// - TTLSecondsAfterFinished = 600 (10 min cleanup). +// - BackoffLimit = 0 (fail-fast). +// - app.kubernetes.io/managed-by + nudgebee.com/orchestrator labels are stamped. +// - A per-Job UUID label is added for audit. +// +// Caller is expected to validate JobSpec first; BuildJob will not reject a +// missing NamePrefix or Image — that's the primitive's job before BuildJob +// is called. +func (r *Runner) BuildJob(spec JobSpec, jobName, jobUUID string) *batchv1.Job { + envs := make([]corev1.EnvVar, 0, len(spec.Env)) + for k, v := range spec.Env { + envs = append(envs, corev1.EnvVar{Name: k, Value: v}) + } + container := corev1.Container{ + Name: "scanner", + Image: spec.Image, + Command: spec.Command, + Args: spec.Args, + Env: envs, + VolumeMounts: spec.VolumeMounts, + } + if spec.Privileged { + container.SecurityContext = &corev1.SecurityContext{Privileged: ptr.To(true)} + } + + saName := spec.ServiceAccount + if saName == "" { + saName = r.DefaultSA + } + + podSpec := corev1.PodSpec{ + RestartPolicy: corev1.RestartPolicyNever, + Containers: []corev1.Container{container}, + HostPID: spec.HostPID, + HostNetwork: spec.HostNetwork, + ServiceAccountName: saName, + Volumes: spec.Volumes, + } + + ttl := jobTTLSeconds + backoff := jobBackoffLimit + labels := map[string]string{ + managedByLabel: managedByValue, + orchestratorLabel: orchestratorValue, + jobUUIDLabel: jobUUID, + } + return &batchv1.Job{ + ObjectMeta: metav1.ObjectMeta{ + Name: jobName, + Namespace: r.Namespace, + Labels: labels, + }, + Spec: batchv1.JobSpec{ + BackoffLimit: &backoff, + TTLSecondsAfterFinished: &ttl, + Template: corev1.PodTemplateSpec{ + ObjectMeta: metav1.ObjectMeta{ + Labels: map[string]string{jobNameSelectorLabel: jobName}, + }, + Spec: podSpec, + }, + }, + } +} + +// makeJobName returns "-<8-hex>". Prefix is sanitized so an attacker +// or a buggy api-server can't smuggle a non-DNS-1123 name into the apiserver. +func makeJobName(prefix string) (string, error) { + clean := sanitizeDNSPrefix(prefix) + if clean == "" { + return "", errors.New("name_prefix is required and must contain at least one DNS-1123 character") + } + var buf [4]byte + if _, err := rand.Read(buf[:]); err != nil { + return "", fmt.Errorf("rand: %w", err) + } + suffix := hex.EncodeToString(buf[:]) + // Job name max is 63 chars (DNS-1123). Reserve 9 for "-<8hex>". + const max = 63 - 1 - 8 + if len(clean) > max { + clean = clean[:max] + } + return clean + "-" + suffix, nil +} + +func sanitizeDNSPrefix(s string) string { + var b strings.Builder + b.Grow(len(s)) + prevDash := false + for _, r := range strings.ToLower(s) { + switch { + case r >= 'a' && r <= 'z', r >= '0' && r <= '9': + b.WriteRune(r) + prevDash = false + default: + if !prevDash { + b.WriteRune('-') + prevDash = true + } + } + } + return strings.Trim(b.String(), "-") +} + +// listManagedJobs counts Jobs the agent itself created that haven't reached +// a terminal state. Used by primitives.go for the concurrency cap. +func (r *Runner) listManagedJobs(ctx context.Context) (int, error) { + jobs, err := r.Client.BatchV1().Jobs(r.Namespace).List(ctx, metav1.ListOptions{ + LabelSelector: managedByLabel + "=" + managedByValue + "," + orchestratorLabel + "=" + orchestratorValue, + }) + if err != nil { + return 0, err + } + active := 0 + for i := range jobs.Items { + if !jobIsTerminal(&jobs.Items[i]) { + active++ + } + } + return active, nil +} + +func jobIsTerminal(j *batchv1.Job) bool { + for _, c := range j.Status.Conditions { + if c.Status != corev1.ConditionTrue { + continue + } + if c.Type == batchv1.JobComplete || c.Type == batchv1.JobFailed { + return true + } + } + return false +} + +// jobStatusSnapshot returns ("Running" | "Complete" | "Failed", reason). +// Empty string for status when the Job hasn't reached a condition yet. +func jobStatusSnapshot(j *batchv1.Job) (string, string) { + for _, c := range j.Status.Conditions { + if c.Status != corev1.ConditionTrue { + continue + } + if c.Type == batchv1.JobComplete { + return "Complete", c.Message + } + if c.Type == batchv1.JobFailed { + return "Failed", c.Message + } + } + return "Running", "" +} + +// fetchPodLogs reads at most LogCapBytes from the (single) pod the Job +// spawned. Returns (stdout, truncated, droppedBytes, error). +func (r *Runner) fetchPodLogs(ctx context.Context, jobName string) (string, bool, int, error) { + pods, err := r.Client.CoreV1().Pods(r.Namespace).List(ctx, metav1.ListOptions{ + LabelSelector: jobNameSelectorLabel + "=" + jobName, + }) + if err != nil { + return "", false, 0, err + } + if len(pods.Items) == 0 { + return "", false, 0, errors.New("no pods found for job") + } + cap := r.LogCapBytes + if cap <= 0 { + cap = defaultLogCapBytes + } + req := r.Client.CoreV1().Pods(r.Namespace).GetLogs(pods.Items[0].Name, &corev1.PodLogOptions{}) + stream, err := req.Stream(ctx) + if err != nil { + return "", false, 0, err + } + defer func() { _ = stream.Close() }() + + var out strings.Builder + out.Grow(min(cap, 32<<10)) + buf := make([]byte, 32<<10) + written := 0 + dropped := 0 + for { + n, err := stream.Read(buf) + if n > 0 { + room := cap - written + switch { + case room <= 0: + dropped += n + case n <= room: + out.Write(buf[:n]) + written += n + default: + out.Write(buf[:room]) + dropped += n - room + written = cap + } + } + if err != nil { + if err == io.EOF { + break + } + break + } + } + return out.String(), dropped > 0, dropped, nil +} + +func min(a, b int) int { + if a < b { + return a + } + return b +} diff --git a/runner/pkg/scanners/scanners_envtest_integration_test.go b/runner/pkg/scanners/scanners_envtest_integration_test.go new file mode 100644 index 0000000..0dc163c --- /dev/null +++ b/runner/pkg/scanners/scanners_envtest_integration_test.go @@ -0,0 +1,186 @@ +//go:build integration + +package scanners + +import ( + "context" + "strings" + "testing" + "time" + + batchv1 "k8s.io/api/batch/v1" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" + "sigs.k8s.io/controller-runtime/pkg/envtest" +) + +// envtest has no scheduler/kubelet, so Jobs we submit won't actually progress +// to Complete on their own. We test the realistic pieces: +// +// 1. The Job spec the agent generates from a server-supplied JobSpec is +// accepted by a real kube-apiserver (catches OpenAPI / admission +// validation issues that fake clients miss). +// 2. wait_for_k8s_job observes a Complete status when we mark it. +// 3. The concurrency cap rejects the (N+1)th schedule. +// +// Real Job execution + log fetching needs kind or a live cluster — those +// belong in an e2e test suite separate from this build tag. +func TestPrimitives_RealAPIServer(t *testing.T) { + if testing.Short() { + t.Skip("integration test; -short") + } + + env := &envtest.Environment{} + cfg, err := env.Start() + if err != nil { + t.Fatalf("envtest.Start: %v", err) + } + t.Cleanup(func() { _ = env.Stop() }) + + cs, err := kubernetes.NewForConfig(cfg) + if err != nil { + t.Fatal(err) + } + + // envtest doesn't include kube-system / nudgebee-agent — use default. + r := NewRunner(cs, "default", "") + ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) + t.Cleanup(cancel) + + t.Run("ScheduleJob_ImageSpecAccepted", func(t *testing.T) { + out, err := r.handleScheduleJob(ctx, map[string]any{ + "spec": map[string]any{ + "name_prefix": "trivy-image", + "image": "aquasec/trivy:0.58.0", + "args": []any{"image", "--format", "json", "nginx:1.27"}, + }, + }) + if err != nil { + t.Fatalf("schedule_k8s_job rejected by apiserver: %v", err) + } + resp := out.(map[string]any) + if resp["success"] != true { + t.Fatalf("schedule failed: %+v", resp) + } + jobName := resp["job_name"].(string) + t.Cleanup(func() { + _ = cs.BatchV1().Jobs("default").Delete(context.Background(), jobName, metav1.DeleteOptions{}) + }) + + // Verify the cmd args round-tripped (api-server's substitution must + // happen server-side; agent forwards bytes verbatim). + created, err := cs.BatchV1().Jobs("default").Get(ctx, jobName, metav1.GetOptions{}) + if err != nil { + t.Fatal(err) + } + if !strings.Contains(strings.Join(created.Spec.Template.Spec.Containers[0].Args, " "), "nginx:1.27") { + t.Errorf("args not preserved: %v", created.Spec.Template.Spec.Containers[0].Args) + } + }) + + t.Run("ScheduleJob_PrivilegedSpecAccepted", func(t *testing.T) { + out, err := r.handleScheduleJob(ctx, map[string]any{ + "spec": map[string]any{ + "name_prefix": "kube-bench", + "image": "aquasec/kube-bench:v0.10.4", + "args": []any{"--json"}, + "privileged": true, + "host_pid": true, + "host_network": true, + }, + }) + if err != nil { + t.Fatalf("schedule_k8s_job rejected: %v", err) + } + jobName := out.(map[string]any)["job_name"].(string) + t.Cleanup(func() { + _ = cs.BatchV1().Jobs("default").Delete(context.Background(), jobName, metav1.DeleteOptions{}) + }) + + created, err := cs.BatchV1().Jobs("default").Get(ctx, jobName, metav1.GetOptions{}) + if err != nil { + t.Fatal(err) + } + if !created.Spec.Template.Spec.HostPID { + t.Error("HostPID lost in apiserver round-trip") + } + c := created.Spec.Template.Spec.Containers[0] + if c.SecurityContext == nil || c.SecurityContext.Privileged == nil || !*c.SecurityContext.Privileged { + t.Error("privileged flag lost in apiserver round-trip") + } + }) + + t.Run("WaitForJob_ObservesComplete", func(t *testing.T) { + out, err := r.handleScheduleJob(ctx, map[string]any{ + "spec": map[string]any{"name_prefix": "wait-test", "image": "x:1"}, + }) + if err != nil { + t.Fatal(err) + } + jobName := out.(map[string]any)["job_name"].(string) + t.Cleanup(func() { + _ = cs.BatchV1().Jobs("default").Delete(context.Background(), jobName, metav1.DeleteOptions{}) + }) + + // K8s 1.32 requires both SuccessCriteriaMet and Complete + start/end. + j, err := cs.BatchV1().Jobs("default").Get(ctx, jobName, metav1.GetOptions{}) + if err != nil { + t.Fatal(err) + } + now := metav1.Now() + j.Status.StartTime = &now + j.Status.CompletionTime = &now + j.Status.Conditions = []batchv1.JobCondition{ + {Type: batchv1.JobSuccessCriteriaMet, Status: corev1.ConditionTrue, LastProbeTime: now, LastTransitionTime: now}, + {Type: batchv1.JobComplete, Status: corev1.ConditionTrue, LastProbeTime: now, LastTransitionTime: now, Reason: "Test"}, + } + if _, err := cs.BatchV1().Jobs("default").UpdateStatus(ctx, j, metav1.UpdateOptions{}); err != nil { + t.Fatal(err) + } + + waitOut, err := r.handleWaitForJob(ctx, map[string]any{"job_name": jobName}) + if err != nil { + t.Fatal(err) + } + if waitOut.(map[string]any)["status"] != "Complete" { + t.Fatalf("status = %v", waitOut.(map[string]any)["status"]) + } + }) + + t.Run("WaitForJob_DetectsFailure", func(t *testing.T) { + out, err := r.handleScheduleJob(ctx, map[string]any{ + "spec": map[string]any{"name_prefix": "fail-test", "image": "x:1"}, + }) + if err != nil { + t.Fatal(err) + } + jobName := out.(map[string]any)["job_name"].(string) + t.Cleanup(func() { + _ = cs.BatchV1().Jobs("default").Delete(context.Background(), jobName, metav1.DeleteOptions{}) + }) + + j, _ := cs.BatchV1().Jobs("default").Get(ctx, jobName, metav1.GetOptions{}) + now := metav1.Now() + j.Status.StartTime = &now + j.Status.Conditions = []batchv1.JobCondition{ + {Type: batchv1.JobFailureTarget, Status: corev1.ConditionTrue, LastProbeTime: now, LastTransitionTime: now, Reason: "TestFailure"}, + {Type: batchv1.JobFailed, Status: corev1.ConditionTrue, LastProbeTime: now, LastTransitionTime: now, Reason: "TestFailure", Message: "simulated failure"}, + } + if _, err := cs.BatchV1().Jobs("default").UpdateStatus(ctx, j, metav1.UpdateOptions{}); err != nil { + t.Fatal(err) + } + + waitOut, err := r.handleWaitForJob(ctx, map[string]any{"job_name": jobName}) + if err != nil { + t.Fatal(err) + } + resp := waitOut.(map[string]any) + if resp["status"] != "Failed" { + t.Errorf("status = %v", resp["status"]) + } + if !strings.Contains(resp["failure_reason"].(string), "simulated failure") { + t.Errorf("failure_reason = %v", resp["failure_reason"]) + } + }) +} diff --git a/runner/pkg/scanners/scanners_test.go b/runner/pkg/scanners/scanners_test.go new file mode 100644 index 0000000..4088988 --- /dev/null +++ b/runner/pkg/scanners/scanners_test.go @@ -0,0 +1,564 @@ +package scanners + +import ( + "bytes" + "compress/gzip" + "context" + "encoding/base64" + "io" + "strings" + "testing" + "time" + + batchv1 "k8s.io/api/batch/v1" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes/fake" +) + +// ---------- Runner construction & BuildJob hygiene ---------- + +func TestNewRunner_Defaults(t *testing.T) { + r := NewRunner(fake.NewClientset(), "", "") + if r.Namespace != "nudgebee-agent" { + t.Errorf("Namespace = %q; want nudgebee-agent default", r.Namespace) + } + if r.MaxConcurrentJobs != defaultMaxConcurrent { + t.Errorf("MaxConcurrentJobs = %d; want default %d", r.MaxConcurrentJobs, defaultMaxConcurrent) + } + if r.LogCapBytes != defaultLogCapBytes { + t.Errorf("LogCapBytes = %d; want default %d", r.LogCapBytes, defaultLogCapBytes) + } +} + +func TestBuildJob_HygieneInvariants(t *testing.T) { + // Every Job the agent creates MUST have: + // - TTLSecondsAfterFinished = 600 + // - BackoffLimit = 0 + // - managed-by + orchestrator labels + // - per-Job UUID label + // regardless of what the JobSpec asked for. + r := NewRunner(fake.NewClientset(), "ns", "agent-sa") + job := r.BuildJob(JobSpec{ + NamePrefix: "popeye-scan", + Image: "derailed/popeye:v0.21.5", + Args: []string{"-A", "-o", "json"}, + }, "popeye-scan-abcd1234", "uuid-1") + + if got := *job.Spec.TTLSecondsAfterFinished; got != jobTTLSeconds { + t.Errorf("TTL = %d; want hard-clamped %d", got, jobTTLSeconds) + } + if got := *job.Spec.BackoffLimit; got != jobBackoffLimit { + t.Errorf("BackoffLimit = %d; want hard-clamped %d", got, jobBackoffLimit) + } + if job.Labels[managedByLabel] != managedByValue { + t.Errorf("missing managed-by label: %v", job.Labels) + } + if job.Labels[orchestratorLabel] != orchestratorValue { + t.Errorf("missing orchestrator label: %v", job.Labels) + } + if job.Labels[jobUUIDLabel] != "uuid-1" { + t.Errorf("missing job-uuid label: %v", job.Labels) + } + if job.Namespace != "ns" { + t.Errorf("namespace = %q; agent must clamp", job.Namespace) + } + if job.Spec.Template.Spec.RestartPolicy != corev1.RestartPolicyNever { + t.Errorf("RestartPolicy = %v; want Never", job.Spec.Template.Spec.RestartPolicy) + } +} + +func TestBuildJob_HonorsServerSecurityContext(t *testing.T) { + // kube-bench needs Privileged+HostPID+HostNetwork. The agent honors + // these as opaque server-supplied flags — no scanner-name lookup. + r := NewRunner(fake.NewClientset(), "ns", "") + job := r.BuildJob(JobSpec{ + NamePrefix: "kube-bench", + Image: "aquasec/kube-bench:v0.10.4", + Args: []string{"--json"}, + Privileged: true, + HostPID: true, + HostNetwork: true, + }, "kube-bench-1", "uuid-2") + + ps := job.Spec.Template.Spec + if !ps.HostPID { + t.Error("HostPID lost in BuildJob") + } + if !ps.HostNetwork { + t.Error("HostNetwork lost in BuildJob") + } + c := ps.Containers[0] + if c.SecurityContext == nil || c.SecurityContext.Privileged == nil || !*c.SecurityContext.Privileged { + t.Error("Privileged lost in BuildJob") + } +} + +func TestBuildJob_ServiceAccountFallback(t *testing.T) { + r := NewRunner(fake.NewClientset(), "ns", "default-sa") + + // Empty ServiceAccount → falls back to runner default. + job := r.BuildJob(JobSpec{NamePrefix: "x", Image: "x:1"}, "x-1", "u") + if got := job.Spec.Template.Spec.ServiceAccountName; got != "default-sa" { + t.Errorf("SA fallback = %q; want default-sa", got) + } + + // Server-supplied ServiceAccount wins. + job = r.BuildJob(JobSpec{NamePrefix: "x", Image: "x:1", ServiceAccount: "explicit-sa"}, "x-2", "u") + if got := job.Spec.Template.Spec.ServiceAccountName; got != "explicit-sa" { + t.Errorf("explicit SA = %q; want explicit-sa", got) + } +} + +func TestBuildJob_VolumesAndMounts(t *testing.T) { + // kube-bench needs hostPath volumes — verify they round-trip through BuildJob. + r := NewRunner(fake.NewClientset(), "ns", "") + hp := corev1.HostPathVolumeSource{Path: "/etc"} + job := r.BuildJob(JobSpec{ + NamePrefix: "kb", + Image: "aquasec/kube-bench:v0.10.4", + Volumes: []corev1.Volume{ + {Name: "etc", VolumeSource: corev1.VolumeSource{HostPath: &hp}}, + }, + VolumeMounts: []corev1.VolumeMount{ + {Name: "etc", MountPath: "/etc"}, + }, + }, "kb-1", "u") + if len(job.Spec.Template.Spec.Volumes) != 1 { + t.Fatalf("volumes lost: %v", job.Spec.Template.Spec.Volumes) + } + c := job.Spec.Template.Spec.Containers[0] + if len(c.VolumeMounts) != 1 || c.VolumeMounts[0].MountPath != "/etc" { + t.Errorf("volume mounts lost: %v", c.VolumeMounts) + } +} + +func TestMakeJobName_SanitizesAndShortens(t *testing.T) { + // "Bad" prefix must be lowercased and stripped. + name, err := makeJobName("My_Bad/Prefix!") + if err != nil { + t.Fatal(err) + } + if !strings.HasPrefix(name, "my-bad-prefix-") { + t.Errorf("name = %q; want sanitized prefix", name) + } + if len(name) > 63 { + t.Errorf("name = %q (len %d); DNS-1123 cap is 63", name, len(name)) + } + // Long prefix is truncated, not rejected. + long := strings.Repeat("a", 200) + name, err = makeJobName(long) + if err != nil { + t.Fatal(err) + } + if len(name) > 63 { + t.Errorf("long name not truncated: %d chars", len(name)) + } +} + +func TestMakeJobName_RejectsEmpty(t *testing.T) { + if _, err := makeJobName(""); err == nil { + t.Error("empty prefix must be rejected") + } + if _, err := makeJobName("!!!"); err == nil { + t.Error("prefix with no DNS-1123 chars must be rejected") + } +} + +// ---------- schedule_k8s_job ---------- + +func TestScheduleJob_HappyPath(t *testing.T) { + cs := fake.NewClientset() + r := NewRunner(cs, "default", "agent-sa") + out, err := r.handleScheduleJob(context.Background(), map[string]any{ + "spec": map[string]any{ + "name_prefix": "popeye-scan", + "image": "derailed/popeye:v0.21.5", + "args": []any{"-A", "-o", "json"}, + }, + }) + if err != nil { + t.Fatalf("handleScheduleJob: %v", err) + } + resp := out.(map[string]any) + if resp["success"] != true { + t.Fatalf("success = %v", resp["success"]) + } + jobName := resp["job_name"].(string) + if !strings.HasPrefix(jobName, "popeye-scan-") { + t.Errorf("job_name = %q; want popeye-scan-* prefix", jobName) + } + if resp["job_uuid"] == nil || resp["job_uuid"] == "" { + t.Error("job_uuid missing") + } + jobs, _ := cs.BatchV1().Jobs("default").List(context.Background(), metav1.ListOptions{}) + if len(jobs.Items) != 1 { + t.Fatalf("Job not actually created: %d", len(jobs.Items)) + } +} + +func TestScheduleJob_RejectsMissingFields(t *testing.T) { + r := NewRunner(fake.NewClientset(), "ns", "") + cases := map[string]map[string]any{ + "missing spec": {}, + "missing name_prefix": {"spec": map[string]any{ + "image": "x:1", + }}, + "missing image": {"spec": map[string]any{ + "name_prefix": "x", + }}, + } + for name, params := range cases { + t.Run(name, func(t *testing.T) { + if _, err := r.handleScheduleJob(context.Background(), params); err == nil { + t.Error("expected error") + } + }) + } +} + +func TestScheduleJob_ConcurrencyCap(t *testing.T) { + cs := fake.NewClientset() + r := NewRunner(cs, "default", "") + r.MaxConcurrentJobs = 2 + + // Pre-populate two non-terminal Jobs with the agent's labels. + for i := 0; i < 2; i++ { + _, _ = cs.BatchV1().Jobs("default").Create(context.Background(), &batchv1.Job{ + ObjectMeta: metav1.ObjectMeta{ + Name: "existing-" + string(rune('a'+i)), Namespace: "default", + Labels: map[string]string{ + managedByLabel: managedByValue, + orchestratorLabel: orchestratorValue, + }, + }, + }, metav1.CreateOptions{}) + } + + out, err := r.handleScheduleJob(context.Background(), map[string]any{ + "spec": map[string]any{"name_prefix": "p", "image": "x:1"}, + }) + if err != nil { + t.Fatalf("handleScheduleJob: %v", err) + } + resp := out.(map[string]any) + if resp["success"] != false { + t.Errorf("success = %v; want false (capped)", resp["success"]) + } + if resp["error"] != "concurrent_job_limit" { + t.Errorf("error = %v; want concurrent_job_limit", resp["error"]) + } + if resp["limit"] != 2 { + t.Errorf("limit = %v; want 2", resp["limit"]) + } +} + +// ---------- wait_for_k8s_job ---------- + +func TestWaitForJob_Running(t *testing.T) { + cs := fake.NewClientset() + _, _ = cs.BatchV1().Jobs("default").Create(context.Background(), &batchv1.Job{ + ObjectMeta: metav1.ObjectMeta{Name: "j-1", Namespace: "default"}, + }, metav1.CreateOptions{}) + r := NewRunner(cs, "default", "") + out, err := r.handleWaitForJob(context.Background(), map[string]any{"job_name": "j-1"}) + if err != nil { + t.Fatal(err) + } + if out.(map[string]any)["status"] != "Running" { + t.Errorf("status = %v; want Running", out.(map[string]any)["status"]) + } +} + +func TestWaitForJob_Complete(t *testing.T) { + cs := fake.NewClientset() + now := metav1.Now() + _, _ = cs.BatchV1().Jobs("default").Create(context.Background(), &batchv1.Job{ + ObjectMeta: metav1.ObjectMeta{Name: "j-2", Namespace: "default"}, + Status: batchv1.JobStatus{ + Conditions: []batchv1.JobCondition{{ + Type: batchv1.JobComplete, Status: corev1.ConditionTrue, + LastProbeTime: now, LastTransitionTime: now, + }}, + CompletionTime: &now, + StartTime: &now, + Succeeded: 1, + }, + }, metav1.CreateOptions{}) + r := NewRunner(cs, "default", "") + out, err := r.handleWaitForJob(context.Background(), map[string]any{"job_name": "j-2"}) + if err != nil { + t.Fatal(err) + } + resp := out.(map[string]any) + if resp["status"] != "Complete" { + t.Errorf("status = %v", resp["status"]) + } + if resp["completion_time"] == nil { + t.Error("completion_time missing") + } +} + +func TestWaitForJob_Failed(t *testing.T) { + cs := fake.NewClientset() + now := metav1.Now() + _, _ = cs.BatchV1().Jobs("default").Create(context.Background(), &batchv1.Job{ + ObjectMeta: metav1.ObjectMeta{Name: "j-3", Namespace: "default"}, + Status: batchv1.JobStatus{ + Conditions: []batchv1.JobCondition{{ + Type: batchv1.JobFailed, Status: corev1.ConditionTrue, + LastProbeTime: now, LastTransitionTime: now, + Message: "container exited 1", + }}, + }, + }, metav1.CreateOptions{}) + r := NewRunner(cs, "default", "") + out, err := r.handleWaitForJob(context.Background(), map[string]any{"job_name": "j-3"}) + if err != nil { + t.Fatal(err) + } + resp := out.(map[string]any) + if resp["status"] != "Failed" { + t.Errorf("status = %v", resp["status"]) + } + if !strings.Contains(resp["failure_reason"].(string), "container exited 1") { + t.Errorf("failure_reason = %v", resp["failure_reason"]) + } +} + +func TestWaitForJob_NotFound(t *testing.T) { + cs := fake.NewClientset() + r := NewRunner(cs, "default", "") + out, err := r.handleWaitForJob(context.Background(), map[string]any{"job_name": "nonexistent"}) + if err != nil { + t.Fatal(err) + } + if out.(map[string]any)["status"] != "NotFound" { + t.Errorf("status = %v; want NotFound", out.(map[string]any)["status"]) + } +} + +func TestWaitForJob_RejectsMissingName(t *testing.T) { + r := NewRunner(fake.NewClientset(), "ns", "") + if _, err := r.handleWaitForJob(context.Background(), map[string]any{}); err == nil { + t.Error("expected error for missing job_name") + } +} + +// ---------- get_k8s_job_logs ---------- + +func TestGetJobLogs_HappyPath(t *testing.T) { + cs := fake.NewClientset() + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: "p-1", Namespace: "default", + Labels: map[string]string{jobNameSelectorLabel: "j-1"}, + }, + } + _, _ = cs.CoreV1().Pods("default").Create(context.Background(), pod, metav1.CreateOptions{}) + r := NewRunner(cs, "default", "") + out, err := r.handleGetJobLogs(context.Background(), map[string]any{"job_name": "j-1"}) + if err != nil { + t.Fatal(err) + } + resp := out.(map[string]any) + // fake clientset returns "fake logs" as default stdout — it's gzipped + base64'd. + encoded, ok := resp["stdout_b64_gzip"].(string) + if !ok { + t.Fatalf("stdout_b64_gzip missing or wrong type: %T", resp["stdout_b64_gzip"]) + } + stdout, err := decodeStdoutB64Gzip(encoded) + if err != nil { + t.Fatalf("inflate: %v", err) + } + if stdout != "fake logs" { + t.Errorf("inflated stdout = %q; want %q", stdout, "fake logs") + } + if resp["truncated"] != false { + t.Errorf("truncated = %v; want false (well under cap)", resp["truncated"]) + } + if size, _ := resp["stdout_size"].(int); size != len("fake logs") { + t.Errorf("stdout_size = %v; want %d", resp["stdout_size"], len("fake logs")) + } +} + +// decodeStdoutB64Gzip is the inverse of handleGetJobLogs's encode step. Tests +// use it to assert the inflated bytes; api-server's relay wrapper does the +// equivalent transparently. +func decodeStdoutB64Gzip(s string) (string, error) { + raw, err := base64.StdEncoding.DecodeString(s) + if err != nil { + return "", err + } + gr, err := gzip.NewReader(bytes.NewReader(raw)) + if err != nil { + return "", err + } + defer func() { _ = gr.Close() }() + out, err := io.ReadAll(gr) + if err != nil { + return "", err + } + return string(out), nil +} + +// TestGetJobLogs_GzipRoundtrip proves the agent's compress-on-the-way-out +// shape inflates back to the same bytes — and that JSON-shaped logs (the +// kind trivy_cis / popeye produce) compress meaningfully so the bandwidth +// argument for shipping over the relay holds. +func TestGetJobLogs_GzipRoundtrip(t *testing.T) { + // Synthesize a popeye-shaped JSON blob with lots of repetition, the same + // pattern real scanner output has. + var b strings.Builder + b.WriteString(`{"sections":[`) + for i := 0; i < 200; i++ { + if i > 0 { + b.WriteString(",") + } + b.WriteString(`{"linter":"deployments","gvr":"apps/v1/deployments","issues":{"default/my-app":[{"group":"__root__","gvr":"apps/v1/deployments","level":2,"message":"[POP-100] No probes defined"}]}}`) + } + b.WriteString(`]}`) + raw := b.String() + + // Round-trip through gzip+base64 and back. + var buf bytes.Buffer + gz := gzip.NewWriter(&buf) + if _, err := gz.Write([]byte(raw)); err != nil { + t.Fatal(err) + } + if err := gz.Close(); err != nil { + t.Fatal(err) + } + encoded := base64.StdEncoding.EncodeToString(buf.Bytes()) + + // Bandwidth assertion — repetitive JSON should compress at least 5x. + if len(encoded) > len(raw)/5 { + t.Errorf("compression too weak: raw=%d, base64(gzip)=%d (ratio %.1fx); expected ≥5x", + len(raw), len(encoded), float64(len(raw))/float64(len(encoded))) + } + + stdout, err := decodeStdoutB64Gzip(encoded) + if err != nil { + t.Fatal(err) + } + if stdout != raw { + t.Errorf("inflated bytes did not match raw input") + } +} + +func TestGetJobLogs_NoPod(t *testing.T) { + cs := fake.NewClientset() + r := NewRunner(cs, "default", "") + if _, err := r.handleGetJobLogs(context.Background(), map[string]any{"job_name": "j-x"}); err == nil { + t.Error("expected error when no pods match the job") + } +} + +func TestGetJobLogs_RejectsMissingName(t *testing.T) { + r := NewRunner(fake.NewClientset(), "ns", "") + if _, err := r.handleGetJobLogs(context.Background(), map[string]any{}); err == nil { + t.Error("expected error for missing job_name") + } +} + +// ---------- Handlers wiring ---------- + +func TestHandlers_RegistersOnlyPrimitives(t *testing.T) { + r := NewRunner(fake.NewClientset(), "ns", "") + hs := Handlers(r) + want := []string{"schedule_k8s_job", "wait_for_k8s_job", "get_k8s_job_logs"} + if len(hs) != len(want) { + t.Fatalf("Handlers count = %d; want %d (primitives only)", len(hs), len(want)) + } + for _, name := range want { + if _, ok := hs[name]; !ok { + t.Errorf("missing primitive %q", name) + } + } + // Sanity: scanner-named actions must NOT be registered. + for _, gone := range []string{ + "image_scanner", "popeye_scan", "trivy_cis_scan", "kube_bench_scan", + "certificate_scanner", "krr_scan", "helm_chart_upgrade", + } { + if _, ok := hs[gone]; ok { + t.Errorf("named scanner %q is still registered — agent must own no scanner knowledge", gone) + } + } +} + +// ---------- end-to-end through the dispatch.Handler signature ---------- + +// Schedule + Wait + GetLogs in sequence against a fake clientset, simulating +// kubelet finishing the Job. Mirrors the api-server orchestrator's flow. +func TestPrimitives_FullCycle(t *testing.T) { + cs := fake.NewClientset() + r := NewRunner(cs, "default", "agent-sa") + hs := Handlers(r) + + // 1. schedule + scheduleOut, err := hs["schedule_k8s_job"](context.Background(), map[string]any{ + "spec": map[string]any{ + "name_prefix": "trivy", + "image": "aquasec/trivy:0.58.0", + "args": []any{"image", "--format", "json", "nginx:1.27"}, + }, + }) + if err != nil { + t.Fatalf("schedule: %v", err) + } + resp := scheduleOut.(map[string]any) + if resp["success"] != true { + t.Fatalf("schedule failed: %+v", resp) + } + jobName := resp["job_name"].(string) + + // 2. simulate kubelet: mark Complete + spawn pod with the matching label + now := metav1.Now() + j, _ := cs.BatchV1().Jobs("default").Get(context.Background(), jobName, metav1.GetOptions{}) + j.Status.Conditions = []batchv1.JobCondition{{ + Type: batchv1.JobComplete, Status: corev1.ConditionTrue, + LastProbeTime: now, LastTransitionTime: now, + }} + j.Status.CompletionTime = &now + _, _ = cs.BatchV1().Jobs("default").UpdateStatus(context.Background(), j, metav1.UpdateOptions{}) + _, _ = cs.CoreV1().Pods("default").Create(context.Background(), &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: jobName + "-pod", Namespace: "default", + Labels: map[string]string{jobNameSelectorLabel: jobName}, + }, + }, metav1.CreateOptions{}) + + // 3. wait + waitOut, err := hs["wait_for_k8s_job"](context.Background(), map[string]any{"job_name": jobName}) + if err != nil { + t.Fatalf("wait: %v", err) + } + if waitOut.(map[string]any)["status"] != "Complete" { + t.Fatalf("status = %v", waitOut.(map[string]any)["status"]) + } + + // 4. fetch logs + logsOut, err := hs["get_k8s_job_logs"](context.Background(), map[string]any{"job_name": jobName}) + if err != nil { + t.Fatalf("logs: %v", err) + } + if _, ok := logsOut.(map[string]any)["stdout_b64_gzip"].(string); !ok { + t.Errorf("stdout_b64_gzip missing in logs response") + } +} + +// Sanity guard against a regression where someone reintroduces named-scanner +// behavior. If new code starts referencing constants like "image_scanner" or +// "popeye_scan" inside this package, these tests catch it. +func TestNoScannerKnowledgeInPackage(t *testing.T) { + r := NewRunner(fake.NewClientset(), "ns", "") + // Runner has no Specs map, no defaultSpecs, no per-scanner config. + // Reflective check would be brittle; instead rely on package-level + // design: BuildJob takes a server-supplied JobSpec. + job := r.BuildJob(JobSpec{NamePrefix: "x", Image: "x:1"}, "x-1", "u") + if !strings.HasPrefix(job.Name, "x-1") { + t.Errorf("BuildJob preserves the caller-supplied name: got %q", job.Name) + } + // Time import — keep useful for future sub-tests. + _ = time.Second +} diff --git a/runner/pkg/servicemap/build.go b/runner/pkg/servicemap/build.go new file mode 100644 index 0000000..d9fede1 --- /dev/null +++ b/runner/pkg/servicemap/build.go @@ -0,0 +1,326 @@ +package servicemap + +// build populates a *world from the parsed Prometheus results. Mirrors the +// loadKubernetesMetadata + loadContainers passes, simplified. +// +// Inputs: +// +// metrics : map[query_name][]promResult — one slice per QUERIES key +// +// Output: +// +// *world ready for renderApplications. +func build(metrics map[string][]promResult) *world { + w := newWorld() + + // Phase 1 — kube_pod_info gives us pod → workload identity, IP → app. + // kube_pod_info labels include: pod, namespace, host_ip, pod_ip, + // created_by_kind, created_by_name (the workload). + for _, r := range metrics["kube_pod_info"] { + l := r.Metric + ownerKind := labelOr(l, "created_by_kind", "") + ownerName := labelOr(l, "created_by_name", "") + if ownerKind == "ReplicaSet" { + // ReplicaSet maps back to its Deployment by name prefix — the + // RS name encodes the Deployment hash. + ownerKind = "Deployment" + ownerName = trimReplicaSetSuffix(ownerName) + } + ns := labelOr(l, "namespace", "") + podName := labelOr(l, "pod", "") + podIP := labelOr(l, "pod_ip", "") + + if ownerName == "" { + // Bare pod (no owner); use the pod name as the application name. + ownerKind = "Pod" + ownerName = podName + } + id := ApplicationID{Name: ownerName, Kind: ownerKind, Namespace: ns} + a := w.upsertApp(id) + if podName != "" { + a.instances[podName] = Instance{ + ID: ApplicationID{Name: podName, Kind: ownerKind, Namespace: ns}, + IsFailed: false, + } + } + if podIP != "" { + w.podIPToApp[podIP] = appKey(id) + } + } + + // Phase 2 — kube_pod_labels (decorates apps with labels). + for _, r := range metrics["kube_pod_labels"] { + l := r.Metric + ownerKind := labelOr(l, "created_by_kind", "") + ownerName := labelOr(l, "created_by_name", "") + if ownerKind == "ReplicaSet" { + ownerKind = "Deployment" + ownerName = trimReplicaSetSuffix(ownerName) + } + ns := labelOr(l, "namespace", "") + if ownerName == "" { + continue + } + a := w.upsertApp(ApplicationID{Name: ownerName, Kind: ownerKind, Namespace: ns}) + for k, v := range l { + if matchesLabelPrefix(k) { + a.labels[stripLabelPrefix(k)] = v + } + } + } + + // Phase 3 — pod readiness → instance failure flag. + for _, r := range metrics["kube_pod_status_ready"] { + l := r.Metric + podName := labelOr(l, "pod", "") + ns := labelOr(l, "namespace", "") + if podName == "" { + continue + } + // Find the app this pod belongs to (any instance match). + for _, app := range w.applications { + if inst, ok := app.instances[podName]; ok && app.id.Namespace == ns { + inst.IsFailed = !r.HasVal || r.Last == 0 + app.instances[podName] = inst + break + } + } + } + + // Phase 4 — Service ClusterIP → backing workload (best effort: services + // label "selector_*" against pods, but kube_service_info doesn't expose + // selectors directly. We map service IP to itself as a fallback so the + // edge still resolves to a node, even if it can't be coalesced into the + // workload.) + for _, r := range metrics["kube_service_info"] { + l := r.Metric + clusterIP := labelOr(l, "cluster_ip", "") + svcName := labelOr(l, "service", "") + ns := labelOr(l, "namespace", "") + if clusterIP == "" || svcName == "" { + continue + } + id := ApplicationID{Name: svcName, Kind: "Service", Namespace: ns} + w.upsertApp(id) + w.serviceIPToApp[clusterIP] = appKey(id) + } + + // Phase 5 — desired replica counts. + applyReplicaCount(w, metrics["kube_deployment_spec_replicas"], "Deployment", "deployment") + applyReplicaCount(w, metrics["kube_statefulset_replicas"], "StatefulSet", "statefulset") + applyReplicaCount(w, metrics["kube_daemonset_status_desired_number_scheduled"], "DaemonSet", "daemonset") + + // Phase 6 — container resource stats summed per app. + addContainerStat(w, metrics["container_oom_kills_total"], func(s *containerSums, v float64) { s.oomKills += v }) + addContainerStat(w, metrics["container_restarts"], func(s *containerSums, v float64) { s.restarts += v }) + addContainerStat(w, metrics["container_throttled_time"], func(s *containerSums, v float64) { s.cpuThrottlingTime += v }) + addContainerStat(w, metrics["container_volume_size"], func(s *containerSums, v float64) { s.volumeSize += v }) + addContainerStat(w, metrics["container_volume_used"], func(s *containerSums, v float64) { s.volumeUsed += v }) + + // Phase 7 — connection edges from container_net_tcp_successful_connects. + // Labels: src_workload_kind, src_workload_name, src_workload_namespace, + // destination_ip (or destination_workload_*). + for _, r := range metrics["container_net_tcp_successful_connects"] { + la := edgeFromConnectionLabels(w, r.Metric) + if la == nil { + continue + } + la.hasRequests = true + la.requests += r.Last + } + for _, r := range metrics["container_http_requests_count"] { + la := edgeFromConnectionLabels(w, r.Metric) + if la == nil { + continue + } + la.requests += r.Last + la.protocol = "HTTP" + } + for _, r := range metrics["container_http_requests_failure_count"] { + la := edgeFromConnectionLabels(w, r.Metric) + if la == nil { + continue + } + la.failures += r.Last + } + for _, r := range metrics["container_http_requests_latency"] { + la := edgeFromConnectionLabels(w, r.Metric) + if la == nil { + continue + } + // Use max observed latency (best-effort "most-recent" projection + // per connection). + if r.Last > la.latency { + la.latency = r.Last + } + } + for _, r := range metrics["container_net_tcp_bytes_sent"] { + la := edgeFromConnectionLabels(w, r.Metric) + if la == nil { + continue + } + la.bytesSent += r.Last + } + for _, r := range metrics["container_net_tcp_bytes_received"] { + la := edgeFromConnectionLabels(w, r.Metric) + if la == nil { + continue + } + la.bytesRecv += r.Last + } + + return w +} + +// edgeFromConnectionLabels resolves the (src_app, dst_app) pair from one +// connection metric's labels. Returns the linkAccum for that edge or nil +// if either end can't be resolved to a known application. +// +// Coroot's eBPF metrics typically expose src/destination via: +// +// src_workload_kind, src_workload_name, src_workload_namespace +// destination_workload_kind, destination_workload_name, destination_workload_namespace +// destination_ip (for traffic to non-K8s endpoints or unmatched workloads) +// +// In practice, `*_workload_kind` is sometimes omitted; we resolve by +// (name, namespace) when kind is missing. +func edgeFromConnectionLabels(w *world, l map[string]string) *linkAccum { + srcKind := labelOr(l, "src_workload_kind", labelOr(l, "src_kind", "")) + srcName := labelOr(l, "src_workload_name", "") + srcNS := labelOr(l, "src_workload_namespace", "") + if srcName == "" { + return nil + } + srcK, ok := w.resolveApp(srcKind, srcName, srcNS) + if !ok { + return nil + } + + dstKind := labelOr(l, "destination_workload_kind", "") + dstName := labelOr(l, "destination_workload_name", "") + dstNS := labelOr(l, "destination_workload_namespace", "") + var dstK string + switch { + case dstName != "": + if k, ok := w.resolveApp(dstKind, dstName, dstNS); ok { + dstK = k + } else { + // Workload labelled but not yet known — register it as a + // Deployment (most common case) so downstream lookups resolve. + id := ApplicationID{ + Name: trimReplicaSetSuffix(dstName), + Kind: orDefault(normalizeKind(dstKind), "Deployment"), + Namespace: dstNS, + } + w.upsertApp(id) + dstK = appKey(id) + } + default: + dstK = w.resolveAppByIP(labelOr(l, "destination_ip", "")) + } + if dstK == "" || dstK == srcK { + return nil + } + return w.addEdge(srcK, dstK) +} + +// resolveApp finds an existing app key by (kind, name, namespace). When +// kind is empty (Coroot eBPF metrics often omit it), falls back to a +// name+namespace search across known apps. +func (w *world) resolveApp(kind, name, namespace string) (string, bool) { + kind = normalizeKind(kind) + if kind != "" { + k := appKey(ApplicationID{Name: name, Kind: kind, Namespace: namespace}) + if _, ok := w.applications[k]; ok { + return k, true + } + } + for k, a := range w.applications { + if a.id.Name == name && a.id.Namespace == namespace { + return k, true + } + } + return "", false +} + +// normalizeKind collapses "ReplicaSet" → "Deployment" (RS pods belong to a +// Deployment from a topology perspective). +func normalizeKind(k string) string { + if k == "ReplicaSet" { + return "Deployment" + } + return k +} + +func orDefault(s, fallback string) string { + if s == "" { + return fallback + } + return s +} + +func applyReplicaCount(w *world, results []promResult, kind, labelKey string) { + for _, r := range results { + name := labelOr(r.Metric, labelKey, "") + ns := labelOr(r.Metric, "namespace", "") + if name == "" { + continue + } + a := w.upsertApp(ApplicationID{Name: name, Kind: kind, Namespace: ns}) + if r.HasVal { + a.desired = int(r.Last) + } + } +} + +func addContainerStat(w *world, results []promResult, accumulate func(*containerSums, float64)) { + for _, r := range results { + l := r.Metric + ownerKind := labelOr(l, "owner_kind", labelOr(l, "workload_kind", "")) + ownerName := labelOr(l, "owner_name", labelOr(l, "workload_name", "")) + ns := labelOr(l, "namespace", "") + if ownerKind == "ReplicaSet" { + ownerKind = "Deployment" + ownerName = trimReplicaSetSuffix(ownerName) + } + if ownerName == "" || ownerKind == "" { + continue + } + k := appKey(ApplicationID{Name: ownerName, Kind: ownerKind, Namespace: ns}) + if _, ok := w.applications[k]; !ok { + continue + } + s := w.containerStatsFor(k) + if r.HasVal { + accumulate(s, r.Last) + } + } +} + +// trimReplicaSetSuffix strips the typical "-" suffix Kubernetes +// appends to ReplicaSet names so we can derive the Deployment name. Best- +// effort: assumes the suffix is the last "-" segment. +func trimReplicaSetSuffix(rsName string) string { + if rsName == "" { + return rsName + } + // Walk back to the last '-' and assume the suffix is a hash. + for i := len(rsName) - 1; i > 0; i-- { + if rsName[i] == '-' { + return rsName[:i] + } + } + return rsName +} + +// matchesLabelPrefix returns true when a Prometheus label name is a pod +// label exposed via kube-state-metrics's `label_*` projection. +func matchesLabelPrefix(name string) bool { + const prefix = "label_" + return len(name) > len(prefix) && name[:len(prefix)] == prefix +} + +func stripLabelPrefix(name string) string { + const prefix = "label_" + return name[len(prefix):] +} diff --git a/runner/pkg/servicemap/build_test.go b/runner/pkg/servicemap/build_test.go new file mode 100644 index 0000000..18f9577 --- /dev/null +++ b/runner/pkg/servicemap/build_test.go @@ -0,0 +1,210 @@ +package servicemap + +import ( + "testing" +) + +// metric is a tiny helper to construct a promResult. +func metric(labels map[string]string, last float64, has bool) promResult { + return promResult{Metric: labels, Last: last, HasVal: has} +} + +// TestBuild_SingleEdge wires up two pods owned by two Deployments and a +// connection between them. Verifies the world has both apps + an edge. +func TestBuild_SingleEdge(t *testing.T) { + metrics := map[string][]promResult{ + "kube_pod_info": { + metric(map[string]string{ + "pod": "frontend-abc-1", "namespace": "shop", "pod_ip": "10.0.0.1", + "created_by_kind": "ReplicaSet", "created_by_name": "frontend-abc", + }, 1, true), + metric(map[string]string{ + "pod": "backend-def-1", "namespace": "shop", "pod_ip": "10.0.0.2", + "created_by_kind": "ReplicaSet", "created_by_name": "backend-def", + }, 1, true), + }, + "container_net_tcp_successful_connects": { + metric(map[string]string{ + "src_workload_kind": "Deployment", + "src_workload_name": "frontend", + "src_workload_namespace": "shop", + "destination_workload_kind": "Deployment", + "destination_workload_name": "backend", + "destination_workload_namespace": "shop", + }, 5.0, true), + }, + "container_http_requests_count": { + metric(map[string]string{ + "src_workload_name": "frontend", + "src_workload_namespace": "shop", + "destination_workload_name": "backend", + "destination_workload_namespace": "shop", + }, 100.0, true), + }, + } + + w := build(metrics) + if len(w.applications) < 2 { + t.Fatalf("expected ≥2 apps, got %d: %v", len(w.applications), keysOf(w.applications)) + } + if _, ok := w.applications[appKey(ApplicationID{Name: "frontend", Kind: "Deployment", Namespace: "shop"})]; !ok { + t.Error("frontend app missing") + } + if _, ok := w.applications[appKey(ApplicationID{Name: "backend", Kind: "Deployment", Namespace: "shop"})]; !ok { + t.Error("backend app missing") + } + dsts, ok := w.edges[appKey(ApplicationID{Name: "frontend", Kind: "Deployment", Namespace: "shop"})] + if !ok || len(dsts) != 1 { + t.Fatalf("expected one edge from frontend, got %v", dsts) + } + for _, la := range dsts { + if la.protocol != "HTTP" { + t.Errorf("protocol = %q; want HTTP", la.protocol) + } + if la.requests <= 0 { + t.Errorf("requests = %v; want >0", la.requests) + } + } +} + +func TestBuild_BarePod(t *testing.T) { + // Pod with no owner — falls back to Pod kind with the pod name as app name. + metrics := map[string][]promResult{ + "kube_pod_info": { + metric(map[string]string{ + "pod": "lonely-pod", + "namespace": "n", + "pod_ip": "10.0.0.5", + }, 1, true), + }, + } + w := build(metrics) + if _, ok := w.applications[appKey(ApplicationID{Name: "lonely-pod", Kind: "Pod", Namespace: "n"})]; !ok { + t.Errorf("bare pod app missing: %v", keysOf(w.applications)) + } +} + +func TestBuild_LabelsExtractedFromPodLabels(t *testing.T) { + metrics := map[string][]promResult{ + "kube_pod_info": { + metric(map[string]string{ + "pod": "frontend-a", "namespace": "shop", "pod_ip": "10.0.0.1", + "created_by_kind": "ReplicaSet", "created_by_name": "frontend-abc", + }, 1, true), + }, + "kube_pod_labels": { + metric(map[string]string{ + "namespace": "shop", + "created_by_kind": "ReplicaSet", "created_by_name": "frontend-abc", + "label_app": "frontend", + "label_env": "prod", + "non_label_x": "ignore-me", + }, 1, true), + }, + } + w := build(metrics) + a := w.applications[appKey(ApplicationID{Name: "frontend", Kind: "Deployment", Namespace: "shop"})] + if a == nil { + t.Fatal("frontend app missing") + } + if a.labels["app"] != "frontend" || a.labels["env"] != "prod" { + t.Errorf("labels = %v", a.labels) + } + if _, ok := a.labels["non_label_x"]; ok { + t.Errorf("non-label-prefixed key should be skipped") + } +} + +func TestBuild_FailedInstance(t *testing.T) { + metrics := map[string][]promResult{ + "kube_pod_info": { + metric(map[string]string{ + "pod": "frontend-a", "namespace": "shop", "pod_ip": "10.0.0.1", + "created_by_kind": "ReplicaSet", "created_by_name": "frontend-abc", + }, 1, true), + }, + "kube_pod_status_ready": { + // status_ready=0 → failed + metric(map[string]string{"pod": "frontend-a", "namespace": "shop"}, 0, true), + }, + } + w := build(metrics) + a := w.applications[appKey(ApplicationID{Name: "frontend", Kind: "Deployment", Namespace: "shop"})] + if a == nil { + t.Fatal("app missing") + } + if !a.instances["frontend-a"].IsFailed { + t.Error("frontend-a should be failed when ready=0") + } +} + +func TestBuild_ContainerStatsAccumulate(t *testing.T) { + metrics := map[string][]promResult{ + "kube_pod_info": { + metric(map[string]string{ + "pod": "frontend-a", "namespace": "shop", "pod_ip": "10.0.0.1", + "created_by_kind": "ReplicaSet", "created_by_name": "frontend-abc", + }, 1, true), + }, + "container_oom_kills_total": { + metric(map[string]string{ + "workload_kind": "Deployment", "workload_name": "frontend", "namespace": "shop", + }, 3, true), + metric(map[string]string{ + "workload_kind": "Deployment", "workload_name": "frontend", "namespace": "shop", + }, 2, true), + }, + "container_restarts": { + metric(map[string]string{ + "workload_kind": "Deployment", "workload_name": "frontend", "namespace": "shop", + }, 5, true), + }, + } + w := build(metrics) + k := appKey(ApplicationID{Name: "frontend", Kind: "Deployment", Namespace: "shop"}) + s := w.containerStats[k] + if s == nil { + t.Fatal("container stats missing") + } + if s.oomKills != 5 || s.restarts != 5 { + t.Errorf("oom=%v restarts=%v; want 5 5", s.oomKills, s.restarts) + } +} + +func TestBuild_ServiceClusterIPMappedToService(t *testing.T) { + metrics := map[string][]promResult{ + "kube_service_info": { + metric(map[string]string{ + "service": "frontend-svc", "namespace": "shop", "cluster_ip": "10.96.0.5", + }, 1, true), + }, + } + w := build(metrics) + got := w.serviceIPToApp["10.96.0.5"] + want := appKey(ApplicationID{Name: "frontend-svc", Kind: "Service", Namespace: "shop"}) + if got != want { + t.Errorf("serviceIP map: got=%q want=%q", got, want) + } +} + +func TestTrimReplicaSetSuffix(t *testing.T) { + cases := []struct{ in, want string }{ + {"frontend-abc123", "frontend"}, + {"my-app", "my"}, + {"single", "single"}, + {"", ""}, + } + for _, c := range cases { + if got := trimReplicaSetSuffix(c.in); got != c.want { + t.Errorf("trimReplicaSetSuffix(%q) = %q; want %q", c.in, got, c.want) + } + } +} + +func keysOf(m map[string]*application) []string { + out := make([]string, 0, len(m)) + for k := range m { + out = append(out, k) + } + return out +} diff --git a/runner/pkg/servicemap/handlers.go b/runner/pkg/servicemap/handlers.go new file mode 100644 index 0000000..84b17ff --- /dev/null +++ b/runner/pkg/servicemap/handlers.go @@ -0,0 +1,104 @@ +package servicemap + +import ( + "context" + "errors" + + "github.com/google/uuid" + + "github.com/nudgebee/nudgebee-agent/pkg/dispatch" + "github.com/nudgebee/nudgebee-agent/pkg/enrichers" +) + +// Handlers wires the service-map actions. service_map and +// service_map_enricher share the same Build implementation here — +// both route into generate_service_map — but they have different wire +// shapes: +// +// - `service_map` is called directly by the UI +// (KubernetesServiceMap.jsx:442, ServiceMapCard.js:118). UI reads +// `response.data.data` as an array, so the agent must wrap the +// []Application in `{data: [...]}`. +// - `service_map_enricher` and `traces_dependency_map` are called by +// api-server playbooks / LLM tools. They expect a Finding envelope +// (findings[0].evidence[0].data → JSON-stringified blocks) like +// every other enricher, so we wrap via the standard +// enrichers.JSONBlock + FindingResponse path. +// +// Without these distinct wrappers, the canary's eBPF Service Map page +// rendered empty even though the agent returned a healthy ~1MB +// []Application slice — `res.data.data` was undefined because the +// outer wrapper key was missing. +func Handlers(s *Service, accountID string) map[string]dispatch.Handler { + if s == nil { + return nil + } + build := func(ctx context.Context, p map[string]any) ([]Application, error) { + return s.Build(ctx, parseFilterParams(p)) + } + + // service_map: thin {data: [...]} wrapper for the UI. + directWrap := func(ctx context.Context, p map[string]any) (any, error) { + apps, err := build(ctx, p) + if err != nil { + return nil, err + } + return map[string]any{"data": apps}, nil + } + + // service_map_enricher / traces_dependency_map: Finding-shape envelope. + enricherWrap := func(ctx context.Context, p map[string]any) (any, error) { + apps, err := build(ctx, p) + if err != nil { + return nil, err + } + block, err := enrichers.JSONBlock(apps) + if err != nil { + return nil, err + } + return enrichers.FindingResponse(accountID, uuid.Nil, block) + } + + return map[string]dispatch.Handler{ + "service_map": directWrap, + "service_map_enricher": enricherWrap, + "traces_dependency_map": enricherWrap, + } +} + +func parseFilterParams(p map[string]any) FilterParams { + out := FilterParams{ + WorkloadName: str(p, "workload_name"), + WorkloadNamespace: str(p, "workload_namespace"), + StartTime: str(p, "r_start_time"), + EndTime: str(p, "r_end_time"), + } + if v, ok := p["duration"].(float64); ok { + out.Duration = int(v) + } + // Some callers nest the filter under "workload_filter". + if wf, ok := p["workload_filter"].(map[string]any); ok { + if out.WorkloadName == "" { + out.WorkloadName = str(wf, "workload_name") + } + if out.WorkloadNamespace == "" { + out.WorkloadNamespace = str(wf, "workload_namespace") + } + } + return out +} + +func str(m map[string]any, k string) string { + if m == nil { + return "" + } + s, _ := m[k].(string) + return s +} + +// errNoProm is returned when callers try to dispatch service_map without +// a Prometheus client wired. Kept exported for tests that want to assert +// the exact error. +var errNoProm = errors.New("servicemap: prometheus client not configured") + +var _ = errNoProm // silence unused warning when tests don't import it diff --git a/runner/pkg/servicemap/parser.go b/runner/pkg/servicemap/parser.go new file mode 100644 index 0000000..52c20cc --- /dev/null +++ b/runner/pkg/servicemap/parser.go @@ -0,0 +1,90 @@ +package servicemap + +import ( + "encoding/json" + "strconv" +) + +// promResult is one entry in a Prometheus query_range response. We parse +// only what we need — labels (a flat map[string]string) and the most +// recent value (.last in render_service_map). +type promResult struct { + Metric map[string]string + Last float64 // value at the latest timestamp; NaN if no points + HasVal bool +} + +// promQueryRangeResponse mirrors the JSON shape Prometheus returns from +// /api/v1/query_range. We unmarshal then walk it; the agent's prometheus +// client (pkg/observability/prometheus) returns this verbatim as +// json.RawMessage. +type promQueryRangeResponse struct { + Status string `json:"status"` + Data struct { + ResultType string `json:"resultType"` + Result []promResultRaw `json:"result"` + } `json:"data"` +} + +type promResultRaw struct { + Metric map[string]string `json:"metric"` + // values is [[ts, "string-value"], ...] + Values [][]any `json:"values"` +} + +// parsePromRangeResponse extracts the labels + last value from each result +// in a Prometheus query_range response. Empty/error responses become an +// empty slice with no error — callers can distinguish "no metric data" from +// "fetch failed" via a non-nil error path further up. +func parsePromRangeResponse(raw json.RawMessage) ([]promResult, error) { + if len(raw) == 0 { + return nil, nil + } + var resp promQueryRangeResponse + if err := json.Unmarshal(raw, &resp); err != nil { + return nil, err + } + if resp.Status != "success" { + return nil, nil + } + out := make([]promResult, 0, len(resp.Data.Result)) + for _, r := range resp.Data.Result { + pr := promResult{Metric: r.Metric} + if v, ok := lastValue(r.Values); ok { + pr.Last = v + pr.HasVal = true + } + out = append(out, pr) + } + return out, nil +} + +// lastValue extracts the final sample's float from a Prometheus values pair +// list. Each sample is [timestamp, ""]. Returns false if +// the list is empty or the value can't parse. +func lastValue(values [][]any) (float64, bool) { + if len(values) == 0 { + return 0, false + } + last := values[len(values)-1] + if len(last) != 2 { + return 0, false + } + s, ok := last[1].(string) + if !ok { + return 0, false + } + v, err := strconv.ParseFloat(s, 64) + if err != nil { + return 0, false + } + return v, true +} + +// labelOr returns labels[key] or fallback if absent. +func labelOr(labels map[string]string, key, fallback string) string { + if v, ok := labels[key]; ok && v != "" { + return v + } + return fallback +} diff --git a/runner/pkg/servicemap/parser_test.go b/runner/pkg/servicemap/parser_test.go new file mode 100644 index 0000000..6ef6b1f --- /dev/null +++ b/runner/pkg/servicemap/parser_test.go @@ -0,0 +1,68 @@ +package servicemap + +import ( + "encoding/json" + "testing" +) + +func TestParsePromRangeResponse_HappyPath(t *testing.T) { + raw := json.RawMessage(`{ + "status":"success", + "data":{ + "resultType":"matrix", + "result":[ + {"metric":{"job":"prometheus","instance":"a"},"values":[[100,"1.5"],[200,"2.5"]]}, + {"metric":{"job":"prometheus","instance":"b"},"values":[[100,"NaN"]]} + ] + } + }`) + got, err := parsePromRangeResponse(raw) + if err != nil { + t.Fatal(err) + } + if len(got) != 2 { + t.Fatalf("got %d results, want 2", len(got)) + } + if !got[0].HasVal || got[0].Last != 2.5 { + t.Errorf("first.last = %v; want 2.5", got[0].Last) + } + if got[0].Metric["instance"] != "a" { + t.Errorf("first.instance = %s", got[0].Metric["instance"]) + } +} + +func TestParsePromRangeResponse_EmptyAndError(t *testing.T) { + if got, err := parsePromRangeResponse(nil); err != nil || got != nil { + t.Errorf("nil input: got=%v err=%v", got, err) + } + if got, err := parsePromRangeResponse([]byte(`{"status":"error","data":{}}`)); err != nil || got != nil { + t.Errorf("error status should produce nil, got %v %v", got, err) + } + if _, err := parsePromRangeResponse([]byte(`not json`)); err == nil { + t.Error("expected JSON parse error") + } +} + +func TestLastValue_BadInput(t *testing.T) { + if _, ok := lastValue(nil); ok { + t.Error("nil values should not parse") + } + if _, ok := lastValue([][]any{{100}}); ok { + t.Error("malformed pair should not parse") + } + if _, ok := lastValue([][]any{{100, 42}}); ok { + t.Error("non-string value should not parse") + } +} + +func TestLabelOr(t *testing.T) { + if labelOr(map[string]string{"k": "v"}, "k", "x") != "v" { + t.Error("labelOr should return present value") + } + if labelOr(map[string]string{}, "k", "fallback") != "fallback" { + t.Error("labelOr should fall back on missing key") + } + if labelOr(map[string]string{"k": ""}, "k", "fallback") != "fallback" { + t.Error("labelOr should fall back on empty value") + } +} diff --git a/runner/pkg/servicemap/queries.go b/runner/pkg/servicemap/queries.go new file mode 100644 index 0000000..47a12c6 --- /dev/null +++ b/runner/pkg/servicemap/queries.go @@ -0,0 +1,141 @@ +// Package servicemap implements the `map/` service-map builder (Group I in +// the deprecation plan). It queries in-cluster Prometheus for metrics emitted +// by the Coroot eBPF node agent, builds a topology of applications and their +// connections, and renders a wire format the backend consumes. +// +// MVP fidelity note: this implementation covers the orchestration + query +// catalog + core graph-build logic. Several finer-grained features +// (per-protocol detection across upstreams, NaN handling for +// throttle/restart sums, application-category classification) are simplified +// or deferred. Phase-4 shadow-diff against the legacy output will guide +// where to deepen. +package servicemap + +import "strings" + +// Queries is the per-query map. Each value is a PromQL expression with +// $RANGE, $SRC_FILTER, $DST_FILTER, $POD_FILTER, $NAMESPACE_FILTER +// placeholders and a __CLUSTER__ token (replaced at fetch time with the +// cluster filter). +var Queries = map[string]string{ + "node_info": "node_info{__CLUSTER__}", + "kube_node_info": "kube_node_info{__CLUSTER__}", + "kube_service_info": "kube_service_info{__CLUSTER__}", + "kube_pod_info": "kube_pod_info{__CLUSTER__}", + "kube_pod_labels": "kube_pod_labels{__CLUSTER__}", + "kube_pod_status_phase": "kube_pod_status_phase{__CLUSTER__}", + "kube_pod_status_ready": `kube_pod_status_ready{__CLUSTER__ condition="true"}`, + "kube_pod_status_scheduled": `kube_pod_status_scheduled{__CLUSTER__ condition="true"} > 0`, + "kube_deployment_spec_replicas": "kube_deployment_spec_replicas{__CLUSTER__}", + "kube_daemonset_status_desired_number_scheduled": "kube_daemonset_status_desired_number_scheduled{__CLUSTER__}", + "kube_statefulset_replicas": "kube_statefulset_replicas{__CLUSTER__}", + "container_info": "container_info{__CLUSTER__}", + "container_application_type": "container_application_type{__CLUSTER__}", + "container_net_tcp_successful_connects": "rate(container_net_tcp_successful_connects_total{__CLUSTER__}[$RANGE]) > 0", + "container_net_tcp_failed_connects": "rate(container_net_tcp_failed_connects_total{__CLUSTER__}[$RANGE]) > 0", + "container_net_tcp_active_connections": "container_net_tcp_active_connections{__CLUSTER__} > 0", + "container_net_tcp_retransmits": "rate(container_net_tcp_retransmits_total{__CLUSTER__}[$RANGE]) > 0", + "container_http_requests_total_count": "increase(container_http_requests_total{__CLUSTER__}[$RANGE])", + "container_http_requests_count": "rate(container_http_requests_total{__CLUSTER__}[$RANGE])", + "container_http_requests_failure_count": `rate(container_http_requests_total{__CLUSTER__ status=~"4..|5.."}[$RANGE]) > 0`, + "container_http_requests_latency": "(rate(container_http_requests_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_http_requests_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_postgres_requests_count": "rate(container_postgres_queries_total{__CLUSTER__}[$RANGE])", + "container_postgres_requests_total_count": "increase(container_postgres_queries_total{__CLUSTER__}[$RANGE]) > 0", + "container_postgres_requests_latency": "(rate(container_postgres_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_postgres_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_mysql_queries_total_count": "increase(container_mysql_queries_total{__CLUSTER__}[$RANGE]) > 0", + "container_mysql_requests_latency": "(rate(container_mysql_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_mysql_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_mysql_queries_count": "rate(container_mysql_queries_total{__CLUSTER__}[$RANGE])", + "container_redis_queries_count": "rate(container_redis_queries_total{__CLUSTER__}[$RANGE])", + "container_redis_queries_total_count": "increase(container_redis_queries_total{__CLUSTER__}[$RANGE]) > 0", + "container_redis_requests_latency": "(rate(container_redis_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_redis_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_kafka_requests_count": "rate(container_kafka_requests_total{__CLUSTER__}[$RANGE])", + "container_kafka_requests_total_count": "increase(container_kafka_requests_total{__CLUSTER__}[$RANGE]) > 0", + "container_kafka_requests_latency": "(rate(container_kafka_requests_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_kafka_requests_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_memcached_queries_count": "rate(container_memcached_queries_total{__CLUSTER__}[$RANGE])", + "container_memcached_queries_total_count": "increase(container_memcached_queries_total{__CLUSTER__}[$RANGE])", + "container_memcached_requests_latency": "rate(container_memcached_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_memcached_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])", + "container_mongo_queries_count": "rate(container_mongo_queries_total{__CLUSTER__}[$RANGE])", + "container_mongo_queries_total_count": "increase(container_mongo_queries_total{__CLUSTER__}[$RANGE]) > 0", + "container_mongo_requests_latency": "(rate(container_mongo_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_mongo_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_cassandra_queries_count": "rate(container_cassandra_queries_total{__CLUSTER__}[$RANGE])", + "container_cassandra_queries_total_count": "increase(container_cassandra_queries_total{__CLUSTER__}[$RANGE]) > 0", + "container_cassandra_requests_latency": "(rate(container_cassandra_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_cassandra_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_clickhouse_queries_count": "rate(container_clickhouse_queries_total{__CLUSTER__}[$RANGE])", + "container_clickhouse_queries_total_count": "increase(container_clickhouse_queries_total{__CLUSTER__}[$RANGE]) > 0", + "container_clickhouse_requests_latency": "(rate(container_clickhouse_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_clickhouse_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_zookeeper_requests_total": "rate(container_zookeeper_requests_total{__CLUSTER__}[$RANGE])", + "container_zookeeper_requests_total_count": "increase(container_zookeeper_requests_total{__CLUSTER__}[$RANGE]) > 0", + "container_zookeeper_requests_latency": "(rate(container_zookeeper_requests_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_zookeeper_requests_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_rabbitmq_messages_total_count": "increase(container_rabbitmq_messages_total{__CLUSTER__}[$RANGE]) > 0", + "container_nats_messages_total": "increase(container_nats_messages_total{__CLUSTER__}[$RANGE]) > 0", + "container_rabbitmq_messages": "rate(container_rabbitmq_messages_total{__CLUSTER__}[$RANGE])", + "container_nats_messages": "rate(container_nats_messages_total{__CLUSTER__}[$RANGE])", + "ip_to_fqdn": "sum by(fqdn, ip) (ip_to_fqdn{__CLUSTER__})", + "container_net_tcp_bytes_sent": "rate(container_net_tcp_bytes_sent_total{__CLUSTER__}[$RANGE]) > 0", + "container_net_tcp_bytes_received": "rate(container_net_tcp_bytes_received_total{__CLUSTER__}[$RANGE]) > 0", + "container_cpu_usage": "rate(container_resources_cpu_usage_seconds_total{__CLUSTER__}[$RANGE])", + "container_cpu_delay": "rate(container_resources_cpu_delay_seconds_total{__CLUSTER__}[$RANGE])", + "container_throttled_time": "rate(container_resources_cpu_throttled_seconds_total{__CLUSTER__}[$RANGE])", + "container_memory_limit": "container_resources_memory_limit_bytes{__CLUSTER__}", + "container_memory_rss": "container_resources_memory_rss_bytes{__CLUSTER__}", + "container_memory_cache": "container_resources_memory_cache_bytes{__CLUSTER__}", + "container_oom_kills_total": "increase(container_oom_kills_total{__CLUSTER__}[$RANGE]) % 10000000", + "container_restarts": "increase(container_restart_count_total{__CLUSTER__}[$RANGE]) % 10000000", + "container_volume_size": "container_resources_disk_size_bytes{__CLUSTER__}", + "container_volume_used": "container_resources_disk_used_bytes{__CLUSTER__}", + "kube_service_status_load_balancer_ingress": "kube_service_status_load_balancer_ingress", +} + +// ApplicationQueries is used when service_map is invoked with a workload +// filter. +var ApplicationQueries = map[string]string{ + "kube_pod_info": "kube_pod_info{__CLUSTER__}", + "kube_pod_labels": "kube_pod_labels{__CLUSTER__}", + "kube_pod_status_phase": "kube_pod_status_phase{__CLUSTER__}", + "kube_pod_status_ready": "kube_pod_status_ready{__CLUSTER__}", + "kube_service_info": "kube_service_info{__CLUSTER__}", + "kube_deployment_spec_replicas": "kube_deployment_spec_replicas{__CLUSTER__}", + "kube_daemonset_status_desired_number_scheduled": "kube_daemonset_status_desired_number_scheduled{__CLUSTER__}", + "kube_statefulset_replicas": "kube_statefulset_replicas{__CLUSTER__}", + "kube_pod_status_scheduled": `kube_pod_status_scheduled{__CLUSTER__ condition="true"} > 0`, + "container_net_tcp_successful_connects": "(rate(container_net_tcp_successful_connects_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_successful_connects_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", + "container_net_tcp_failed_connects": "(rate(container_net_tcp_failed_connects_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_failed_connects_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", + "container_net_tcp_retransmits": "(rate(container_net_tcp_retransmits_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_retransmits_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", + "container_http_requests_total_count": "(increase(container_http_requests_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (increase(container_http_requests_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", + "container_http_requests_count": "(rate(container_http_requests_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_http_requests_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", + "container_application_type": "container_application_type{__CLUSTER__}", + "ip_to_fqdn": "sum by(fqdn, ip) (ip_to_fqdn{__CLUSTER__})", + "container_net_tcp_bytes_sent": "rate(container_net_tcp_bytes_sent_total{__CLUSTER__ $DST_FILTER}[$RANGE]) or rate(container_net_tcp_bytes_sent_total{__CLUSTER__ $SRC_FILTER}[$RANGE])", + "container_net_tcp_bytes_received": "rate(container_net_tcp_bytes_received_total{__CLUSTER__ $DST_FILTER}[$RANGE]) or rate(container_net_tcp_bytes_received_total{__CLUSTER__ $SRC_FILTER}[$RANGE])", +} + +// expandPlaceholders substitutes $RANGE/$SRC_FILTER/$DST_FILTER/$POD_FILTER/ +// $NAMESPACE_FILTER and the __CLUSTER__ token in one PromQL string. +// +// Expansion logic for the placeholders. +func expandPlaceholders(query, rangeStep, srcFilter, dstFilter, podFilter, nsFilter, clusterFilter string) string { + q := strings.ReplaceAll(query, "$RANGE", rangeStep) + q = strings.ReplaceAll(q, "$SRC_FILTER", srcFilter) + q = strings.ReplaceAll(q, "$DST_FILTER", dstFilter) + q = strings.ReplaceAll(q, "$POD_FILTER", podFilter) + q = strings.ReplaceAll(q, "$NAMESPACE_FILTER", nsFilter) + q = strings.ReplaceAll(q, "__CLUSTER__", clusterFilter) + return q +} + +// dictToPrometheusFilter ports the backend — turns a +// {key: value} map into a comma-separated PromQL label-filter string. +// Values containing '%' get treated as LIKE (regex .*); otherwise =~ exact. +func dictToPrometheusFilter(m map[string]string) string { + if len(m) == 0 { + return "" + } + parts := make([]string, 0, len(m)) + for k, v := range m { + if strings.Contains(v, "%") { + v = strings.ReplaceAll(v, "%", ".*") + } + parts = append(parts, k+`=~"`+v+`"`) + } + return strings.Join(parts, ",") +} diff --git a/runner/pkg/servicemap/queries_test.go b/runner/pkg/servicemap/queries_test.go new file mode 100644 index 0000000..696770e --- /dev/null +++ b/runner/pkg/servicemap/queries_test.go @@ -0,0 +1,62 @@ +package servicemap + +import ( + "strings" + "testing" +) + +func TestQueries_HasExpectedKeys(t *testing.T) { + want := []string{ + "kube_pod_info", "kube_pod_labels", "kube_service_info", + "kube_deployment_spec_replicas", "container_net_tcp_successful_connects", + "container_http_requests_count", "container_http_requests_latency", + "container_oom_kills_total", "container_restarts", + "ip_to_fqdn", + } + for _, k := range want { + if _, ok := Queries[k]; !ok { + t.Errorf("Queries missing %q", k) + } + } +} + +func TestApplicationQueries_HasFilteredVariants(t *testing.T) { + for _, k := range []string{"container_net_tcp_successful_connects", "container_http_requests_count"} { + q := ApplicationQueries[k] + if !strings.Contains(q, "$SRC_FILTER") || !strings.Contains(q, "$DST_FILTER") { + t.Errorf("%s should reference $SRC_FILTER and $DST_FILTER, got: %s", k, q) + } + } +} + +func TestExpandPlaceholders(t *testing.T) { + q := `rate(container_http_requests_total{__CLUSTER__ $SRC_FILTER}[$RANGE])` + got := expandPlaceholders(q, "60s", + `src_workload_name=~"frontend"`, + `destination_workload_name=~"frontend"`, + `pod=~".*"`, ``, `cluster="us-east1",`) + want := `rate(container_http_requests_total{cluster="us-east1", src_workload_name=~"frontend"}[60s])` + if got != want { + t.Errorf("expand mismatch:\n got: %s\n want: %s", got, want) + } +} + +func TestDictToPrometheusFilter_LikeAndExact(t *testing.T) { + cases := []struct { + in map[string]string + want []string // unordered substrings + }{ + {nil, []string{""}}, + {map[string]string{}, []string{""}}, + {map[string]string{"src_workload_name": "frontend"}, []string{`src_workload_name=~"frontend"`}}, + {map[string]string{"pod": "frontend%"}, []string{`pod=~"frontend.*"`}}, // % → .* + } + for _, c := range cases { + got := dictToPrometheusFilter(c.in) + for _, sub := range c.want { + if !strings.Contains(got, sub) { + t.Errorf("dictToPrometheusFilter(%v) = %q; want substring %q", c.in, got, sub) + } + } + } +} diff --git a/runner/pkg/servicemap/render.go b/runner/pkg/servicemap/render.go new file mode 100644 index 0000000..beb3c6f --- /dev/null +++ b/runner/pkg/servicemap/render.go @@ -0,0 +1,148 @@ +package servicemap + +import "math" + +// render walks the world and emits the Application list in the wire shape +// the api-server consumer expects. Apps without any edges (neither +// upstream nor downstream) are dropped (`apps_used` filter). +func render(w *world) []Application { + out := make([]Application, 0, len(w.applications)) + used := map[string]bool{} + + // Build inverse-edge index for downstream lookup (dst → src list). + downstreams := map[string]map[string]struct{}{} + for srcK, dsts := range w.edges { + for dstK := range dsts { + if downstreams[dstK] == nil { + downstreams[dstK] = map[string]struct{}{} + } + downstreams[dstK][srcK] = struct{}{} + } + } + + for k, a := range w.applications { + app := Application{ + ID: a.id, + Labels: a.labels, + Status: StatusUnknown, + Indicators: []any{}, + Upstreams: []UpstreamLink{}, + Downstreams: []DownstreamLink{}, + Type: []string{}, + Instances: []Instance{}, + DesiredInstances: a.desired, + IsHealthy: true, + } + // Failed-instance count. + for _, inst := range a.instances { + app.Instances = append(app.Instances, inst) + if inst.IsFailed { + app.FailedInstances++ + } + } + + // Container stats roll-up. + if s, ok := w.containerStats[k]; ok { + app.OOMKills = saneInt(s.oomKills) + app.Restarts = saneInt(s.restarts) + app.CPUThrottlingTime = saneFloat(s.cpuThrottlingTime) + app.VolumeSize = saneFloat(s.volumeSize) + app.VolumeUsed = saneFloat(s.volumeUsed) + } + + // Upstream edges out of this app. Id is a STRING in + // `namespace:kind:name` shape — see UpstreamLink doc + comment in + // types.go for why this differs from DownstreamLink/Application.Id. + if dsts, ok := w.edges[k]; ok { + for dstK, la := range dsts { + dst, ok := w.applications[dstK] + if !ok { + continue + } + link := UpstreamLink{ + ID: idToText(dst.id), + Status: StatusUnknown, + Stats: []string{}, + Weight: saneFloat(la.requests), + Latency: saneFloat(la.latency), + RequestCount: saneFloat(la.requests), + FailureCount: saneFloat(la.failures), + Protocol: protocolOrDefault(la.protocol), + BytesSent: saneFloat(la.bytesSent), + BytesReceived: saneFloat(la.bytesRecv), + } + app.Upstreams = append(app.Upstreams, link) + used[k] = true + used[dstK] = true + } + } + // Downstream pointers (reverse edges). Id stays an object here. + if srcs, ok := downstreams[k]; ok { + for srcK := range srcs { + src, ok := w.applications[srcK] + if !ok { + continue + } + app.Downstreams = append(app.Downstreams, DownstreamLink{ + ID: src.id, + Status: StatusUnknown, + Stats: []string{}, + Protocol: "Unknown", + }) + used[k] = true + used[srcK] = true + } + } + + // Health computation. + if app.CPUThrottlingTime > 0 { + app.IsHealthy = false + app.HealthReason = "CPUThrottling" + } + if app.OOMKills > 0 { + app.IsHealthy = false + app.HealthReason = "OOMKills" + } + if app.Restarts > 0 { + app.IsHealthy = false + app.HealthReason = "Restarts" + } + if app.FailedInstances > 0 { + app.IsHealthy = false + app.HealthReason = "FailedInstances" + } + + out = append(out, app) + } + + // Drop apps with no edges. + filtered := make([]Application, 0, len(out)) + for _, a := range out { + k := appKey(a.ID) + if used[k] { + filtered = append(filtered, a) + } + } + return filtered +} + +func saneFloat(v float64) float64 { + if math.IsNaN(v) || math.IsInf(v, 0) { + return 0 + } + return v +} + +func saneInt(v float64) int { + if math.IsNaN(v) || math.IsInf(v, 0) { + return 0 + } + return int(v) +} + +func protocolOrDefault(p string) string { + if p == "" { + return "Unknown" + } + return p +} diff --git a/runner/pkg/servicemap/render_test.go b/runner/pkg/servicemap/render_test.go new file mode 100644 index 0000000..a8022cd --- /dev/null +++ b/runner/pkg/servicemap/render_test.go @@ -0,0 +1,131 @@ +package servicemap + +import ( + "testing" +) + +func TestRender_DropsAppsWithNoEdges(t *testing.T) { + w := newWorld() + // Three apps: A connects to B; C is orphaned (no edges). + a := ApplicationID{Name: "A", Kind: "Deployment", Namespace: "n"} + b := ApplicationID{Name: "B", Kind: "Deployment", Namespace: "n"} + c := ApplicationID{Name: "C", Kind: "Deployment", Namespace: "n"} + w.upsertApp(a) + w.upsertApp(b) + w.upsertApp(c) + la := w.addEdge(appKey(a), appKey(b)) + la.requests = 10 + la.protocol = "HTTP" + + apps := render(w) + names := map[string]bool{} + for _, app := range apps { + names[app.ID.Name] = true + } + if !names["A"] || !names["B"] { + t.Errorf("A and B should be in output: %v", names) + } + if names["C"] { + t.Error("C had no edges and should be dropped") + } +} + +func TestRender_UpstreamLinkValues(t *testing.T) { + w := newWorld() + a := ApplicationID{Name: "A", Kind: "Deployment", Namespace: "n"} + b := ApplicationID{Name: "B", Kind: "Deployment", Namespace: "n"} + w.upsertApp(a) + w.upsertApp(b) + la := w.addEdge(appKey(a), appKey(b)) + la.requests = 100 + la.failures = 5 + la.latency = 0.25 + la.bytesSent = 1024 + la.bytesRecv = 2048 + la.protocol = "HTTP" + + apps := render(w) + var upA *Application + for i := range apps { + if apps[i].ID.Name == "A" { + upA = &apps[i] + } + } + if upA == nil || len(upA.Upstreams) != 1 { + t.Fatalf("A should have 1 upstream; apps=%+v", apps) + } + link := upA.Upstreams[0] + if link.RequestCount != 100 || link.FailureCount != 5 || link.Latency != 0.25 { + t.Errorf("link metrics: %+v", link) + } + if link.Protocol != "HTTP" || link.BytesSent != 1024 || link.BytesReceived != 2048 { + t.Errorf("link transport: %+v", link) + } +} + +func TestRender_ReverseDownstreamPointers(t *testing.T) { + w := newWorld() + a := ApplicationID{Name: "A", Kind: "Deployment", Namespace: "n"} + b := ApplicationID{Name: "B", Kind: "Deployment", Namespace: "n"} + w.upsertApp(a) + w.upsertApp(b) + la := w.addEdge(appKey(a), appKey(b)) + la.requests = 10 + la.protocol = "HTTP" + + apps := render(w) + var downB *Application + for i := range apps { + if apps[i].ID.Name == "B" { + downB = &apps[i] + } + } + if downB == nil || len(downB.Downstreams) != 1 || downB.Downstreams[0].ID.Name != "A" { + t.Errorf("B should have downstream pointing back to A: %+v", downB) + } +} + +func TestRender_HealthFromContainerStats(t *testing.T) { + w := newWorld() + a := ApplicationID{Name: "A", Kind: "Deployment", Namespace: "n"} + b := ApplicationID{Name: "B", Kind: "Deployment", Namespace: "n"} + w.upsertApp(a) + w.upsertApp(b) + la := w.addEdge(appKey(a), appKey(b)) + la.requests = 1 + w.containerStatsFor(appKey(a)).oomKills = 2 + w.containerStatsFor(appKey(a)).restarts = 0 + + apps := render(w) + for _, app := range apps { + if app.ID.Name == "A" { + if app.OOMKills != 2 { + t.Errorf("A.OOMKills = %d; want 2", app.OOMKills) + } + if app.IsHealthy { + t.Error("A should be unhealthy due to OOMKills") + } + if app.HealthReason != "OOMKills" { + t.Errorf("A.HealthReason = %q; want OOMKills", app.HealthReason) + } + } + } +} + +func TestSaneFloat(t *testing.T) { + if saneFloat(1.5) != 1.5 { + t.Error("saneFloat should pass through finite values") + } + // NaN and Inf return 0. + nan := saneFloat(0.0 / nonZeroNonZero()) + if nan != 0 { + t.Errorf("saneFloat(NaN) = %v; want 0", nan) + } +} + +// nonZeroNonZero produces a non-zero divisor for the NaN expression — Go +// compile-time blocks 0.0/0.0 directly. +func nonZeroNonZero() float64 { + x := 0.0 + return x +} diff --git a/runner/pkg/servicemap/service.go b/runner/pkg/servicemap/service.go new file mode 100644 index 0000000..382cd57 --- /dev/null +++ b/runner/pkg/servicemap/service.go @@ -0,0 +1,141 @@ +package servicemap + +import ( + "context" + "fmt" + "sync" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// Service orchestrates the parallel Prometheus fetches + world build + +// rendering. Holds a Prometheus client; wired by main. +type Service struct { + Prom *prometheus.Client + ClusterName string // optional; used in __CLUSTER__ filter expansion + StepSeconds int // default 3600 (1h step) + MaxParallel int // default 8 — caps concurrent /api/v1/query_range requests +} + +// New returns a service. Pass nil for prom to disable; handlers will reject. +func New(prom *prometheus.Client, clusterName string) *Service { + return &Service{ + Prom: prom, + ClusterName: clusterName, + StepSeconds: 3600, + MaxParallel: 8, + } +} + +// Build fetches all queries in QUERIES (or APPLICATION_QUERIES if a filter +// is set), constructs the world, and renders applications. Returns the +// list ready for JSON encoding. +func (s *Service) Build(ctx context.Context, p FilterParams) ([]Application, error) { + if s.Prom == nil { + return nil, fmt.Errorf("servicemap: prometheus client not configured") + } + + end := time.Now().UTC() + if p.EndTime != "" { + if t, err := time.Parse(time.RFC3339, p.EndTime); err == nil { + end = t + } + } + durationMin := p.Duration + if durationMin <= 0 { + durationMin = 1440 // 24h + } + start := end.Add(-time.Duration(durationMin) * time.Minute) + if p.StartTime != "" { + if t, err := time.Parse(time.RFC3339, p.StartTime); err == nil { + start = t + } + } + + step := s.StepSeconds + if step <= 0 { + step = 3600 + } + + // Filter expansion. The pod_filter default is `pod=~".*"` per + // + srcFilter := "" + dstFilter := "" + podFilter := `pod=~".*"` + nsFilter := "" + if p.WorkloadName != "" { + srcFilter = dictToPrometheusFilter(map[string]string{ + "src_workload_name": p.WorkloadName, + "src_workload_namespace": p.WorkloadNamespace, + }) + dstFilter = dictToPrometheusFilter(map[string]string{ + "destination_workload_name": p.WorkloadName, + "destination_workload_namespace": p.WorkloadNamespace, + }) + podFilter = dictToPrometheusFilter(map[string]string{"pod": p.WorkloadName + "%"}) + nsFilter = dictToPrometheusFilter(map[string]string{"namespace": p.WorkloadNamespace}) + } else if p.WorkloadNamespace != "" { + srcFilter = dictToPrometheusFilter(map[string]string{"src_workload_namespace": p.WorkloadNamespace}) + dstFilter = dictToPrometheusFilter(map[string]string{"destination_workload_namespace": p.WorkloadNamespace}) + nsFilter = dictToPrometheusFilter(map[string]string{"namespace": p.WorkloadNamespace}) + } + clusterFilter := "" + if s.ClusterName != "" { + clusterFilter = `cluster="` + s.ClusterName + `",` + } + + queryList := Queries + if p.WorkloadName != "" || p.WorkloadNamespace != "" { + queryList = ApplicationQueries + } + + rangeStep := fmt.Sprintf("%ds", step) + stepStr := fmt.Sprintf("%ds", step) + startStr := fmt.Sprintf("%d", start.Unix()) + endStr := fmt.Sprintf("%d", end.Unix()) + + // Parallel fetch with a bounded worker pool. + type fetchResult struct { + key string + data []promResult + err error + } + resultsCh := make(chan fetchResult, len(queryList)) + sem := make(chan struct{}, s.MaxParallel) + var wg sync.WaitGroup + + for key, q := range queryList { + key, q := key, q + wg.Add(1) + go func() { + defer wg.Done() + sem <- struct{}{} + defer func() { <-sem }() + + expanded := expandPlaceholders(q, rangeStep, srcFilter, dstFilter, podFilter, nsFilter, clusterFilter) + raw, err := s.Prom.QueryRange(ctx, expanded, startStr, endStr, stepStr, "") + if err != nil { + resultsCh <- fetchResult{key: key, err: err} + return + } + parsed, err := parsePromRangeResponse(raw) + resultsCh <- fetchResult{key: key, data: parsed, err: err} + }() + } + wg.Wait() + close(resultsCh) + + metrics := map[string][]promResult{} + for r := range resultsCh { + if r.err != nil { + // Don't fail the whole map for one bad query — log via the + // caller. Continue with partial data. + continue + } + metrics[r.key] = r.data + } + + w := build(metrics) + return render(w), nil +} diff --git a/runner/pkg/servicemap/service_test.go b/runner/pkg/servicemap/service_test.go new file mode 100644 index 0000000..50513cc --- /dev/null +++ b/runner/pkg/servicemap/service_test.go @@ -0,0 +1,207 @@ +package servicemap + +import ( + "context" + "net/http" + "net/http/httptest" + "strings" + "sync/atomic" + "testing" + "time" + + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// TestService_Build_Integration_HTTP wires the Service to an httptest server +// that responds to /api/v1/query_range with a synthetic Prometheus payload. +// Verifies parallel fetching, world build, and rendering all run end-to-end. +func TestService_Build_FetchesAndRenders(t *testing.T) { + var fetchCount atomic.Int64 + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + fetchCount.Add(1) + q := r.URL.Query().Get("query") + w.Header().Set("Content-Type", "application/json") + // Return synthetic data for the queries we care about; empty for others. + switch { + case strings.Contains(q, "kube_pod_info"): + _, _ = w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[ + {"metric":{"pod":"frontend-abc-1","namespace":"shop","pod_ip":"10.0.0.1","created_by_kind":"ReplicaSet","created_by_name":"frontend-abc"},"values":[[1,"1"]]}, + {"metric":{"pod":"backend-def-1","namespace":"shop","pod_ip":"10.0.0.2","created_by_kind":"ReplicaSet","created_by_name":"backend-def"},"values":[[1,"1"]]} + ]}}`)) + case strings.Contains(q, "container_net_tcp_successful_connects"): + _, _ = w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[ + {"metric":{"src_workload_name":"frontend","src_workload_namespace":"shop","destination_workload_name":"backend","destination_workload_namespace":"shop"},"values":[[1,"5"]]} + ]}}`)) + // HTTP requests count: rate(container_http_requests_total{...}[$RANGE]) + case strings.Contains(q, "rate(container_http_requests_total{"): + _, _ = w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[ + {"metric":{"src_workload_name":"frontend","src_workload_namespace":"shop","destination_workload_name":"backend","destination_workload_namespace":"shop"},"values":[[1,"100"]]} + ]}}`)) + default: + _, _ = w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[]}}`)) + } + })) + defer srv.Close() + + prom := prometheus.New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + s := New(prom, "prod-east") + + ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second) + defer cancel() + apps, err := s.Build(ctx, FilterParams{}) + if err != nil { + t.Fatal(err) + } + + // We sent 65+ queries (len(Queries) ≈ 65); each one fetched once. + if fetchCount.Load() < 50 { + t.Errorf("fetchCount = %d; expected ≥50 parallel fetches", fetchCount.Load()) + } + + // Should produce at least frontend + backend. + names := map[string]bool{} + for _, a := range apps { + names[a.ID.Name] = true + } + if !names["frontend"] || !names["backend"] { + t.Errorf("expected frontend + backend in output; got %v", names) + } + + // Frontend should have an upstream link to backend with HTTP+req=100. + for _, a := range apps { + if a.ID.Name != "frontend" { + continue + } + if len(a.Upstreams) == 0 { + t.Fatal("frontend has no upstreams") + } + l := a.Upstreams[0] + // Upstream Id is a string `namespace:kind:name`. + if !strings.Contains(l.ID, ":backend") { + t.Errorf("upstream target Id = %q; want contains :backend", l.ID) + } + if l.RequestCount <= 0 { + t.Errorf("RequestCount = %v", l.RequestCount) + } + if l.Protocol != "HTTP" { + t.Errorf("Protocol = %q", l.Protocol) + } + } +} + +func TestService_Build_AppliesWorkloadFilter(t *testing.T) { + // When workload_name is set, ApplicationQueries is used (not Queries), + // and the SRC_FILTER / DST_FILTER are populated. Verify the filter + // substitution by inspecting the outgoing PromQL. + var sawFilteredQuery atomic.Bool + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + q := r.URL.Query().Get("query") + if strings.Contains(q, `src_workload_name=~"frontend"`) { + sawFilteredQuery.Store(true) + } + _, _ = w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[]}}`)) + })) + defer srv.Close() + + prom := prometheus.New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + s := New(prom, "prod-east") + ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) + defer cancel() + if _, err := s.Build(ctx, FilterParams{WorkloadName: "frontend", WorkloadNamespace: "shop"}); err != nil { + t.Fatal(err) + } + if !sawFilteredQuery.Load() { + t.Error("expected at least one query with src_workload_name filter") + } +} + +func TestService_Build_RequiresPrometheus(t *testing.T) { + s := &Service{} + _, err := s.Build(context.Background(), FilterParams{}) + if err == nil { + t.Error("expected error when prometheus client unset") + } +} + +func TestService_Build_TolerantOfPartialFetchErrors(t *testing.T) { + // One failing query should not kill the whole map — the world is built + // from whatever did succeed. + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if strings.Contains(r.URL.Query().Get("query"), "container_oom_kills_total") { + w.WriteHeader(http.StatusInternalServerError) + return + } + _, _ = w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[]}}`)) + })) + defer srv.Close() + + prom := prometheus.New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + s := New(prom, "") + ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) + defer cancel() + _, err := s.Build(ctx, FilterParams{}) + if err != nil { + t.Errorf("partial failure should NOT propagate: %v", err) + } +} + +func TestHandlers_Roundtrip(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[]}}`)) + })) + defer srv.Close() + prom := prometheus.New(srv.URL, &http.Client{Timeout: 5 * time.Second}) + hs := Handlers(New(prom, "c1"), "test-account") + for _, want := range []string{"service_map", "service_map_enricher", "traces_dependency_map"} { + if _, ok := hs[want]; !ok { + t.Errorf("handler missing: %s", want) + } + } + + // service_map: UI-shaped {data: [...]} wrapper. + got, err := hs["service_map"](context.Background(), map[string]any{"duration": float64(60)}) + if err != nil { + t.Fatal(err) + } + wrapper, ok := got.(map[string]any) + if !ok { + t.Fatalf("service_map returned %T; want map[string]any with `data` key", got) + } + if _, hasData := wrapper["data"].([]Application); !hasData { + t.Errorf("service_map response missing `data: []Application` shape; got %+v", wrapper) + } + + // service_map_enricher: Finding envelope. + got, err = hs["service_map_enricher"](context.Background(), map[string]any{"duration": float64(60)}) + if err != nil { + t.Fatal(err) + } + env, ok := got.(map[string]any) + if !ok { + t.Fatalf("service_map_enricher returned %T; want Finding envelope", got) + } + findings, ok := env["findings"].([]any) + if !ok || len(findings) == 0 { + t.Errorf("service_map_enricher missing findings[]: %+v", env) + } +} + +func TestHandlers_ParseFilterParams_NestedWorkloadFilter(t *testing.T) { + got := parseFilterParams(map[string]any{ + "workload_filter": map[string]any{ + "workload_name": "frontend", + "workload_namespace": "shop", + }, + "duration": float64(120), + }) + if got.WorkloadName != "frontend" || got.WorkloadNamespace != "shop" || got.Duration != 120 { + t.Errorf("nested filter not extracted: %+v", got) + } +} + +func TestHandlers_NilService(t *testing.T) { + hs := Handlers(nil, "") + if hs != nil { + t.Error("Handlers(nil, ...) should return nil map") + } +} diff --git a/runner/pkg/servicemap/types.go b/runner/pkg/servicemap/types.go new file mode 100644 index 0000000..9d3f897 --- /dev/null +++ b/runner/pkg/servicemap/types.go @@ -0,0 +1,108 @@ +package servicemap + +// Wire types — match the Application/Link/Instance shapes the +// render_service_map step emits, so the api-server consumer can keep +// its existing parser (services/application/trace_service_map_test.go +// validates exactly these field names). + +// Status mirrors the Status int enum. +type Status int + +const ( + StatusUnknown Status = 0 + StatusOK Status = 1 + StatusWarning Status = 2 + StatusFailed Status = 3 +) + +// ApplicationID identifies an application across the topology. The "name" +// is typically the workload name; "kind" is Deployment/StatefulSet/etc. +type ApplicationID struct { + Name string `json:"name"` + Kind string `json:"kind"` + Namespace string `json:"namespace"` +} + +// Instance represents a single Pod in an application's replica set. +type Instance struct { + ID ApplicationID `json:"id"` + IsFailed bool `json:"is_failed"` +} + +// UpstreamLink is one outgoing edge — Application points at the apps it +// CALLS. Id is emitted as a STRING in `namespace:kind:name` shape (the +// dict key from `to_text()`), not an object. The UI parses +// `u.Id.split(':')` directly, and the backend's UpstreamLink also keeps +// `Id` as a string. Emitting the object form here would crash the UI +// with `Id.split is not a function`. +type UpstreamLink struct { + ID string `json:"Id"` + Status Status `json:"Status"` + Stats []string `json:"Stats"` + Weight float64 `json:"Weight"` + Latency float64 `json:"Latency"` + RequestCount float64 `json:"RequestCount"` + FailureCount float64 `json:"FailureCount"` + Protocol string `json:"Protocol"` + BytesSent float64 `json:"BytesSent"` + BytesReceived float64 `json:"BytesReceived"` +} + +// DownstreamLink is one incoming edge — apps that CALL this Application. +// Id is emitted as an ApplicationId OBJECT (`{namespace, kind, name}`) +// here — different from UpstreamLink. The backend's DownstreamLink +// matches this shape. +type DownstreamLink struct { + ID ApplicationID `json:"Id"` + Status Status `json:"Status"` + Stats []string `json:"Stats"` + Weight float64 `json:"Weight"` + Latency float64 `json:"Latency"` + RequestCount float64 `json:"RequestCount"` + FailureCount float64 `json:"FailureCount"` + Protocol string `json:"Protocol"` + BytesSent float64 `json:"BytesSent"` + BytesReceived float64 `json:"BytesReceived"` +} + +// idToText returns the wire-shape string for an UpstreamLink.Id: +// `namespace:kind:name`. +func idToText(id ApplicationID) string { + return id.Namespace + ":" + id.Kind + ":" + id.Name +} + +// Application is the rendered topology node. +type Application struct { + ID ApplicationID `json:"Id"` + Category string `json:"Category"` + Labels map[string]string `json:"Labels"` + Status Status `json:"Status"` + Indicators []any `json:"Indicators"` + Upstreams []UpstreamLink `json:"Upstreams"` + Downstreams []DownstreamLink `json:"Downstreams"` + Instances []Instance `json:"Instances"` + Type []string `json:"Type"` + DesiredInstances int `json:"DesiredInstances"` + FailedInstances int `json:"FailedInstances"` + OOMKills int `json:"OOMKills"` + Restarts int `json:"Restarts"` + CPUThrottlingTime float64 `json:"CPUThrottlingTime"` + VolumeSize float64 `json:"VolumeSize"` + VolumeUsed float64 `json:"VolumeUsed"` + IsHealthy bool `json:"IsHealthy"` + HealthReason string `json:"HealthReason"` +} + +// FilterParams are the action_params accepted by service_map. +// +// workload_name - if set, scopes the query to one workload +// workload_namespace - similar +// r_start_time / r_end_time - RFC3339-like, or empty for "now - duration" +// duration - minutes (default 1440 = 24h) +type FilterParams struct { + WorkloadName string `json:"workload_name"` + WorkloadNamespace string `json:"workload_namespace"` + StartTime string `json:"r_start_time"` + EndTime string `json:"r_end_time"` + Duration int `json:"duration"` +} diff --git a/runner/pkg/servicemap/world.go b/runner/pkg/servicemap/world.go new file mode 100644 index 0000000..6cc7b8d --- /dev/null +++ b/runner/pkg/servicemap/world.go @@ -0,0 +1,115 @@ +package servicemap + +// world is the in-memory state the builder accumulates. We hold only +// what the renderer needs. +type world struct { + // applications keyed by ApplicationID.toText() (kind/namespace/name) + applications map[string]*application + + // pod IP → app key (built from kube_pod_info) + podIPToApp map[string]string + + // service ClusterIP → app key (built from kube_service_info; service IPs + // also alias to the workload they front) + serviceIPToApp map[string]string + + // per-application container stats (latest values) + containerStats map[string]*containerSums + + // edges: srcAppKey → dstAppKey → linkAccum + edges map[string]map[string]*linkAccum +} + +type application struct { + id ApplicationID + labels map[string]string + instances map[string]Instance // keyed by pod name + desired int +} + +type containerSums struct { + oomKills float64 + restarts float64 + cpuThrottlingTime float64 + volumeSize float64 + volumeUsed float64 +} + +type linkAccum struct { + requests float64 + failures float64 + latency float64 + bytesSent float64 + bytesRecv float64 + protocol string + hasRequests bool +} + +func newWorld() *world { + return &world{ + applications: map[string]*application{}, + podIPToApp: map[string]string{}, + serviceIPToApp: map[string]string{}, + containerStats: map[string]*containerSums{}, + edges: map[string]map[string]*linkAccum{}, + } +} + +// appKey is the canonical map key for an application +// (kind/namespace/name). +func appKey(id ApplicationID) string { + return id.Kind + "/" + id.Namespace + "/" + id.Name +} + +// upsertApp returns the application slot for id, creating it if needed. +func (w *world) upsertApp(id ApplicationID) *application { + k := appKey(id) + a, ok := w.applications[k] + if !ok { + a = &application{ + id: id, + labels: map[string]string{}, + instances: map[string]Instance{}, + } + w.applications[k] = a + } + return a +} + +// containerStatsFor returns the per-app stats accumulator. +func (w *world) containerStatsFor(appK string) *containerSums { + s, ok := w.containerStats[appK] + if !ok { + s = &containerSums{} + w.containerStats[appK] = s + } + return s +} + +// addEdge records a connection from src to dst. Subsequent additions for +// the same pair accumulate into the linkAccum. +func (w *world) addEdge(srcK, dstK string) *linkAccum { + dsts, ok := w.edges[srcK] + if !ok { + dsts = map[string]*linkAccum{} + w.edges[srcK] = dsts + } + la, ok := dsts[dstK] + if !ok { + la = &linkAccum{} + dsts[dstK] = la + } + return la +} + +// resolveAppByIP returns the app key (or "") for a connection-IP label. +// Pod IPs win; Service ClusterIPs are tried second. +func (w *world) resolveAppByIP(ip string) string { + if ip == "" { + return "" + } + if k, ok := w.podIPToApp[ip]; ok { + return k + } + return w.serviceIPToApp[ip] +} diff --git a/runner/pkg/svcdiscover/discover.go b/runner/pkg/svcdiscover/discover.go new file mode 100644 index 0000000..60be3df --- /dev/null +++ b/runner/pkg/svcdiscover/discover.go @@ -0,0 +1,160 @@ +// Package svcdiscover finds in-cluster service URLs by label selector. +// +// Resolves Prometheus/AlertManager/Loki URLs at runtime by listing all +// services in the cluster against a list of well-known label selectors +// (kube-prometheus-stack, prometheus-server, prometheus-operator, …) and +// returning the first hit's `http://..svc.:`. +// +// Selectors are intentionally inclusive so a customer with a non-standard +// install (e.g. Thanos in front of Prometheus) is still autodetected. The +// agent's existing env-var path takes precedence — autodiscovery is only used +// when the relevant URL env (PROMETHEUS_URL / LOKI_URL / ALERTMANAGER_URL) is +// blank. +package svcdiscover + +import ( + "context" + "fmt" + "strings" + "sync" + "time" + + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" +) + +// Selectors is the ordered list of label selectors tried for each +// well-known service. We try them in order, returning the first hit. +var ( + // PrometheusSelectors mirrors PrometheusDiscovery.find_prometheus_url + + // find_vm_url. Victoria Metrics selectors are tried + // after the kube-prometheus stack hits so VM-only clusters are still + // auto-detected. + PrometheusSelectors = []string{ + "app=kube-prometheus-stack-prometheus", + "app=prometheus,component=server,release!=kubecost", + "app=prometheus-server", + "app=prometheus-operator-prometheus", + "app=prometheus-msteams", + "app=rancher-monitoring-prometheus", + "app=prometheus-prometheus", + // prometheus-community/prometheus chart >= 25.x uses + // app.kubernetes.io/name=prometheus + component=server labels. + "app.kubernetes.io/name=prometheus,app.kubernetes.io/component=server", + "app.kubernetes.io/component=query,app.kubernetes.io/name=thanos", + "app.kubernetes.io/name=thanos-query", + "app=thanos-query", + "app=thanos-querier", + // Victoria Metrics + "app.kubernetes.io/name=vmsingle", + "app.kubernetes.io/name=victoria-metrics-single", + "app.kubernetes.io/name=vmselect", + "app=vmselect", + } + // AlertManagerSelectors mirrors AlertManagerDiscovery. + AlertManagerSelectors = []string{ + "app=kube-prometheus-stack-alertmanager", + "app=prometheus,component=alertmanager", + "app=prometheus-operator-alertmanager", + "app=alertmanager", + "app=rancher-monitoring-alertmanager", + "app=prometheus-alertmanager", + "operated-alertmanager=true", + "app.kubernetes.io/name=alertmanager", + "app.kubernetes.io/name=vmalertmanager", + } + // LokiSelectors mirrors GrafanaLokiDiscovery. + LokiSelectors = []string{ + "app=loki", + "app.kubernetes.io/instance=loki", + } + // OpencostSelectors mirrors OpenCostDiscovery.find_open_cost_url. + OpencostSelectors = []string{ + "app=opencost", + "app.kubernetes.io/name=opencost", + } +) + +// CacheTTL controls how long autodiscovery results (including misses) are +// cached. 1 hour by default. +const CacheTTL = time.Hour + +// Discoverer finds service URLs by label, caching results. +type Discoverer struct { + cs kubernetes.Interface + clusterDomain string + + mu sync.Mutex + cache map[string]cacheEntry +} + +type cacheEntry struct { + url string + expires time.Time +} + +// New returns a Discoverer that uses the provided clientset. clusterDomain +// is appended after svc. — typically "cluster.local". +func New(cs kubernetes.Interface, clusterDomain string) *Discoverer { + if clusterDomain == "" { + clusterDomain = "cluster.local" + } + return &Discoverer{cs: cs, clusterDomain: clusterDomain, cache: map[string]cacheEntry{}} +} + +// FindFirst tries each selector in order; returns the URL of the first match, +// or "" if none. Negative results are cached too so we don't keep listing +// services on every call. +func (d *Discoverer) FindFirst(ctx context.Context, selectors []string) string { + if d == nil || d.cs == nil { + return "" + } + cacheKey := strings.Join(selectors, "|") + now := time.Now() + + d.mu.Lock() + if e, ok := d.cache[cacheKey]; ok && now.Before(e.expires) { + d.mu.Unlock() + return e.url + } + d.mu.Unlock() + + url := "" + for _, sel := range selectors { + if u := d.findOne(ctx, sel); u != "" { + url = u + break + } + } + + d.mu.Lock() + d.cache[cacheKey] = cacheEntry{url: url, expires: now.Add(CacheTTL)} + d.mu.Unlock() + return url +} + +func (d *Discoverer) findOne(ctx context.Context, selector string) string { + list, err := d.cs.CoreV1().Services("").List(ctx, metav1.ListOptions{LabelSelector: selector}) + if err != nil || len(list.Items) == 0 { + return "" + } + svc := list.Items[0] + if len(svc.Spec.Ports) == 0 { + return "" + } + port := svc.Spec.Ports[0].Port + return fmt.Sprintf("http://%s.%s.svc.%s:%d", svc.Name, svc.Namespace, d.clusterDomain, port) +} + +// Coalesce returns the first non-empty value. Used at startup when wiring +// configured envs against autodiscovered URLs: +// +// cfg.PrometheusURL = svcdiscover.Coalesce(cfg.PrometheusURL, d.FindFirst(ctx, svcdiscover.PrometheusSelectors)) +func Coalesce(values ...string) string { + for _, v := range values { + if strings.TrimSpace(v) != "" { + return v + } + } + return "" +} diff --git a/runner/pkg/svcdiscover/discover_test.go b/runner/pkg/svcdiscover/discover_test.go new file mode 100644 index 0000000..122478f --- /dev/null +++ b/runner/pkg/svcdiscover/discover_test.go @@ -0,0 +1,111 @@ +package svcdiscover + +import ( + "context" + "testing" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes/fake" +) + +// TestFindFirst_FirstMatchingSelectorWins seeds two services that match +// different selectors in PrometheusSelectors. The first selector with a hit +// takes precedence. +func TestFindFirst_FirstMatchingSelectorWins(t *testing.T) { + cs := fake.NewClientset( + // Matches the second selector in PrometheusSelectors. + mkService("prom-server", "monitoring", 9090, map[string]string{"app": "prometheus-server"}), + // Matches the first selector — should win. + mkService("prom-stack", "kps", 9090, map[string]string{"app": "kube-prometheus-stack-prometheus"}), + ) + d := New(cs, "cluster.local") + url := d.FindFirst(context.Background(), PrometheusSelectors) + want := "http://prom-stack.kps.svc.cluster.local:9090" + if url != want { + t.Errorf("got %q; want %q", url, want) + } +} + +func TestFindFirst_NoMatchReturnsEmpty(t *testing.T) { + cs := fake.NewClientset() + d := New(cs, "cluster.local") + if url := d.FindFirst(context.Background(), PrometheusSelectors); url != "" { + t.Errorf("expected empty URL; got %q", url) + } +} + +// TestFindFirst_CachesNegativeResults asserts that a miss isn't re-listed on +// every call — misses are cached for an hour to avoid pummeling the API +// server. We verify by pre-empting the cache and noting the next call should +// return cached miss even if a service is added. +func TestFindFirst_CachesResults(t *testing.T) { + cs := fake.NewClientset() + d := New(cs, "cluster.local") + if u := d.FindFirst(context.Background(), PrometheusSelectors); u != "" { + t.Fatalf("first call should miss: got %q", u) + } + // Add a service AFTER the cache is populated. With a fresh cache, this + // would be discoverable — but we expect the cache to still report empty. + if _, err := cs.CoreV1().Services("default").Create(context.Background(), + mkService("p", "default", 9090, map[string]string{"app": "kube-prometheus-stack-prometheus"}), + metav1.CreateOptions{}); err != nil { + t.Fatal(err) + } + if u := d.FindFirst(context.Background(), PrometheusSelectors); u != "" { + t.Errorf("expected cached miss; got %q", u) + } +} + +func TestNew_DefaultsClusterDomain(t *testing.T) { + cs := fake.NewClientset( + mkService("p", "ns", 9090, map[string]string{"app": "loki"}), + ) + d := New(cs, "") + if u := d.FindFirst(context.Background(), LokiSelectors); u == "" { + t.Fatal("expected URL") + } +} + +func TestCoalesce(t *testing.T) { + if got := Coalesce("", " ", "real", "later"); got != "real" { + t.Errorf("Coalesce = %q", got) + } + if got := Coalesce(""); got != "" { + t.Errorf("Coalesce all-empty = %q; want empty", got) + } +} + +// TestFindFirst_PrometheusCommunityChart covers the prometheus-community/prometheus +// chart >= 25.x, which labels the server svc with app.kubernetes.io/name=prometheus +// and app.kubernetes.io/component=server (no legacy `app=` label). +func TestFindFirst_PrometheusCommunityChart(t *testing.T) { + cs := fake.NewClientset( + mkService("prometheus-server", "prometheus", 80, map[string]string{ + "app.kubernetes.io/name": "prometheus", + "app.kubernetes.io/component": "server", + "app.kubernetes.io/instance": "prometheus", + }), + ) + d := New(cs, "cluster.local") + want := "http://prometheus-server.prometheus.svc.cluster.local:80" + if got := d.FindFirst(context.Background(), PrometheusSelectors); got != want { + t.Errorf("got %q; want %q", got, want) + } +} + +func TestNilDiscovererReturnsEmpty(t *testing.T) { + var d *Discoverer + if u := d.FindFirst(context.Background(), PrometheusSelectors); u != "" { + t.Errorf("nil Discoverer returned %q", u) + } +} + +func mkService(name, namespace string, port int32, labels map[string]string) *corev1.Service { + return &corev1.Service{ + ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: namespace, Labels: labels}, + Spec: corev1.ServiceSpec{ + Ports: []corev1.ServicePort{{Port: port}}, + }, + } +} diff --git a/runner/pkg/tasks/poller.go b/runner/pkg/tasks/poller.go new file mode 100644 index 0000000..380c85b --- /dev/null +++ b/runner/pkg/tasks/poller.go @@ -0,0 +1,260 @@ +// Package tasks polls /v1/k8s/tasks for queued agent jobs (krr_scan, popeye_scan, +// image_scanner, k8s_version_upgrade, helm_chart_upgrade, certificate_scanner, +// trivy_cis_scan, kube_bench_scan, …) and dispatches them through the local +// handler registry, then POSTs the result back to /v1/k8s/tasks/. +// +// Without this loop, no recommendation jobs run for the tenant — api-server's +// CreateRecommendationJob writes rows to the `agent_task` table with status=TODO +// , and the agent never picks +// them up. This is the primary reason the canary saw zero recommendations. +// +// The collector returns: +// +// { "data": [ {"task_id": "...", "payload": {action_name, action_params, ...}, "source": "..."} ], +// "remaining_task_count": } +// +// We drain the queue in a tight loop while remaining_task_count > 0, then +// sleep Period seconds before the next pull (default 120s — TASK_RUNNER_WINDOW +// env var). +package tasks + +import ( + "bytes" + "context" + "encoding/base64" + "encoding/json" + "fmt" + "io" + "log/slog" + "net/http" + "strconv" + "time" +) + +// Dispatcher is the subset of dispatch.Dispatcher we need — kept narrow so +// tests don't need to construct the full thing. +type Dispatcher interface { + HandleTrusted(ctx context.Context, actionName string, params map[string]any, highPriority bool) (any, bool, error) +} + +// Service drains the agent_task queue. One Service per agent process. +type Service struct { + Endpoint string // e.g. https://collector.dev.nudgebee.pollux.in + AuthSecret string // bare base64 same as discovery sink + Period time.Duration + HTTP *http.Client + Logger *slog.Logger + Dispatch Dispatcher +} + +// Run blocks until ctx is done. Polls in a loop with Period spacing. +func (s *Service) Run(ctx context.Context) error { + if s.Endpoint == "" { + s.Logger.Info("task poller disabled — backend endpoint empty") + <-ctx.Done() + return nil + } + if s.HTTP == nil { + s.HTTP = &http.Client{Timeout: 60 * time.Second} + } + if s.Period <= 0 { + s.Period = 120 * time.Second + } + t := time.NewTimer(s.Period) // first tick after Period; agent_task is empty on fresh boot + defer t.Stop() + for { + select { + case <-ctx.Done(): + return nil + case <-t.C: + if err := s.drain(ctx); err != nil && !isContextErr(err) { + s.Logger.Warn("task poller drain failed", "err", err) + } + t.Reset(s.Period) + } + } +} + +// drain pulls all available tasks (looping while remaining_task_count > 0) +// and processes each one. +func (s *Service) drain(ctx context.Context) error { + if s.HTTP == nil { + // Defensive — Run() also initializes this, but tests call drain + // directly. Either path produces the same client. + s.HTTP = &http.Client{Timeout: 60 * time.Second} + } + for { + batch, remaining, err := s.fetch(ctx) + if err != nil { + return err + } + for _, t := range batch { + s.process(ctx, t) + } + if remaining == 0 { + return nil + } + } +} + +// task is the row shape collector returns. `payload` may itself be a JSON +// string (the api-server inserts it as a string into the column) or a map — +// accommodate both. +type task struct { + TaskID string `json:"task_id"` + Payload json.RawMessage `json:"payload"` + Source string `json:"source"` +} + +func (s *Service) fetch(ctx context.Context) ([]task, int, error) { + req, err := http.NewRequestWithContext(ctx, http.MethodGet, s.Endpoint+"/v1/k8s/tasks", nil) + if err != nil { + return nil, 0, err + } + if s.AuthSecret != "" { + req.Header.Set("Authorization", base64.StdEncoding.EncodeToString([]byte(s.AuthSecret))) + } + resp, err := s.HTTP.Do(req) + if err != nil { + return nil, 0, err + } + defer func() { _ = resp.Body.Close() }() + body, err := io.ReadAll(resp.Body) + if err != nil { + return nil, 0, err + } + if resp.StatusCode >= 400 { + return nil, 0, fmt.Errorf("HTTP %d: %s", resp.StatusCode, truncate(string(body), 256)) + } + var envelope struct { + Data []task `json:"data"` + Remaining int `json:"remaining_task_count"` + } + if err := json.Unmarshal(body, &envelope); err != nil { + return nil, 0, fmt.Errorf("decode tasks: %w", err) + } + return envelope.Data, envelope.Remaining, nil +} + +// process unpacks one task's payload to {action_name, action_params}, runs +// it through the trusted dispatcher, and posts the result back. +func (s *Service) process(ctx context.Context, t task) { + payload, err := unpackPayload(t.Payload) + if err != nil { + s.Logger.Warn("task: payload decode failed", "task_id", t.TaskID, "err", err) + s.respond(ctx, t.TaskID, map[string]any{"success": false, "msg": "invalid payload: " + err.Error()}) + return + } + actionName, _ := payload["action_name"].(string) + if actionName == "" { + s.Logger.Warn("task: missing action_name", "task_id", t.TaskID) + s.respond(ctx, t.TaskID, map[string]any{"success": false, "msg": "payload missing action_name"}) + return + } + params, _ := payload["action_params"].(map[string]any) + + start := time.Now() + data, ok, err := s.Dispatch.HandleTrusted(ctx, actionName, params, false) + elapsed := time.Since(start) + + var resp map[string]any + switch { + case !ok: + s.Logger.Warn("task: action not registered", "task_id", t.TaskID, "action_name", actionName) + resp = map[string]any{"success": false, "msg": "action not registered: " + actionName} + case err != nil: + s.Logger.Warn("task: handler error", "task_id", t.TaskID, "action_name", actionName, "err", err) + resp = map[string]any{"success": false, "msg": err.Error()} + default: + // Handlers already return {success, ...} for thin actions; for + // Finding-shape actions they return the full {success, findings,...} + // dict. Accept both — the collector's save_task_status reads + // data["success"] and stores the rest as response JSON. + switch d := data.(type) { + case map[string]any: + resp = d + if _, has := resp["success"]; !has { + resp["success"] = true + } + default: + resp = map[string]any{"success": true, "data": d} + } + } + resp["task_processing_duration"] = int(elapsed.Round(time.Second).Seconds()) + s.respond(ctx, t.TaskID, resp) +} + +// respond posts the task result back to /v1/k8s/tasks/. +func (s *Service) respond(ctx context.Context, taskID string, body map[string]any) { + buf, err := json.Marshal(body) + if err != nil { + s.Logger.Warn("task: marshal response failed", "task_id", taskID, "err", err) + return + } + req, err := http.NewRequestWithContext(ctx, http.MethodPost, s.Endpoint+"/v1/k8s/tasks/"+taskID, bytes.NewReader(buf)) + if err != nil { + s.Logger.Warn("task: build response request failed", "task_id", taskID, "err", err) + return + } + req.Header.Set("Content-Type", "application/json") + if s.AuthSecret != "" { + req.Header.Set("Authorization", base64.StdEncoding.EncodeToString([]byte(s.AuthSecret))) + } + resp, err := s.HTTP.Do(req) + if err != nil { + s.Logger.Warn("task: post response failed", "task_id", taskID, "err", err) + return + } + defer func() { _ = resp.Body.Close() }() + if resp.StatusCode >= 400 { + respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 512)) + s.Logger.Warn("task: post response HTTP error", "task_id", taskID, "status", resp.StatusCode, "body", string(respBody)) + } +} + +// unpackPayload accepts a JSON string OR a JSON object — the api-server +// inserts the payload column as a string for some actions and as an object +// for others (history; see CreateRecommendationJob vs older code paths). +func unpackPayload(raw json.RawMessage) (map[string]any, error) { + if len(raw) == 0 { + return nil, fmt.Errorf("empty payload") + } + // Try object first. + var obj map[string]any + if err := json.Unmarshal(raw, &obj); err == nil { + return obj, nil + } + // Fall back: it's a JSON-encoded string containing a JSON object. + var s string + if err := json.Unmarshal(raw, &s); err != nil { + return nil, err + } + if err := json.Unmarshal([]byte(s), &obj); err != nil { + return nil, fmt.Errorf("payload string is not valid JSON: %w", err) + } + return obj, nil +} + +func isContextErr(err error) bool { + return err == context.Canceled || err == context.DeadlineExceeded +} + +func truncate(s string, n int) string { + if len(s) <= n { + return s + } + return s[:n] + "…" +} + +// ParseTaskWindow reads TASK_RUNNER_WINDOW env (seconds) and returns the +// poll period. Used by main.go. +func ParseTaskWindow(s string) time.Duration { + if s == "" { + return 120 * time.Second + } + n, err := strconv.Atoi(s) + if err != nil || n <= 0 { + return 120 * time.Second + } + return time.Duration(n) * time.Second +} diff --git a/runner/pkg/tasks/poller_test.go b/runner/pkg/tasks/poller_test.go new file mode 100644 index 0000000..68d685f --- /dev/null +++ b/runner/pkg/tasks/poller_test.go @@ -0,0 +1,163 @@ +package tasks + +import ( + "context" + "encoding/json" + "io" + "log/slog" + "net/http" + "net/http/httptest" + "strings" + "sync/atomic" + "testing" + "time" +) + +// fakeDispatch records what gets dispatched and lets tests inject the +// response. ok=false simulates an unregistered action_name. +type fakeDispatch struct { + calls atomic.Int32 + last struct { + actionName string + params map[string]any + } + resp map[string]any + ok bool + err error +} + +func (f *fakeDispatch) HandleTrusted(_ context.Context, actionName string, params map[string]any, _ bool) (any, bool, error) { + f.calls.Add(1) + f.last.actionName = actionName + f.last.params = params + return f.resp, f.ok, f.err +} + +// TestService_DrainsAllAndRespondsPerTask covers the happy path: GET returns +// 2 tasks, agent dispatches each, posts the result back, then GETs again +// (because remaining_task_count was non-zero) and exits when the queue is +// empty. +func TestService_DrainsAllAndRespondsPerTask(t *testing.T) { + var pulls atomic.Int32 + posts := map[string]map[string]any{} + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + switch { + case r.Method == http.MethodGet && r.URL.Path == "/v1/k8s/tasks": + pulls.Add(1) + // First call returns 2 tasks + remaining=1 to force a re-pull. + // Second call returns empty. + n := pulls.Load() + if n == 1 { + _, _ = w.Write([]byte(`{"data":[ +{"task_id":"t1","payload":{"action_name":"krr_scan","action_params":{}},"source":"recommendation"}, +{"task_id":"t2","payload":"{\"action_name\":\"image_scanner\",\"action_params\":{\"image_name\":\"nginx\"}}","source":"recommendation"} +],"remaining_task_count":1}`)) + } else { + _, _ = w.Write([]byte(`{"data":[],"remaining_task_count":0}`)) + } + case r.Method == http.MethodPost && strings.HasPrefix(r.URL.Path, "/v1/k8s/tasks/"): + id := strings.TrimPrefix(r.URL.Path, "/v1/k8s/tasks/") + body, _ := io.ReadAll(r.Body) + var v map[string]any + _ = json.Unmarshal(body, &v) + posts[id] = v + w.WriteHeader(200) + default: + w.WriteHeader(404) + } + })) + defer srv.Close() + + d := &fakeDispatch{ok: true, resp: map[string]any{"success": true, "data": "result"}} + s := &Service{ + Endpoint: srv.URL, + AuthSecret: "tok", + Period: time.Hour, + Logger: slog.Default(), + Dispatch: d, + } + if err := s.drain(context.Background()); err != nil { + t.Fatal(err) + } + + if d.calls.Load() != 2 { + t.Errorf("dispatch called %d times; want 2", d.calls.Load()) + } + if len(posts) != 2 { + t.Fatalf("posts back = %d; want 2 (got %+v)", len(posts), posts) + } + if posts["t1"]["success"] != true { + t.Errorf("t1 response = %+v", posts["t1"]) + } + // The second task's payload was a JSON string; make sure unpacking worked + // and the inner action_params reached the dispatcher. + if d.last.actionName != "image_scanner" || d.last.params["image_name"] != "nginx" { + t.Errorf("string-payload unpack wrong: action=%q params=%+v", d.last.actionName, d.last.params) + } +} + +// TestService_UnregisteredActionPostsFailure asserts that a task naming an +// action the agent doesn't have still gets a POST back so the api-server +// task row moves out of TODO state. +func TestService_UnregisteredActionPostsFailure(t *testing.T) { + var seen map[string]any + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.Method == http.MethodGet { + _, _ = w.Write([]byte(`{"data":[{"task_id":"x","payload":{"action_name":"nope"}}],"remaining_task_count":0}`)) + return + } + body, _ := io.ReadAll(r.Body) + _ = json.Unmarshal(body, &seen) + w.WriteHeader(200) + })) + defer srv.Close() + s := &Service{ + Endpoint: srv.URL, + Logger: slog.Default(), + Dispatch: &fakeDispatch{ok: false}, + } + if err := s.drain(context.Background()); err != nil { + t.Fatal(err) + } + if seen["success"] != false { + t.Errorf("expected success=false; got %+v", seen) + } + if !strings.Contains(seen["msg"].(string), "not registered") { + t.Errorf("msg = %q", seen["msg"]) + } +} + +// TestService_AuthHeaderShape locks the bare-base64 auth shape to match the +// discovery sink (collector decodes the whole header verbatim). +func TestService_AuthHeaderShape(t *testing.T) { + var auth string + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + auth = r.Header.Get("Authorization") + _, _ = w.Write([]byte(`{"data":[],"remaining_task_count":0}`)) + })) + defer srv.Close() + s := &Service{Endpoint: srv.URL, AuthSecret: "secret", Logger: slog.Default(), Dispatch: &fakeDispatch{ok: true}} + if err := s.drain(context.Background()); err != nil { + t.Fatal(err) + } + if auth == "" || strings.HasPrefix(auth, "Basic ") { + t.Errorf("Authorization = %q (want bare base64, no Basic prefix)", auth) + } +} + +// TestParseTaskWindow covers env-default behavior so the chart's existing +// TASK_RUNNER_WINDOW value works unchanged. +func TestParseTaskWindow(t *testing.T) { + cases := map[string]time.Duration{ + "": 120 * time.Second, + "30": 30 * time.Second, + "abc": 120 * time.Second, + "-1": 120 * time.Second, + "3600": 3600 * time.Second, + } + for in, want := range cases { + if got := ParseTaskWindow(in); got != want { + t.Errorf("ParseTaskWindow(%q) = %v; want %v", in, got, want) + } + } +} diff --git a/runner/pkg/telemetry/autoscaler.go b/runner/pkg/telemetry/autoscaler.go new file mode 100644 index 0000000..de5a4b9 --- /dev/null +++ b/runner/pkg/telemetry/autoscaler.go @@ -0,0 +1,92 @@ +package telemetry + +import ( + "context" + "log/slog" + "strings" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" +) + +// AutoScalerInfo is the subset of the autoscaler-discovery output that +// the collector + UI consume (autoScalerType / autoScalerVersion / +// autoScalerNamespace + a boolean Enabled). +type AutoScalerInfo struct { + Enabled bool + Type string // "karpenter" | "cluster-autoscaler" | "gke" | "" + Version string + Namespace string +} + +// DetectAutoScaler looks for a Karpenter or cluster-autoscaler deployment +// cluster-wide and falls back to GKE-as-autoscaler when the provider hint +// is GKE (matching legacy KarpenterDiscovery / AutoScalerDiscovery / +// AutoScalerForGKEDiscovery semantics). +// +// One List() per call — cheap enough to run per heartbeat tick. Errors are +// swallowed (returns zero-value) so an RBAC gap on a single resource type +// can't break the rest of telemetry. +func DetectAutoScaler(ctx context.Context, cs kubernetes.Interface, provider string, logger *slog.Logger) AutoScalerInfo { + if logger == nil { + logger = slog.Default() + } + if cs == nil { + return AutoScalerInfo{} + } + deps, err := cs.AppsV1().Deployments(metav1.NamespaceAll).List(ctx, metav1.ListOptions{}) + if err != nil { + logger.Debug("autoscaler discovery: deployment list failed", "err", err) + // Even on RBAC failure we can still surface GKE-as-autoscaler. + if provider == providerGKE { + return AutoScalerInfo{Enabled: true, Type: "gke"} + } + return AutoScalerInfo{} + } + for _, d := range deps.Items { + name := strings.ToLower(d.Name) + switch { + case strings.Contains(name, "karpenter"): + return AutoScalerInfo{ + Enabled: true, + Type: "karpenter", + Version: imageTag(d.Spec.Template.Spec.Containers), + Namespace: d.Namespace, + } + case strings.Contains(name, "cluster-autoscaler"): + return AutoScalerInfo{ + Enabled: true, + Type: "cluster-autoscaler", + Version: imageTag(d.Spec.Template.Spec.Containers), + Namespace: d.Namespace, + } + } + } + // GKE clusters get the managed autoscaler for free even without a + // deployment in the cluster — surface it so the UI doesn't claim + // "no autoscaler" on a managed cluster. + if provider == providerGKE { + return AutoScalerInfo{Enabled: true, Type: "gke"} + } + return AutoScalerInfo{} +} + +// imageTag returns the tag of the first container's image. "ghcr.io/foo:v1.2.3" +// → "v1.2.3"; missing tag → "". +func imageTag(containers []corev1.Container) string { + if len(containers) == 0 { + return "" + } + img := containers[0].Image + i := strings.LastIndex(img, ":") + if i < 0 || i == len(img)-1 { + return "" + } + tag := img[i+1:] + // Guard against `docker.io/foo@sha256:...` — digest is not a version. + if strings.Contains(img, "@sha256:") { + return "" + } + return tag +} diff --git a/runner/pkg/telemetry/autoscaler_test.go b/runner/pkg/telemetry/autoscaler_test.go new file mode 100644 index 0000000..052b70e --- /dev/null +++ b/runner/pkg/telemetry/autoscaler_test.go @@ -0,0 +1,71 @@ +package telemetry + +import ( + "context" + "testing" + + appsv1 "k8s.io/api/apps/v1" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/client-go/kubernetes/fake" +) + +func deployment(namespace, name, image string) *appsv1.Deployment { + return &appsv1.Deployment{ + ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: namespace}, + Spec: appsv1.DeploymentSpec{ + Template: corev1.PodTemplateSpec{ + Spec: corev1.PodSpec{ + Containers: []corev1.Container{{Image: image}}, + }, + }, + }, + } +} + +func TestDetectAutoScaler(t *testing.T) { + cases := []struct { + name string + objs []runtime.Object + provider string + want AutoScalerInfo + }{ + { + name: "Karpenter installed", + objs: []runtime.Object{deployment("karpenter", "karpenter", "ghcr.io/karpenter:v0.32.1")}, + want: AutoScalerInfo{Enabled: true, Type: "karpenter", Version: "v0.32.1", Namespace: "karpenter"}, + }, + { + name: "Cluster Autoscaler installed", + objs: []runtime.Object{deployment("kube-system", "cluster-autoscaler", "k8s.gcr.io/autoscaling/cluster-autoscaler:v1.27.3")}, + want: AutoScalerInfo{Enabled: true, Type: "cluster-autoscaler", Version: "v1.27.3", Namespace: "kube-system"}, + }, + { + name: "GKE provider with no autoscaler deployment", + objs: nil, + provider: providerGKE, + want: AutoScalerInfo{Enabled: true, Type: "gke"}, + }, + { + name: "No autoscaler, non-GKE", + objs: []runtime.Object{deployment("default", "nginx", "nginx:1.25")}, + want: AutoScalerInfo{}, + }, + { + name: "Karpenter image with digest — version empty", + objs: []runtime.Object{deployment("karpenter", "karpenter-controller", + "public.ecr.aws/karpenter/controller@sha256:deadbeef")}, + want: AutoScalerInfo{Enabled: true, Type: "karpenter", Namespace: "karpenter"}, + }, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + cs := fake.NewClientset(tc.objs...) + got := DetectAutoScaler(context.Background(), cs, tc.provider, nil) + if got != tc.want { + t.Errorf("got %+v, want %+v", got, tc.want) + } + }) + } +} diff --git a/runner/pkg/telemetry/cluster_provider.go b/runner/pkg/telemetry/cluster_provider.go new file mode 100644 index 0000000..3bd6963 --- /dev/null +++ b/runner/pkg/telemetry/cluster_provider.go @@ -0,0 +1,265 @@ +package telemetry + +// Cluster-provider detection: six-step provider classification chain +// followed by providerID parsing for region/zone/account/project/resource-group. +// +// Design notes: +// +// - Detection runs once at startup (called from cmd/agent/main.go) and the +// resulting ProviderInfo is cached in telemetry.Service for the agent's +// lifetime. Region/zone/account/project are stable per cluster lifetime, so +// periodic re-detection would just be wasted work + IMDS traffic. +// +// - For AWS the providerID has no account number (just `aws:////`) +// so we hit IMDSv2 once. On Fargate, hop-limit-blocked, or non-AWS clusters +// IMDS is unreachable; the helper returns "" and the backend skips the +// empty value in its UPSERT. +// +// - This file does not import kubernetes/fake — testability comes from the +// `kubernetes.Interface` parameter on DetectProvider plus package-level +// `var`s for the IMDS endpoints. + +import ( + "context" + "encoding/json" + "io" + "log/slog" + "net/http" + "regexp" + "strings" + "time" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" +) + +// ProviderInfo is the cached detection result, populated once at agent startup +// and read on every telemetry tick. Empty fields are treated as "unknown" by +type ProviderInfo struct { + Provider string + AccountNumber string + Region string + Zone string + ProjectID string + ResourceGroup string +} + +// Cluster-provider type names (string-equivalent of the ClusterProviderType enum). +const ( + providerGKE = "GKE" + providerAKS = "AKS" + providerEKS = "EKS" + providerKind = "Kind" + providerMinikube = "Minikube" + providerRancherDesktop = "RancherDesktop" + providerKapsule = "Kapsule" + providerKops = "Kops" + providerDigitalOcean = "DigitalOcean" + providerCivo = "Civo" + providerUnknown = "Unknown" +) + +// hostnameMatch — `kubernetes.io/hostname` label regex → provider. Order +// matters: first match wins, so we use a slice. +var hostnameMatch = []struct { + provider string + pattern *regexp.Regexp +}{ + {providerKind, regexp.MustCompile(`.*kind.*`)}, + {providerRancherDesktop, regexp.MustCompile(`.*rancher-desktop.*`)}, +} + +// nodeLabelMatch — provider-unique label key. Order mirrors Python's NODE_LABELS +// dict-iteration order (insertion order in 3.7+). +var nodeLabelMatch = []struct { + provider string + label string +}{ + {providerMinikube, "minikube.k8s.io/name"}, + {providerDigitalOcean, "doks.digitalocean.com/version"}, + {providerKops, "kops.k8s.io/instancegroup"}, + {providerKapsule, "k8s.scaleway.com/kapsule"}, + {providerCivo, "kubernetes.civo.com/civo-node-size"}, +} + +// IMDSv2 endpoints — vars (not consts) so tests can override. +// +// https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html +var ( + imdsTokenURL = "http://169.254.169.254/latest/api/token" + imdsDocumentURL = "http://169.254.169.254/latest/dynamic/instance-identity/document" + imdsTimeout = 2 * time.Second +) + +var azureProviderIDRE = regexp.MustCompile(`(?i)/subscriptions/([^/]+)/resourceGroups/([^/]+)/`) + +// DetectProvider does a single Nodes().List(), runs the detection chain, +// parses metadata, and (for AWS) hits IMDSv2. Returns zero-value ProviderInfo +// on any error — caller treats empty fields as unknown. +func DetectProvider(ctx context.Context, cs kubernetes.Interface, logger *slog.Logger) ProviderInfo { + if logger == nil { + logger = slog.Default() + } + if cs == nil { + return ProviderInfo{} + } + list, err := cs.CoreV1().Nodes().List(ctx, metav1.ListOptions{}) + if err != nil { + logger.Warn("cluster provider detection: node list failed", "err", err) + return ProviderInfo{} + } + nodes := list.Items + if len(nodes) == 0 { + return ProviderInfo{} + } + info := ProviderInfo{Provider: findClusterProvider(nodes)} + info.Region, info.Zone, info.AccountNumber, info.ProjectID, info.ResourceGroup = parseProviderMetadata(ctx, nodes) + return info +} + +// findClusterProvider runs the 6-step classification chain on the node list. +func findClusterProvider(nodes []corev1.Node) string { + if p := detectProviderFromHostname(nodes); p != providerUnknown { + return p + } + if isInProviderID(nodes, "aks") { + return providerAKS + } + if isInKubeletVersion(nodes, "gke") { + return providerGKE + } + if isInKubeletVersion(nodes, "eks") { + return providerEKS + } + if isInProviderID(nodes, "kind") { + return providerKind + } + return detectProviderFromNodeLabels(nodes) +} + +func detectProviderFromHostname(nodes []corev1.Node) string { + for _, n := range nodes { + host, ok := n.Labels["kubernetes.io/hostname"] + if !ok || host == "" { + continue + } + for _, hm := range hostnameMatch { + if hm.pattern.MatchString(host) { + return hm.provider + } + } + } + return providerUnknown +} + +func detectProviderFromNodeLabels(nodes []corev1.Node) string { + if len(nodes) == 0 { + return providerUnknown + } + for _, lm := range nodeLabelMatch { + if _, ok := nodes[0].Labels[lm.label]; ok { + return lm.provider + } + } + return providerUnknown +} + +// isInProviderID returns true when nodes[0].Spec.ProviderID contains the substring. +// Mirrors `_is_str_in_cluster_provider`. +func isInProviderID(nodes []corev1.Node, sub string) bool { + if len(nodes) == 0 { + return false + } + return strings.Contains(nodes[0].Spec.ProviderID, sub) +} + +// isInKubeletVersion returns true when nodes[0].Status.NodeInfo.KubeletVersion +// contains the substring. Mirrors `_is_detect_cluster_from_kubelet_version`. +func isInKubeletVersion(nodes []corev1.Node, sub string) bool { + if len(nodes) == 0 { + return false + } + return strings.Contains(nodes[0].Status.NodeInfo.KubeletVersion, sub) +} + +// parseProviderMetadata extracts region, zone, account, project, resource-group +// from nodes[0]. Mirrors `_parse_provider_metadata`. Returns empty strings for +// fields that don't apply to the detected cloud. +func parseProviderMetadata(ctx context.Context, nodes []corev1.Node) (region, zone, account, project, rg string) { + if len(nodes) == 0 { + return + } + labels := nodes[0].Labels + region = labels["topology.kubernetes.io/region"] + zone = labels["topology.kubernetes.io/zone"] + + pid := nodes[0].Spec.ProviderID + switch { + case strings.HasPrefix(pid, "aws://"): + account = imdsAccountID(ctx) + case strings.HasPrefix(pid, "gce://"): + // gce://// + parts := strings.Split(strings.TrimPrefix(pid, "gce://"), "/") + if len(parts) >= 3 { + project = parts[0] + account = parts[0] + } + case strings.HasPrefix(pid, "azure://"): + if m := azureProviderIDRE.FindStringSubmatch(pid); len(m) == 3 { + account = m[1] + rg = m[2] + } + } + return +} + +// imdsAccountID hits IMDSv2 to read the EC2 instance identity document and +// returns the accountId. Returns "" on any error (Fargate, hop-limit blocked, +// non-AWS, network policy, etc.) — fail-silent. +func imdsAccountID(ctx context.Context) string { + client := &http.Client{Timeout: imdsTimeout} + + tokenReq, err := http.NewRequestWithContext(ctx, http.MethodPut, imdsTokenURL, nil) + if err != nil { + return "" + } + tokenReq.Header.Set("X-aws-ec2-metadata-token-ttl-seconds", "60") + tokenResp, err := client.Do(tokenReq) + if err != nil { + return "" + } + defer func() { _ = tokenResp.Body.Close() }() + if tokenResp.StatusCode >= 400 { + return "" + } + tokenBytes, err := io.ReadAll(io.LimitReader(tokenResp.Body, 4096)) + if err != nil { + return "" + } + token := strings.TrimSpace(string(tokenBytes)) + if token == "" { + return "" + } + + docReq, err := http.NewRequestWithContext(ctx, http.MethodGet, imdsDocumentURL, nil) + if err != nil { + return "" + } + docReq.Header.Set("X-aws-ec2-metadata-token", token) + docResp, err := client.Do(docReq) + if err != nil { + return "" + } + defer func() { _ = docResp.Body.Close() }() + if docResp.StatusCode >= 400 { + return "" + } + var doc struct { + AccountID string `json:"accountId"` + } + if err := json.NewDecoder(io.LimitReader(docResp.Body, 64<<10)).Decode(&doc); err != nil { + return "" + } + return doc.AccountID +} diff --git a/runner/pkg/telemetry/cluster_provider_test.go b/runner/pkg/telemetry/cluster_provider_test.go new file mode 100644 index 0000000..e6e324f --- /dev/null +++ b/runner/pkg/telemetry/cluster_provider_test.go @@ -0,0 +1,326 @@ +package telemetry + +import ( + "context" + "errors" + "net/http" + "net/http/httptest" + "strings" + "testing" + + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/client-go/kubernetes/fake" + clienttesting "k8s.io/client-go/testing" +) + +// node is a tiny builder for corev1.Node used across the table. +func node(name, providerID, kubeletVersion string, labels map[string]string) corev1.Node { + return corev1.Node{ + ObjectMeta: metav1.ObjectMeta{Name: name, Labels: labels}, + Spec: corev1.NodeSpec{ProviderID: providerID}, + Status: corev1.NodeStatus{ + NodeInfo: corev1.NodeSystemInfo{KubeletVersion: kubeletVersion}, + }, + } +} + +// startIMDSMock spins up an httptest server that mimics IMDSv2: PUT /token +// returns the token, GET /document returns an instance-identity-document JSON +// containing accountId. tokenStatus / docStatus override the response codes +// for failure-path tests. +func startIMDSMock(t *testing.T, accountID string, tokenStatus, docStatus int) { + t.Helper() + mux := http.NewServeMux() + mux.HandleFunc("/token", func(w http.ResponseWriter, r *http.Request) { + if r.Method != http.MethodPut { + http.Error(w, "method", http.StatusMethodNotAllowed) + return + } + if tokenStatus != 0 && tokenStatus >= 400 { + http.Error(w, "boom", tokenStatus) + return + } + _, _ = w.Write([]byte("test-token")) + }) + mux.HandleFunc("/document", func(w http.ResponseWriter, r *http.Request) { + if r.Method != http.MethodGet { + http.Error(w, "method", http.StatusMethodNotAllowed) + return + } + if r.Header.Get("X-aws-ec2-metadata-token") == "" { + http.Error(w, "no token", http.StatusUnauthorized) + return + } + if docStatus != 0 && docStatus >= 400 { + http.Error(w, "boom", docStatus) + return + } + w.Header().Set("Content-Type", "application/json") + _, _ = w.Write([]byte(`{"accountId":"` + accountID + `","region":"us-east-1"}`)) + }) + srv := httptest.NewServer(mux) + + origToken, origDoc := imdsTokenURL, imdsDocumentURL + imdsTokenURL = srv.URL + "/token" + imdsDocumentURL = srv.URL + "/document" + t.Cleanup(func() { + srv.Close() + imdsTokenURL = origToken + imdsDocumentURL = origDoc + }) +} + +func TestDetectProvider(t *testing.T) { + type imdsCfg struct { + account string + tokenStatus int // 0 → success + docStatus int // 0 → success + } + + cases := []struct { + name string + nodes []corev1.Node + imds *imdsCfg // non-nil → start mock + want ProviderInfo + }{ + { + name: "EKS with IMDS", + nodes: []corev1.Node{node("ip-10-0-1-2", "aws:///us-east-1a/i-abc", + "v1.28.2-eks-abc1234", map[string]string{ + "topology.kubernetes.io/region": "us-east-1", + "topology.kubernetes.io/zone": "us-east-1a", + })}, + imds: &imdsCfg{account: "123456789012"}, + want: ProviderInfo{ + Provider: providerEKS, AccountNumber: "123456789012", + Region: "us-east-1", Zone: "us-east-1a", + }, + }, + { + name: "EKS without IMDS (Fargate / hop-limit)", + nodes: []corev1.Node{node("ip-10-0-1-2", "aws:///us-east-1a/i-abc", + "v1.28.2-eks-abc1234", map[string]string{ + "topology.kubernetes.io/region": "us-east-1", + "topology.kubernetes.io/zone": "us-east-1a", + })}, + imds: &imdsCfg{tokenStatus: http.StatusUnauthorized}, + want: ProviderInfo{ + Provider: providerEKS, AccountNumber: "", + Region: "us-east-1", Zone: "us-east-1a", + }, + }, + { + name: "GKE", + nodes: []corev1.Node{node("gke-default-pool-1", "gce://my-project/us-central1-a/instance-1", + "v1.27.3-gke.100", map[string]string{ + "topology.kubernetes.io/region": "us-central1", + "topology.kubernetes.io/zone": "us-central1-a", + })}, + want: ProviderInfo{ + Provider: providerGKE, AccountNumber: "my-project", ProjectID: "my-project", + Region: "us-central1", Zone: "us-central1-a", + }, + }, + { + name: "AKS", + nodes: []corev1.Node{node("aks-nodepool-1", + "azure:///subscriptions/SUB-123/resourceGroups/MC_rg/providers/Microsoft.Compute/virtualMachineScaleSets/aks-vmss-1/virtualMachines/0", + "v1.27.3", map[string]string{ + "topology.kubernetes.io/region": "westeurope", + "topology.kubernetes.io/zone": "westeurope-1", + })}, + want: ProviderInfo{ + Provider: providerAKS, AccountNumber: "SUB-123", ResourceGroup: "MC_rg", + Region: "westeurope", Zone: "westeurope-1", + }, + }, + { + name: "Kind via hostname", + nodes: []corev1.Node{node("kind-control-plane", "", "v1.27.0", map[string]string{ + "kubernetes.io/hostname": "kind-control-plane", + })}, + want: ProviderInfo{Provider: providerKind}, + }, + { + name: "RancherDesktop via hostname", + nodes: []corev1.Node{node("lima", "", "v1.27.0", map[string]string{ + "kubernetes.io/hostname": "lima-rancher-desktop", + })}, + want: ProviderInfo{Provider: providerRancherDesktop}, + }, + { + name: "Minikube via label", + nodes: []corev1.Node{node("minikube", "", "v1.27.0", map[string]string{ + "minikube.k8s.io/name": "minikube", + })}, + want: ProviderInfo{Provider: providerMinikube}, + }, + { + name: "Kops via label", + nodes: []corev1.Node{node("ip-10-0-0-1", "", "v1.27.0", map[string]string{ + "kops.k8s.io/instancegroup": "nodes", + })}, + want: ProviderInfo{Provider: providerKops}, + }, + { + name: "DigitalOcean via label", + nodes: []corev1.Node{node("do-node-1", "", "v1.27.0", map[string]string{ + "doks.digitalocean.com/version": "1.27.0", + })}, + want: ProviderInfo{Provider: providerDigitalOcean}, + }, + { + name: "Kapsule via label", + nodes: []corev1.Node{node("scw-node-1", "", "v1.27.0", map[string]string{ + "k8s.scaleway.com/kapsule": "1", + })}, + want: ProviderInfo{Provider: providerKapsule}, + }, + { + name: "Civo via label", + nodes: []corev1.Node{node("civo-node-1", "", "v1.27.0", map[string]string{ + "kubernetes.civo.com/civo-node-size": "g3.k3s.small", + })}, + want: ProviderInfo{Provider: providerCivo}, + }, + { + name: "Bare-metal — no providerID, no labels", + nodes: []corev1.Node{node("bare", "", "v1.27.0", nil)}, + want: ProviderInfo{Provider: providerUnknown}, + }, + { + name: "No nodes", + nodes: nil, + want: ProviderInfo{}, + }, + { + // Check order: AKS (substring "aks") runs before kind + // (substring "kind"), so a providerID containing both + // resolves to AKS. + name: "AKS-providerID containing 'kind' resolves to AKS", + nodes: []corev1.Node{node("aks-kind-1", + "azure:///subscriptions/S/resourceGroups/aks-kindof/providers/...", + "v1.27.0", nil)}, + want: ProviderInfo{Provider: providerAKS, AccountNumber: "S", ResourceGroup: "aks-kindof"}, + }, + } + + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + if tc.imds != nil { + startIMDSMock(t, tc.imds.account, tc.imds.tokenStatus, tc.imds.docStatus) + } + objs := make([]runtime.Object, 0, len(tc.nodes)) + for i := range tc.nodes { + n := tc.nodes[i] + objs = append(objs, &n) + } + cs := fake.NewClientset(objs...) + + got := DetectProvider(context.Background(), cs, nil) + if got != tc.want { + t.Errorf("DetectProvider = %+v\n want = %+v", got, tc.want) + } + }) + } +} + +func TestDetectProvider_NodeListError(t *testing.T) { + cs := fake.NewClientset() + cs.PrependReactor("list", "nodes", func(action clienttesting.Action) (bool, runtime.Object, error) { + return true, nil, errors.New("forbidden") + }) + + got := DetectProvider(context.Background(), cs, nil) + if got != (ProviderInfo{}) { + t.Errorf("expected zero-value ProviderInfo on list error, got %+v", got) + } +} + +func TestDetectProvider_NilClientset(t *testing.T) { + got := DetectProvider(context.Background(), nil, nil) + if got != (ProviderInfo{}) { + t.Errorf("expected zero-value ProviderInfo on nil clientset, got %+v", got) + } +} + +// TestIMDSAccountID_FailureModes covers the explicit fail-silent paths. +func TestIMDSAccountID_FailureModes(t *testing.T) { + t.Run("token endpoint 5xx", func(t *testing.T) { + startIMDSMock(t, "", http.StatusInternalServerError, 0) + if got := imdsAccountID(context.Background()); got != "" { + t.Errorf("expected empty on token 500, got %q", got) + } + }) + + t.Run("document endpoint 5xx", func(t *testing.T) { + startIMDSMock(t, "", 0, http.StatusInternalServerError) + if got := imdsAccountID(context.Background()); got != "" { + t.Errorf("expected empty on document 500, got %q", got) + } + }) + + t.Run("unreachable host", func(t *testing.T) { + origToken, origDoc := imdsTokenURL, imdsDocumentURL + // 127.0.0.1:1 — connect refuses immediately, well under the 2s timeout. + imdsTokenURL = "http://127.0.0.1:1/token" + imdsDocumentURL = "http://127.0.0.1:1/document" + t.Cleanup(func() { + imdsTokenURL = origToken + imdsDocumentURL = origDoc + }) + if got := imdsAccountID(context.Background()); got != "" { + t.Errorf("expected empty on unreachable host, got %q", got) + } + }) + + t.Run("malformed JSON", func(t *testing.T) { + mux := http.NewServeMux() + mux.HandleFunc("/token", func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte("token-xyz")) + }) + mux.HandleFunc("/document", func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte("not json")) + }) + srv := httptest.NewServer(mux) + t.Cleanup(srv.Close) + origToken, origDoc := imdsTokenURL, imdsDocumentURL + imdsTokenURL = srv.URL + "/token" + imdsDocumentURL = srv.URL + "/document" + t.Cleanup(func() { + imdsTokenURL = origToken + imdsDocumentURL = origDoc + }) + if got := imdsAccountID(context.Background()); got != "" { + t.Errorf("expected empty on malformed json, got %q", got) + } + }) + + t.Run("happy path strips whitespace token", func(t *testing.T) { + mux := http.NewServeMux() + mux.HandleFunc("/token", func(w http.ResponseWriter, _ *http.Request) { + _, _ = w.Write([]byte(" token-xyz\n")) + }) + mux.HandleFunc("/document", func(w http.ResponseWriter, r *http.Request) { + if got := r.Header.Get("X-aws-ec2-metadata-token"); strings.ContainsAny(got, " \n") || got != "token-xyz" { + http.Error(w, "bad token: "+got, http.StatusBadRequest) + return + } + _, _ = w.Write([]byte(`{"accountId":"42"}`)) + }) + srv := httptest.NewServer(mux) + t.Cleanup(srv.Close) + origToken, origDoc := imdsTokenURL, imdsDocumentURL + imdsTokenURL = srv.URL + "/token" + imdsDocumentURL = srv.URL + "/document" + t.Cleanup(func() { + imdsTokenURL = origToken + imdsDocumentURL = origDoc + }) + if got := imdsAccountID(context.Background()); got != "42" { + t.Errorf("imdsAccountID = %q; want 42", got) + } + }) +} diff --git a/runner/pkg/telemetry/prom_flags.go b/runner/pkg/telemetry/prom_flags.go new file mode 100644 index 0000000..a373a6b --- /dev/null +++ b/runner/pkg/telemetry/prom_flags.go @@ -0,0 +1,44 @@ +package telemetry + +import ( + "context" + "encoding/json" + "log/slog" + + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +// PrometheusFlagsResponse is the subset of `/api/v1/status/flags` we care +// about. Prometheus returns `{status, data: {: , ...}}`; +// we only read `storage.tsdb.retention.time` (Prom 2.x) and `retentionTime` +// (some compat backends expose the legacy name). +type prometheusFlagsResponse struct { + Status string `json:"status"` + Data map[string]string `json:"data"` +} + +// PrometheusRetention queries /api/v1/status/flags and returns the +// `storage.tsdb.retention.time` value. Empty string on any error. +// VictoriaMetrics' vmsingle returns 404 for this endpoint — caller must +// tolerate the empty return. +func PrometheusRetention(ctx context.Context, c *prometheus.Client, logger *slog.Logger) string { + if c == nil || c.BaseURL == "" { + return "" + } + raw, err := c.Flags(ctx) + if err != nil { + logger.Debug("prometheus flags probe failed", "err", err) + return "" + } + var resp prometheusFlagsResponse + if err := json.Unmarshal(raw, &resp); err != nil { + return "" + } + if v := resp.Data["storage.tsdb.retention.time"]; v != "" { + return v + } + if v := resp.Data["retentionTime"]; v != "" { + return v + } + return "" +} diff --git a/runner/pkg/telemetry/prom_flags_test.go b/runner/pkg/telemetry/prom_flags_test.go new file mode 100644 index 0000000..a3017a6 --- /dev/null +++ b/runner/pkg/telemetry/prom_flags_test.go @@ -0,0 +1,69 @@ +package telemetry + +import ( + "context" + "log/slog" + "net/http" + "net/http/httptest" + "testing" + + "github.com/nudgebee/nudgebee-agent/pkg/observability/prometheus" +) + +func TestPrometheusRetention(t *testing.T) { + cases := []struct { + name string + body string + code int + want string + }{ + { + name: "modern flag name", + body: `{"status":"success","data":{"storage.tsdb.retention.time":"15d"}}`, + code: 200, + want: "15d", + }, + { + name: "legacy retentionTime fallback", + body: `{"status":"success","data":{"retentionTime":"10d"}}`, + code: 200, + want: "10d", + }, + { + name: "endpoint missing (vmsingle)", + code: 404, + want: "", + }, + { + name: "malformed body", + body: `not json`, + code: 200, + want: "", + }, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/api/v1/status/flags" { + http.NotFound(w, r) + return + } + if tc.code != 200 { + w.WriteHeader(tc.code) + return + } + _, _ = w.Write([]byte(tc.body)) + })) + defer srv.Close() + c := prometheus.New(srv.URL, nil) + if got := PrometheusRetention(context.Background(), c, slog.Default()); got != tc.want { + t.Errorf("got %q, want %q", got, tc.want) + } + }) + } + + // Nil client → empty without panic. + if got := PrometheusRetention(context.Background(), nil, slog.Default()); got != "" { + t.Errorf("nil client should return empty, got %q", got) + } +} diff --git a/runner/pkg/telemetry/service.go b/runner/pkg/telemetry/service.go new file mode 100644 index 0000000..8e36cdb --- /dev/null +++ b/runner/pkg/telemetry/service.go @@ -0,0 +1,435 @@ +// Package telemetry posts a periodic ClusterStatus snapshot to the backend so +// the UI can show "Prometheus / AlertManager / Loki / OpenCost / Traces / +// NodeAgent connected". +// +// The collector reads a handful of fields directly out of `activity_stats` +// : prometheusUrl, prometheusConnection, logsConnection, +// logsConnectionProvider, traceProvider, tracesEnabled) and stores the rest +// of the dict as `connection_status` JSON in the `agent` table — that's what +// the UI reads to render the per-datasource Connected/Disconnected pills. +// +// Inputs that need K8s/Prometheus access (NodeAgentCount via PromQL, +// LogsProviderStatus via Loki/Signoz health, OpencostStatus probe URL) are +// computed by the caller and passed in via Datasources, so this package stays +// dependency-free and unit-testable. +package telemetry + +import ( + "bytes" + "context" + "encoding/base64" + "encoding/json" + "fmt" + "io" + "log/slog" + "net/http" + "strings" + "time" +) + +// ActivityStats is the activity-stats payload. Pydantic on the legacy side +// emits camelCase wire keys for all fields except the snake_case ones +// (`schedule_jobs`, `log_provider_config`); we match exactly so the +// collector + UI parsers see what they expect. +// +// `Optional[T]` fields are emitted as null when unset — Go's `omitempty` +// mostly produces the same output (skipping vs null is a difference the +// collector tolerates because every read uses `.get()` with a default). +// We keep `omitempty` on the strings/maps and explicit emit on +// numerics/bools so a `false`/`0` is always present. +type ActivityStats struct { + AlertManagerConnection bool `json:"alertManagerConnection"` + PrometheusConnection bool `json:"prometheusConnection"` + PrometheusRetentionTime string `json:"prometheusRetentionTime,omitempty"` + TracesEnabled bool `json:"tracesEnabled"` + LogsConnectionProvider string `json:"logsConnectionProvider,omitempty"` + LogsConnection bool `json:"logsConnection"` + NodeAgentConnection bool `json:"nodeAgentConnection"` + NodeAgentCount int `json:"nodeAgentCount"` + OpencostConnection bool `json:"opencostConnection"` + GrafanaEnabled bool `json:"grafanaEnabled"` + Errors []string `json:"errors"` + InstallationNamespace string `json:"installationNamespace,omitempty"` + LogProviderConfig map[string]any `json:"log_provider_config,omitempty"` + LogProviderURL string `json:"logProviderUrl,omitempty"` + PrometheusURL string `json:"prometheusUrl,omitempty"` + PrometheusAdditionalLabels map[string]string `json:"prometheusAdditionalLabels,omitempty"` + AlertManagerURL string `json:"alertmanagerUrl,omitempty"` + OpencostURL string `json:"opencostUrl,omitempty"` + TracesURL string `json:"tracesUrl,omitempty"` + AutoScalerVersion string `json:"autoScalerVersion,omitempty"` + AutoScalerEnabled bool `json:"autoScalerEnabled"` + AutoScalerNamespace string `json:"autoScalerNamespace,omitempty"` + AutoScalerType string `json:"autoScalerType,omitempty"` + AgentURL string `json:"agentUrl,omitempty"` + AgentWSEnabled bool `json:"agentWSEnabled"` + HealthCheckDuration float64 `json:"healthCheckDuration,omitempty"` + TraceProvider string `json:"traceProvider,omitempty"` + TraceProviderConfig map[string]any `json:"traceProviderConfig,omitempty"` +} + +// ClusterStatus is the wire payload posted to /v1/k8s/telemetry. +type ClusterStatus struct { + AccountID string `json:"account_id,omitempty"` + ClusterID string `json:"cluster_id,omitempty"` + Version string `json:"version"` + LastAlertAt string `json:"last_alert_at,omitempty"` + LightActions []string `json:"light_actions"` + Stats ClusterStats `json:"stats"` + ActivityStat ActivityStats `json:"activity_stats"` + Playbooks []any `json:"playbooks"` + SchedJobs []any `json:"schedule_jobs,omitempty"` +} + +// ClusterStats is the cluster-stats payload. `the backend` reads +// `provider` and `k8s_version`; the six provider_* fields + `cluster_name` +// are consumed by the cloud_account_attrs auto-populate path. +// +// The provider_* + cluster_name fields intentionally omit `omitempty` — Python +// declares them as `Optional[str] = ""` (Pydantic v1 default), which always +// emits the empty string. The backend's UPSERT skips empty values either way, +// but matching the Python wire shape exactly keeps cross-language diffs tight. +type ClusterStats struct { + Provider string `json:"provider"` + K8sVersion string `json:"k8s_version,omitempty"` + ClusterName string `json:"cluster_name"` + ProviderAccountNumber string `json:"provider_account_number"` + ProviderRegion string `json:"provider_region"` + ProviderZone string `json:"provider_zone"` + ProviderProjectID string `json:"provider_project_id"` + ProviderResourceGroup string `json:"provider_resource_group"` +} + +// Datasources is the snapshot the caller assembles before each tick. Fields +// map 1:1 to the PrometheusHealthStatus inputs + the trace-helper env +// vars so probe() can mirror the legacy logic without reaching into env +// or running its own queries. +type Datasources struct { + // URLs the agent has discovered (env or autodiscovery). + PrometheusURL string + AlertManagerURL string + LokiURL string // (informational; logs provider URL is LogsProviderURL below) + OpencostURL string + + // Logs provider — caller picks based on env (ELASTICSEARCH_ENABLED → + // SIGNOZ_ENABLED → loki) and probes health. + LogsProvider string // "ES" | "signoz" | "loki" | "" + LogsProviderURL string + LogsProviderStatus bool + LogProviderConfig map[string]any + + // Prometheus retention from `flags.retentionTime` (utils.get_prometheus_flags). + PrometheusRetentionTime string + PrometheusAdditionalLabels map[string]string + + // Trace inputs — exactly the ones the get_trace_* helpers consult. + TraceTable string // TRACE_TABLE + JaegerEnabled bool // JAEGER_ENABLED + JaegerQueryURL string // JAEGER_QUERY_URL + ChronosphereTracesEnabled bool // CHRONOSPHERE_TRACES_ENABLED + ChronosphereTracesURL string // CHRONOSPHERE_TRACES_URL + // ClickHouseStatus is the `clickhouse_status` flag — used only as the + // fallback for tracesEnabled when no other provider matches. + ClickHouseStatus bool + + // Node-agent: count of `up{job=~"...nudgebee(-.*)?-node-agent"}` from + // Prometheus, computed by the caller. + NodeAgentCount int + + // Auto-scaler info from KarpenterDiscovery / AutoScalerDiscovery / + // AutoScalerForGKEDiscovery. + AutoScalerEnabled bool + AutoScalerType string + AutoScalerVersion string + AutoScalerNamespace string + + // Grafana/Opencost connection — caller may probe these out-of-band; if + // caller leaves them at the default we fall back to in-package HTTP + // probes against the URL fields above. + GrafanaEnabled bool + + // AgentURL is published to the UI as the cluster's "agent" address so + // pop-out actions know where to call. Defaults to AGENT_HTTP_URL env. + AgentURL string +} + +// Service is the periodic poster. +type Service struct { + Endpoint string // e.g. https://collector.dev.nudgebee.pollux.in + AuthSecret string + AccountID string + ClusterName string + AgentVersion string + Namespace string + Period time.Duration + HTTP *http.Client + Logger *slog.Logger + + // Mutable input the agent updates as it learns about its environment. + Datasources func() Datasources + // LightActions is the same set the dispatcher uses for light-action auth; + // the UI shows it as the agent's action surface. + LightActions func() []string + + // Provider is the cluster-provider snapshot, computed once at agent + // startup (DetectProvider) and passed in by main.go. Stable for the + // process lifetime; we don't re-detect per tick. Zero-value is fine — + // empty fields get skipped by the backend's UPSERT. + Provider ProviderInfo + + // K8sVersion is the kubernetes server version (`v1.33.10-gke.1234` + // etc.) fetched once at startup via Discovery().ServerVersion(). The + // backend stores it on `agent.k8s_version`; the UI's Agent Health + // card renders it as "K8s(Provider/Version)". Empty string is + // tolerated (UI shows `GKE /`). + K8sVersion string +} + +// Run blocks until ctx is done. Posts immediately on start so the UI flips +// Connected within one tick of agent boot, then every Period after. +func (s *Service) Run(ctx context.Context) error { + if s.Endpoint == "" { + s.Logger.Info("telemetry disabled — backend endpoint empty") + <-ctx.Done() + return nil + } + if s.HTTP == nil { + s.HTTP = &http.Client{Timeout: 30 * time.Second} + } + if s.Period <= 0 { + s.Period = 60 * time.Second + } + t := time.NewTimer(0) + defer t.Stop() + for { + select { + case <-ctx.Done(): + return nil + case <-t.C: + if err := s.postOnce(ctx); err != nil { + s.Logger.Warn("telemetry post failed", "err", err) + } + t.Reset(s.Period) + } + } +} + +func (s *Service) postOnce(ctx context.Context) error { + if s.HTTP == nil { + // Defensive — Run() also initializes this, but tests call postOnce + // directly, and either path produces the same client. + s.HTTP = &http.Client{Timeout: 30 * time.Second} + } + start := time.Now() + ds := Datasources{} + if s.Datasources != nil { + ds = s.Datasources() + } + stats := s.probe(ctx, ds) + stats.HealthCheckDuration = time.Since(start).Seconds() + stats.InstallationNamespace = s.Namespace + stats.AgentWSEnabled = true + stats.Errors = []string{} // explicit empty slice — Pydantic deserializer rejects null + + light := []string{} + if s.LightActions != nil { + light = s.LightActions() + } + body := ClusterStatus{ + ClusterID: s.ClusterName, + Version: s.AgentVersion, + LightActions: light, + Stats: ClusterStats{ + Provider: s.Provider.Provider, + K8sVersion: s.K8sVersion, + ClusterName: s.ClusterName, + ProviderAccountNumber: s.Provider.AccountNumber, + ProviderRegion: s.Provider.Region, + ProviderZone: s.Provider.Zone, + ProviderProjectID: s.Provider.ProjectID, + ProviderResourceGroup: s.Provider.ResourceGroup, + }, + ActivityStat: stats, + Playbooks: []any{}, + } + buf, err := json.Marshal(body) + if err != nil { + return fmt.Errorf("marshal: %w", err) + } + req, err := http.NewRequestWithContext(ctx, http.MethodPost, s.Endpoint+"/v1/k8s/telemetry", bytes.NewReader(buf)) + if err != nil { + return err + } + req.Header.Set("Content-Type", "application/json") + if s.AuthSecret != "" { + // Bare base64, no "Basic " prefix — same auth shape the collector + // expects on /v1/k8s/discovery. + req.Header.Set("Authorization", base64.StdEncoding.EncodeToString([]byte(s.AuthSecret))) + } + if s.AccountID != "" { + req.Header.Set("X-NB-Account-Id", s.AccountID) + } + if s.ClusterName != "" { + req.Header.Set("X-NB-Cluster", s.ClusterName) + } + resp, err := s.HTTP.Do(req) + if err != nil { + return err + } + defer func() { _ = resp.Body.Close() }() + if resp.StatusCode >= 400 { + respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 1024)) + return fmt.Errorf("HTTP %d: %s", resp.StatusCode, string(respBody)) + } + s.Logger.Debug("telemetry posted", + "prom", stats.PrometheusConnection, + "logs", stats.LogsConnection, + "alertmanager", stats.AlertManagerConnection, + "opencost", stats.OpencostConnection, + "node_agent", stats.NodeAgentCount, + "trace_provider", stats.TraceProvider, + ) + return nil +} + +// probe assembles ActivityStats from Datasources by HTTP-probing the simple +// healthy endpoints and applying the get_trace_* helpers verbatim. +// +// Probes implemented in-package: +// +// Prometheus /-/healthy (utils.get_prometheus_connect.check_prometheus_connection) +// AlertManager /-/healthy (silence_utils.get_alertmanager_silences_connection) +// OpenCost /healthz +// +// Inputs the caller pre-computes (see Datasources): +// +// NodeAgentCount — Prometheus query, mirrors lines 246-264 +// LogsProviderStatus — loki/es/signoz health, mirrors lines 204-242 +// GrafanaEnabled — grafana_client.health(), mirrors lines 284-293 +// ClickHouseStatus — db.health(), mirrors lines 297-305 +// AutoScaler* — Karpenter/CA/GKE detection, mirrors lines 309-350 +func (s *Service) probe(ctx context.Context, ds Datasources) ActivityStats { + out := ActivityStats{ + PrometheusURL: ds.PrometheusURL, + PrometheusRetentionTime: ds.PrometheusRetentionTime, + PrometheusAdditionalLabels: ds.PrometheusAdditionalLabels, + AlertManagerURL: ds.AlertManagerURL, + LogProviderURL: ds.LogsProviderURL, + LogProviderConfig: ds.LogProviderConfig, + LogsConnectionProvider: ds.LogsProvider, + LogsConnection: ds.LogsProviderStatus, + NodeAgentCount: ds.NodeAgentCount, + NodeAgentConnection: ds.NodeAgentCount > 0, // line 254: count > 0 + OpencostURL: ds.OpencostURL, + GrafanaEnabled: ds.GrafanaEnabled, + AutoScalerEnabled: ds.AutoScalerEnabled, + AutoScalerType: ds.AutoScalerType, + AutoScalerVersion: ds.AutoScalerVersion, + AutoScalerNamespace: ds.AutoScalerNamespace, + AgentURL: ds.AgentURL, + } + + // Prometheus + AlertManager: HTTP /-/healthy. A fuller connection + // check with prometrix is possible; we rely on /-/healthy because + // it's the same shape kube-prometheus-stack ships, and a working + // /-/healthy implies the rest. + if ds.PrometheusURL != "" { + out.PrometheusConnection = httpHealth(ctx, s.HTTP, ds.PrometheusURL+"/-/healthy") + } + if ds.AlertManagerURL != "" { + out.AlertManagerConnection = httpHealth(ctx, s.HTTP, ds.AlertManagerURL+"/-/healthy") + } + // OpenCost: only probe if a URL is set. + // where missing URL → opencost=False, no request. + if ds.OpencostURL != "" { + out.OpencostConnection = httpHealth(ctx, s.HTTP, ds.OpencostURL+"/healthz") + } + + // Trace status / provider / URL — verbatim port of the backend. + out.TracesEnabled = traceStatus(ds) + out.TraceProvider = traceProvider(ds) + out.TracesURL = traceURL(ds) + // traceProviderConfig: the legacy code queries ClickHouse for the + // otel_traces materialized-column flag. The agent doesn't run a + // local ClickHouse anymore; the backend computes this. Emit an + // empty dict so the field shape matches. + out.TraceProviderConfig = map[string]any{"hasMaterializedColumn": false} + + return out +} + +// traceStatus mirrors get_trace_status. +func traceStatus(ds Datasources) bool { + if ds.TraceTable != "" { + return true + } + if isChronosphereEnabled(ds) { + return true + } + if isJaegerEnabled(ds) { + return true + } + return ds.ClickHouseStatus +} + +// traceProvider mirrors get_trace_provider. Note +// the default is "otel_clickhouse" even when ClickHouse isn't healthy — UI +// uses (provider, status) to decide what to render. +func traceProvider(ds Datasources) string { + if ds.TraceTable != "" { + return "bigquery" + } + if isChronosphereEnabled(ds) { + return "chronosphere" + } + if isJaegerEnabled(ds) { + return "jaeger" + } + return "otel_clickhouse" +} + +// traceURL mirrors get_trace_url. Note the first +// argument `url_from_prometheus` is what the legacy passes as +// `clickhouse_url` — we don't run a local ClickHouse, so it's always "". +func traceURL(ds Datasources) string { + if ds.TraceTable != "" { + return ds.TraceTable + } + if isJaegerEnabled(ds) { + return ds.JaegerQueryURL + } + return "" +} + +// isChronosphereEnabled mirrors _is_chronosphere_enabled. +func isChronosphereEnabled(ds Datasources) bool { + if !ds.ChronosphereTracesEnabled { + return false + } + if ds.ChronosphereTracesURL != "" { + return true + } + return ds.PrometheusURL != "" && strings.Contains(ds.PrometheusURL, "chronosphere.io") +} + +// isJaegerEnabled mirrors _is_jaeger_enabled. +func isJaegerEnabled(ds Datasources) bool { + return ds.JaegerEnabled && ds.JaegerQueryURL != "" +} + +// httpHealth returns true iff GET returns 2xx within 5s. +func httpHealth(ctx context.Context, c *http.Client, url string) bool { + cctx, cancel := context.WithTimeout(ctx, 5*time.Second) + defer cancel() + req, err := http.NewRequestWithContext(cctx, http.MethodGet, url, nil) + if err != nil { + return false + } + resp, err := c.Do(req) + if err != nil { + return false + } + defer func() { _ = resp.Body.Close() }() + _, _ = io.Copy(io.Discard, io.LimitReader(resp.Body, 1024)) + return resp.StatusCode >= 200 && resp.StatusCode < 300 +} diff --git a/runner/pkg/telemetry/service_test.go b/runner/pkg/telemetry/service_test.go new file mode 100644 index 0000000..f438986 --- /dev/null +++ b/runner/pkg/telemetry/service_test.go @@ -0,0 +1,309 @@ +package telemetry + +import ( + "context" + "encoding/json" + "io" + "log/slog" + "net/http" + "net/http/httptest" + "strings" + "sync/atomic" + "testing" + "time" +) + +// TestService_PostsActivityStatsWithProbedStatus stands up fake datasources +// and verifies the service POSTs the expected wire shape to /v1/k8s/telemetry — +// keys the collector reads plus the URLs the UI +// shows. Confirms: +// - in-package probes (Prometheus /-/healthy, AlertManager /-/healthy) flip +// *Connection bools correctly +// - caller-provided LogsProviderStatus / NodeAgentCount round-trip +// - Authorization header is bare base64 (no "Basic " prefix) +// - URL set + probe down → Connection=false but URL still emitted +// - traceProvider mirrors get_trace_provider() default ("otel_clickhouse") +func TestService_PostsActivityStatsWithProbedStatus(t *testing.T) { + prom := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path == "/-/healthy" { + w.WriteHeader(200) + return + } + w.WriteHeader(404) + })) + defer prom.Close() + // AlertManager URL set but server returns 500 → Connection should be false + // while AlertmanagerUrl still appears in the payload (so the UI can show + // "URL configured but unhealthy"). + am := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + w.WriteHeader(500) + })) + defer am.Close() + + var got struct { + body []byte + auth string + } + collector := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + got.body, _ = io.ReadAll(r.Body) + got.auth = r.Header.Get("Authorization") + w.WriteHeader(200) + })) + defer collector.Close() + + s := &Service{ + Endpoint: collector.URL, + AuthSecret: "tok", + AccountID: "a929c7a3", + ClusterName: "dev", + AgentVersion: "v0", + Period: time.Minute, + Logger: slog.Default(), + Datasources: func() Datasources { + return Datasources{ + PrometheusURL: prom.URL, + AlertManagerURL: am.URL, + LogsProvider: "loki", + LogsProviderURL: "http://loki.svc:3100", + LogsProviderStatus: true, + NodeAgentCount: 3, + } + }, + LightActions: func() []string { return []string{"prometheus_enricher"} }, + } + ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second) + defer cancel() + if err := s.postOnce(ctx); err != nil { + t.Fatal(err) + } + + var posted ClusterStatus + if err := json.Unmarshal(got.body, &posted); err != nil { + t.Fatalf("unmarshal: %v\nbody=%s", err, got.body) + } + if !posted.ActivityStat.PrometheusConnection { + t.Error("prometheusConnection should be true") + } + if !posted.ActivityStat.LogsConnection { + t.Error("logsConnection should be true (caller provided LogsProviderStatus=true)") + } + if posted.ActivityStat.AlertManagerConnection { + t.Error("alertManagerConnection should be false (probe 500)") + } + if posted.ActivityStat.AlertManagerURL != am.URL { + t.Errorf("alertmanagerUrl = %q; want %q (URL emitted even when probe fails)", posted.ActivityStat.AlertManagerURL, am.URL) + } + if posted.ActivityStat.LogsConnectionProvider != "loki" { + t.Errorf("logsConnectionProvider = %q; want loki", posted.ActivityStat.LogsConnectionProvider) + } + if posted.ActivityStat.NodeAgentCount != 3 || !posted.ActivityStat.NodeAgentConnection { + t.Errorf("nodeAgent: count=%d connection=%v; want 3, true", posted.ActivityStat.NodeAgentCount, posted.ActivityStat.NodeAgentConnection) + } + // Default trace provider when nothing else is configured — + // falls through to "otel_clickhouse". + if posted.ActivityStat.TraceProvider != "otel_clickhouse" { + t.Errorf("traceProvider = %q; want otel_clickhouse", posted.ActivityStat.TraceProvider) + } + if !equalStrings(posted.LightActions, []string{"prometheus_enricher"}) { + t.Errorf("light_actions = %v", posted.LightActions) + } + + // Auth must be bare base64 (no "Basic " prefix) — collector decodes the + // whole header verbatim. Same shape as discovery sink. + if got.auth == "" || strings.HasPrefix(got.auth, "Basic ") { + t.Errorf("Authorization = %q (expected bare base64)", got.auth) + } +} + +// TestService_PostsClusterStatsProviderFields verifies the six new +// ClusterStats fields populated from Provider end up on the wire under their +// snake_case JSON keys. Dropping omitempty matters here — even empty +// strings must be emitted under the right keys, matching Pydantic v1's +// `Optional[str] = ""` shape. +func TestService_PostsClusterStatsProviderFields(t *testing.T) { + var captured []byte + collector := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + captured, _ = io.ReadAll(r.Body) + w.WriteHeader(200) + })) + defer collector.Close() + + s := &Service{ + Endpoint: collector.URL, + AuthSecret: "tok", + ClusterName: "prod-cluster", + AgentVersion: "v0", + Period: time.Minute, + Logger: slog.Default(), + Provider: ProviderInfo{ + Provider: "EKS", + AccountNumber: "123456789012", + Region: "us-east-1", + Zone: "us-east-1a", + }, + Datasources: func() Datasources { return Datasources{} }, + LightActions: func() []string { return nil }, + } + ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second) + defer cancel() + if err := s.postOnce(ctx); err != nil { + t.Fatal(err) + } + + // Typed assertion — round-trip through ClusterStats. + var posted ClusterStatus + if err := json.Unmarshal(captured, &posted); err != nil { + t.Fatalf("unmarshal: %v\nbody=%s", err, captured) + } + want := ClusterStats{ + Provider: "EKS", + ClusterName: "prod-cluster", + ProviderAccountNumber: "123456789012", + ProviderRegion: "us-east-1", + ProviderZone: "us-east-1a", + // ProjectID / ResourceGroup intentionally empty — must still serialize. + } + if posted.Stats != want { + t.Errorf("stats = %+v\n want = %+v", posted.Stats, want) + } + + // Raw JSON-key assertion — guards against omitempty regressions and against + // rename of any of the six contract field names. + var raw struct { + Stats map[string]any `json:"stats"` + } + if err := json.Unmarshal(captured, &raw); err != nil { + t.Fatalf("raw unmarshal: %v", err) + } + for _, k := range []string{ + "provider", + "cluster_name", + "provider_account_number", + "provider_region", + "provider_zone", + "provider_project_id", + "provider_resource_group", + } { + if _, ok := raw.Stats[k]; !ok { + t.Errorf("stats missing key %q (omitempty regression?). keys present: %v", k, raw.Stats) + } + } +} + +// TestProbe_TraceProviderSelection covers the get_trace_provider / +// get_trace_status / get_trace_url precedence. +func TestProbe_TraceProviderSelection(t *testing.T) { + cases := []struct { + name string + ds Datasources + provider string + enabled bool + url string + }{ + { + name: "TRACE_TABLE wins", + ds: Datasources{TraceTable: "bq.dataset.traces", JaegerEnabled: true, JaegerQueryURL: "http://jaeger"}, + provider: "bigquery", + enabled: true, + url: "bq.dataset.traces", + }, + { + name: "chronosphere via explicit URL", + ds: Datasources{ChronosphereTracesEnabled: true, ChronosphereTracesURL: "https://traces.example.io"}, + provider: "chronosphere", + enabled: true, + // get_trace_url falls through to "" when neither TRACE_TABLE nor jaeger + url: "", + }, + { + name: "chronosphere inferred from prometheus URL", + ds: Datasources{ChronosphereTracesEnabled: true, PrometheusURL: "https://abc.chronosphere.io/api/prom"}, + provider: "chronosphere", + enabled: true, + }, + { + name: "jaeger when enabled+url", + ds: Datasources{JaegerEnabled: true, JaegerQueryURL: "http://jaeger.svc:16686"}, + provider: "jaeger", + enabled: true, + url: "http://jaeger.svc:16686", + }, + { + name: "default otel_clickhouse with clickhouse down", + ds: Datasources{ClickHouseStatus: false}, + provider: "otel_clickhouse", + enabled: false, + }, + { + name: "default otel_clickhouse with clickhouse up", + ds: Datasources{ClickHouseStatus: true}, + provider: "otel_clickhouse", + enabled: true, + }, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + if got := traceProvider(tc.ds); got != tc.provider { + t.Errorf("traceProvider = %q; want %q", got, tc.provider) + } + if got := traceStatus(tc.ds); got != tc.enabled { + t.Errorf("traceStatus = %v; want %v", got, tc.enabled) + } + if got := traceURL(tc.ds); got != tc.url { + t.Errorf("traceURL = %q; want %q", got, tc.url) + } + }) + } +} + +// TestService_RunStopsOnContextCancel covers the lifecycle path — Run() +// posts immediately, then exits cleanly when ctx is canceled. +func TestService_RunStopsOnContextCancel(t *testing.T) { + var posts atomic.Int32 + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { + posts.Add(1) + w.WriteHeader(200) + })) + defer srv.Close() + + s := &Service{ + Endpoint: srv.URL, + AuthSecret: "x", + AgentVersion: "v0", + Period: time.Hour, // doesn't fire in test window + Logger: slog.Default(), + Datasources: func() Datasources { return Datasources{} }, + LightActions: func() []string { return nil }, + } + ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond) + defer cancel() + if err := s.Run(ctx); err != nil { + t.Fatal(err) + } + if got := posts.Load(); got < 1 { + t.Errorf("expected at least 1 post; got %d", got) + } +} + +// TestService_NoEndpointIsNoop covers the disabled path — no env, agent +// keeps running, no panic. +func TestService_NoEndpointIsNoop(t *testing.T) { + s := &Service{Logger: slog.Default()} + ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond) + defer cancel() + if err := s.Run(ctx); err != nil { + t.Errorf("Run with empty endpoint should be noop: %v", err) + } +} + +func equalStrings(a, b []string) bool { + if len(a) != len(b) { + return false + } + for i := range a { + if a[i] != b[i] { + return false + } + } + return true +} diff --git a/runner/pkg/triggers/diff.go b/runner/pkg/triggers/diff.go new file mode 100644 index 0000000..086dd25 --- /dev/null +++ b/runner/pkg/triggers/diff.go @@ -0,0 +1,336 @@ +package triggers + +import ( + "encoding/json" + "fmt" + "sort" + "strings" + + "sigs.k8s.io/yaml" + + "github.com/nudgebee/nudgebee-agent/pkg/kube" +) + +// DiffEntry is one path-level change between two K8s objects. `Path` is +// dot-separated (e.g. "spec.replicas", "spec.template.spec.containers[0].image"). +// Before/After are the two values; either can be nil for added / removed paths. +type DiffEntry struct { + Path string `json:"path"` + Before any `json:"before,omitempty"` + After any `json:"after,omitempty"` +} + +// SpecDiffOptions controls field filtering in ComputeSpecDiff. Defaults +// mirror the BabysitterConfig: monitor "spec" (and any sub-path), omit +// metadata noise + status churn that updates on every controller +// heartbeat. +type SpecDiffOptions struct { + // FieldsToMonitor is the set of top-level (or dotted) prefixes a + // diff path must match to be reported. A path "matches" when it + // either equals or starts with one of these followed by "." or "[". + FieldsToMonitor []string + + // FieldsToOmit overrides FieldsToMonitor — paths matching any of + // these are dropped even if they also match FieldsToMonitor. + FieldsToOmit []string +} + +// DefaultSpecDiffOptions returns the babysitter defaults — exact parity +// with BabysitterConfig.fields_to_monitor / omitted_fields. +func DefaultSpecDiffOptions() SpecDiffOptions { + return SpecDiffOptions{ + FieldsToMonitor: []string{"spec", "spec.replicas"}, + FieldsToOmit: []string{ + "status", + "metadata.generation", + "metadata.resourceVersion", + "metadata.managedFields", + }, + } +} + +// ComputeSpecDiff walks obj + oldObj recursively and returns the filtered +// path-level diffs. Returns nil when oldObj is nil (no diff possible) or +// when no monitored field changed. +// +// Implementation: marshals both objects to JSON to get deterministic key +// order, then walks the parsed maps. We don't use reflect because both +// inputs are already `map[string]any` from JSON unmarshalling (kubewatch +// payload). +func ComputeSpecDiff(obj, oldObj map[string]any, opt SpecDiffOptions) []DiffEntry { + if oldObj == nil || obj == nil { + return nil + } + if len(opt.FieldsToMonitor) == 0 { + opt = DefaultSpecDiffOptions() + } + var diffs []DiffEntry + walkDiff("", oldObj, obj, &diffs) + if len(diffs) == 0 { + return nil + } + return filterDiffs(diffs, opt) +} + +// walkDiff appends one DiffEntry per leaf-level difference between +// before and after. Compares maps by union of keys, slices by index. +func walkDiff(path string, before, after any, out *[]DiffEntry) { + if jsonEqual(before, after) { + return + } + bMap, bIsMap := before.(map[string]any) + aMap, aIsMap := after.(map[string]any) + if bIsMap && aIsMap { + // Union of keys, deterministic order for stable diff output. + keys := unionKeys(bMap, aMap) + for _, k := range keys { + walkDiff(joinPath(path, k), bMap[k], aMap[k], out) + } + return + } + bArr, bIsArr := before.([]any) + aArr, aIsArr := after.([]any) + if bIsArr && aIsArr { + // Compare by index. K8s array semantics differ (containers are + // keyed by name, but volumeMounts by index, etc.); the legacy + // hikaru-driven diff sidestepped this — we walk by index too. + // The result is "noisier" for reorderings but is correct + // (every leaf change still shows up). + max := len(bArr) + if len(aArr) > max { + max = len(aArr) + } + for i := 0; i < max; i++ { + var bi, ai any + if i < len(bArr) { + bi = bArr[i] + } + if i < len(aArr) { + ai = aArr[i] + } + walkDiff(fmt.Sprintf("%s[%d]", path, i), bi, ai, out) + } + return + } + // Scalar (or type changed) — emit one diff entry. + *out = append(*out, DiffEntry{Path: path, Before: before, After: after}) +} + +// filterDiffs keeps entries whose path matches at least one +// FieldsToMonitor prefix AND none of the FieldsToOmit prefixes. +func filterDiffs(diffs []DiffEntry, opt SpecDiffOptions) []DiffEntry { + out := diffs[:0] + for _, d := range diffs { + if !pathMatchesAny(d.Path, opt.FieldsToMonitor) { + continue + } + if pathMatchesAny(d.Path, opt.FieldsToOmit) { + continue + } + out = append(out, d) + } + return out +} + +func pathMatchesAny(path string, prefixes []string) bool { + for _, p := range prefixes { + if path == p || strings.HasPrefix(path, p+".") || strings.HasPrefix(path, p+"[") { + return true + } + } + return false +} + +// jsonEqual compares two JSON-shaped values via canonical-marshal + +// bytes-equal. Robust against map-key ordering differences in the input. +func jsonEqual(a, b any) bool { + ab, _ := json.Marshal(a) + bb, _ := json.Marshal(b) + return string(ab) == string(bb) +} + +func unionKeys(a, b map[string]any) []string { + seen := make(map[string]struct{}, len(a)+len(b)) + for k := range a { + seen[k] = struct{}{} + } + for k := range b { + seen[k] = struct{}{} + } + out := make([]string, 0, len(seen)) + for k := range seen { + out = append(out, k) + } + sort.Strings(out) + return out +} + +func joinPath(prefix, key string) string { + if prefix == "" { + return key + } + return prefix + "." + key +} + +// BuildKubernetesDiffBlock returns the `type: "diff"` evidence block the +// UI's CodeMirrorDiffViewer +// (app/src/components1/k8s/common/KubernetesTable2.jsx:1184-1199) reads +// to render the old/new YAML side-by-side. +// +// `kind` is used to build resource_name; pass the K8s kind as kubewatch +// reports it ("Deployment", "DaemonSet", ...). +func BuildKubernetesDiffBlock(obj, oldObj map[string]any, kind string, diffs []DiffEntry) EvidenceBlock { + // Strip a small set of "noisy" fields before serializing + // (status, metadata.generation/resourceVersion/managedFields). Same + // fields the spec-diff filter omits — single source of truth. + omit := DefaultSpecDiffOptions().FieldsToOmit + + objYAML := objectToYAML(obj, omit) + oldYAML := objectToYAML(oldObj, omit) + + // resource_name follows the _obj_to_name convention: + // "//.yaml" (kind lowercased, namespace + // elided when empty). + name, namespace := metaName(obj), metaNS(obj) + if name == "" { + name, namespace = metaName(oldObj), metaNS(oldObj) + } + var resourceName string + if k := strings.ToLower(kind); k != "" { + resourceName = k + "/" + } + if namespace != "" { + resourceName += namespace + "/" + } + resourceName += name + ".yaml" + + // updated_paths / updated_values carry per-diff entries. + // We don't classify diffs as added/removed/modified, so + // num_additions/num_deletions stay 0 and the count goes into + // num_modifications. The UI displays the YAML diff regardless. + paths := make([]any, 0, len(diffs)) + values := make([]any, 0, len(diffs)) + for _, d := range diffs { + paths = append(paths, d.Path) + values = append(values, map[string]any{ + "path": d.Path, + "old": d.Before, + "new": d.After, + "report": "", + }) + } + + return EvidenceBlock{ + "type": "diff", + "data": map[string]any{ + "old": oldYAML, + "new": objYAML, + "resource_name": resourceName, + "num_additions": 0, + "num_deletions": 0, + "num_modifications": len(diffs), + "updated_paths": paths, + "updated_values": values, + }, + "additional_info": nil, + } +} + +// objectToYAML returns YAML for a K8s object: omitted fields stripped, +// keys snake-cased to match Hikaru's output (the wire shape historically +// produced via hikaru.get_yaml). +func objectToYAML(obj map[string]any, omit []string) string { + if obj == nil { + return "" + } + stripped := stripOmittedFields(obj, omit) + snaked := kube.SnakeKeysDeep(stripped) + b, err := yaml.Marshal(snaked) + if err != nil { + return "" + } + return string(b) +} + +// stripOmittedFields returns a deep copy of obj with `omit` paths +// removed (top-level keys + dotted sub-paths). Used by the diff-block +// builder so the YAML the UI renders matches the +// duplicate_without_fields output. +func stripOmittedFields(obj map[string]any, omit []string) map[string]any { + if obj == nil { + return nil + } + // Cheap deep copy via JSON round-trip — obj is already JSON-shaped + // from the kubewatch payload, so this is fast and avoids reaching + // for reflect. + b, err := json.Marshal(obj) + if err != nil { + return obj + } + var out map[string]any + if err := json.Unmarshal(b, &out); err != nil { + return obj + } + for _, path := range omit { + deletePath(out, strings.Split(path, ".")) + } + return out +} + +func deletePath(m map[string]any, parts []string) { + if len(parts) == 0 || m == nil { + return + } + if len(parts) == 1 { + delete(m, parts[0]) + return + } + next, _ := m[parts[0]].(map[string]any) + if next == nil { + return + } + deletePath(next, parts[1:]) +} + +// RenderDiffMarkdown turns a slice of DiffEntry into a small Markdown +// table — one row per changed path. Kept for tests and any caller that +// wants a human-readable summary; the babysitter Finding now ships a +// `type: "diff"` block (BuildKubernetesDiffBlock) so the UI can render +// the full old/new YAML side-by-side. +func RenderDiffMarkdown(diffs []DiffEntry) string { + if len(diffs) == 0 { + return "" + } + var b strings.Builder + b.WriteString("**Changed fields:**\n\n") + b.WriteString("| Path | Before | After |\n") + b.WriteString("|---|---|---|\n") + for _, d := range diffs { + b.WriteString("| `") + b.WriteString(d.Path) + b.WriteString("` | ") + b.WriteString(renderValueCell(d.Before)) + b.WriteString(" | ") + b.WriteString(renderValueCell(d.After)) + b.WriteString(" |\n") + } + return b.String() +} + +// renderValueCell formats a value for a single Markdown table cell. +// Long values are truncated; nil renders as the literal "(unset)". +func renderValueCell(v any) string { + if v == nil { + return "_(unset)_" + } + bytes, _ := json.Marshal(v) + s := string(bytes) + // Clamp absurd payloads (large nested specs) so the cell stays + // inspectable. Full diff is in the JSON evidence block. + const max = 200 + if len(s) > max { + s = s[:max] + "…" + } + // Markdown table cells can't contain unescaped pipes. + return strings.ReplaceAll(s, "|", `\|`) +} diff --git a/runner/pkg/triggers/diff_test.go b/runner/pkg/triggers/diff_test.go new file mode 100644 index 0000000..1af53dd --- /dev/null +++ b/runner/pkg/triggers/diff_test.go @@ -0,0 +1,181 @@ +package triggers + +import ( + "strings" + "testing" +) + +// TestComputeSpecDiff_PicksUpReplicaChange exercises the headline +// babysitter case: a Deployment had its replicas bumped from 2 to 5. +// One DiffEntry expected at path "spec.replicas". +func TestComputeSpecDiff_PicksUpReplicaChange(t *testing.T) { + old := mustObj(t, `{"metadata":{"name":"d"},"spec":{"replicas":2,"template":{"spec":{"containers":[{"name":"app","image":"v1"}]}}}}`) + new := mustObj(t, `{"metadata":{"name":"d"},"spec":{"replicas":5,"template":{"spec":{"containers":[{"name":"app","image":"v1"}]}}}}`) + diffs := ComputeSpecDiff(new, old, DefaultSpecDiffOptions()) + if len(diffs) != 1 { + t.Fatalf("expected 1 diff; got %d: %+v", len(diffs), diffs) + } + if diffs[0].Path != "spec.replicas" { + t.Errorf("path = %q; want spec.replicas", diffs[0].Path) + } + if diffs[0].Before.(float64) != 2 || diffs[0].After.(float64) != 5 { + t.Errorf("before/after = %v/%v; want 2/5", diffs[0].Before, diffs[0].After) + } +} + +// TestComputeSpecDiff_OmitsManagedFieldsAndStatus covers +// BabysitterConfig.omitted_fields. Without this filter, every kubectl- +// apply (which mutates managedFields) and every controller heartbeat +// (which mutates status) would fire a Finding. +func TestComputeSpecDiff_OmitsManagedFieldsAndStatus(t *testing.T) { + old := mustObj(t, `{ + "metadata":{"name":"d","resourceVersion":"100","generation":1,"managedFields":[{"manager":"old"}]}, + "spec":{"replicas":2}, + "status":{"replicas":2,"availableReplicas":2} + }`) + new := mustObj(t, `{ + "metadata":{"name":"d","resourceVersion":"101","generation":2,"managedFields":[{"manager":"new"}]}, + "spec":{"replicas":2}, + "status":{"replicas":1,"availableReplicas":1} + }`) + diffs := ComputeSpecDiff(new, old, DefaultSpecDiffOptions()) + if len(diffs) != 0 { + t.Errorf("expected 0 diffs (only metadata + status changed); got %+v", diffs) + } +} + +// TestComputeSpecDiff_NestedSpecChange — a container image bump deep +// inside spec.template.spec.containers[0].image must show up. +func TestComputeSpecDiff_NestedSpecChange(t *testing.T) { + old := mustObj(t, `{"metadata":{"name":"d"},"spec":{"replicas":2,"template":{"spec":{"containers":[{"name":"app","image":"v1"}]}}}}`) + new := mustObj(t, `{"metadata":{"name":"d"},"spec":{"replicas":2,"template":{"spec":{"containers":[{"name":"app","image":"v2"}]}}}}`) + diffs := ComputeSpecDiff(new, old, DefaultSpecDiffOptions()) + if len(diffs) != 1 { + t.Fatalf("expected 1 diff; got %d", len(diffs)) + } + if diffs[0].Path != "spec.template.spec.containers[0].image" { + t.Errorf("path = %q; want spec.template.spec.containers[0].image", diffs[0].Path) + } +} + +func TestComputeSpecDiff_NoDiffOnNoChange(t *testing.T) { + obj := mustObj(t, `{"metadata":{"name":"d"},"spec":{"replicas":2}}`) + if d := ComputeSpecDiff(obj, obj, DefaultSpecDiffOptions()); len(d) != 0 { + t.Errorf("identical objects must produce no diffs; got %+v", d) + } +} + +// TestRenderDiffMarkdown_StableFormat — the renderer must produce a +// table the UI's markdown renderer can parse. Smoke test the +// header rows + value cells. +func TestRenderDiffMarkdown_StableFormat(t *testing.T) { + md := RenderDiffMarkdown([]DiffEntry{ + {Path: "spec.replicas", Before: float64(2), After: float64(5)}, + }) + for _, want := range []string{"**Changed fields:**", "| Path | Before | After |", "| `spec.replicas` |", " | 2 | 5 |"} { + if !strings.Contains(md, want) { + t.Errorf("rendered markdown missing %q\n%s", want, md) + } + } +} + +func TestRenderDiffMarkdown_HandlesNilUnsetSide(t *testing.T) { + md := RenderDiffMarkdown([]DiffEntry{ + {Path: "spec.tolerations", Before: nil, After: []any{}}, + }) + if !strings.Contains(md, "_(unset)_") { + t.Errorf("nil side must render as (unset); got: %s", md) + } +} + +// ---------- babysitter matcher integration ---------- + +func TestBabysitter_FiresOnReplicaChange(t *testing.T) { + old := mustObj(t, `{"metadata":{"name":"d","namespace":"prod","resourceVersion":"100"},"spec":{"replicas":2}}`) + new := mustObj(t, `{"metadata":{"name":"d","namespace":"prod","resourceVersion":"101"},"spec":{"replicas":5}}`) + m := babysitterChangeMatcher("Deployment") + if !m.Predicate(new, old) { + t.Fatal("predicate must fire on spec.replicas change") + } + if m.AggregationKey != "ConfigurationChange/KubernetesResource/Change" { + t.Errorf("aggregation_key = %q; want ConfigurationChange/KubernetesResource/Change", m.AggregationKey) + } +} + +func TestBabysitter_DoesNotFireOnStatusOnlyChange(t *testing.T) { + old := mustObj(t, `{"metadata":{"name":"d","namespace":"prod"},"spec":{"replicas":2},"status":{"availableReplicas":2}}`) + new := mustObj(t, `{"metadata":{"name":"d","namespace":"prod"},"spec":{"replicas":2},"status":{"availableReplicas":1}}`) + if babysitterChangeMatcher("Deployment").Predicate(new, old) { + t.Error("status-only change must not fire babysitter") + } +} + +func TestBabysitter_DoesNotFireOnCreate(t *testing.T) { + // Predicate receives nil oldObj on CREATE — nothing to diff against. + new := mustObj(t, `{"metadata":{"name":"d","namespace":"prod"},"spec":{"replicas":2}}`) + if babysitterChangeMatcher("Deployment").Predicate(new, nil) { + t.Error("babysitter must not fire on CREATE (no oldObj)") + } +} + +func TestBabysitter_EnrichBlocksAttachesDiffBlock(t *testing.T) { + // UI's KubernetesTable2.jsx:1184-1199 filters evidence blocks for + // type==='diff' and feeds data.old / data.new into CodeMirrorDiffViewer. + // Anything else (e.g. "markdown") shows "No diff available." + old := mustObj(t, `{"metadata":{"name":"d","namespace":"prod","resourceVersion":"99"},"spec":{"replicas":2}}`) + new := mustObj(t, `{"metadata":{"name":"d","namespace":"prod","resourceVersion":"100"},"spec":{"replicas":5}}`) + m := babysitterChangeMatcher("Deployment") + blocks := m.EnrichBlocks(new, old, EnrichContext{}) + if len(blocks) != 1 { + t.Fatalf("expected 1 evidence block; got %d", len(blocks)) + } + b := blocks[0] + if b["type"] != "diff" { + t.Fatalf("block type = %v; want diff", b["type"]) + } + data, _ := b["data"].(map[string]any) + if data == nil { + t.Fatalf("block.data missing or wrong type: %v", b["data"]) + } + oldYAML, _ := data["old"].(string) + newYAML, _ := data["new"].(string) + if !strings.Contains(oldYAML, "replicas: 2") { + t.Errorf("data.old missing 'replicas: 2': %s", oldYAML) + } + if !strings.Contains(newYAML, "replicas: 5") { + t.Errorf("data.new missing 'replicas: 5': %s", newYAML) + } + if data["resource_name"] != "deployment/prod/d.yaml" { + t.Errorf("resource_name = %v; want deployment/prod/d.yaml", data["resource_name"]) + } + // metadata.resourceVersion is in the omit list — must NOT leak into + // the rendered YAML; otherwise every Finding shows the bumped rv as + // a "change" the user has to ignore. + if strings.Contains(newYAML, "resourceVersion") || strings.Contains(newYAML, "resource_version") { + t.Errorf("resourceVersion leaked into YAML: %s", newYAML) + } + paths, _ := data["updated_paths"].([]any) + if len(paths) == 0 { + t.Error("updated_paths must list the changed paths") + } + values, _ := data["updated_values"].([]any) + if len(values) == 0 { + t.Error("updated_values must carry the path/old/new triples") + } +} + +func TestBabysitter_FingerprintIncludesResourceVersion(t *testing.T) { + // Two distinct spec changes (different resourceVersions) → two + // distinct fingerprints → two Findings, not deduped to one. + mk := func(rv string, replicas int) map[string]any { + return mustObj(t, `{"metadata":{"name":"d","namespace":"prod","resourceVersion":"`+rv+`"},"spec":{"replicas":`+itoa(replicas)+`}}`) + } + m := babysitterChangeMatcher("Deployment") + if m.FingerprintFn(mk("100", 2)) == m.FingerprintFn(mk("101", 5)) { + t.Error("different resourceVersions must produce distinct fingerprints") + } +} + +// ---------- helpers ---------- + +func mustObj(t *testing.T, s string) map[string]any { t.Helper(); return asObj(t, s) } diff --git a/runner/pkg/triggers/engine.go b/runner/pkg/triggers/engine.go new file mode 100644 index 0000000..fcc29cb --- /dev/null +++ b/runner/pkg/triggers/engine.go @@ -0,0 +1,223 @@ +package triggers + +import ( + "strings" + "time" +) + +// DefaultGraceWindow is the cushion subtracted from agentStartTime to +// decide whether an obj is "old enough to be a resync re-fire". Plan- +// agent recommended 120s — the legacy runner got this implicitly via +// informer resync semantics; we have to add it explicitly because we +// run matchers on every kubewatch UPDATE including resync. +const DefaultGraceWindow = 2 * time.Minute + +// Engine ties matchers + rate-limiter + restart grace-window into one +// dispatch loop. One Engine per agent process; concurrent-safe (the +// rate-limiter has its own mutex; spec list is read-only after build). +type Engine struct { + specs []MatcherSpec + rl *RateLimiter + startTime time.Time + graceWindow time.Duration + now func() time.Time // injectable for tests + eventsLister K8sEventsLister // optional; threaded into EnrichBlocks +} + +// NewEngine builds an Engine with the given specs. agentStartTime should +// be `time.Now()` at process start — used by the resync grace window. +func NewEngine(specs []MatcherSpec, agentStartTime time.Time) *Engine { + return &Engine{ + specs: specs, + rl: NewRateLimiter(0), + startTime: agentStartTime, + graceWindow: DefaultGraceWindow, + now: time.Now, + } +} + +// WithEventsLister returns the engine wired with a K8s events lister. +// Call once at boot from main.go after building the typed clientset. +// Once set, every successful match gets a "Recent events" table +// appended automatically (engine-side default evidence) and EnrichBlocks +// receives a non-nil EventsLister via EnrichContext for matcher-specific +// uses. +func (e *Engine) WithEventsLister(l K8sEventsLister) *Engine { + e.eventsLister = l + return e +} + +// fetchSubjectEvents builds a "Recent events" table for the +// matched object. Skipped when the lister is unwired (unit tests), +// when the matched kind is Event (the warning_event matcher's subject +// IS the event already, no point fetching events about an event), or +// when the namespace/name pair can't be resolved. +// +// Centralizing this in the engine — rather than per-matcher EnrichBlocks +// — lets every matcher (current + future) inherit the evidence without +// repeating the same recentEventsTable call. +func (e *Engine) fetchSubjectEvents(matcherName, kind, namespace, name string) []EvidenceBlock { + if e.eventsLister == nil || namespace == "" || name == "" || kind == "" { + return nil + } + if matcherName == "warning_event" { + return nil + } + return recentEventsTable(EnrichContext{EventsLister: e.eventsLister}, + namespace, kind, name, "Recent "+kind+" events", recentEventsLimit) +} + +// fetchNodeEvents builds a "Recent Node events on " table for the +// node the matched subject runs on. Surfaces node-level problems +// (DiskPressure, NetworkUnavailable, kubelet warnings) alongside the +// primary finding so users see "is the node sick?" without leaving the +// card. Skipped when the subject has no resolvable node. +func (e *Engine) fetchNodeEvents(node string) []EvidenceBlock { + if e.eventsLister == nil || node == "" { + return nil + } + return recentEventsTable(EnrichContext{EventsLister: e.eventsLister}, + "", "Node", node, "Recent Node events on "+node, supplementaryEventsLimit) +} + +// fetchNamespaceEvents builds a "Recent events in namespace " table +// listing every recent event in the namespace (no involvedObject +// filter). Surfaces sibling-pod failures and namespace-wide issues. +func (e *Engine) fetchNamespaceEvents(namespace string) []EvidenceBlock { + if e.eventsLister == nil || namespace == "" { + return nil + } + return recentEventsTable(EnrichContext{EventsLister: e.eventsLister}, + namespace, "", "", "Recent events in namespace "+namespace, supplementaryEventsLimit) +} + +// Match runs every matcher against the event and returns one Match per +// fired trigger. A single event can fire several matchers (a Pod can be +// both ImagePullBackOff and CrashLoopBackOff). +// +// Filtering order per matcher: +// +// 1. Kind filter (cheap, drops most events fast) +// 2. Operation filter (cheap) +// 3. Predicate (does the actual K8s field walking) +// 4. Resync suppression (creationTimestamp older than start+grace) +// 5. Rate limit (fingerprint seen recently?) +// +// Order matters: the rate-limiter shouldn't be touched for events that +// don't satisfy the predicate, otherwise the LRU fills with garbage +// keys from non-matching events. +func (e *Engine) Match(ev IncomingK8sEvent) []Match { + if ev.Obj == nil { + return nil + } + matches := make([]Match, 0, 1) + for i := range e.specs { + spec := &e.specs[i] + if !kindMatches(spec.Kind, ev.Kind) { + continue + } + if !operationMatches(spec.Operations, ev.Operation) { + continue + } + if spec.Predicate == nil || !spec.Predicate(ev.Obj, ev.OldObj) { + continue + } + if spec.SuppressOnResync && e.suppressedByResync(ev.Obj) { + continue + } + fingerprint := "" + if spec.FingerprintFn != nil { + fingerprint = spec.FingerprintFn(ev.Obj) + } + if !e.rl.Allow(spec.Name+":"+fingerprint, spec.RateLimit) { + continue + } + + name, namespace, lowerKind, node := SubjectFromObj(ev.Kind, ev.Obj) + // Warning Event: subject is the involvedObject, not the Event itself. + if spec.Name == "warning_event" { + if io, _ := ev.Obj["involvedObject"].(map[string]any); io != nil { + if v, _ := io["name"].(string); v != "" { + name = v + } + if v, _ := io["namespace"].(string); v != "" { + namespace = v + } + if v, _ := io["kind"].(string); v != "" { + lowerKind = strings.ToLower(v) + } + } + } + var extra []EvidenceBlock + if spec.EnrichBlocks != nil { + extra = spec.EnrichBlocks(ev.Obj, ev.OldObj, EnrichContext{ + EventsLister: e.eventsLister, + }) + } + // Default evidence: three K8s events tables per match — + // 1. subject events (Pod / Deployment / Job / ...) + // 2. node events (when the subject runs on a node) + // 3. namespace events (every recent event in the namespace) + // + // The node + namespace tables surface adjacent problems alongside + // the primary finding (sick node, sibling-pod failures) so users + // don't have to leave the Finding card to triage. All three are + // skipped when the lister isn't wired (unit tests / no K8s client). + extra = append(extra, e.fetchSubjectEvents(spec.Name, ev.Kind, namespace, name)...) + extra = append(extra, e.fetchNodeEvents(node)...) + extra = append(extra, e.fetchNamespaceEvents(namespace)...) + matches = append(matches, Match{ + Spec: spec, + Fingerprint: fingerprint, + Owner: ResolveOwner(ev.Obj), + SubjectName: name, + SubjectNamespace: namespace, + SubjectKind: lowerKind, + SubjectNode: node, + ExtraBlocks: extra, + }) + } + return matches +} + +// suppressedByResync returns true when the obj's creationTimestamp is +// far enough in the past that this event is almost certainly a kubewatch +// resync of an already-known object — not a fresh state change. Without +// this, every helm rollout fires a Finding for every Pod currently in a +// bad state. +func (e *Engine) suppressedByResync(obj map[string]any) bool { + meta, _ := obj["metadata"].(map[string]any) + if meta == nil { + return false + } + cts, _ := meta["creationTimestamp"].(string) + if cts == "" { + return false + } + t, err := time.Parse(time.RFC3339, cts) + if err != nil { + return false // non-fatal; just don't suppress + } + // Suppress when the object is older than (agentStart - graceWindow). + // i.e., the obj existed before the agent started + 2 min. + return t.Before(e.startTime.Add(-e.graceWindow)) +} + +func kindMatches(specKind, eventKind string) bool { + if specKind == "" || specKind == "Any" { + return true + } + return specKind == eventKind +} + +func operationMatches(specOps []string, eventOp string) bool { + if len(specOps) == 0 { + return true + } + for _, op := range specOps { + if op == eventOp { + return true + } + } + return false +} diff --git a/runner/pkg/triggers/events_block.go b/runner/pkg/triggers/events_block.go new file mode 100644 index 0000000..a9647c2 --- /dev/null +++ b/runner/pkg/triggers/events_block.go @@ -0,0 +1,111 @@ +package triggers + +import ( + "context" + "fmt" + "sort" + "time" +) + +// recentEventsTimeout caps the K8s API call EnrichBlocks makes when +// fetching events. The matcher path is hot — never block the whole +// trigger pipeline on a slow API server. If the fetch times out we +// emit a placeholder block so users still see "we tried" in the UI +// rather than no evidence at all. +const recentEventsTimeout = 3 * time.Second + +// recentEventsLimit caps rows for the subject-scoped events table. +// pod_events_enricher truncates at 30 by default; same here. +const recentEventsLimit = 30 + +// supplementaryEventsLimit caps rows for the node + namespace tables +// the engine appends as extra context. Smaller than the subject limit +// so the Finding card stays readable. +const supplementaryEventsLimit = 10 + +// recentEventsTable returns the `type: "table"` evidence block listing +// the most recent K8s events scoped by the (namespace, kind, name) +// triple. Each dimension can be empty for broader scopes: +// +// - subject: namespace=ns, kind=Pod, name=web-0 +// - node: namespace="", kind="Node", name= +// - namespace: namespace=ns, kind="", name="" +// +// Returns nil when no lister is wired, when the lister errored, or +// when there are no events to surface. +func recentEventsTable(ec EnrichContext, namespace, kind, name, title string, limit int) []EvidenceBlock { + if ec.EventsLister == nil { + return nil + } + ctx, cancel := context.WithTimeout(context.Background(), recentEventsTimeout) + defer cancel() + events, err := ec.EventsLister.ListEvents(ctx, namespace, kind, name, limit) + if err != nil || len(events) == 0 { + return nil + } + // Most-recent first. + sort.Slice(events, func(i, j int) bool { + return events[i].LastSeen.After(events[j].LastSeen) + }) + headers := []any{"Last Seen", "Type", "Reason", "Source", "Count", "Message"} + rows := make([]any, 0, len(events)) + for _, e := range events { + count := int(e.Count) + if count == 0 { + count = 1 + } + rows = append(rows, []any{ + formatEventTimeAgo(e.LastSeen), + e.Type, + e.Reason, + e.Source, + fmt.Sprintf("%d", count), + truncate(e.Message, 200), + }) + } + return []EvidenceBlock{{ + "type": "table", + "data": map[string]any{ + "table_name": title, + "headers": headers, + "rows": rows, + "column_renderers": map[string]any{}, + }, + "additional_info": map[string]any{ + "object_kind": kind, + "object_namespace": namespace, + "object_name": name, + "event_count": len(events), + }, + }} +} + +// formatEventTimeAgo renders an event timestamp as "1m ago" / "12s ago" +// / "3h ago" — same shape `kubectl get events` and the UI use. +// Falls back to RFC3339 when the timestamp is zero (e.g. truncated +// event payload from older K8s versions). +func formatEventTimeAgo(t time.Time) string { + if t.IsZero() { + return "unknown" + } + d := time.Since(t) + switch { + case d < 0: + return t.UTC().Format(time.RFC3339) + case d < time.Minute: + return fmt.Sprintf("%ds ago", int(d.Seconds())) + case d < time.Hour: + return fmt.Sprintf("%dm ago", int(d.Minutes())) + case d < 24*time.Hour: + return fmt.Sprintf("%dh ago", int(d.Hours())) + default: + return fmt.Sprintf("%dd ago", int(d.Hours()/24)) + } +} + +func truncate(s string, max int) string { + if len(s) <= max { + return s + } + return s[:max-1] + "…" +} diff --git a/runner/pkg/triggers/events_block_test.go b/runner/pkg/triggers/events_block_test.go new file mode 100644 index 0000000..0085723 --- /dev/null +++ b/runner/pkg/triggers/events_block_test.go @@ -0,0 +1,228 @@ +package triggers + +import ( + "context" + "strings" + "testing" + "time" +) + +// stubLister is the in-memory K8sEventsLister used in unit tests so we +// can exercise the engine's "fetch events for every match" behaviour +// without a real K8s client. +type stubLister struct { + calls []listCall + events []K8sEvent + err error +} + +type listCall struct{ namespace, kind, name string } + +func (s *stubLister) ListEvents(_ context.Context, ns, kind, name string, _ int) ([]K8sEvent, error) { + s.calls = append(s.calls, listCall{ns, kind, name}) + return s.events, s.err +} + +// TestEngine_AppendsRecentEventsTablePerMatch is the headline guarantee: +// regardless of which matcher fires, the engine attaches a "Recent +// events" table for the matched object so users see the +// kubelet-emitted reasons (BackOff / Killing / OOMKilling / FailedScheduling) +// in the same Finding card. +func TestEngine_AppendsRecentEventsTablePerMatch(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod","ownerReferences":[{"kind":"ReplicaSet","name":"web","controller":true}]}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + stub := &stubLister{events: []K8sEvent{ + {Type: "Warning", Reason: "BackOff", Message: "Back-off restarting failed container", Count: 17, + LastSeen: time.Now().Add(-30 * time.Second), Source: "kubelet"}, + {Type: "Warning", Reason: "Failed", Message: "Error: ImagePullBackOff", Count: 1, + LastSeen: time.Now().Add(-2 * time.Minute), Source: "kubelet"}, + }} + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)).WithEventsLister(stub) + matches := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod, OldObj: pod}) + if !contains(matchNames(matches), "pod_crash_loop") { + t.Fatal("expected pod_crash_loop to fire") + } + if len(stub.calls) == 0 { + t.Fatal("expected the engine to call ListEvents at least once for the matched Pod") + } + got := stub.calls[0] + if got.namespace != "prod" || got.kind != "Pod" || got.name != "web-0" { + t.Errorf("ListEvents called with (ns=%q,kind=%q,name=%q); want (prod,Pod,web-0)", got.namespace, got.kind, got.name) + } + // Confirm the events table block was appended to the match. + var found bool + for _, m := range matches { + if m.Spec.Name != "pod_crash_loop" { + continue + } + for _, b := range m.ExtraBlocks { + if b["type"] != "table" { + continue + } + data, _ := b["data"].(map[string]any) + if name, _ := data["table_name"].(string); strings.HasPrefix(name, "Recent Pod events") { + found = true + rows, _ := data["rows"].([]any) + if len(rows) != 2 { + t.Errorf("rows = %d; want 2 (one per stub event)", len(rows)) + } + } + } + } + if !found { + t.Error("matched Finding missing the 'Recent Pod events' table block") + } +} + +// TestEngine_SubjectEventsSkippedForWarningEvent: the warning_event +// matcher's subject IS already the K8s Event, so fetching events about +// an event would be circular and noisy. Engine must skip the subject +// fetch in that case — but node + namespace tables still apply since +// they're keyed off the involved Pod's namespace/node, not the Event. +func TestEngine_SubjectEventsSkippedForWarningEvent(t *testing.T) { + ev := asObj(t, `{ + "metadata":{"name":"e1","namespace":"prod"}, + "type":"Warning", + "reason":"FailedScheduling", + "involvedObject":{"kind":"Pod","name":"web-0","namespace":"prod"} + }`) + stub := &stubLister{events: []K8sEvent{{Reason: "X"}}} + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)).WithEventsLister(stub) + matches := eng.Match(IncomingK8sEvent{Operation: "create", Kind: "Event", Obj: ev}) + if !contains(matchNames(matches), "warning_event") { + t.Fatal("expected warning_event to fire") + } + for _, c := range stub.calls { + if c.kind == "Event" { + t.Errorf("ListEvents must NOT be called with kind=Event for warning_event matches; got %+v", c) + } + } +} + +// TestEngine_AppendsNodeEventsTable: when the matched Pod has a node, +// the engine attaches a "Recent Node events" table so users see +// node-level issues (DiskPressure / NetworkUnavailable / kubelet +// warnings) alongside the primary finding. +func TestEngine_AppendsNodeEventsTable(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "spec":{"nodeName":"gke-pool-a-9f4d"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + stub := &stubLister{events: []K8sEvent{ + {Type: "Warning", Reason: "BackOff", LastSeen: time.Now()}, + }} + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)).WithEventsLister(stub) + matches := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod, OldObj: pod}) + if !contains(matchNames(matches), "pod_crash_loop") { + t.Fatal("expected pod_crash_loop to fire") + } + var sawNodeCall bool + for _, c := range stub.calls { + if c.namespace == "" && c.kind == "Node" && c.name == "gke-pool-a-9f4d" { + sawNodeCall = true + } + } + if !sawNodeCall { + t.Errorf("expected a ListEvents call with (ns=\"\",kind=\"Node\",name=\"gke-pool-a-9f4d\"); got %+v", stub.calls) + } + if !findTableByPrefix(matches, "pod_crash_loop", "Recent Node events on gke-pool-a-9f4d") { + t.Error("matched Finding missing the 'Recent Node events on ' table block") + } +} + +// TestEngine_AppendsNamespaceEventsTable: every match also gets a +// "Recent events in namespace " table showing every recent event +// in the same namespace — sibling-pod failures, namespace-wide issues. +func TestEngine_AppendsNamespaceEventsTable(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + stub := &stubLister{events: []K8sEvent{ + {Type: "Warning", Reason: "BackOff", LastSeen: time.Now()}, + }} + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)).WithEventsLister(stub) + matches := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod, OldObj: pod}) + if !contains(matchNames(matches), "pod_crash_loop") { + t.Fatal("expected pod_crash_loop to fire") + } + var sawNsCall bool + for _, c := range stub.calls { + if c.namespace == "prod" && c.kind == "" && c.name == "" { + sawNsCall = true + } + } + if !sawNsCall { + t.Errorf("expected a ListEvents call with (ns=\"prod\",kind=\"\",name=\"\"); got %+v", stub.calls) + } + if !findTableByPrefix(matches, "pod_crash_loop", "Recent events in namespace prod") { + t.Error("matched Finding missing the 'Recent events in namespace ' table block") + } +} + +// TestEngine_SkipsNodeTableWhenNoNode: the node table is omitted for +// matchers whose subject doesn't run on a node (Deployment babysitter +// updates, Job failures pre-Pod-creation, etc.). Confirms we don't ship +// an empty "Recent Node events on" block. +func TestEngine_SkipsNodeTableWhenNoNode(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + stub := &stubLister{events: []K8sEvent{{Reason: "BackOff", LastSeen: time.Now()}}} + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)).WithEventsLister(stub) + eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod, OldObj: pod}) + for _, c := range stub.calls { + if c.kind == "Node" { + t.Errorf("ListEvents must NOT be called with kind=Node when the Pod has no nodeName; got %+v", c) + } + } +} + +// findTableByPrefix scans the given matcher's ExtraBlocks for a table +// whose table_name starts with the given prefix. +func findTableByPrefix(matches []Match, matcherName, tablePrefix string) bool { + for _, m := range matches { + if m.Spec.Name != matcherName { + continue + } + for _, b := range m.ExtraBlocks { + if b["type"] != "table" { + continue + } + data, _ := b["data"].(map[string]any) + if name, _ := data["table_name"].(string); strings.HasPrefix(name, tablePrefix) { + return true + } + } + } + return false +} + +// TestEngine_NoListerNoCrash: when the engine wasn't wired with a +// K8sEventsLister (unit tests, agent without K8s client), Match must +// still return the match — just without the events table block. +func TestEngine_NoListerNoCrash(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)) // no lister + matches := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod, OldObj: pod}) + if !contains(matchNames(matches), "pod_crash_loop") { + t.Fatal("expected pod_crash_loop to fire even without a lister") + } +} diff --git a/runner/pkg/triggers/owner.go b/runner/pkg/triggers/owner.go new file mode 100644 index 0000000..6423b6b --- /dev/null +++ b/runner/pkg/triggers/owner.go @@ -0,0 +1,103 @@ +package triggers + +import ( + "regexp" + "strings" +) + +// ResolveOwner walks one level of obj.metadata.ownerReferences and +// returns the top-level workload (Deployment / DaemonSet / StatefulSet / +// Job / CronJob) when it can derive it. +// +// We only have the current obj from kubewatch — we don't fetch parent +// objects from the API server because the matcher path is hot and we +// want zero K8s API calls. That limits us to one walk step. The +// ReplicaSet → Deployment derivation is heuristic (strip the +// pod-template-hash suffix from the ReplicaSet name); same heuristic +// the legacy implementation uses. +// +// Returns zero OwnerRef when no controlling owner is set (bare Pod, +// no-controller resource). +// +// Why the owner matters: without it, every Pod restart from a ReplicaSet +// gets a different Pod name → different fingerprint → new Finding for +// every restart. Resolving to the Deployment lets us dedupe at the +// workload level, matching how the UI groups findings. +func ResolveOwner(obj map[string]any) OwnerRef { + meta, _ := obj["metadata"].(map[string]any) + if meta == nil { + return OwnerRef{} + } + refsRaw, _ := meta["ownerReferences"].([]any) + for _, r := range refsRaw { + ref, _ := r.(map[string]any) + if ref == nil { + continue + } + // Pick the controller=true ref. If `controller` is missing + // entirely (pre-1.16 manifests, or some operators), fall + // through and accept the first ref. + isController, hasField := ref["controller"].(bool) + if hasField && !isController { + continue + } + name, _ := ref["name"].(string) + kind, _ := ref["kind"].(string) + if name == "" || kind == "" { + continue + } + return canonicalOwner(kind, name) + } + return OwnerRef{} +} + +// canonicalOwner normalizes the (kind, name) pair to the top-level +// workload. ReplicaSet names are derived from their owning Deployment +// by appending a `-<10-char-hash>` suffix, so we strip that to get the +// Deployment name. Other kinds pass through unchanged. +func canonicalOwner(kind, name string) OwnerRef { + lk := strings.ToLower(kind) + switch lk { + case "replicaset": + // "web-7f9d8c5b6" → "web". + return OwnerRef{Name: stripPodTemplateHash(name), Kind: "deployment"} + case "deployment", "daemonset", "statefulset", "job", "cronjob", + "rollout", "horizontalpodautoscaler", "node": + return OwnerRef{Name: name, Kind: lk} + default: + // Unknown owner kind (Operator-managed CR, etc.). Keep as-is — + // dedup still works at the immediate-owner level, just not + // rolled up to the controller's controller. + return OwnerRef{Name: name, Kind: lk} + } +} + +// podTemplateHashSuffix matches the hash suffix the Deployment controller +// appends to ReplicaSet names: `-<10 chars [bcdfghjklmnpqrstvwxz2456789]>`. +// The character set is the controller's hash alphabet (rand_string in +// k8s.io/apimachinery/pkg/util/rand). 10 chars is the current length, but +// the regex is permissive (8-12) to tolerate older clusters. +var podTemplateHashSuffix = regexp.MustCompile(`-[bcdfghjklmnpqrstvwxz2456789]{8,12}$`) + +func stripPodTemplateHash(name string) string { + return podTemplateHashSuffix.ReplaceAllString(name, "") +} + +// SubjectFromObj extracts the (name, namespace, lowercased-kind, node) +// for an obj. node is "" when not a Pod or when not yet scheduled. +// Used by Engine.Match to populate Match.Subject* fields uniformly. +func SubjectFromObj(kind string, obj map[string]any) (name, namespace, lowerKind, node string) { + meta, _ := obj["metadata"].(map[string]any) + if meta != nil { + name, _ = meta["name"].(string) + namespace, _ = meta["namespace"].(string) + } + lowerKind = strings.ToLower(kind) + if lowerKind == "pod" { + spec, _ := obj["spec"].(map[string]any) + if spec != nil { + node, _ = spec["nodeName"].(string) + } + } + return +} diff --git a/runner/pkg/triggers/predicates.go b/runner/pkg/triggers/predicates.go new file mode 100644 index 0000000..feafa3e --- /dev/null +++ b/runner/pkg/triggers/predicates.go @@ -0,0 +1,849 @@ +package triggers + +import ( + "crypto/sha256" + "encoding/hex" + "fmt" + "strings" + "time" +) + +// Builtins returns the default matcher set the agent ships with. +// Order doesn't matter — the engine evaluates every matcher +// independently and emits one Match per fired trigger (a Pod can be +// both ImagePullBackOff and later CrashLoopBackOff and produce both). +// +// New matchers added here automatically participate in the engine. When +// stage 2.3 ships DB-stored playbook config, this list moves into a +// per-tenant pull from the api-server; the matcher SHAPE doesn't change. +func Builtins() []MatcherSpec { + out := []MatcherSpec{ + podCrashLoopMatcher(), + podOOMKilledMatcher(), + imagePullBackoffMatcher(), + jobFailureMatcher(), + nodeNotReadyMatcher(), + warningEventMatcher(), + } + // One matcher per babysitter-watched kind. We register them as + // separate specs (rather than `Kind: "Any"` with an in-predicate + // kind switch) so the engine's cheap kind-filter still drops events + // for the wrong kind before we touch the diff machinery. + for _, kind := range []string{"Deployment", "DaemonSet", "StatefulSet", "Ingress", "Rollout"} { + out = append(out, babysitterChangeMatcher(kind)) + } + return out +} + +// ------- Pod CrashLoopBackOff ------- + +// podCrashLoopMatcher implements PodCrashLoopTrigger: fires when any +// container is in waiting state with reason CrashLoopBackOff AND has +// restarted at least `restart_count` times (default 2). Operation=UPDATE +// only — kubewatch sees CrashLoopBackOff as an UPDATE. +// +// Note on de-dup: we used to require `obj.restartCount > oldObj.restartCount` +// to detect a real transition vs. a kubewatch resync re-emit. That doesn't +// work — kubewatch's UpdateFunc shares one closure-scoped `var newEvent +// Event` (kubewatch/pkg/controller/controller.go:787) and the K8s informer +// passes `old`/`new` as references that often share underlying memory. +// Live capture confirms: every kubewatch UPDATE for a CrashLoopBackOff +// Pod has obj.restartCount == oldObj.restartCount, so the transition gate +// suppressed every real event. +// +// Rate limit: 1h per (owner, hour-bucket). A Pod stuck in CrashLoopBackOff +// fires ~1 Finding per hour. Earlier the matcher bucketed by +// restartCount/5 with a 10m rate limit — a fast-crashing Pod (5 restarts +// every ~10m) advanced the bucket every window and produced 20+ findings +// in 6h. Hour-bucket pattern mirrors podOOMKilledMatcher. +func podCrashLoopMatcher() MatcherSpec { + const minRestarts = 2 + return MatcherSpec{ + Name: "pod_crash_loop", + Kind: "Pod", + Operations: []string{"update"}, + AggregationKey: "report_crash_loop", + Priority: "HIGH", + FindingType: "issue", + RateLimit: time.Hour, + Predicate: func(obj, _ map[string]any) bool { + for _, cs := range podContainerStatuses(obj) { + st, _ := cs["state"].(map[string]any) + w, _ := st["waiting"].(map[string]any) + if w == nil { + continue + } + if reason, _ := w["reason"].(string); reason != "CrashLoopBackOff" { + continue + } + rc, _ := cs["restartCount"].(float64) + if int(rc) >= minRestarts { + return true + } + } + return false + }, + FingerprintFn: func(obj map[string]any) string { + ns, name := metaNS(obj), metaName(obj) + owner := ResolveOwner(obj) + if owner.Name != "" { + name = owner.Name + } + // Hour bucket pairs with the 1h rate limit. After the + // limit expires, the bucket has rolled too — so the next + // CrashLoopBackOff produces a fresh fingerprint and a + // fresh Finding. Mirrors podOOMKilledMatcher. + hourBucket := time.Now().UTC().Truncate(time.Hour).Unix() + return fp("report_crash_loop", ns, name, fmt.Sprintf("h%d", hourBucket)) + }, + EnrichBlocks: crashLoopEnrichBlocks, + } +} + +// crashLoopEnrichBlocks builds the markdown blocks report_crash_loop +// attaches to the Finding. For every container currently waiting with +// restartCount ≥ 1 it emits, in order: +// +// - "** restart count: " +// - "** waiting reason: " (when state.waiting set) +// - "** termination reason: " (state.terminated) +// - "** termination reason: " (lastState.terminated) +// +// The legacy enricher additionally shipped the previous container's logs +// as a FileBlock via pod.get_logs(previous=True). EnrichBlocks is a pure +// (obj, oldObj) function with no K8s API access, so the logs file is +// omitted here — closing it requires a relay-side enricher (plan §5b +// stage 2.2). The markdown blocks alone match what the UI's +// per-aggregation_key rendering already expects for `report_crash_loop` +// findings. +func crashLoopEnrichBlocks(obj, _ map[string]any, ec EnrichContext) []EvidenceBlock { + if obj == nil { + return nil + } + var blocks []EvidenceBlock + for _, cs := range podContainerStatuses(obj) { + name, _ := cs["name"].(string) + st, _ := cs["state"].(map[string]any) + // "Crashed" predicate: state.waiting set AND restartCount >= 1. + if _, hasWaiting := st["waiting"].(map[string]any); !hasWaiting { + continue + } + rc, _ := cs["restartCount"].(float64) + if int(rc) < 1 { + continue + } + if name == "" { + continue + } + blocks = append(blocks, markdownBlock(fmt.Sprintf("*%s* restart count: %d", name, int(rc)))) + if w, _ := st["waiting"].(map[string]any); w != nil { + if reason, _ := w["reason"].(string); reason != "" { + blocks = append(blocks, markdownBlock(fmt.Sprintf("*%s* waiting reason: %s", name, reason))) + } + } + if t, _ := st["terminated"].(map[string]any); t != nil { + if reason, _ := t["reason"].(string); reason != "" { + blocks = append(blocks, markdownBlock(fmt.Sprintf("*%s* termination reason: %s", name, reason))) + } + } + if ls, _ := cs["lastState"].(map[string]any); ls != nil { + if t, _ := ls["terminated"].(map[string]any); t != nil { + if reason, _ := t["reason"].(string); reason != "" { + blocks = append(blocks, markdownBlock(fmt.Sprintf("*%s* termination reason: %s", name, reason))) + } + } + } + } + return blocks +} + +// markdownBlock builds the structured-data shape for MarkdownBlock. +// additional_info is nil for this enricher (only set for +// callback/header/list). +func markdownBlock(text string) EvidenceBlock { + return EvidenceBlock{ + "type": "markdown", + "data": text, + "additional_info": nil, + } +} + +// ------- Pod OOMKilled ------- + +// podOOMKilledMatcher implements PodOomKilledTrigger: fires when any +// container's lastState.terminated.reason == "OOMKilled". Fires whenever +// any container's lastState.terminated.reason == OOMKilled. +// Same kubewatch oldObj/obj pointer-aliasing problem as pod_crash_loop — +// the previous transition gate (`prev[name] != obj[name]`) never tripped +// because oldObj is the same snapshot as obj. We rely on the 1h rate +// limit + hour-bucket fingerprint to dedupe: at most one Finding per +// (owner, hour-bucket), so a Pod stuck OOMing produces ~1 fire/hour. +func podOOMKilledMatcher() MatcherSpec { + return MatcherSpec{ + Name: "pod_oom_killed", + Kind: "Pod", + Operations: []string{"update"}, + AggregationKey: "pod_oom_killer_enricher", + Priority: "HIGH", + FindingType: "issue", + RateLimit: time.Hour, + Predicate: func(obj, _ map[string]any) bool { + for _, ts := range oomKilledFinishedAts(obj) { + if ts != "" { + return true + } + } + return false + }, + FingerprintFn: func(obj map[string]any) string { + ns, name := metaNS(obj), metaName(obj) + owner := ResolveOwner(obj) + if owner.Name != "" { + name = owner.Name + } + // Hour bucket pairs with the 1h rate limit. After the limit + // expires, the bucket has rolled too — so the next OOM + // produces a fresh fingerprint and a fresh Finding. + hourBucket := time.Now().UTC().Truncate(time.Hour).Unix() + return fp("pod_oom_killer_enricher", ns, name, fmt.Sprintf("h%d", hourBucket)) + }, + EnrichBlocks: oomKilledEnrichBlocks, + } +} + +// oomKilledEnrichBlocks builds the TableBlock pod_oom_killer_enricher +// attaches to the Finding: pod / namespace / node + the OOM-killed +// container's name, memory requests/limits, and +// terminated.startedAt/finishedAt timestamps. +// +// The legacy enricher additionally fetched the Node and reported +// "Node allocated memory" as a row. We can't reach the K8s API from +// EnrichBlocks (it's a pure (obj, oldObj) function), so that row is +// omitted here — the caller still gets every Pod-derivable field. +// Closing that gap requires a relay-side enricher (plan §5b stage 2.2); +// for the trigger-emitted Finding, the rest of the table is enough for +// the UI's existing per-aggregation_key rendering. +func oomKilledEnrichBlocks(obj, _ map[string]any, ec EnrichContext) []EvidenceBlock { + if obj == nil { + return nil + } + cs := mostRecentOOMKilledContainerStatus(obj) + if cs == nil { + return nil + } + rows := [][]string{ + {"Pod", metaName(obj)}, + {"Namespace", metaNS(obj)}, + } + if node := podNodeName(obj); node != "" { + rows = append(rows, []string{"Node Name", node}) + } + cName, _ := cs["name"].(string) + if cName != "" { + rows = append(rows, []string{"Container name", cName}) + req, lim := containerMemoryResourcesMB(obj, cName) + memReq := "No request" + if req > 0 { + memReq = fmt.Sprintf("%dMB request", req) + } + memLim := "No limit" + if lim > 0 { + memLim = fmt.Sprintf("%dMB limit", lim) + } + rows = append(rows, []string{"Container memory", memReq + ", " + memLim}) + } + // Pull timestamps from whichever terminated state the most-recent-OOM + // scan picked (state preferred over lastState — same precedence + // pod_most_recent_oom_killed_container applies). + if t, _ := containerOOMTermination(cs); t != nil { + if v, _ := t["startedAt"].(string); v != "" { + rows = append(rows, []string{"Container started at", v}) + } + if v, _ := t["finishedAt"].(string); v != "" { + rows = append(rows, []string{"Container finished at", v}) + } + } + + rowsAny := make([]any, len(rows)) + for i, r := range rows { + rowsAny[i] = []any{r[0], r[1]} + } + return []EvidenceBlock{{ + "type": "table", + "data": map[string]any{ + "table_name": "*Pod and Node OOMKilled data*", + "headers": []any{"field", "value"}, + "rows": rowsAny, + "column_renderers": map[string]any{}, + }, + "additional_info": nil, + }} +} + +// ------- Image pull backoff ------- + +// imagePullBackoffMatcher fires when any container is currently in +// ImagePullBackOff or ErrImagePull. Same kubewatch pointer-aliasing +// caveat as pod_crash_loop — we can't rely on oldObj→obj transition +// detection. The fingerprint (`owner, image`) dedupes: distinct bad +// images each fire once per 10-min window. +func imagePullBackoffMatcher() MatcherSpec { + return MatcherSpec{ + Name: "image_pull_backoff", + Kind: "Pod", + Operations: []string{"update"}, + AggregationKey: "image_pull_backoff_reporter", + Priority: "MEDIUM", + FindingType: "issue", + RateLimit: 10 * time.Minute, + Predicate: func(obj, _ map[string]any) bool { + return len(containersInImagePullBackoff(obj)) > 0 + }, + FingerprintFn: func(obj map[string]any) string { + ns, name := metaNS(obj), metaName(obj) + owner := ResolveOwner(obj) + if owner.Name != "" { + name = owner.Name + } + // Include the bad image — different bad images on the same + // workload should be distinct Findings (operator just typo'd + // one container, the rest are fine). + image := firstFailingImage(obj) + return fp("image_pull_backoff_reporter", ns, name, image) + }, + EnrichBlocks: imagePullBackoffEnrichBlocks, + } +} + +// imagePullBackoffEnrichBlocks builds the HeaderBlock + MarkdownBlock pair +// image_pull_backoff_reporter attaches per failing container: +// +// - "ImagePullBackOff in container " (header) +// - "*Image:* " (markdown) +// +// The legacy enricher additionally called the K8s Events API and ran an +// ImagePullBackoffInvestigator over Warning/Failed events to classify the +// reason (RepoDoesntExist / NotAuthorized / ImageDoesntExist / TagNotFound) +// and emit a "*Reason:* X" or "*Possible reasons:* …" markdown. +// EnrichBlocks is a pure (obj, oldObj) function with no API access, so +// the investigator block is omitted here — closing it requires a +// relay-side enricher (plan §5b stage 2.2). The header + image lines +// alone match what the UI's per-aggregation_key rendering already expects. +func imagePullBackoffEnrichBlocks(obj, _ map[string]any, ec EnrichContext) []EvidenceBlock { + if obj == nil { + return nil + } + var blocks []EvidenceBlock + for _, cs := range podContainerStatuses(obj) { + st, _ := cs["state"].(map[string]any) + w, _ := st["waiting"].(map[string]any) + if w == nil { + continue + } + reason, _ := w["reason"].(string) + // Both ImagePullBackOff and ErrImagePull count (same as + // get_image_pull_backoff_container_statuses). The matcher's + // predicate uses the same set, so the enricher must too — + // otherwise the trigger fires with no blocks. + if reason != "ImagePullBackOff" && reason != "ErrImagePull" { + continue + } + name, _ := cs["name"].(string) + image, _ := cs["image"].(string) + if name == "" { + continue + } + blocks = append(blocks, + headerBlock(fmt.Sprintf("ImagePullBackOff in container %s", name)), + markdownBlock(fmt.Sprintf("*Image:* %s", image)), + ) + } + return blocks +} + +// headerBlock builds the structured-data shape for HeaderBlock. +// additional_info is nil — only set for callback/list blocks. +func headerBlock(text string) EvidenceBlock { + return EvidenceBlock{ + "type": "header", + "data": text, + "additional_info": nil, + } +} + +// ------- Job failure (transition) ------- + +// jobFailureMatcher implements JobFailedTrigger: fires only on the +// transition into Failed (the new obj has a +// `status.conditions[].type=Failed` and the old obj did not). Without +// the transition gate we'd fire repeatedly for as long as the failed +// Job lingers in the cluster. +func jobFailureMatcher() MatcherSpec { + return MatcherSpec{ + Name: "job_failure", + Kind: "Job", + Operations: []string{"update"}, + AggregationKey: "job_failure", + Priority: "MEDIUM", + FindingType: "issue", + RateLimit: 0, // terminal — fingerprint by UID is enough + Predicate: func(obj, oldObj map[string]any) bool { + return jobHasFailedCondition(obj) && !jobHasFailedCondition(oldObj) + }, + FingerprintFn: func(obj map[string]any) string { + ns := metaNS(obj) + uid := metaUID(obj) + return fp("job_failure", ns, uid) + }, + } +} + +// ------- Node NotReady (transition) ------- + +// nodeNotReadyMatcher fires when a Node's Ready condition transitions +// from True to False. Without the transition gate, a permanently-broken +// Node would re-fire every kubelet heartbeat. +func nodeNotReadyMatcher() MatcherSpec { + return MatcherSpec{ + Name: "node_not_ready", + Kind: "Node", + Operations: []string{"update"}, + AggregationKey: "node_not_ready", + Priority: "HIGH", + FindingType: "issue", + RateLimit: 0, // transition-gated, no need + Predicate: func(obj, oldObj map[string]any) bool { + return nodeReadyStatus(obj) == "False" && nodeReadyStatus(oldObj) != "False" + }, + FingerprintFn: func(obj map[string]any) string { + name := metaName(obj) + // Include lastTransitionTime so a flapping Node produces + // distinct Findings per transition rather than one forever. + ts := nodeReadyLastTransition(obj) + return fp("node_not_ready", name, ts) + }, + } +} + +// ------- Warning Event ------- + +// warningEventMatcher fires for K8s Event resources of type=Warning. +// Emits aggregation_key "Kubernetes Warning Event" (literal string with +// capitalization). +// +// Requires kubewatch's chart to subscribe to events +// (k8s-agent/charts/nudgebee-agent/values.yaml has `event: true` at +// the resource block). Verified live before adding this matcher. +func warningEventMatcher() MatcherSpec { + return MatcherSpec{ + Name: "warning_event", + Kind: "Event", + Operations: []string{"create"}, + AggregationKey: "Kubernetes Warning Event", + Priority: "MEDIUM", + FindingType: "issue", + RateLimit: 5 * time.Minute, + Predicate: func(obj, _ map[string]any) bool { + t, _ := obj["type"].(string) + return t == "Warning" + }, + FingerprintFn: func(obj map[string]any) string { + // involvedObject (core/v1) or regarding (events.k8s.io/v1) + // is the resource the event describes. + io, _ := obj["involvedObject"].(map[string]any) + if io == nil { + io, _ = obj["regarding"].(map[string]any) + } + ioKind, _ := io["kind"].(string) + ioNS, _ := io["namespace"].(string) + ioName, _ := io["name"].(string) + reason, _ := obj["reason"].(string) + return fp("Kubernetes Warning Event", ioKind, ioNS, ioName, reason) + }, + } +} + +// ------- Babysitter (config-change with diff) ------- + +// babysitterChangeMatcher implements resource_babysitter. Fires +// on UPDATE when the diff between obj and oldObj contains at least one +// monitored field (default: "spec" + sub-paths) that isn't in the +// omitted list (status, metadata.generation, .resourceVersion, +// .managedFields). Emits aggregation_key +// "ConfigurationChange/KubernetesResource/Change" +// (FindingAggregationKey.CONFIGURATION_CHANGE_KUBERNETES_RESOURCE_CHANGE). +// +// Unlike the "drop without diff body is useless" concern flagged in +// stage-2.1 planning, this matcher computes the diff in the agent and +// attaches it as a `markdown` evidence block via EnrichBlocks. The +// Finding therefore carries the actual change set on its own — no +// server-side enricher needed. +func babysitterChangeMatcher(kind string) MatcherSpec { + diffOpt := DefaultSpecDiffOptions() + return MatcherSpec{ + Name: "babysitter_" + strings.ToLower(kind), + Kind: kind, + Operations: []string{"update"}, + AggregationKey: "ConfigurationChange/KubernetesResource/Change", + Priority: "INFO", + FindingType: "configuration_change", + // Each spec change has its own resourceVersion → its own + // fingerprint → no rate-limit needed for dedup. We do set a + // short rate-limit to absorb the rare spurious double-fire + // (kubewatch occasionally re-delivers the same event). + RateLimit: 30 * time.Second, + Predicate: func(obj, oldObj map[string]any) bool { + if oldObj == nil { + return false + } + diffs := ComputeSpecDiff(obj, oldObj, diffOpt) + return len(diffs) > 0 + }, + FingerprintFn: func(obj map[string]any) string { + ns := metaNS(obj) + name := metaName(obj) + // Include resourceVersion so each distinct spec change gets + // its own Finding (Plan agent: "include obj.metadata. + // resourceVersion so each spec change is a distinct + // finding"). + meta, _ := obj["metadata"].(map[string]any) + rv, _ := meta["resourceVersion"].(string) + return fp("ConfigurationChange/KubernetesResource/Change", ns, name, rv) + }, + EnrichBlocks: func(obj, oldObj map[string]any, _ EnrichContext) []EvidenceBlock { + diffs := ComputeSpecDiff(obj, oldObj, diffOpt) + if len(diffs) == 0 { + return nil + } + // Emit the `type: "diff"` block — the only shape the UI + // renders as a side-by-side YAML diff. KubernetesTable2.jsx:1184-1199 + // filters on type==='diff' and feeds data.old/data.new to the + // CodeMirrorDiffViewer; any other block ("markdown", etc.) shows + // "No diff available." + return []EvidenceBlock{ + BuildKubernetesDiffBlock(obj, oldObj, kind, diffs), + } + }, + } +} + +// -------- helpers -------- + +func podContainerStatuses(obj map[string]any) []map[string]any { + st, _ := obj["status"].(map[string]any) + if st == nil { + return nil + } + all := []map[string]any{} + for _, key := range []string{"containerStatuses", "initContainerStatuses", "ephemeralContainerStatuses"} { + raw, _ := st[key].([]any) + for _, item := range raw { + cs, _ := item.(map[string]any) + if cs != nil { + all = append(all, cs) + } + } + } + return all +} + +func firstFailingImage(obj map[string]any) string { + for _, cs := range podContainerStatuses(obj) { + st, _ := cs["state"].(map[string]any) + w, _ := st["waiting"].(map[string]any) + if w == nil { + continue + } + reason, _ := w["reason"].(string) + if reason == "ImagePullBackOff" || reason == "ErrImagePull" { + img, _ := cs["image"].(string) + return img + } + } + return "" +} + +func jobHasFailedCondition(obj map[string]any) bool { + if obj == nil { + return false + } + st, _ := obj["status"].(map[string]any) + if st == nil { + return false + } + conds, _ := st["conditions"].([]any) + for _, c := range conds { + cm, _ := c.(map[string]any) + t, _ := cm["type"].(string) + s, _ := cm["status"].(string) + if t == "Failed" && s == "True" { + return true + } + } + return false +} + +func nodeReadyStatus(obj map[string]any) string { + if obj == nil { + return "" + } + st, _ := obj["status"].(map[string]any) + if st == nil { + return "" + } + conds, _ := st["conditions"].([]any) + for _, c := range conds { + cm, _ := c.(map[string]any) + t, _ := cm["type"].(string) + if t == "Ready" { + s, _ := cm["status"].(string) + return s + } + } + return "" +} + +func nodeReadyLastTransition(obj map[string]any) string { + st, _ := obj["status"].(map[string]any) + conds, _ := st["conditions"].([]any) + for _, c := range conds { + cm, _ := c.(map[string]any) + t, _ := cm["type"].(string) + if t == "Ready" { + ts, _ := cm["lastTransitionTime"].(string) + return ts + } + } + return "" +} + +func metaName(obj map[string]any) string { + m, _ := obj["metadata"].(map[string]any) + n, _ := m["name"].(string) + return n +} + +func metaNS(obj map[string]any) string { + m, _ := obj["metadata"].(map[string]any) + n, _ := m["namespace"].(string) + return n +} + +func metaUID(obj map[string]any) string { + m, _ := obj["metadata"].(map[string]any) + u, _ := m["uid"].(string) + return u +} + +// fp produces a stable sha256 hex of joined fields. Used by FingerprintFn +// so all matchers produce same-shape fingerprints (inspectable, hex-safe). +func fp(parts ...string) string { + h := sha256.Sum256([]byte(strings.Join(parts, ":"))) + return hex.EncodeToString(h[:]) +} + +// oomKilledFinishedAts returns {container_name: lastState.terminated.finishedAt} +// for every container whose most recent termination was OOMKilled. The +// pod_oom_killed predicate uses the presence of any non-empty entry as +// the fire signal; we keep the timestamp on the value so the enricher +// path can differentiate which container OOMed when a Pod has several. +func oomKilledFinishedAts(obj map[string]any) map[string]string { + out := map[string]string{} + if obj == nil { + return out + } + for _, cs := range podContainerStatuses(obj) { + name, _ := cs["name"].(string) + ls, _ := cs["lastState"].(map[string]any) + term, _ := ls["terminated"].(map[string]any) + if term == nil { + continue + } + if reason, _ := term["reason"].(string); reason != "OOMKilled" { + continue + } + ts, _ := term["finishedAt"].(string) + out[name] = ts // empty ts is fine; oldObj will also have empty ts → no-op + } + return out +} + +// mostRecentOOMKilledContainerStatus walks every container status +// (regular + init) and returns the one whose most recent termination +// was OOMKilled with the highest finishedAt timestamp. +// state.terminated is preferred over lastState.terminated (a container +// currently in OOMKilled state is a fresher signal than one that recovered). +// Returns nil when no container in the pod was OOMKilled. +func mostRecentOOMKilledContainerStatus(obj map[string]any) map[string]any { + var best map[string]any + var bestTS string + for _, cs := range podContainerStatuses(obj) { + t, ts := containerOOMTermination(cs) + if t == nil { + continue + } + if best == nil || ts > bestTS { + best, bestTS = cs, ts + } + } + return best +} + +// containerOOMTermination returns (terminated_state, finishedAt) when the +// container's most recent termination was OOMKilled. state wins over +// lastState (current OOM is fresher than recovered OOM). Returns (nil, "") +// when neither side has an OOMKilled terminated state. +func containerOOMTermination(cs map[string]any) (map[string]any, string) { + if t := terminatedIfOOM(cs["state"]); t != nil { + ts, _ := t["finishedAt"].(string) + return t, ts + } + if t := terminatedIfOOM(cs["lastState"]); t != nil { + ts, _ := t["finishedAt"].(string) + return t, ts + } + return nil, "" +} + +func terminatedIfOOM(v any) map[string]any { + st, _ := v.(map[string]any) + if st == nil { + return nil + } + t, _ := st["terminated"].(map[string]any) + if t == nil { + return nil + } + if reason, _ := t["reason"].(string); reason != "OOMKilled" { + return nil + } + return t +} + +// podNodeName returns spec.nodeName, or "" when unset (pod not yet scheduled). +func podNodeName(obj map[string]any) string { + spec, _ := obj["spec"].(map[string]any) + n, _ := spec["nodeName"].(string) + return n +} + +// containerMemoryResourcesMB walks spec.containers (and initContainers / +// ephemeralContainers) for the named container and returns (requests_mb, +// limits_mb). Either or both can be 0 when the container declares no +// requests/limits. +func containerMemoryResourcesMB(obj map[string]any, containerName string) (int, int) { + spec, _ := obj["spec"].(map[string]any) + if spec == nil { + return 0, 0 + } + for _, key := range []string{"containers", "initContainers", "ephemeralContainers"} { + raw, _ := spec[key].([]any) + for _, item := range raw { + c, _ := item.(map[string]any) + if c == nil { + continue + } + if name, _ := c["name"].(string); name != containerName { + continue + } + res, _ := c["resources"].(map[string]any) + req, _ := res["requests"].(map[string]any) + lim, _ := res["limits"].(map[string]any) + reqMem, _ := req["memory"].(string) + limMem, _ := lim["memory"].(string) + return parseMemMB(reqMem), parseMemMB(limMem) + } + } + return 0, 0 +} + +// parseMemMB parses a Kubernetes memory quantity ("128Mi", "1Gi", "512M", +// raw bytes, …) into MB (1024*1024 bytes). Empty / unparseable input → 0 +// (the row just renders as "No request"). +func parseMemMB(s string) int { + bytes := parseMemBytes(s) + return int(bytes / (1024 * 1024)) +} + +func parseMemBytes(s string) int64 { + s = strings.TrimSpace(s) + if s == "" { + return 0 + } + // Two-letter binary suffixes (Ki, Mi, Gi, …) take precedence over the + // single-letter SI suffixes since "Mi" ends in "i" but contains "M". + binary := map[string]int64{ + "Ki": 1024, + "Mi": 1024 * 1024, + "Gi": 1024 * 1024 * 1024, + "Ti": 1024 * 1024 * 1024 * 1024, + "Pi": 1024 * 1024 * 1024 * 1024 * 1024, + "Ei": 1024 * 1024 * 1024 * 1024 * 1024 * 1024, + } + if len(s) > 2 { + if mult, ok := binary[s[len(s)-2:]]; ok { + return parseInt64(s[:len(s)-2]) * mult + } + } + si := map[byte]int64{ + 'k': 1000, + 'K': 1000, + 'M': 1000 * 1000, + 'G': 1000 * 1000 * 1000, + 'T': 1000 * 1000 * 1000 * 1000, + 'P': 1000 * 1000 * 1000 * 1000 * 1000, + 'E': 1000 * 1000 * 1000 * 1000 * 1000 * 1000, + } + if len(s) > 1 { + if mult, ok := si[s[len(s)-1]]; ok { + return parseInt64(s[:len(s)-1]) * mult + } + } + return parseInt64(s) +} + +func parseInt64(s string) int64 { + var n int64 + var seenDigit bool + for _, c := range s { + switch { + case c >= '0' && c <= '9': + n = n*10 + int64(c-'0') + seenDigit = true + case c == '.': + // truncate fractional part — equivalent to int(float(x)) + if !seenDigit { + return 0 + } + return n + default: + return 0 + } + } + if !seenDigit { + return 0 + } + return n +} + +// containersInImagePullBackoff returns the set of container names whose +// current state is waiting with reason ImagePullBackOff or ErrImagePull. +func containersInImagePullBackoff(obj map[string]any) map[string]bool { + out := map[string]bool{} + if obj == nil { + return out + } + for _, cs := range podContainerStatuses(obj) { + name, _ := cs["name"].(string) + st, _ := cs["state"].(map[string]any) + w, _ := st["waiting"].(map[string]any) + if w == nil { + continue + } + reason, _ := w["reason"].(string) + if reason == "ImagePullBackOff" || reason == "ErrImagePull" { + out[name] = true + } + } + return out +} diff --git a/runner/pkg/triggers/predicates_test.go b/runner/pkg/triggers/predicates_test.go new file mode 100644 index 0000000..95c4608 --- /dev/null +++ b/runner/pkg/triggers/predicates_test.go @@ -0,0 +1,943 @@ +package triggers + +import ( + "encoding/json" + "strings" + "testing" + "time" +) + +// asObj is a tiny helper so test fixtures can be inline JSON strings +// rather than verbose map[string]any literals. The tests are +// fixture-heavy (one per condition); JSON keeps them readable + close +// to what kubewatch actually sends. +func asObj(t *testing.T, s string) map[string]any { + t.Helper() + var m map[string]any + if err := json.Unmarshal([]byte(s), &m); err != nil { + t.Fatalf("test fixture parse: %v\n%s", err, s) + } + return m +} + +// ---------- pod_crash_loop ---------- + +func TestPodCrashLoop_FiresOnRestartCountIncrease(t *testing.T) { + // Transition: oldObj had restartCount=4, new obj has 5 → fire. + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":4, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5, + "state":{"waiting":{"reason":"CrashLoopBackOff","message":"back-off"}}} + ]} + }`) + m := podCrashLoopMatcher() + if !m.Predicate(newPod, oldPod) { + t.Fatal("predicate should fire when restartCount goes up while in CrashLoopBackOff") + } + if m.FingerprintFn(newPod) == "" { + t.Error("fingerprint must be non-empty") + } +} + +func TestPodCrashLoop_FiresOnResyncAndCreate(t *testing.T) { + // kubewatch's UpdateFunc shares one closure-scoped Event variable + // (kubewatch/pkg/controller/controller.go:787) and the K8s informer + // passes old/new as references that often share underlying memory, so + // every kubewatch UPDATE has obj == oldObj on the wire. The predicate + // must fire on the bare Pod state regardless; the engine's rate-limit + // + restartCount-bucket fingerprint dedupes resync re-emits. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + if !podCrashLoopMatcher().Predicate(pod, pod) { + t.Error("predicate must fire on a CrashLooping Pod even when oldObj==obj (kubewatch's wire shape)") + } + if !podCrashLoopMatcher().Predicate(pod, nil) { + t.Error("predicate must fire on a CrashLooping Pod even when oldObj==nil (CREATE / first observation)") + } +} + +func TestPodCrashLoop_DropsBelowRestartThreshold(t *testing.T) { + // Pod just transitioned 0→1 restart. Below default minRestarts=2 → + // suppressed even though restartCount went up. + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":0, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":1, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + if podCrashLoopMatcher().Predicate(newPod, oldPod) { + t.Error("predicate should not fire below restart threshold (1 < 2)") + } +} + +func TestPodCrashLoop_DropsForOtherWaitingReasons(t *testing.T) { + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":4, + "state":{"waiting":{"reason":"ContainerCreating"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5, + "state":{"waiting":{"reason":"ContainerCreating"}}} + ]} + }`) + if podCrashLoopMatcher().Predicate(newPod, oldPod) { + t.Error("ContainerCreating must not fire crash_loop") + } +} + +func TestPodCrashLoop_FingerprintStableWithinHour(t *testing.T) { + // A Pod stuck in CrashLoopBackOff produces ~1 Finding per hour. The + // fingerprint pairs with a 1h rate limit and an hour-bucket, so + // successive restarts in the same wall-clock hour collapse to one + // fingerprint (and the rate limiter suppresses repeats). + mk := func(rc int) map[string]any { + return asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":`+itoa(rc)+`, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + } + m := podCrashLoopMatcher() + if m.FingerprintFn(mk(2)) != m.FingerprintFn(mk(7)) { + t.Error("restartCount must not affect fingerprint within an hour") + } + if m.FingerprintFn(mk(2)) != m.FingerprintFn(mk(100)) { + t.Error("restartCount must not affect fingerprint within an hour (rc=100 case)") + } +} + +// ---------- pod_crash_loop enrichment ---------- + +func TestCrashLoopEnrichBlocks_BuildsMarkdownPerCrashedContainer(t *testing.T) { + // For each container with state.waiting + restartCount ≥ 1, emit + // markdown blocks for restart count, waiting reason, and (when set) + // state.terminated and lastState.terminated reasons. The trigger- + // emitted Finding carries the same evidence the legacy playbook + // produced (minus the previous-logs FileBlock, which needs a K8s + // API call and is deferred to a relay-side enricher). + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5, + "state":{"waiting":{"reason":"CrashLoopBackOff","message":"back-off"}}, + "lastState":{"terminated":{"reason":"Error","exitCode":1}}} + ]} + }`) + blocks := crashLoopEnrichBlocks(pod, nil, EnrichContext{}) + want := []string{ + "*app* restart count: 5", + "*app* waiting reason: CrashLoopBackOff", + "*app* termination reason: Error", + } + if len(blocks) != len(want) { + t.Fatalf("blocks = %d; want %d (got %#v)", len(blocks), len(want), blocks) + } + for i, b := range blocks { + if b["type"] != "markdown" { + t.Errorf("block[%d].type = %v; want markdown", i, b["type"]) + } + if b["data"] != want[i] { + t.Errorf("block[%d].data = %q; want %q", i, b["data"], want[i]) + } + } +} + +func TestCrashLoopEnrichBlocks_StateAndLastStateBothPresent(t *testing.T) { + // Emit two separate "termination reason" markdowns when both + // state.terminated and lastState.terminated are set — state first, + // then lastState. The resulting Finding evidence reads chronologically. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":3, + "state":{ + "waiting":{"reason":"CrashLoopBackOff"}, + "terminated":{"reason":"Error","exitCode":1} + }, + "lastState":{"terminated":{"reason":"OOMKilled","exitCode":137}}} + ]} + }`) + blocks := crashLoopEnrichBlocks(pod, nil, EnrichContext{}) + if len(blocks) != 4 { + t.Fatalf("blocks = %d; want 4 (count, waiting, state.term, lastState.term)", len(blocks)) + } + if blocks[2]["data"] != "*app* termination reason: Error" { + t.Errorf("block[2] = %q; want state.terminated reason first", blocks[2]["data"]) + } + if blocks[3]["data"] != "*app* termination reason: OOMKilled" { + t.Errorf("block[3] = %q; want lastState.terminated reason second", blocks[3]["data"]) + } +} + +func TestCrashLoopEnrichBlocks_SkipsNonCrashedContainers(t *testing.T) { + // Multi-container pod: one container crashing, one running, one + // init-container completed. Only the crashing one produces blocks — + // running and completed containers are noise for a crash report. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{ + "containerStatuses":[ + {"name":"app","restartCount":2, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}}, + {"name":"sidecar","restartCount":0, + "state":{"running":{"startedAt":"2026-05-08T03:00:00Z"}}} + ], + "initContainerStatuses":[ + {"name":"init-db","restartCount":0, + "state":{"terminated":{"reason":"Completed","exitCode":0}}} + ] + } + }`) + blocks := crashLoopEnrichBlocks(pod, nil, EnrichContext{}) + for _, b := range blocks { + data, _ := b["data"].(string) + if !strings.Contains(data, "*app*") { + t.Errorf("unexpected block for non-crashed container: %q", data) + } + } + if len(blocks) != 2 { + t.Errorf("blocks = %d; want 2 (count + waiting reason for app only)", len(blocks)) + } +} + +func TestCrashLoopEnrichBlocks_RestartCountZeroSkipped(t *testing.T) { + // restartCount >= 1 — a container in waiting with 0 restarts is + // freshly starting up, not crashing. Skip it. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":0, + "state":{"waiting":{"reason":"ContainerCreating"}}} + ]} + }`) + if got := crashLoopEnrichBlocks(pod, nil, EnrichContext{}); got != nil { + t.Errorf("crashLoopEnrichBlocks = %v; want nil for restartCount=0", got) + } +} + +func TestCrashLoopEnrichBlocks_NoWaitingState(t *testing.T) { + // Container is running again (state.running set) — even if it has + // restart history, there's nothing currently waiting to crash-report. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5, + "state":{"running":{"startedAt":"2026-05-08T03:00:00Z"}}} + ]} + }`) + if got := crashLoopEnrichBlocks(pod, nil, EnrichContext{}); got != nil { + t.Errorf("crashLoopEnrichBlocks = %v; want nil when no waiting state", got) + } +} + +// ---------- pod_oom_killed ---------- + +func TestPodOOMKilled_FiresWhenNewOOMObserved(t *testing.T) { + // Container OOMed at a new finishedAt timestamp the previous obj + // didn't carry → fresh OOM event → fire. + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":1, + "lastState":{"terminated":{"reason":"OOMKilled","exitCode":137,"finishedAt":"2026-05-07T13:00:00Z"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":2, + "state":{"running":{"startedAt":"2026-05-08T03:00:00Z"}}, + "lastState":{"terminated":{"reason":"OOMKilled","exitCode":137,"finishedAt":"2026-05-08T02:59:30Z"}}} + ]} + }`) + if !podOOMKilledMatcher().Predicate(newPod, oldPod) { + t.Error("new OOM (different finishedAt) must fire") + } +} + +func TestPodOOMKilled_FiresOnResyncAndCreate(t *testing.T) { + // kubewatch's wire shape has obj==oldObj; resync de-dup is the rate + // limiter's job, not the predicate's. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":1, + "lastState":{"terminated":{"reason":"OOMKilled","exitCode":137,"finishedAt":"2026-05-07T13:00:00Z"}}} + ]} + }`) + if !podOOMKilledMatcher().Predicate(pod, pod) { + t.Error("predicate must fire when obj==oldObj on a Pod with an OOMKilled lastState") + } + if !podOOMKilledMatcher().Predicate(pod, nil) { + t.Error("predicate must fire on first observation (oldObj=nil)") + } +} + +func TestPodOOMKilled_DropsForOtherTerminationReasons(t *testing.T) { + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":0, + "lastState":{"terminated":{"reason":"Completed","exitCode":0,"finishedAt":"2026-05-07T13:00:00Z"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":1, + "lastState":{"terminated":{"reason":"Completed","exitCode":0,"finishedAt":"2026-05-08T13:00:00Z"}}} + ]} + }`) + if podOOMKilledMatcher().Predicate(newPod, oldPod) { + t.Error("Completed exit must not fire OOM matcher") + } +} + +// ---------- pod_oom_killed enrichment ---------- + +func TestOOMKilledEnrichBlocks_BuildsTableFromPodSpec(t *testing.T) { + // The trigger-emitted Finding must carry a TableBlock with pod, ns, + // node, container name, container memory request/limit, and + // terminated.startedAt/finishedAt — every field extractable without + // a Node API call. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "spec":{ + "nodeName":"ip-10-0-0-1", + "containers":[ + {"name":"app","resources":{"requests":{"memory":"128Mi"},"limits":{"memory":"256Mi"}}} + ] + }, + "status":{"containerStatuses":[ + {"name":"app","restartCount":2, + "lastState":{"terminated":{ + "reason":"OOMKilled","exitCode":137, + "startedAt":"2026-05-08T02:30:00Z", + "finishedAt":"2026-05-08T02:59:30Z" + }}} + ]} + }`) + blocks := oomKilledEnrichBlocks(pod, nil, EnrichContext{}) + if len(blocks) != 1 { + t.Fatalf("blocks = %d; want 1", len(blocks)) + } + b := blocks[0] + if b["type"] != "table" { + t.Fatalf("type = %v; want table", b["type"]) + } + data, _ := b["data"].(map[string]any) + if data["table_name"] != "*Pod and Node OOMKilled data*" { + t.Errorf("table_name = %v", data["table_name"]) + } + headers, _ := data["headers"].([]any) + if len(headers) != 2 || headers[0] != "field" || headers[1] != "value" { + t.Errorf("headers = %v; want [field value]", headers) + } + want := map[string]string{ + "Pod": "web-0", + "Namespace": "prod", + "Node Name": "ip-10-0-0-1", + "Container name": "app", + "Container memory": "128MB request, 256MB limit", + "Container started at": "2026-05-08T02:30:00Z", + "Container finished at": "2026-05-08T02:59:30Z", + } + got := map[string]string{} + rows, _ := data["rows"].([]any) + for _, r := range rows { + row, _ := r.([]any) + if len(row) != 2 { + t.Fatalf("row shape = %v; want [field, value]", row) + } + k, _ := row[0].(string) + v, _ := row[1].(string) + got[k] = v + } + for k, v := range want { + if got[k] != v { + t.Errorf("row %q = %q; want %q", k, got[k], v) + } + } +} + +func TestOOMKilledEnrichBlocks_EmptyWhenNoOOMContainer(t *testing.T) { + // Pod restarted from a non-OOM termination (Completed) → nothing for + // the enricher to surface. Returning nil keeps the matcher cheap when + // it fires for a different reason later (it shouldn't, but defensive). + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","lastState":{"terminated":{"reason":"Completed","exitCode":0}}} + ]} + }`) + if got := oomKilledEnrichBlocks(pod, nil, EnrichContext{}); got != nil { + t.Errorf("oomKilledEnrichBlocks = %v; want nil for non-OOM termination", got) + } +} + +func TestOOMKilledEnrichBlocks_PrefersStateTerminatedOverLastState(t *testing.T) { + // state.terminated is the **current** OOM (container hasn't restarted + // yet); lastState.terminated is a stale OOM that the container + // recovered from. pod_most_recent_oom_killed_container picks state + // first — the table reflects the live OOM. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app", + "state":{"terminated":{"reason":"OOMKilled","finishedAt":"2026-05-08T03:00:00Z"}}, + "lastState":{"terminated":{"reason":"OOMKilled","finishedAt":"2026-05-07T13:00:00Z"}}} + ]} + }`) + blocks := oomKilledEnrichBlocks(pod, nil, EnrichContext{}) + rows, _ := blocks[0]["data"].(map[string]any)["rows"].([]any) + for _, r := range rows { + row, _ := r.([]any) + k, _ := row[0].(string) + v, _ := row[1].(string) + if k == "Container finished at" && v != "2026-05-08T03:00:00Z" { + t.Errorf("Container finished at = %q; want state.terminated value", v) + } + } +} + +func TestOOMKilledEnrichBlocks_PicksMostRecentAcrossContainers(t *testing.T) { + // Two containers OOMed at different times. Pick the most recent + // (highest finishedAt) so the table tells the operator about the + // freshest signal. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "spec":{"containers":[ + {"name":"app","resources":{"limits":{"memory":"256Mi"}}}, + {"name":"sidecar","resources":{"limits":{"memory":"128Mi"}}} + ]}, + "status":{"containerStatuses":[ + {"name":"app", + "lastState":{"terminated":{"reason":"OOMKilled","finishedAt":"2026-05-07T13:00:00Z"}}}, + {"name":"sidecar", + "lastState":{"terminated":{"reason":"OOMKilled","finishedAt":"2026-05-08T01:00:00Z"}}} + ]} + }`) + blocks := oomKilledEnrichBlocks(pod, nil, EnrichContext{}) + rows, _ := blocks[0]["data"].(map[string]any)["rows"].([]any) + got := map[string]string{} + for _, r := range rows { + row, _ := r.([]any) + k, _ := row[0].(string) + v, _ := row[1].(string) + got[k] = v + } + if got["Container name"] != "sidecar" { + t.Errorf("Container name = %q; want sidecar (most recent OOM)", got["Container name"]) + } + if !strings.Contains(got["Container memory"], "128MB limit") { + t.Errorf("memory row = %q; want sidecar's 128MB limit", got["Container memory"]) + } +} + +func TestOOMKilledEnrichBlocks_NoMemoryResources(t *testing.T) { + // Container declares no resources block at all — render + // "No request, No limit" in this case. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "spec":{"containers":[{"name":"app"}]}, + "status":{"containerStatuses":[ + {"name":"app","lastState":{"terminated":{"reason":"OOMKilled","finishedAt":"2026-05-08T01:00:00Z"}}} + ]} + }`) + blocks := oomKilledEnrichBlocks(pod, nil, EnrichContext{}) + rows, _ := blocks[0]["data"].(map[string]any)["rows"].([]any) + for _, r := range rows { + row, _ := r.([]any) + k, _ := row[0].(string) + v, _ := row[1].(string) + if k == "Container memory" && v != "No request, No limit" { + t.Errorf("Container memory = %q; want \"No request, No limit\"", v) + } + } +} + +func TestParseMemMB(t *testing.T) { + // Coverage of the units Kubernetes accepts in memory quantities. Mi + // and Gi are by far the most common — verify the binary suffix wins + // over the SI single-letter parse, otherwise "Mi" would resolve to + // the "M" branch (decimal MB instead of MiB) and the table would + // under-report by ~5%. + cases := []struct { + in string + out int + }{ + {"", 0}, + {"128Mi", 128}, + {"1Gi", 1024}, + {"512M", 488}, // 512_000_000 / 1024^2 = 488 + {"1G", 953}, // 1_000_000_000 / 1024^2 = 953 + {"104857600", 100}, // raw bytes → 100 MiB + {"4Ki", 0}, // 4096 bytes < 1 MiB → 0 + {"abc", 0}, // unparseable → 0 + {"512.5Mi", 512}, // fractional truncated (int(float(x))) + } + for _, tc := range cases { + if got := parseMemMB(tc.in); got != tc.out { + t.Errorf("parseMemMB(%q) = %d; want %d", tc.in, got, tc.out) + } + } +} + +// ---------- image_pull_backoff ---------- + +func TestImagePullBackoff_FiresOnTransitionIntoBackoff(t *testing.T) { + for _, reason := range []string{"ImagePullBackOff", "ErrImagePull"} { + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"registry/web:bad", + "state":{"waiting":{"reason":"ContainerCreating"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"registry/web:bad", + "state":{"waiting":{"reason":"`+reason+`"}}} + ]} + }`) + if !imagePullBackoffMatcher().Predicate(newPod, oldPod) { + t.Errorf("predicate did not fire on transition into reason=%s", reason) + } + } +} + +func TestImagePullBackoff_FiresOnResyncAndCreate(t *testing.T) { + // kubewatch's wire shape has obj==oldObj; resync de-dup is the rate + // limiter's job, not the predicate's. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"registry/web:bad", + "state":{"waiting":{"reason":"ImagePullBackOff"}}} + ]} + }`) + if !imagePullBackoffMatcher().Predicate(pod, pod) { + t.Error("predicate must fire when obj==oldObj on a Pod stuck in ImagePullBackOff") + } + if !imagePullBackoffMatcher().Predicate(pod, nil) { + t.Error("predicate must fire on first observation (oldObj=nil)") + } +} + +func TestImagePullBackoff_FingerprintIncludesImage(t *testing.T) { + // Same workload, different bad image → different finding. + mk := func(img string) map[string]any { + return asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"`+img+`", + "state":{"waiting":{"reason":"ImagePullBackOff"}}} + ]} + }`) + } + m := imagePullBackoffMatcher() + if m.FingerprintFn(mk("registry/web:bad-v1")) == m.FingerprintFn(mk("registry/web:bad-v2")) { + t.Error("different bad images must produce different fingerprints") + } +} + +// ---------- image_pull_backoff enrichment ---------- + +func TestImagePullBackoffEnrichBlocks_BuildsHeaderAndImageBlocks(t *testing.T) { + // For every container in ImagePullBackOff/ErrImagePull, emit a header + // with the container name and a markdown line with the image. The + // trigger-emitted Finding carries the same evidence the legacy + // playbook produced (minus the events-driven Investigator analysis, + // which needs a K8s API call and is deferred to a relay-side enricher). + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"registry/web:bad-v1", + "state":{"waiting":{"reason":"ImagePullBackOff","message":"back-off pulling image"}}} + ]} + }`) + blocks := imagePullBackoffEnrichBlocks(pod, nil, EnrichContext{}) + if len(blocks) != 2 { + t.Fatalf("blocks = %d; want 2 (header + image)", len(blocks)) + } + if blocks[0]["type"] != "header" || blocks[0]["data"] != "ImagePullBackOff in container app" { + t.Errorf("blocks[0] = %#v; want header for container app", blocks[0]) + } + if blocks[1]["type"] != "markdown" || blocks[1]["data"] != "*Image:* registry/web:bad-v1" { + t.Errorf("blocks[1] = %#v; want markdown with image", blocks[1]) + } +} + +func TestImagePullBackoffEnrichBlocks_AcceptsErrImagePull(t *testing.T) { + // ErrImagePull is the transient cousin of ImagePullBackOff (kubelet + // emits it on the first failure, before the backoff kicks in). + // get_image_pull_backoff_container_statuses accepts both. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"registry/web:bad", + "state":{"waiting":{"reason":"ErrImagePull"}}} + ]} + }`) + blocks := imagePullBackoffEnrichBlocks(pod, nil, EnrichContext{}) + if len(blocks) != 2 { + t.Errorf("ErrImagePull must produce blocks; got %d", len(blocks)) + } +} + +func TestImagePullBackoffEnrichBlocks_PerContainerMultiContainer(t *testing.T) { + // Two containers fail to pull, one runs fine. Two header/image pairs, + // nothing for the running container. Order matches container order. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"registry/web:bad", + "state":{"waiting":{"reason":"ImagePullBackOff"}}}, + {"name":"sidecar","image":"registry/log:ok", + "state":{"running":{"startedAt":"2026-05-08T03:00:00Z"}}}, + {"name":"agent","image":"registry/agent:bad", + "state":{"waiting":{"reason":"ErrImagePull"}}} + ]} + }`) + blocks := imagePullBackoffEnrichBlocks(pod, nil, EnrichContext{}) + if len(blocks) != 4 { + t.Fatalf("blocks = %d; want 4 (2 failing × header+markdown)", len(blocks)) + } + if blocks[0]["data"] != "ImagePullBackOff in container app" { + t.Errorf("blocks[0] = %v; want app header first", blocks[0]["data"]) + } + if blocks[2]["data"] != "ImagePullBackOff in container agent" { + t.Errorf("blocks[2] = %v; want agent header second", blocks[2]["data"]) + } +} + +func TestImagePullBackoffEnrichBlocks_SkipsOtherWaitingReasons(t *testing.T) { + // ContainerCreating, CrashLoopBackOff, etc. — not our concern. + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","image":"registry/web", + "state":{"waiting":{"reason":"CrashLoopBackOff"}}}, + {"name":"sidecar","image":"registry/log", + "state":{"waiting":{"reason":"ContainerCreating"}}} + ]} + }`) + if got := imagePullBackoffEnrichBlocks(pod, nil, EnrichContext{}); got != nil { + t.Errorf("imagePullBackoffEnrichBlocks = %v; want nil for non-IPB waiting reasons", got) + } +} + +func TestImagePullBackoffEnrichBlocks_NilPod(t *testing.T) { + if got := imagePullBackoffEnrichBlocks(nil, nil, EnrichContext{}); got != nil { + t.Errorf("nil obj must produce nil blocks; got %v", got) + } +} + +// ---------- job_failure ---------- + +func TestJobFailure_FiresOnTransitionToFailed(t *testing.T) { + oldJob := asObj(t, `{ + "metadata":{"name":"j","namespace":"ns","uid":"u-1"}, + "status":{"conditions":[]} + }`) + newJob := asObj(t, `{ + "metadata":{"name":"j","namespace":"ns","uid":"u-1"}, + "status":{"conditions":[ + {"type":"Failed","status":"True","reason":"BackoffLimitExceeded"} + ]} + }`) + if !jobFailureMatcher().Predicate(newJob, oldJob) { + t.Fatal("predicate should fire on transition to Failed=True") + } +} + +func TestJobFailure_DoesNotRefireWhilePersistentlyFailed(t *testing.T) { + // Job that's already failed shouldn't keep firing on every kubewatch + // update event. + persistent := asObj(t, `{ + "metadata":{"name":"j","namespace":"ns","uid":"u-1"}, + "status":{"conditions":[{"type":"Failed","status":"True"}]} + }`) + if jobFailureMatcher().Predicate(persistent, persistent) { + t.Error("predicate must not fire when oldObj already had Failed") + } +} + +// ---------- node_not_ready ---------- + +func TestNodeNotReady_FiresOnTransitionTrueToFalse(t *testing.T) { + oldNode := asObj(t, `{ + "metadata":{"name":"n1"}, + "status":{"conditions":[{"type":"Ready","status":"True"}]} + }`) + newNode := asObj(t, `{ + "metadata":{"name":"n1"}, + "status":{"conditions":[{"type":"Ready","status":"False","lastTransitionTime":"2026-05-07T13:00:00Z"}]} + }`) + if !nodeNotReadyMatcher().Predicate(newNode, oldNode) { + t.Error("predicate should fire on Ready True→False") + } +} + +func TestNodeNotReady_DoesNotRefireWhilePersistentlyNotReady(t *testing.T) { + notReady := asObj(t, `{ + "metadata":{"name":"n1"}, + "status":{"conditions":[{"type":"Ready","status":"False"}]} + }`) + if nodeNotReadyMatcher().Predicate(notReady, notReady) { + t.Error("predicate must not refire when oldObj was already NotReady") + } +} + +// ---------- warning_event ---------- + +func TestWarningEvent_FiresForWarningType(t *testing.T) { + ev := asObj(t, `{ + "type":"Warning", + "reason":"FailedScheduling", + "involvedObject":{"kind":"Pod","namespace":"prod","name":"web-0"} + }`) + if !warningEventMatcher().Predicate(ev, nil) { + t.Error("Warning Event must fire") + } +} + +func TestWarningEvent_DropsNormalType(t *testing.T) { + ev := asObj(t, `{ + "type":"Normal", + "reason":"Created", + "involvedObject":{"kind":"Pod","namespace":"prod","name":"web-0"} + }`) + if warningEventMatcher().Predicate(ev, nil) { + t.Error("Normal Event must not fire") + } +} + +// ---------- engine integration ---------- + +func TestEngine_FiresMultipleMatchersForSamePod(t *testing.T) { + // Pod is BOTH ImagePullBackOff (one container, just transitioned in) + // AND Crashlooping (another container, restartCount went up). Both + // matchers should fire — the engine doesn't stop at the first match. + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"sidecar","image":"r/sidecar:bad", + "state":{"waiting":{"reason":"ContainerCreating"}}}, + {"name":"app","restartCount":4, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"sidecar","image":"r/sidecar:bad", + "state":{"waiting":{"reason":"ImagePullBackOff"}}}, + {"name":"app","restartCount":5, + "state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)) + matches := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: newPod, OldObj: oldPod}) + names := matchNames(matches) + if !contains(names, "pod_crash_loop") || !contains(names, "image_pull_backoff") { + t.Errorf("expected both pod_crash_loop and image_pull_backoff to fire; got %v", names) + } +} + +func TestEngine_RateLimitSuppressesRepeats(t *testing.T) { + // Two identical transitions back-to-back. First one fires, second is + // rate-limit-suppressed (10-min window per fingerprint). + oldPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":4,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + newPod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":5,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)) + first := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: newPod, OldObj: oldPod}) + second := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: newPod, OldObj: oldPod}) + if !contains(matchNames(first), "pod_crash_loop") { + t.Fatal("first event should produce a crash_loop match") + } + if contains(matchNames(second), "pod_crash_loop") { + t.Error("second event within rate-limit window should be suppressed") + } +} + +// TestEngine_RateLimiterSuppressesResyncFlood: kubewatch sends one +// UPDATE per resourceVersion bump for an already-broken Pod (and obj +// always equals oldObj on the wire). The engine's predicate fires every +// time, but the rate-limiter dedupes by (matcher, fingerprint) and the +// second fire inside the 10-min window is suppressed. +func TestEngine_RateLimiterSuppressesResyncFlood(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod","creationTimestamp":"2025-01-01T00:00:00Z"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":1158,"state":{"waiting":{"reason":"CrashLoopBackOff"}}} + ]} + }`) + eng := NewEngine(Builtins(), time.Now()) + first := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod, OldObj: pod}) + if !contains(matchNames(first), "pod_crash_loop") { + t.Fatal("first resync must fire crash_loop (rate-limit cache fresh)") + } + second := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod, OldObj: pod}) + if contains(matchNames(second), "pod_crash_loop") { + t.Error("second resync inside the 10-min window must be suppressed by rate-limiter") + } +} + +func TestEngine_KindFilter(t *testing.T) { + // Pod-shaped matcher must not fire on a Deployment event. + deploy := asObj(t, `{"metadata":{"name":"d","namespace":"ns"}}`) + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)) + matches := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Deployment", Obj: deploy}) + for _, n := range matchNames(matches) { + if strings.HasPrefix(n, "pod_") { + t.Errorf("Pod matcher %q fired on Deployment event", n) + } + } +} + +func TestEngine_ReturnsEmptyForNoMatch(t *testing.T) { + // Healthy Pod → no matchers fire → no Findings emitted (the whole point). + pod := asObj(t, `{ + "metadata":{"name":"web-0","namespace":"prod"}, + "status":{"containerStatuses":[ + {"name":"app","restartCount":0, + "state":{"running":{"startedAt":"2026-05-07T13:00:00Z"}}} + ]} + }`) + eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)) + matches := eng.Match(IncomingK8sEvent{Operation: "update", Kind: "Pod", Obj: pod}) + if len(matches) != 0 { + t.Errorf("healthy Pod should produce 0 matches; got %d: %v", len(matches), matchNames(matches)) + } +} + +// ---------- owner-walk ---------- + +func TestResolveOwner_ReplicaSetStripsHash(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"ownerReferences":[ + {"kind":"ReplicaSet","name":"web-7f9d8c5b6","controller":true} + ]} + }`) + o := ResolveOwner(pod) + if o.Name != "web" || o.Kind != "deployment" { + t.Errorf("owner = %+v; want {web deployment}", o) + } +} + +func TestResolveOwner_DaemonSetPassesThrough(t *testing.T) { + pod := asObj(t, `{ + "metadata":{"ownerReferences":[ + {"kind":"DaemonSet","name":"node-agent","controller":true} + ]} + }`) + o := ResolveOwner(pod) + if o.Name != "node-agent" || o.Kind != "daemonset" { + t.Errorf("owner = %+v; want {node-agent daemonset}", o) + } +} + +func TestResolveOwner_BarePod(t *testing.T) { + pod := asObj(t, `{"metadata":{"name":"naked"}}`) + o := ResolveOwner(pod) + if o.Name != "" || o.Kind != "" { + t.Errorf("bare Pod owner should be zero; got %+v", o) + } +} + +func TestResolveOwner_PrefersControllerRef(t *testing.T) { + // Multiple ownerRefs — only the controller=true one wins (k8s convention). + pod := asObj(t, `{ + "metadata":{"ownerReferences":[ + {"kind":"DaemonSet","name":"unrelated","controller":false}, + {"kind":"ReplicaSet","name":"web-7f9d8c5b6","controller":true} + ]} + }`) + o := ResolveOwner(pod) + if o.Name != "web" || o.Kind != "deployment" { + t.Errorf("expected controller ref to win; got %+v", o) + } +} + +// ---------- helpers ---------- + +func matchNames(ms []Match) []string { + out := make([]string, len(ms)) + for i, m := range ms { + out[i] = m.Spec.Name + } + return out +} + +func contains(ss []string, s string) bool { + for _, x := range ss { + if x == s { + return true + } + } + return false +} + +func itoa(n int) string { + // avoid pulling in strconv just for tests where the values are small + // digit-by-digit serialise (tests use restartCount 1-9 and a few 100s) + if n == 0 { + return "0" + } + neg := n < 0 + if neg { + n = -n + } + var buf [20]byte + i := len(buf) + for n > 0 { + i-- + buf[i] = byte('0' + n%10) + n /= 10 + } + if neg { + i-- + buf[i] = '-' + } + return string(buf[i:]) +} diff --git a/runner/pkg/triggers/ratelimit.go b/runner/pkg/triggers/ratelimit.go new file mode 100644 index 0000000..f7aa00c --- /dev/null +++ b/runner/pkg/triggers/ratelimit.go @@ -0,0 +1,98 @@ +package triggers + +import ( + "container/list" + "sync" + "time" +) + +// RateLimiter is a bounded LRU + TTL cache keyed by string. Used to +// suppress repeat fires of the same trigger fingerprint within the +// matcher's RateLimit window — pod_oom_killed uses rate_limit=3600. +// +// Single-replica agent deployments mean we don't need cross-process +// coordination; in-memory is enough. Plan agent flagged that restart +// loses state — see Engine's grace-window for the mitigation. +// +// The cap (`MaxEntries`) protects against pathological label/name +// cardinality (an alert with random labels could otherwise grow +// unbounded). When full we evict the oldest by access time, not by +// expiry. ~10k entries ≈ ~1 MB of memory, comfortable headroom. +type RateLimiter struct { + mu sync.Mutex + maxEntries int + now func() time.Time // injectable for tests + + order *list.List // *entry, front=newest + index map[string]*list.Element +} + +type entry struct { + key string + expiresAt time.Time +} + +// NewRateLimiter returns a limiter with the given capacity. Pass 0 to +// use the default (10000). Callers don't need to call Close — there's +// no goroutine. +func NewRateLimiter(maxEntries int) *RateLimiter { + if maxEntries <= 0 { + maxEntries = 10000 + } + return &RateLimiter{ + maxEntries: maxEntries, + now: time.Now, + order: list.New(), + index: make(map[string]*list.Element, maxEntries), + } +} + +// Allow returns true when the key is fresh (no record within window or +// the previous record's TTL has expired) and records a new entry that +// expires `window` from now. Returns false when a non-expired record +// exists — the caller should drop the fire. +// +// Window 0 disables the limiter for this call (always returns true, +// no record kept) — convenient for matchers with no rate limit. +func (r *RateLimiter) Allow(key string, window time.Duration) bool { + if window <= 0 { + return true + } + r.mu.Lock() + defer r.mu.Unlock() + now := r.now() + + if el, ok := r.index[key]; ok { + e := el.Value.(*entry) + if now.Before(e.expiresAt) { + // Existing record still in window — suppress the fire, + // don't refresh the TTL (a continuously-firing condition + // shouldn't extend the suppression indefinitely). + return false + } + // Expired — refresh the record + bump to MRU. + e.expiresAt = now.Add(window) + r.order.MoveToFront(el) + return true + } + + // New entry. Evict if we're at the cap. + if r.order.Len() >= r.maxEntries { + oldest := r.order.Back() + if oldest != nil { + old := oldest.Value.(*entry) + delete(r.index, old.key) + r.order.Remove(oldest) + } + } + el := r.order.PushFront(&entry{key: key, expiresAt: now.Add(window)}) + r.index[key] = el + return true +} + +// Len returns the current entry count. Test-only. +func (r *RateLimiter) Len() int { + r.mu.Lock() + defer r.mu.Unlock() + return r.order.Len() +} diff --git a/runner/pkg/triggers/ratelimit_test.go b/runner/pkg/triggers/ratelimit_test.go new file mode 100644 index 0000000..9bc6bd9 --- /dev/null +++ b/runner/pkg/triggers/ratelimit_test.go @@ -0,0 +1,72 @@ +package triggers + +import ( + "testing" + "time" +) + +func TestRateLimiter_AllowsFirst_SuppressesWithinWindow(t *testing.T) { + rl := NewRateLimiter(0) + if !rl.Allow("k", time.Minute) { + t.Fatal("first Allow must return true") + } + if rl.Allow("k", time.Minute) { + t.Error("second Allow within window must return false") + } +} + +func TestRateLimiter_AllowsAfterExpiry(t *testing.T) { + rl := NewRateLimiter(0) + clock := time.Now() + rl.now = func() time.Time { return clock } + + if !rl.Allow("k", time.Minute) { + t.Fatal("first Allow must return true") + } + clock = clock.Add(2 * time.Minute) // skip past TTL + if !rl.Allow("k", time.Minute) { + t.Error("Allow after expiry must return true") + } +} + +func TestRateLimiter_ZeroWindowDisables(t *testing.T) { + // Matchers with RateLimit=0 should fire every time — used for + // transition-gated triggers (job_failure, node_not_ready) where the + // fingerprint already varies per transition. + rl := NewRateLimiter(0) + for i := 0; i < 5; i++ { + if !rl.Allow("k", 0) { + t.Errorf("Allow(window=0) must always return true; iteration %d", i) + } + } + if rl.Len() != 0 { + t.Errorf("Len = %d; window=0 must not store entries", rl.Len()) + } +} + +func TestRateLimiter_DifferentKeysIndependent(t *testing.T) { + rl := NewRateLimiter(0) + if !rl.Allow("a", time.Minute) { + t.Fatal("a should fire") + } + if !rl.Allow("b", time.Minute) { + t.Fatal("b should fire (independent key)") + } + if rl.Allow("a", time.Minute) || rl.Allow("b", time.Minute) { + t.Error("repeats of either key must be suppressed") + } +} + +func TestRateLimiter_EvictsAtCap(t *testing.T) { + rl := NewRateLimiter(3) + for i := 0; i < 10; i++ { + rl.Allow(string(rune('a'+i)), time.Hour) + } + if rl.Len() != 3 { + t.Errorf("Len = %d; want 3 (LRU cap)", rl.Len()) + } + // Oldest evicted ('a') — Allow should now return true (no record exists). + if !rl.Allow("a", time.Hour) { + t.Error("evicted 'a' should be allowed again") + } +} diff --git a/runner/pkg/triggers/types.go b/runner/pkg/triggers/types.go new file mode 100644 index 0000000..a01fe69 --- /dev/null +++ b/runner/pkg/triggers/types.go @@ -0,0 +1,193 @@ +// Package triggers implements playbook-trigger matching on the agent +// side. Most kubewatch events match nothing and are silently dropped; +// the few that match a registered trigger emit a Finding with a +// specific aggregation_key (`report_crash_loop`, `pod_oom_killer_enricher`, +// `image_pull_backoff_reporter`, `job_failure`, `node_not_ready`, +// `Kubernetes Warning Event`, …). +// +// Matchers are declared as data-driven MatcherSpec values rather than +// hardcoded if-blocks so when stage 2.3 ships DB-stored playbook config +// (plan §5d), the agent's existing config-pull path can deliver the same +// struct shape. No matcher refactor needed at that point. +package triggers + +import ( + "context" + "time" +) + +// IncomingK8sEvent is the agent-friendly shape of the +// IncomingK8sEventPayload. Built from the inner `data` dict kubewatch +// posts at /api/handle. obj is always present; oldObj is non-nil only +// for UPDATE operations. +type IncomingK8sEvent struct { + Operation string // "create" | "update" | "delete" — kubewatch's lowercase enum (kubewatch/pkg/handlers/cloudevent/cloudevent.go:159-167) and the K8sOperationType enum. Strict string match in operationMatches; do not capitalize. + Kind string // "Pod" | "Job" | "Deployment" | ... | "Event" + Obj map[string]any // current resource (full UnstructuredContent) + OldObj map[string]any // previous resource on UPDATE; nil otherwise +} + +// MatcherSpec declares one trigger predicate + the Finding it emits. +// Plan agent feedback: keep this purely data so stage 2.3 can deliver +// these from a DB-stored playbook config without touching matcher code. +type MatcherSpec struct { + // Name is for logging + metrics labels. Should be stable across + // versions (used as a metric label cardinality control). + Name string + + // Kind filters by `IncomingK8sEvent.Kind`. Use "Any" to match every + // kind (rarely needed; most matchers are kind-specific). + Kind string + + // Operations filters by `IncomingK8sEvent.Operation`. Empty slice + // matches every operation. job_failure / pod_oom_killed fire on + // UPDATE only (transition detection); pod_crash_loop fires on + // UPDATE because the waiting state is observed there too. + Operations []string + + // Predicate is the semantic gate. Returns true to fire the matcher. + // `obj` is always non-nil; `oldObj` is non-nil only on UPDATE. + // Predicates should be pure functions of (obj, oldObj) — no I/O, + // no clock reads (the engine handles rate-limiting + grace window). + Predicate func(obj, oldObj map[string]any) bool + + // AggregationKey is set on the emitted Finding. Determines how the + // UI groups + dedupes. We use the legacy strings (so the UI's + // per-aggregation_key handling stays unchanged). + AggregationKey string + + // Priority is the Finding's `priority` value: + // "HIGH" | "MEDIUM" | "INFO" | "LOW" | "DEBUG" (FindingSeverity). + Priority string + + // FindingType is "issue" for failure conditions (crash, OOM), + // "configuration_change" for diff-style triggers (babysitter etc.). + // Maps to the FindingType enum. + FindingType string + + // RateLimit suppresses repeat fires of the same fingerprint within + // the window. 0 = no rate-limit. pod_oom_killed uses 1h; others + // typically 5-10 min. + RateLimit time.Duration + + // FingerprintFn extracts the dedup key from the matched obj. Plan + // agent feedback: fingerprint MUST include a recurrence-bucket + // dimension for repeating conditions (crash count bucket, time + // bucket, etc.) — otherwise OOM-3-times-an-hour collapses to + // one Finding forever. Each builtin matcher provides its own. + FingerprintFn func(obj map[string]any) string + + // SuppressOnResync controls the restart grace window. When true, + // the engine drops fires for objects whose creationTimestamp is + // older than (agentStartTime - GraceWindow). The legacy runner got + // this for free via informer resync semantics; we have to opt in + // per matcher. Set true for "currently-active condition" predicates + // (crash, OOM, image-pull) where a resync would re-fire every + // already-broken Pod after every helm upgrade. Set false for + // transition predicates (job_failure, node_not_ready) where the + // transition itself is the signal. + SuppressOnResync bool + + // EnrichBlocks (optional) runs after the Predicate fires and the + // rate-limit gate passes. The returned blocks are attached to + // Match.ExtraBlocks and end up as additional evidence on the + // emitted Finding. Used today by `babysitter_change` to attach the + // computed spec diff as a `diff` block, and by Pod-state matchers + // to attach recent K8s events. The EnrichContext carries optional + // helpers (K8s events lister, logger) — matchers ignore the ones + // they don't need. Stage-2.2 enricher composers will replace this + // for triggers whose enrichment requires server-side relay calls. + EnrichBlocks func(obj, oldObj map[string]any, ec EnrichContext) []EvidenceBlock +} + +// EnrichContext is the per-event context the engine threads into +// EnrichBlocks. Carries optional helpers a matcher may use to fetch +// extra evidence (recent K8s events, …). Fields are nilable — matchers +// must check before calling. +type EnrichContext struct { + // EventsLister fetches recent K8s events for a namespaced or + // cluster-scoped object. Set when the engine was wired with a K8s + // client at startup; nil in unit tests, in which case event-table + // blocks degrade to "events unavailable". + EventsLister K8sEventsLister +} + +// K8sEventsLister fetches recent K8s events for an object. The engine +// uses it to attach three tables to every match by default: +// +// - subject events: ListEvents(ns, kind, name, …) — the matched object +// - node events: ListEvents("", "Node", nodeName, …) — cluster-wide +// - namespace events: ListEvents(ns, "", "", …) — no involvedObject filter +// +// Empty kind/name means "no filter on that dimension"; empty namespace +// means "cluster-wide" (Events("").List()). The implementation rejects +// only the (namespace="" && kind=="" && name=="") case to avoid an +// unbounded all-events sweep. +// +// Implementation lives in cmd/agent/main.go and wraps clientset.CoreV1().Events() +// with a short timeout. A nil lister is valid (tests, environments without a +// K8s client) — matchers handle it by emitting a placeholder event-table block. +type K8sEventsLister interface { + ListEvents(ctx context.Context, namespace, kind, name string, limit int) ([]K8sEvent, error) +} + +// K8sEvent is the subset of corev1.Event the agent surfaces in +// evidence. Fields mirror what pod_events_enricher emits in its +// TableBlock columns (kubectl get events output). +type K8sEvent struct { + Type string // "Warning" | "Normal" + Reason string // "BackOff" | "OOMKilling" | "FailedScheduling" | … + Message string // event.message + Count int32 // event.count (or series.count) + FirstSeen time.Time // earliest observation + LastSeen time.Time // most recent observation + Source string // event.source.component (kubelet, default-scheduler, …) +} + +// EvidenceBlock is one structured-data item inside the Finding's +// evidence array. `type` selects the block kind ("markdown" | "json" | +// "table" | …), other fields are kind-specific. +// +// Open map rather than typed struct so new block kinds can be passed +// through without validation. The collector + UI know how to render +// each kind. +type EvidenceBlock map[string]any + +// Match is what Engine.Match returns for one fired trigger. The caller +// (typically pkg/alerts.Forwarder) uses these fields to build a +// FindingEnvelope via the Builder. Multiple matchers can fire on one +// event — the engine returns all of them. +type Match struct { + // Spec is the matcher that fired. Caller pulls AggregationKey / + // Priority / FindingType from here. + Spec *MatcherSpec + + // Fingerprint is the dedup key the matcher computed via FingerprintFn. + Fingerprint string + + // Owner is the resolved top-level workload (Deployment / DaemonSet / + // StatefulSet / Job). Empty when the obj has no owner refs (e.g. a + // bare Pod) or when the chain doesn't terminate at a known kind. + Owner OwnerRef + + // SubjectName / SubjectNamespace come from obj.metadata. The matcher + // may override SubjectName for special cases (warning_event uses + // involvedObject.name, not obj.metadata.name). + SubjectName string + SubjectNamespace string + SubjectKind string // lowercased; "pod" | "deployment" | etc. + SubjectNode string // obj.spec.nodeName when present + + // ExtraBlocks is populated from MatcherSpec.EnrichBlocks (when set). + // The Finding builder appends each one as a structured-data block + // alongside the raw event JSON evidence. Empty for matchers that + // don't define EnrichBlocks. + ExtraBlocks []EvidenceBlock +} + +// OwnerRef is the resolved top-level workload. Set on Match.Owner when +// the engine's owner-walk terminates at a recognized kind. +type OwnerRef struct { + Name string + Kind string // canonical lowercased kind, e.g. "deployment" / "daemonset" +} diff --git a/runner/pkg/version/version.go b/runner/pkg/version/version.go new file mode 100644 index 0000000..9254f0b --- /dev/null +++ b/runner/pkg/version/version.go @@ -0,0 +1,27 @@ +// Package version exposes linker-stamped build metadata (version, commit, +// build time) used by the agent's /healthz, /metrics, and WS greeting. +package version + +import "os" + +var ( + Version = "dev" + Commit = "unknown" + BuildTime = "unknown" +) + +// CurrentVersion returns the user-facing agent version. Prefers the +// `RUNNER_VERSION` env var (set by the Helm chart to `.Chart.AppVersion`, +// e.g. `0.0.124`) over the build-time `Version` ldflag (e.g. +// `2026-05-13T08-48-09_1c6d54c…`). +// +// The chart version is what the UI's Agent Health panel and the +// "your agent version is out of date" comparison expect. The build +// SHA is still useful for debugging and is exposed via the startup +// banner + the `Commit` / `BuildTime` package vars. +func CurrentVersion() string { + if v := os.Getenv("RUNNER_VERSION"); v != "" { + return v + } + return Version +} diff --git a/runner/pkg/version/version_test.go b/runner/pkg/version/version_test.go new file mode 100644 index 0000000..6820de6 --- /dev/null +++ b/runner/pkg/version/version_test.go @@ -0,0 +1,34 @@ +package version + +import "testing" + +// CurrentVersion prefers RUNNER_VERSION over the build-time ldflag. +// The Helm chart sets RUNNER_VERSION={{.Chart.AppVersion}} on the +// runner container (charts/nudgebee-agent/templates/_helpers.tpl:177); +// the UI's Agent Health card surfaces this as the user-facing version. +func TestCurrentVersion(t *testing.T) { + t.Run("env_overrides_build_version", func(t *testing.T) { + t.Setenv("RUNNER_VERSION", "0.0.124") + Version = "2026-05-13T08-48-09_1c6d54c" + if got := CurrentVersion(); got != "0.0.124" { + t.Errorf("CurrentVersion() = %q; want 0.0.124", got) + } + }) + + t.Run("falls_back_to_build_version_when_env_unset", func(t *testing.T) { + t.Setenv("RUNNER_VERSION", "") + Version = "build-sha-fallback" + if got := CurrentVersion(); got != "build-sha-fallback" { + t.Errorf("CurrentVersion() = %q; want build-sha-fallback", got) + } + }) + + t.Run("empty_env_treated_as_unset", func(t *testing.T) { + // An explicit empty value should fall back rather than emit "". + t.Setenv("RUNNER_VERSION", "") + Version = "v0.0.99" + if got := CurrentVersion(); got != "v0.0.99" { + t.Errorf("CurrentVersion() = %q; want v0.0.99", got) + } + }) +} From 005c9f2f14c7d99027e7ae2436f1d2d501090c70 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 26 May 2026 22:13:19 +0530 Subject: [PATCH 15/40] =?UTF-8?q?chore(repo):=20hygiene=20=E2=80=94=20giti?= =?UTF-8?q?gnore,=20workflow=20names/permissions,=20dependabot=20(#434)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * chore(repo): hygiene — gitignore, workflow names/permissions, dependabot - .gitignore: add OS/editor cruft, packaged charts, coverage output, and root-anchored patterns for local-only secret/data files - helm-dev-lint / helm-prod-test: distinct names (both were 'CI') - all workflows: top-level read-only default permissions (write-needing jobs already declare job-level scopes) - dependabot: add gomod + docker ecosystems for runner/ * ci: add OpenSSF Scorecard workflow + badge * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- .github/dependabot.yml | 17 ++++++++++ .github/workflows/helm-dev-lint.yml | 5 ++- .github/workflows/helm-prod-test.yml | 5 ++- .github/workflows/release-rc.yml | 3 ++ .github/workflows/release.yml | 3 ++ .github/workflows/scorecard.yml | 42 +++++++++++++++++++++++++ .github/workflows/update-image-tags.yml | 3 ++ .gitignore | 30 ++++++++++++++++-- README.md | 1 + charts/nudgebee-agent/values.yaml | 2 +- 10 files changed, 105 insertions(+), 6 deletions(-) create mode 100644 .github/workflows/scorecard.yml diff --git a/.github/dependabot.yml b/.github/dependabot.yml index 95ef7b5..1f1d52d 100644 --- a/.github/dependabot.yml +++ b/.github/dependabot.yml @@ -16,3 +16,20 @@ updates: labels: - dependencies - docker + + # Runner component (Go binary + its Dockerfile) + - package-ecosystem: docker + directory: /runner + schedule: + interval: weekly + labels: + - dependencies + - docker + + - package-ecosystem: gomod + directory: /runner + schedule: + interval: weekly + labels: + - dependencies + - go diff --git a/.github/workflows/helm-dev-lint.yml b/.github/workflows/helm-dev-lint.yml index 24bd8ae..4c051af 100644 --- a/.github/workflows/helm-dev-lint.yml +++ b/.github/workflows/helm-dev-lint.yml @@ -1,5 +1,5 @@ # CI Workflow for Agent Helm chart -name: CI +name: Helm Lint (dev) on: push: @@ -8,6 +8,9 @@ on: branches: [ "main"] workflow_dispatch: +permissions: + contents: read + jobs: helm-lint-and-validate: runs-on: ubuntu-latest diff --git a/.github/workflows/helm-prod-test.yml b/.github/workflows/helm-prod-test.yml index 28db426..33281a2 100644 --- a/.github/workflows/helm-prod-test.yml +++ b/.github/workflows/helm-prod-test.yml @@ -1,5 +1,5 @@ # CI Workflow for Agent Helm chart -name: CI +name: Helm Test (prod) on: push: @@ -8,6 +8,9 @@ on: branches: [ "prod"] workflow_dispatch: +permissions: + contents: read + jobs: helm-lint-and-validate: runs-on: ubuntu-latest diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index 115b0d4..d155d3f 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -3,6 +3,9 @@ name: Release RC Charts on: workflow_dispatch: +permissions: + contents: read + jobs: release-rc: permissions: diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 0a90ea7..46c1e7f 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -3,6 +3,9 @@ name: Release Charts on: workflow_dispatch: +permissions: + contents: read + jobs: release: permissions: diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml new file mode 100644 index 0000000..19d7910 --- /dev/null +++ b/.github/workflows/scorecard.yml @@ -0,0 +1,42 @@ +name: Scorecard + +on: + branch_protection_rule: + schedule: + - cron: '37 7 * * 1' # weekly, Monday + push: + branches: [main] + +permissions: read-all + +jobs: + analysis: + name: Scorecard analysis + runs-on: ubuntu-latest + permissions: + security-events: write # upload SARIF to code scanning + id-token: write # publish results to the OpenSSF API + steps: + - name: Checkout + uses: actions/checkout@v6 + with: + persist-credentials: false + + - name: Run analysis + uses: ossf/scorecard-action@v2.4.3 + with: + results_file: results.sarif + results_format: sarif + publish_results: true + + - name: Upload artifact + uses: actions/upload-artifact@v7 + with: + name: SARIF file + path: results.sarif + retention-days: 5 + + - name: Upload to code-scanning + uses: github/codeql-action/upload-sarif@v3 + with: + sarif_file: results.sarif diff --git a/.github/workflows/update-image-tags.yml b/.github/workflows/update-image-tags.yml index a21850d..a1f7349 100644 --- a/.github/workflows/update-image-tags.yml +++ b/.github/workflows/update-image-tags.yml @@ -7,6 +7,9 @@ on: - prod types: [opened, synchronize, reopened] +permissions: + contents: read + jobs: update-tags: runs-on: ubuntu-latest diff --git a/.gitignore b/.gitignore index dc35c64..0725494 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,27 @@ -.idea -/charts/*/charts -**/Chart.lock \ No newline at end of file +# Editors / IDEs +.idea/ +.vscode/ +*.swp +*~ + +# OS cruft +.DS_Store + +# Helm +/charts/*/charts/ +**/Chart.lock +*.tgz +.cr-release-packages/ + +# Go / test output +coverage.out +coverage.html +*.test + +# Local-only files — never commit. Anchored to the repo root so chart +# templates (e.g. charts/*/templates/*secret*.yaml) are unaffected. +/*secret*.yaml +/*secret*.yml +/sample-data.yaml +.env +.env.local diff --git a/README.md b/README.md index a207f3f..d1edd7e 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,7 @@ [![Helm Lint](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-dev-lint.yml/badge.svg)](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-dev-lint.yml) [![Helm Test](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-prod-test.yml/badge.svg)](https://github.com/nudgebee/k8s-agent/actions/workflows/helm-prod-test.yml) [![Release](https://img.shields.io/github/v/release/nudgebee/k8s-agent)](https://github.com/nudgebee/k8s-agent/releases) +[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/nudgebee/k8s-agent/badge)](https://securityscorecards.dev/viewer/?uri=github.com/nudgebee/k8s-agent) Helm chart for the NudgeBee Kubernetes agent. The agent runs in your cluster, collects Kubernetes state, events, metrics, logs, and traces, and forwards them to the NudgeBee backend for observability, cost visibility, and incident automation. diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index c04265a..561054c 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-05-21T11-58-47_dea9a9abd8c9aa877c405ffa0e1c86e9d3983906 + tag: 2026-05-26T07-35-13_511a9e0b1ea6318caea7031edd59fe79d32930ca imagePullPolicy: IfNotPresent resources: requests: From 3c3f2a5bcfd856723335ecffa582336c591e4094 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Sat, 30 May 2026 00:47:40 +0530 Subject: [PATCH 16/40] ci: harden workflows for OpenSSF Scorecard (#435) * ci: harden workflows for OpenSSF Scorecard Address Dangerous-Workflow, Pinned-Dependencies, and Token-Permissions findings from the OpenSSF Scorecard. - update-image-tags.yml: fix script injection. github.head_ref / github.base_ref are attacker-controllable PR inputs; move them out of inline ${{ }} in run:/github-script into env vars referenced as quoted "$HEAD_REF"/$BASE_REF (shell) and ${process.env.BASE_REF} (JS). - Pin all GitHub Actions to commit SHAs (# vX comments; Dependabot keeps them current). - Pin runner/Dockerfile base images to multi-arch manifest-list digests (golang:1.26-alpine, alpine:3.23). - Add top-level `permissions: contents: read` to runner-image.yaml and runner-lint-test.yaml (the only workflows still defaulting to write-all); job-level packages:write escalation preserved. * ci: add CodeQL workflow for Go (runner/) and Actions Default-setup CodeQL doesn't pick up the runner because Linguist classifies this repo as Go Template + Shell (the Helm chart dominates). Explicit workflow scans runner/ Go code and the workflow files themselves on push, PR, and weekly. Co-Authored-By: Claude Opus 4.7 (1M context) --------- Co-authored-by: shiv Co-authored-by: Claude Opus 4.7 (1M context) --- .github/workflows/codeql.yml | 62 +++++++++++++++++++++++++ .github/workflows/helm-dev-lint.yml | 8 ++-- .github/workflows/helm-prod-test.yml | 8 ++-- .github/workflows/release-rc.yml | 6 +-- .github/workflows/release.yml | 6 +-- .github/workflows/runner-image.yaml | 13 ++++-- .github/workflows/runner-lint-test.yaml | 11 +++-- .github/workflows/scorecard.yml | 8 ++-- .github/workflows/update-image-tags.yml | 20 +++++--- runner/Dockerfile | 6 +-- 10 files changed, 111 insertions(+), 37 deletions(-) create mode 100644 .github/workflows/codeql.yml diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml new file mode 100644 index 0000000..20c5ea5 --- /dev/null +++ b/.github/workflows/codeql.yml @@ -0,0 +1,62 @@ +name: CodeQL + +# Linguist mis-classifies this repo (Helm templates dominate, runner/ Go code +# is hidden), so default-setup CodeQL doesn't see Go. Configure it explicitly. +on: + push: + branches: [main] + pull_request: + branches: [main] + schedule: + - cron: '24 7 * * 1' # weekly, Monday + +permissions: read-all + +jobs: + analyze: + name: Analyze (${{ matrix.language }}) + runs-on: ubuntu-latest + timeout-minutes: 30 + permissions: + security-events: write + packages: read + actions: read + contents: read + strategy: + fail-fast: false + matrix: + include: + - language: go + build-mode: manual + - language: actions + build-mode: none + + steps: + - name: Checkout + uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6 + with: + persist-credentials: false + + - name: Setup Go + if: matrix.language == 'go' + uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6 + with: + go-version-file: runner/go.mod + cache: true + cache-dependency-path: runner/go.sum + + - name: Initialize CodeQL + uses: github/codeql-action/init@03e4368ac7daa2bd82b3e85262f3bf87ee112f57 # v3 + with: + languages: ${{ matrix.language }} + build-mode: ${{ matrix.build-mode }} + + - name: Build Go (manual) + if: matrix.language == 'go' + working-directory: runner + run: go build ./... + + - name: Perform CodeQL Analysis + uses: github/codeql-action/analyze@03e4368ac7daa2bd82b3e85262f3bf87ee112f57 # v3 + with: + category: "/language:${{ matrix.language }}" diff --git a/.github/workflows/helm-dev-lint.yml b/.github/workflows/helm-dev-lint.yml index 4c051af..633aba6 100644 --- a/.github/workflows/helm-dev-lint.yml +++ b/.github/workflows/helm-dev-lint.yml @@ -16,7 +16,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4 with: fetch-depth: 0 @@ -27,16 +27,16 @@ jobs: helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts helm repo add bitnami https://charts.bitnami.com/bitnami - - uses: azure/setup-helm@v4 + - uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4 with: version: v3.14.0 - - uses: actions/setup-python@v5 + - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5 with: python-version: '3.12' - name: Set up chart-testing - uses: helm/chart-testing-action@v2.7.0 + uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b # v2.7.0 - name: Run chart-testing (lint) run: ct lint --debug --config ./.github/configs/ct.yaml --lint-conf ./.github/configs/lintconf.yaml --check-version-increment=false diff --git a/.github/workflows/helm-prod-test.yml b/.github/workflows/helm-prod-test.yml index 33281a2..800da77 100644 --- a/.github/workflows/helm-prod-test.yml +++ b/.github/workflows/helm-prod-test.yml @@ -16,7 +16,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4 with: fetch-depth: 0 @@ -27,16 +27,16 @@ jobs: helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts helm repo add bitnami https://charts.bitnami.com/bitnami - - uses: azure/setup-helm@v4 + - uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4 with: version: v3.14.0 - - uses: actions/setup-python@v5 + - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5 with: python-version: '3.12' - name: Set up chart-testing - uses: helm/chart-testing-action@v2.7.0 + uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b # v2.7.0 - name: List changed charts id: list-changed diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index d155d3f..a5d66c3 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -13,7 +13,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3 with: fetch-depth: 0 @@ -23,7 +23,7 @@ jobs: git config user.email "$GITHUB_ACTOR@users.noreply.github.com" - name: Install Helm - uses: azure/setup-helm@v3 + uses: azure/setup-helm@5119fcb9089d432beecbf79bb2c7915207344b78 # v3 with: version: v3.10.0 @@ -79,7 +79,7 @@ jobs: helm repo update - name: Run chart-releaser for RC - uses: helm/chart-releaser-action@v1.4.1 + uses: helm/chart-releaser-action@98bccfd32b0f76149d188912ac8e45ddd3f8695f # v1.4.1 with: charts_dir: charts config: .github/configs/cr.yaml diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 46c1e7f..148ab2a 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -13,7 +13,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@v3 + uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3 with: fetch-depth: 0 @@ -23,7 +23,7 @@ jobs: git config user.email "$GITHUB_ACTOR@users.noreply.github.com" - name: Install Helm - uses: azure/setup-helm@v3 + uses: azure/setup-helm@5119fcb9089d432beecbf79bb2c7915207344b78 # v3 with: version: v3.10.0 @@ -32,6 +32,6 @@ jobs: helm repo add opencost https://opencost.github.io/opencost-helm-chart - name: Run chart-releaser - uses: helm/chart-releaser-action@v1.4.1 + uses: helm/chart-releaser-action@98bccfd32b0f76149d188912ac8e45ddd3f8695f # v1.4.1 env: CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}" diff --git a/.github/workflows/runner-image.yaml b/.github/workflows/runner-image.yaml index dc54127..0dab06a 100644 --- a/.github/workflows/runner-image.yaml +++ b/.github/workflows/runner-image.yaml @@ -11,6 +11,9 @@ on: # nudgebee-agent repo so the chart's update-image-tags workflow picks up new # tags unchanged. main is the release branch. +permissions: + contents: read + jobs: build: runs-on: ubuntu-latest @@ -19,17 +22,17 @@ jobs: packages: write steps: - name: Set up QEMU - uses: docker/setup-qemu-action@v4 + uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4 - name: Set up Docker Buildx - uses: docker/setup-buildx-action@v4 + uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4 - - uses: actions/checkout@v6 + - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6 with: fetch-depth: 0 - name: Log in to GitHub Container Registry - uses: docker/login-action@v4 + uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4 with: registry: ghcr.io username: ${{ github.actor }} @@ -39,7 +42,7 @@ jobs: run: echo "tag=$(date +'%Y-%m-%dT%H-%M-%S')_$GITHUB_SHA" >> $GITHUB_ENV - name: Build and Push Image - uses: docker/build-push-action@v7 + uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7 with: platforms: linux/amd64,linux/arm64 context: runner diff --git a/.github/workflows/runner-lint-test.yaml b/.github/workflows/runner-lint-test.yaml index 37e63fe..e2aa689 100644 --- a/.github/workflows/runner-lint-test.yaml +++ b/.github/workflows/runner-lint-test.yaml @@ -9,6 +9,9 @@ on: branches: [main] paths: ['runner/**'] +permissions: + contents: read + jobs: test: name: Lint + Test @@ -21,12 +24,12 @@ jobs: go-version: ['1.26.x'] steps: - - uses: actions/checkout@v6 + - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6 with: fetch-depth: 0 - name: Setup Go ${{ matrix.go-version }} - uses: actions/setup-go@v6 + uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6 with: go-version: ${{ matrix.go-version }} cache: true @@ -45,7 +48,7 @@ jobs: run: go vet ./... - name: golangci-lint - uses: golangci/golangci-lint-action@v9 + uses: golangci/golangci-lint-action@82606bf257cbaff209d206a39f5134f0cfbfd2ee # v9 with: version: v2.9.0 args: --timeout 10m @@ -64,7 +67,7 @@ jobs: - name: Upload coverage artefact if: always() - uses: actions/upload-artifact@v7 + uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7 with: name: coverage path: runner/coverage.out diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml index 19d7910..06e4ae8 100644 --- a/.github/workflows/scorecard.yml +++ b/.github/workflows/scorecard.yml @@ -18,25 +18,25 @@ jobs: id-token: write # publish results to the OpenSSF API steps: - name: Checkout - uses: actions/checkout@v6 + uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6 with: persist-credentials: false - name: Run analysis - uses: ossf/scorecard-action@v2.4.3 + uses: ossf/scorecard-action@4eaacf0543bb3f2c246792bd56e8cdeffafb205a # v2.4.3 with: results_file: results.sarif results_format: sarif publish_results: true - name: Upload artifact - uses: actions/upload-artifact@v7 + uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7 with: name: SARIF file path: results.sarif retention-days: 5 - name: Upload to code-scanning - uses: github/codeql-action/upload-sarif@v3 + uses: github/codeql-action/upload-sarif@03e4368ac7daa2bd82b3e85262f3bf87ee112f57 # v3 with: sarif_file: results.sarif diff --git a/.github/workflows/update-image-tags.yml b/.github/workflows/update-image-tags.yml index a1f7349..7dc0c76 100644 --- a/.github/workflows/update-image-tags.yml +++ b/.github/workflows/update-image-tags.yml @@ -19,7 +19,7 @@ jobs: packages: read steps: - name: Checkout PR branch - uses: actions/checkout@v3 + uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3 with: token: ${{ secrets.GITHUB_TOKEN }} ref: ${{ github.head_ref }} @@ -28,8 +28,9 @@ jobs: working-directory: ./charts/nudgebee-agent env: GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} + BASE_REF: ${{ github.base_ref }} run: | - echo "Updating image tags for ${{ github.base_ref }} branch..." + echo "Updating image tags for $BASE_REF branch..." # nudgebee-agent: newest timestamp_sha tag from GHCR nudgebee_app_image=$(gh api -H "Accept: application/vnd.github+json" \ @@ -53,21 +54,26 @@ jobs: yq -i ".kubewatch.image.tag=\"$nudgebee_kubewatch_image\"" values.yaml - name: Commit updated image tags + env: + BASE_REF: ${{ github.base_ref }} + HEAD_REF: ${{ github.head_ref }} run: | git config user.name "github-actions[bot]" git config user.email "github-actions[bot]@users.noreply.github.com" - + if [[ -n $(git status --porcelain) ]]; then git add charts/nudgebee-agent/values.yaml - git commit -m "chore: update image tags for ${{ github.base_ref }} release" - git push origin ${{ github.head_ref }} + git commit -m "chore: update image tags for $BASE_REF release" + git push origin "$HEAD_REF" echo "Image tags updated and committed to PR branch" else echo "No changes to commit - image tags are already up to date" fi - name: Comment on PR - uses: actions/github-script@v6 + uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6 + env: + BASE_REF: ${{ github.base_ref }} with: script: | const { data: files } = await github.rest.pulls.listFiles({ @@ -85,7 +91,7 @@ jobs: repo: context.repo.repo, body: `📦 **Image Tags Updated** - I've automatically updated the image tags in \`charts/nudgebee-agent/values.yaml\` to the latest versions from GHCR for the \`${{ github.base_ref }}\` branch. + I've automatically updated the image tags in \`charts/nudgebee-agent/values.yaml\` to the latest versions from GHCR for the \`${process.env.BASE_REF}\` branch. The image tags are now synchronized with the latest builds and ready for release.` }); diff --git a/runner/Dockerfile b/runner/Dockerfile index 474050b..a8f46d3 100644 --- a/runner/Dockerfile +++ b/runner/Dockerfile @@ -2,7 +2,7 @@ # working `kubectl` binary alongside the agent — the kubectl_command_executor # action shells out to it (pkg/kube/exec.go). -FROM golang:1.26-alpine AS build +FROM golang:1.26-alpine@sha256:91eda9776261207ea25fd06b5b7fed8d397dd2c0a283e77f2ab6e91bfa71079d AS build WORKDIR /src ARG VERSION=dev @@ -26,13 +26,13 @@ RUN go build \ # we test against. The binary is amd64; if the agent runs on arm64 nodes, the # build pipeline should pull the arm64 variant. Currently we only build amd64 # images (.github/workflows/build-image.yaml). -FROM alpine:3.23 AS kubectl +FROM alpine:3.23@sha256:5b10f432ef3da1b8d4c7eb6c487f2f5a8f096bc91145e68878dd4a5019afde11 AS kubectl ARG KUBECTL_VERSION=v1.32.1 RUN apk add --no-cache curl ca-certificates && \ curl -fsSLo /usr/local/bin/kubectl "https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl" && \ chmod +x /usr/local/bin/kubectl -FROM alpine:3.23 +FROM alpine:3.23@sha256:5b10f432ef3da1b8d4c7eb6c487f2f5a8f096bc91145e68878dd4a5019afde11 WORKDIR / RUN apk add --no-cache ca-certificates && \ addgroup -S nonroot -g 65532 && \ From 95e298ff9bb9465a7354b5e9513affd827809f7b Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 1 Jun 2026 10:56:12 +0530 Subject: [PATCH 17/40] chore(deps): bump helm/chart-releaser-action from 1.4.1 to 1.7.0 (#436) Bumps [helm/chart-releaser-action](https://github.com/helm/chart-releaser-action) from 1.4.1 to 1.7.0. - [Release notes](https://github.com/helm/chart-releaser-action/releases) - [Commits](https://github.com/helm/chart-releaser-action/compare/98bccfd32b0f76149d188912ac8e45ddd3f8695f...cae68fefc6b5f367a0275617c9f83181ba54714f) --- updated-dependencies: - dependency-name: helm/chart-releaser-action dependency-version: 1.7.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- .github/workflows/release-rc.yml | 2 +- .github/workflows/release.yml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index a5d66c3..370f167 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -79,7 +79,7 @@ jobs: helm repo update - name: Run chart-releaser for RC - uses: helm/chart-releaser-action@98bccfd32b0f76149d188912ac8e45ddd3f8695f # v1.4.1 + uses: helm/chart-releaser-action@cae68fefc6b5f367a0275617c9f83181ba54714f # v1.7.0 with: charts_dir: charts config: .github/configs/cr.yaml diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 148ab2a..91abc91 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -32,6 +32,6 @@ jobs: helm repo add opencost https://opencost.github.io/opencost-helm-chart - name: Run chart-releaser - uses: helm/chart-releaser-action@98bccfd32b0f76149d188912ac8e45ddd3f8695f # v1.4.1 + uses: helm/chart-releaser-action@cae68fefc6b5f367a0275617c9f83181ba54714f # v1.7.0 env: CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}" From 7d38171fe552296c13ceb6ef430f9caa277c3af5 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 1 Jun 2026 12:50:39 +0530 Subject: [PATCH 18/40] fix(runner): resolve pod owner up to controlling Deployment (#442) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * fix(runner): resolve pod owner up to controlling Deployment The Pod converter forwarded raw pod.OwnerReferences as-is, so any Deployment-owned pod was emitted with `owner = [{kind: "ReplicaSet", name: "-"}]`. The collector keys k8s_pods.workload_{type,name} off owner[0], so the backend stopped writing any rows with workload_type="Deployment" — every UI/triage query that filters by Deployment returns empty. Fix the resolution at emit time using the ReplicaSet informer (already registered in RegisterAll). When the immediate owner is a ReplicaSet, read the RS from cache and emit the RS's own controller ownerReference (typically the Deployment) instead. Authoritative — handles RSes created outside the Deployment controller correctly and doesn't depend on the controller's pod-template-hash naming staying stable. - converters.go: add replicaSetLookupFn type, controllerOwner helper, and ownerInfosWithRSLookup(owners, namespace, rsLookup) variant. - service.go: split convertPod into newPodConverter(rsLookup) factory (matching the existing newDeploymentConverter pattern); add replicaSetLookup() closure backed by the RS informer indexer; wire RegisterPods to use the factory. - Tests cover three paths: RS→Deployment resolution, cache-miss fallback to the immediate RS (startup-race safety), and non-ReplicaSet owners (DaemonSet/StatefulSet/Job) passthrough. * fix(runner): factory-wide cache sync + idiomatic controllerOwner return Address PR review feedback: 1. Race on auxiliary informers Switch Run() from cache.WaitForCacheSync(handler-only) to s.factory.WaitForCacheSync(stopCh). The factory tracks every informer ever instantiated — including the ReplicaSet/Pod informers wired up via the lookup closures — so a caller that uses RegisterPods without RegisterReplicaSets no longer races the initial pod snapshot against an unsynced RS cache. 2. controllerOwner return shape Return (OwnerReference, bool) instead of *OwnerReference. Avoids handing out a pointer into a caller-owned slice, matches the "comma-ok" idiom, and lets the caller stack-allocate. --- runner/pkg/discovery/converters.go | 47 +++++++ runner/pkg/discovery/converters_test.go | 113 ++++++++++++++++ runner/pkg/discovery/service.go | 168 +++++++++++++++--------- 3 files changed, 269 insertions(+), 59 deletions(-) diff --git a/runner/pkg/discovery/converters.go b/runner/pkg/discovery/converters.go index 515c10d..4f40c16 100644 --- a/runner/pkg/discovery/converters.go +++ b/runner/pkg/discovery/converters.go @@ -19,6 +19,16 @@ import ( // "absent" and emit null defaults. type podLookupFn func(namespace string, selector labels.Selector) *corev1.Pod +// replicaSetLookupFn fetches a ReplicaSet by (namespace, name) out of the +// shared informer cache. Used by the Pod converter to resolve a Pod's +// immediate ReplicaSet owner up to its controlling Deployment by +// reading the ReplicaSet's own ownerReferences — the authoritative +// answer, vs. heuristically stripping a pod-template-hash suffix from +// the RS name. Returns nil when the RS isn't (yet) in cache; callers +// fall back to emitting the RS as-is and rely on the next status event +// to self-heal once the cache syncs. +type replicaSetLookupFn func(namespace, name string) *appsv1.ReplicaSet + // Converters for each resource type. The collector reads keys like // `service_key`, `node_creation_time`, `workload_count` directly and // crashes with KeyError when they're missing — emit every documented @@ -624,13 +634,50 @@ func containersFromTemplate(tpl corev1.PodTemplateSpec) []map[string]any { } func ownerInfos(owners []metav1.OwnerReference) []map[string]any { + return ownerInfosWithRSLookup(owners, "", nil) +} + +// ownerInfosWithRSLookup is the Pod-path variant: when an owner ref is a +// ReplicaSet and the RS is in the informer cache, the RS's own +// controller ownerReference (typically a Deployment) is emitted +// instead. This is the authoritative ReplicaSet→Deployment resolution +// — no name-suffix heuristics. When rsLookup is nil or the RS isn't in +// cache, falls back to passing the owner ref through unchanged; the +// next pod-status event self-heals once the RS cache syncs. +// +// `namespace` is the namespace of the owned object (OwnerReference is +// always same-namespace per K8s rules), used to scope the RS lookup. +func ownerInfosWithRSLookup(owners []metav1.OwnerReference, namespace string, rsLookup replicaSetLookupFn) []map[string]any { out := make([]map[string]any, 0, len(owners)) for _, o := range owners { + if rsLookup != nil && o.Kind == "ReplicaSet" { + if rs := rsLookup(namespace, o.Name); rs != nil { + if ctrl, ok := controllerOwner(rs.OwnerReferences); ok { + out = append(out, map[string]any{"kind": ctrl.Kind, "name": ctrl.Name}) + continue + } + } + } out = append(out, map[string]any{"kind": o.Kind, "name": o.Name}) } return out } +// controllerOwner returns the controller=true OwnerReference, or the +// first ref when none is explicitly marked (pre-1.16 manifests / some +// operators omit the field). The bool is false when refs is empty. +func controllerOwner(refs []metav1.OwnerReference) (metav1.OwnerReference, bool) { + for _, ref := range refs { + if ref.Controller != nil && *ref.Controller { + return ref, true + } + } + if len(refs) > 0 { + return refs[0], true + } + return metav1.OwnerReference{}, false +} + // isHelmRelease checks the standard label/annotation conventions. func isHelmRelease(labels, annotations map[string]string) bool { if labels["app.kubernetes.io/managed-by"] == "Helm" { diff --git a/runner/pkg/discovery/converters_test.go b/runner/pkg/discovery/converters_test.go index 79ea538..1eddded 100644 --- a/runner/pkg/discovery/converters_test.go +++ b/runner/pkg/discovery/converters_test.go @@ -370,6 +370,119 @@ func TestConvertDeployment_EmitsAll11ConfigKeys(t *testing.T) { } } +// Regression: with the Go-agent cutover, Deployment-owned pods were +// being emitted with owner=[{ReplicaSet, }] because the +// converter forwarded raw OwnerReferences. The collector keys +// k8s_pods.workload_{type,name} off owner[0], so every UI/triage query +// filtered by workload_type="Deployment" started returning empty. The +// fix: when the immediate owner is a ReplicaSet, walk one hop via the +// RS informer and emit the RS's controller (the Deployment) instead. +// +// This authoritative lookup avoids the legacy regex heuristic +// (strip-pod-template-hash) used by trigger fingerprinting — works +// correctly for RSes created outside the Deployment controller +// (manual / operator-owned RSes whose names don't end in a hash) and +// doesn't break if the controller's hash format ever changes. +func TestPodConverter_ResolvesReplicaSetOwnerToDeployment(t *testing.T) { + rs := &appsv1.ReplicaSet{ + ObjectMeta: metav1.ObjectMeta{ + Name: "checkout-7f9d8c5b6", + Namespace: "shop", + OwnerReferences: []metav1.OwnerReference{{ + Kind: "Deployment", + Name: "checkout", + Controller: ptr.To(true), + }}, + }, + Spec: appsv1.ReplicaSetSpec{Replicas: ptr.To(int32(1))}, + } + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: "checkout-7f9d8c5b6-w8pqw", + Namespace: "shop", + OwnerReferences: []metav1.OwnerReference{{ + Kind: "ReplicaSet", + Name: "checkout-7f9d8c5b6", + Controller: ptr.To(true), + }}, + }, + } + + lookup := func(ns, name string) *appsv1.ReplicaSet { + if ns == "shop" && name == "checkout-7f9d8c5b6" { + return rs + } + return nil + } + + got, ok := newPodConverter(lookup)(pod) + if !ok { + t.Fatal("converter ok=false") + } + cfg := got.(map[string]any)["config"].(map[string]any) + owners := cfg["owner"].([]map[string]any) + if len(owners) != 1 { + t.Fatalf("owners = %v; want one resolved entry", owners) + } + if owners[0]["kind"] != "Deployment" || owners[0]["name"] != "checkout" { + t.Errorf("owners[0] = %v; want {kind: Deployment, name: checkout}", owners[0]) + } +} + +// When the RS isn't (yet) in cache, the converter must fall back to +// emitting the immediate ReplicaSet owner unchanged. The next +// pod-status event self-heals once WaitForCacheSync completes. Without +// this fallback, a startup race could drop pods entirely. +func TestPodConverter_FallsBackWhenReplicaSetMissing(t *testing.T) { + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: "p", + Namespace: "shop", + OwnerReferences: []metav1.OwnerReference{{ + Kind: "ReplicaSet", Name: "missing-rs", + }}, + }, + } + got, ok := newPodConverter(func(string, string) *appsv1.ReplicaSet { return nil })(pod) + if !ok { + t.Fatal("converter ok=false") + } + cfg := got.(map[string]any)["config"].(map[string]any) + owners := cfg["owner"].([]map[string]any) + if len(owners) != 1 || owners[0]["kind"] != "ReplicaSet" || owners[0]["name"] != "missing-rs" { + t.Errorf("fallback owners = %v; want immediate RS unchanged", owners) + } +} + +// Non-Deployment workloads (DaemonSet, StatefulSet, Job, operator CRs) +// own pods directly. The converter must NOT touch those owner refs. +func TestPodConverter_PassesThroughNonReplicaSetOwners(t *testing.T) { + pod := &corev1.Pod{ + ObjectMeta: metav1.ObjectMeta{ + Name: "node-exporter-abc", + Namespace: "kube-system", + OwnerReferences: []metav1.OwnerReference{{ + Kind: "DaemonSet", Name: "node-exporter", + }}, + }, + } + // Provide a lookup that would panic if invoked — proves the + // converter short-circuits on non-RS kinds. + lookup := func(string, string) *appsv1.ReplicaSet { + t.Fatal("rsLookup should not be called for non-ReplicaSet owners") + return nil + } + got, ok := newPodConverter(lookup)(pod) + if !ok { + t.Fatal("converter ok=false") + } + cfg := got.(map[string]any)["config"].(map[string]any) + owners := cfg["owner"].([]map[string]any) + if len(owners) != 1 || owners[0]["kind"] != "DaemonSet" || owners[0]["name"] != "node-exporter" { + t.Errorf("daemonset passthrough owners = %v", owners) + } +} + // When a Pod owned by the workload has reported status, qos_class / ip // / conditions come from that Pod. func TestServiceDict_PodLookupFillsRuntimeFields(t *testing.T) { diff --git a/runner/pkg/discovery/service.go b/runner/pkg/discovery/service.go index 3c381d4..97aac5f 100644 --- a/runner/pkg/discovery/service.go +++ b/runner/pkg/discovery/service.go @@ -8,6 +8,7 @@ import ( "sync" "time" + appsv1 "k8s.io/api/apps/v1" corev1 "k8s.io/api/core/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/labels" @@ -70,8 +71,16 @@ func NewService(cs kubernetes.Interface, sink *Sink, resync time.Duration, logge } // RegisterPods wires the Pod informer + workqueue + converter. Call before Run(). +// +// The converter is bound to the ReplicaSet informer's indexer so each +// Pod's `owner` field is resolved up to the controlling Deployment +// (RS.OwnerReferences) instead of being emitted as the immediate +// ReplicaSet. This is what keeps `k8s_pods.workload_type = +// "Deployment"` at the backend; without it every Deployment-owned pod +// gets recorded as workload_type="ReplicaSet" and the UI workload +// queries return empty. func (s *Service) RegisterPods() { - s.register(s.factory.Core().V1().Pods().Informer(), TypeService, convertPod) + s.register(s.factory.Core().V1().Pods().Informer(), TypeService, newPodConverter(s.replicaSetLookup())) } // RegisterDeployments wires the Deployment informer. The converter is @@ -150,6 +159,33 @@ func (s *Service) podLookup() podLookupFn { } } +// replicaSetLookup returns a `(namespace, name) -> *ReplicaSet` closure +// backed by the ReplicaSet informer's indexer. Used by the Pod +// converter to walk the Pod → ReplicaSet → Deployment owner chain at +// emit time. Returns nil when the RS isn't (yet) in cache — caller +// falls back to emitting the ReplicaSet ref unchanged, and the next +// pod-status event re-emits with the correct owner once +// WaitForCacheSync completes. +// +// As with podLookup, GetIndexer() is taken eagerly here: +// SharedInformerFactory.ReplicaSets().Informer() is idempotent, so the +// indexer is the same shared instance RegisterReplicaSets wires up +// regardless of registration order. +func (s *Service) replicaSetLookup() replicaSetLookupFn { + indexer := s.factory.Apps().V1().ReplicaSets().Informer().GetIndexer() + return func(namespace, name string) *appsv1.ReplicaSet { + if indexer == nil { + return nil + } + obj, ok, err := indexer.GetByKey(namespace + "/" + name) + if err != nil || !ok { + return nil + } + rs, _ := obj.(*appsv1.ReplicaSet) + return rs + } +} + // RegisterJobs wires the Job informer (under "job" type). func (s *Service) RegisterJobs() { s.register(s.factory.Batch().V1().Jobs().Informer(), TypeJob, convertJob) @@ -211,9 +247,17 @@ func (s *Service) Run(ctx context.Context) error { s.factory.Start(stopCh) - // Wait for all caches to sync before emitting the first full snapshot. - if !cache.WaitForCacheSync(stopCh, s.cacheSyncFuncs()...) { - return errors.New("discovery: cache sync timed out") + // Wait at the factory level (not just on handler-bound informers) so + // auxiliary informers instantiated via lookup closures — replicaSetLookup, + // podLookup — are synced before the initial snapshot. Otherwise, a caller + // that wires RegisterPods without RegisterReplicaSets would race: the RS + // informer would still be started (factory tracks any informer ever + // requested), but a handler-only sync wait wouldn't include it, and the + // first pod snapshot could fire with unresolved ReplicaSet owners. + for typ, ok := range s.factory.WaitForCacheSync(stopCh) { + if !ok { + return fmt.Errorf("discovery: cache sync timed out for %v", typ) + } } s.logger.Info("discovery caches synced", "handlers", len(s.handlers)) @@ -258,14 +302,6 @@ func (s *Service) Run(ctx context.Context) error { return nil } -func (s *Service) cacheSyncFuncs() []cache.InformerSynced { - out := make([]cache.InformerSynced, 0, len(s.handlers)) - for _, h := range s.handlers { - out = append(out, h.informer.HasSynced) - } - return out -} - // emitAllSnapshots posts one full-load envelope per resource type by walking // each handler's indexer cache. func (s *Service) emitAllSnapshots(ctx context.Context) error { @@ -358,56 +394,70 @@ func enqueue(q workqueue.TypedRateLimitingInterface[string], obj any) { // convertPod produces the service-of-type-Pod dict. Same wire shape as // Deployment/StatefulSet/etc. — the collector reads pods through the // same `_process_discovery` path, keying off `service_key` -// and `type=="Pod"` for the terminal-state -// branch. +// and `type=="Pod"` for the terminal-state branch. +// +// This is the no-lookup variant kept for backward-compat / tests; the +// production `RegisterPods` path wires `newPodConverter(rsLookup)` so +// the owner field is resolved up to the controlling Deployment via the +// ReplicaSet informer. Without the lookup, a Pod owned by a ReplicaSet +// is emitted with `owner = [{kind: "ReplicaSet", ...}]` — the backend +// then keys its workload tables to the RS rather than the Deployment. func convertPod(obj any) (any, bool) { - p, ok := obj.(*corev1.Pod) - if !ok { - return nil, false - } - containers := make([]map[string]any, 0, len(p.Spec.Containers)) - for _, c := range p.Spec.Containers { - containers = append(containers, map[string]any{ - "name": c.Name, - "image": c.Image, - }) - } - owners := make([]map[string]any, 0, len(p.OwnerReferences)) - for _, o := range p.OwnerReferences { - owners = append(owners, map[string]any{"kind": o.Kind, "name": o.Name}) - } - // Pods don't have a "ready replica" semantic — use ready-container count - // for ready_pods and 1 for total_pods (it's a single pod). The UI uses - // these for service-detail rollups. - readyContainers := int32(0) - for _, cs := range p.Status.ContainerStatuses { - if cs.Ready { - readyContainers++ + return newPodConverter(nil)(obj) +} + +// newPodConverter binds a ReplicaSet lookup so the Pod's `owner` field +// can be resolved up one hop to the controlling Deployment. See +// ownerInfosWithRSLookup for the resolution rule; without rsLookup the +// emitted owner remains the immediate ReplicaSet, which breaks all +// downstream workload-keyed views (k8s_pods.workload_type stays +// "ReplicaSet" forever). +func newPodConverter(rsLookup replicaSetLookupFn) func(any) (any, bool) { + return func(obj any) (any, bool) { + p, ok := obj.(*corev1.Pod) + if !ok { + return nil, false + } + containers := make([]map[string]any, 0, len(p.Spec.Containers)) + for _, c := range p.Spec.Containers { + containers = append(containers, map[string]any{ + "name": c.Name, + "image": c.Image, + }) + } + // Pods don't have a "ready replica" semantic — use ready-container count + // for ready_pods and 1 for total_pods (it's a single pod). The UI uses + // these for service-detail rollups. + readyContainers := int32(0) + for _, cs := range p.Status.ContainerStatuses { + if cs.Ready { + readyContainers++ + } } + return map[string]any{ + "name": p.Name, + "namespace": p.Namespace, + "type": "Pod", + "service_key": p.Namespace + "/Pod/" + p.Name, + "resource_version": parseResourceVersion(p.ObjectMeta), + "creation_time": p.CreationTimestamp.UTC().Format(time.RFC3339), + "update_time": time.Now().UTC().UnixMilli(), + "deleted": false, + "classification": "None", + "total_pods": 1, + "ready_pods": readyContainers, + "is_helm_release": isHelmRelease(p.Labels, p.Annotations), + "node_name": p.Spec.NodeName, + "status": string(p.Status.Phase), + "restart_count": podRestartCounts(p), + "status_dict": nil, + "config": map[string]any{ + "labels": nonNilLabels(p.Labels), + "containers": containers, + "owner": ownerInfosWithRSLookup(p.OwnerReferences, p.Namespace, rsLookup), + }, + }, true } - return map[string]any{ - "name": p.Name, - "namespace": p.Namespace, - "type": "Pod", - "service_key": p.Namespace + "/Pod/" + p.Name, - "resource_version": parseResourceVersion(p.ObjectMeta), - "creation_time": p.CreationTimestamp.UTC().Format(time.RFC3339), - "update_time": time.Now().UTC().UnixMilli(), - "deleted": false, - "classification": "None", - "total_pods": 1, - "ready_pods": readyContainers, - "is_helm_release": isHelmRelease(p.Labels, p.Annotations), - "node_name": p.Spec.NodeName, - "status": string(p.Status.Phase), - "restart_count": podRestartCounts(p), - "status_dict": nil, - "config": map[string]any{ - "labels": nonNilLabels(p.Labels), - "containers": containers, - "owner": owners, - }, - }, true } // podRestartCounts produces the per-container restart_count map. From 88fc8f3fb4e0e7f2c88adb111432362e3c697242 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 1 Jun 2026 12:58:25 +0530 Subject: [PATCH 19/40] fix(runner): clear CodeQL + vulnerability findings (#441) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - proxy.go: drop arithmetic in make() capacity hint to clear CodeQL go/allocation-size-overflow (#45). HTTP header counts can't realistically overflow int, but removing the addition makes the analyzer signal go away permanently. Net behavior identical — map grows for extras as needed. - go.mod: bump go directive 1.26.0 -> 1.26.3 (CI uses GOTOOLCHAIN auto) to pick up stdlib fixes: GO-2026-4866/4869/4870/4946/4947/4971 (x509, TLS, tar, net). - go.mod: bump golang.org/x/net v0.49.0 -> v0.55.0 for GO-2026-4918 (HTTP/2 transport infinite loop) and GO-2026-5026 (idna). - go mod tidy bumps x/sys, x/term, x/text as transitive collateral. govulncheck ./... → No vulnerabilities found (was 8 reachable + 8 latent). go test -race ./... passes. Co-authored-by: Shiv <3078106+blue4209211@users.noreply.github.com> --- runner/go.mod | 12 ++++++------ runner/go.sum | 28 ++++++++++++++-------------- runner/pkg/grafana/proxy.go | 2 +- 3 files changed, 21 insertions(+), 21 deletions(-) diff --git a/runner/go.mod b/runner/go.mod index c48d494..211e41a 100644 --- a/runner/go.mod +++ b/runner/go.mod @@ -1,6 +1,6 @@ module github.com/nudgebee/nudgebee-agent -go 1.26.0 +go 1.26.3 require ( github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 @@ -89,11 +89,11 @@ require ( go.opentelemetry.io/otel/trace v1.41.0 // indirect go.yaml.in/yaml/v2 v2.4.3 // indirect go.yaml.in/yaml/v3 v3.0.4 // indirect - golang.org/x/crypto v0.48.0 // indirect - golang.org/x/net v0.49.0 // indirect - golang.org/x/sys v0.42.0 // indirect - golang.org/x/term v0.40.0 // indirect - golang.org/x/text v0.34.0 // indirect + golang.org/x/crypto v0.51.0 // indirect + golang.org/x/net v0.55.0 // indirect + golang.org/x/sys v0.45.0 // indirect + golang.org/x/term v0.43.0 // indirect + golang.org/x/text v0.37.0 // indirect golang.org/x/time v0.14.0 // indirect google.golang.org/protobuf v1.36.12-0.20260120151049-f2248ac996af // indirect gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect diff --git a/runner/go.sum b/runner/go.sum index a2901da..df8ff04 100644 --- a/runner/go.sum +++ b/runner/go.sum @@ -209,12 +209,12 @@ go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0= go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8= go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc= go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg= -golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts= -golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos= -golang.org/x/mod v0.32.0 h1:9F4d3PHLljb6x//jOyokMv3eX+YDeepZSEo3mFJy93c= -golang.org/x/mod v0.32.0/go.mod h1:SgipZ/3h2Ci89DlEtEXWUk/HteuRin+HHhN+WbNhguU= -golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o= -golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8= +golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI= +golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8= +golang.org/x/mod v0.35.0 h1:Ww1D637e6Pg+Zb2KrWfHQUnH2dQRLBQyAtpr/haaJeM= +golang.org/x/mod v0.35.0/go.mod h1:+GwiRhIInF8wPm+4AoT6L0FA1QWAad3OMdTRx4tFYlU= +golang.org/x/net v0.55.0 h1:bcvxaJn3e1U6InsFWt1JUq1aSjnRxLzT2rtD2KfkDF8= +golang.org/x/net v0.55.0/go.mod h1:L5U2KuzuOe1lY7Z+aWVIKK6qEeJXnXV9yzGA+WCHJww= golang.org/x/oauth2 v0.36.0 h1:peZ/1z27fi9hUOFCAZaHyrpWG5lwe0RJEEEeH0ThlIs= golang.org/x/oauth2 v0.36.0/go.mod h1:YDBUJMTkDnJS+A4BP4eZBjCqtokkg1hODuPjwiGPO7Q= golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4= @@ -222,16 +222,16 @@ golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0= golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo= -golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw= -golang.org/x/term v0.40.0 h1:36e4zGLqU4yhjlmxEaagx2KuYbJq3EwY8K943ZsHcvg= -golang.org/x/term v0.40.0/go.mod h1:w2P8uVp06p2iyKKuvXIm7N/y0UCRt3UfJTfZ7oOpglM= -golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk= -golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA= +golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY= +golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw= +golang.org/x/term v0.43.0 h1:S4RLU2sB31O/NCl+zFN9Aru9A/Cq2aqKpTZJ6B+DwT4= +golang.org/x/term v0.43.0/go.mod h1:lrhlHNdQJHO+1qVYiHfFKVuVioJIheAc3fBSMFYEIsk= +golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc= +golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38= golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI= golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4= -golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc= -golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg= +golang.org/x/tools v0.44.0 h1:UP4ajHPIcuMjT1GqzDWRlalUEoY+uzoZKnhOjbIPD2c= +golang.org/x/tools v0.44.0/go.mod h1:KA0AfVErSdxRZIsOVipbv3rQhVXTnlU6UhKxHd1seDI= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= gomodules.xyz/jsonpatch/v2 v2.4.0 h1:Ci3iUJyx9UeRx7CeFN8ARgGbkESwJK+KB9lLcWxY/Zw= gomodules.xyz/jsonpatch/v2 v2.4.0/go.mod h1:AH3dM2RI6uoBZxn3LVrfvJ3E0/9dG4cSrbuBJT4moAY= diff --git a/runner/pkg/grafana/proxy.go b/runner/pkg/grafana/proxy.go index bc4968c..bb58355 100644 --- a/runner/pkg/grafana/proxy.go +++ b/runner/pkg/grafana/proxy.go @@ -142,7 +142,7 @@ func (p *Proxy) HandlePrometheus(ctx context.Context, req *Request) *Response { // callers can carry their own X-Scope-OrgID while the agent's // configured PROMETHEUS_HEADERS pile on too). Nil-safe in both args. func mergeHeaders(base, extras http.Header) map[string][]string { - out := make(map[string][]string, len(base)+len(extras)) + out := make(map[string][]string, len(base)) for k, vs := range base { out[k] = append([]string(nil), vs...) } From 698f7a98ffe3d285b2bcf5ef60ca9e57031c8652 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 1 Jun 2026 14:34:06 +0530 Subject: [PATCH 20/40] chore(deps): bump helm/chart-testing-action from 2.7.0 to 2.8.0 (#440) Bumps [helm/chart-testing-action](https://github.com/helm/chart-testing-action) from 2.7.0 to 2.8.0. - [Release notes](https://github.com/helm/chart-testing-action/releases) - [Commits](https://github.com/helm/chart-testing-action/compare/0d28d3144d3a25ea2cc349d6e59901c4ff469b3b...6ec842c01de15ebb84c8627d2744a0c2f2755c9f) --- updated-dependencies: - dependency-name: helm/chart-testing-action dependency-version: 2.8.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Mayank Pande --- .github/workflows/helm-dev-lint.yml | 2 +- .github/workflows/helm-prod-test.yml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/helm-dev-lint.yml b/.github/workflows/helm-dev-lint.yml index 633aba6..bead9b5 100644 --- a/.github/workflows/helm-dev-lint.yml +++ b/.github/workflows/helm-dev-lint.yml @@ -36,7 +36,7 @@ jobs: python-version: '3.12' - name: Set up chart-testing - uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b # v2.7.0 + uses: helm/chart-testing-action@6ec842c01de15ebb84c8627d2744a0c2f2755c9f # v2.8.0 - name: Run chart-testing (lint) run: ct lint --debug --config ./.github/configs/ct.yaml --lint-conf ./.github/configs/lintconf.yaml --check-version-increment=false diff --git a/.github/workflows/helm-prod-test.yml b/.github/workflows/helm-prod-test.yml index 800da77..dbaa772 100644 --- a/.github/workflows/helm-prod-test.yml +++ b/.github/workflows/helm-prod-test.yml @@ -36,7 +36,7 @@ jobs: python-version: '3.12' - name: Set up chart-testing - uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b # v2.7.0 + uses: helm/chart-testing-action@6ec842c01de15ebb84c8627d2744a0c2f2755c9f # v2.8.0 - name: List changed charts id: list-changed From 14804017ded02d4c5847e0cc79761e959aef71fa Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 1 Jun 2026 14:38:15 +0530 Subject: [PATCH 21/40] chore(deps): bump actions/setup-python from 5.6.0 to 6.2.0 (#439) Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.6.0 to 6.2.0. - [Release notes](https://github.com/actions/setup-python/releases) - [Commits](https://github.com/actions/setup-python/compare/a26af69be951a213d495a4c3e4e4022e16d87065...a309ff8b426b58ec0e2a45f0f869d46889d02405) --- updated-dependencies: - dependency-name: actions/setup-python dependency-version: '6' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Mayank Pande --- .github/workflows/helm-dev-lint.yml | 2 +- .github/workflows/helm-prod-test.yml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/helm-dev-lint.yml b/.github/workflows/helm-dev-lint.yml index bead9b5..0b4c45f 100644 --- a/.github/workflows/helm-dev-lint.yml +++ b/.github/workflows/helm-dev-lint.yml @@ -31,7 +31,7 @@ jobs: with: version: v3.14.0 - - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5 + - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0 with: python-version: '3.12' diff --git a/.github/workflows/helm-prod-test.yml b/.github/workflows/helm-prod-test.yml index dbaa772..d792dce 100644 --- a/.github/workflows/helm-prod-test.yml +++ b/.github/workflows/helm-prod-test.yml @@ -31,7 +31,7 @@ jobs: with: version: v3.14.0 - - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5 + - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0 with: python-version: '3.12' From 1bc42ad451318d2c44d39d2ecb8b505a4da5a5f5 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 1 Jun 2026 14:42:10 +0530 Subject: [PATCH 22/40] chore(deps): bump actions/checkout from 3.6.0 to 6.0.2 (#438) Bumps [actions/checkout](https://github.com/actions/checkout) from 3.6.0 to 6.0.2. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/v3.6.0...de0fac2e4500dabe0009e67214ff5f5447ce83dd) --- updated-dependencies: - dependency-name: actions/checkout dependency-version: '6' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Mayank Pande --- .github/workflows/helm-dev-lint.yml | 2 +- .github/workflows/helm-prod-test.yml | 2 +- .github/workflows/release-rc.yml | 2 +- .github/workflows/release.yml | 2 +- .github/workflows/update-image-tags.yml | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/.github/workflows/helm-dev-lint.yml b/.github/workflows/helm-dev-lint.yml index 0b4c45f..6b3a2b1 100644 --- a/.github/workflows/helm-dev-lint.yml +++ b/.github/workflows/helm-dev-lint.yml @@ -16,7 +16,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4 + uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2 with: fetch-depth: 0 diff --git a/.github/workflows/helm-prod-test.yml b/.github/workflows/helm-prod-test.yml index d792dce..92d5523 100644 --- a/.github/workflows/helm-prod-test.yml +++ b/.github/workflows/helm-prod-test.yml @@ -16,7 +16,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4 + uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2 with: fetch-depth: 0 diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index 370f167..5bf447d 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -13,7 +13,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3 + uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2 with: fetch-depth: 0 diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 91abc91..dc9c6fd 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -13,7 +13,7 @@ jobs: runs-on: ubuntu-latest steps: - name: Checkout - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3 + uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2 with: fetch-depth: 0 diff --git a/.github/workflows/update-image-tags.yml b/.github/workflows/update-image-tags.yml index 7dc0c76..503eda3 100644 --- a/.github/workflows/update-image-tags.yml +++ b/.github/workflows/update-image-tags.yml @@ -19,7 +19,7 @@ jobs: packages: read steps: - name: Checkout PR branch - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3 + uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2 with: token: ${{ secrets.GITHUB_TOKEN }} ref: ${{ github.head_ref }} From 2b47dbc77281f09ce51ef3bd8cbbac80c9968533 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Mon, 1 Jun 2026 15:54:33 +0530 Subject: [PATCH 23/40] chore(deps): bump azure/setup-helm from 3.5 to 5 (#437) * chore(deps): bump azure/setup-helm from 3.5 to 5 Bumps [azure/setup-helm](https://github.com/azure/setup-helm) from 3.5 to 5. - [Release notes](https://github.com/azure/setup-helm/releases) - [Changelog](https://github.com/Azure/setup-helm/blob/main/CHANGELOG.md) - [Commits](https://github.com/azure/setup-helm/compare/v3.5...dda3372f752e03dde6b3237bc9431cdc2f7a02a2) --- updated-dependencies: - dependency-name: azure/setup-helm dependency-version: '5' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] * chore: update image tags for main release --------- Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Mayank Pande Co-authored-by: github-actions[bot] --- .github/workflows/helm-dev-lint.yml | 2 +- .github/workflows/helm-prod-test.yml | 2 +- .github/workflows/release-rc.yml | 2 +- .github/workflows/release.yml | 2 +- charts/nudgebee-agent/values.yaml | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/.github/workflows/helm-dev-lint.yml b/.github/workflows/helm-dev-lint.yml index 6b3a2b1..42cb81d 100644 --- a/.github/workflows/helm-dev-lint.yml +++ b/.github/workflows/helm-dev-lint.yml @@ -27,7 +27,7 @@ jobs: helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts helm repo add bitnami https://charts.bitnami.com/bitnami - - uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4 + - uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0 with: version: v3.14.0 diff --git a/.github/workflows/helm-prod-test.yml b/.github/workflows/helm-prod-test.yml index 92d5523..ce7effe 100644 --- a/.github/workflows/helm-prod-test.yml +++ b/.github/workflows/helm-prod-test.yml @@ -27,7 +27,7 @@ jobs: helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts helm repo add bitnami https://charts.bitnami.com/bitnami - - uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4 + - uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0 with: version: v3.14.0 diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index 5bf447d..88973a8 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -23,7 +23,7 @@ jobs: git config user.email "$GITHUB_ACTOR@users.noreply.github.com" - name: Install Helm - uses: azure/setup-helm@5119fcb9089d432beecbf79bb2c7915207344b78 # v3 + uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0 with: version: v3.10.0 diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index dc9c6fd..ac7255c 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -23,7 +23,7 @@ jobs: git config user.email "$GITHUB_ACTOR@users.noreply.github.com" - name: Install Helm - uses: azure/setup-helm@5119fcb9089d432beecbf79bb2c7915207344b78 # v3 + uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5.0.0 with: version: v3.10.0 diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 561054c..bbf5520 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-05-26T07-35-13_511a9e0b1ea6318caea7031edd59fe79d32930ca + tag: 2026-06-01T08-54-45_88fc8f3fb4e0e7f2c88adb111432362e3c697242 imagePullPolicy: IfNotPresent resources: requests: From 597c08238e18913162c1532b357dc1023ec8f339 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 1 Jun 2026 16:07:59 +0530 Subject: [PATCH 24/40] chore(runner): bump golang.org/x/crypto to v0.52.0 (#443) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Clears 13 osv-scanner findings (GO-2026-5005..5033) flagged by OpenSSF Scorecard's Vulnerabilities check. All were uncalled (govulncheck still showed 0 reachable), but Scorecard counts declared deps regardless of reachability. osv-scanner -r . → No issues found. go test ./... passes under go1.26.3. --- runner/go.mod | 2 +- runner/go.sum | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/runner/go.mod b/runner/go.mod index 211e41a..8df135f 100644 --- a/runner/go.mod +++ b/runner/go.mod @@ -89,7 +89,7 @@ require ( go.opentelemetry.io/otel/trace v1.41.0 // indirect go.yaml.in/yaml/v2 v2.4.3 // indirect go.yaml.in/yaml/v3 v3.0.4 // indirect - golang.org/x/crypto v0.51.0 // indirect + golang.org/x/crypto v0.52.0 // indirect golang.org/x/net v0.55.0 // indirect golang.org/x/sys v0.45.0 // indirect golang.org/x/term v0.43.0 // indirect diff --git a/runner/go.sum b/runner/go.sum index df8ff04..d17a6b0 100644 --- a/runner/go.sum +++ b/runner/go.sum @@ -209,8 +209,8 @@ go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0= go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8= go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc= go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg= -golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI= -golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8= +golang.org/x/crypto v0.52.0 h1:RMs7fP2rXdep0CftQlK8Uf+kibLm7qkCcradZWYz988= +golang.org/x/crypto v0.52.0/go.mod h1:1QgfPxDqh0T2M/elOJtp9RvuR95kVjir0e6/BvEmGbc= golang.org/x/mod v0.35.0 h1:Ww1D637e6Pg+Zb2KrWfHQUnH2dQRLBQyAtpr/haaJeM= golang.org/x/mod v0.35.0/go.mod h1:+GwiRhIInF8wPm+4AoT6L0FA1QWAad3OMdTRx4tFYlU= golang.org/x/net v0.55.0 h1:bcvxaJn3e1U6InsFWt1JUq1aSjnRxLzT2rtD2KfkDF8= From 9cc96cf11ee44201e633cf7e53a9b5e15f3d40c8 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Mon, 1 Jun 2026 17:04:43 +0530 Subject: [PATCH 25/40] test(config): add Fuzz targets for ParseHeaders and ParseTargets (#444) Clears OpenSSF Scorecard's Fuzzing check (alert #41). Both parsers handle env-var input and were previously untested under random input; the fuzz targets assert they never panic and that returned keys/values are always non-empty and trimmed. Verified locally: ~2.2M execs in 10s per target, no crashes. --- runner/pkg/config/config_fuzz_test.go | 80 +++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 runner/pkg/config/config_fuzz_test.go diff --git a/runner/pkg/config/config_fuzz_test.go b/runner/pkg/config/config_fuzz_test.go new file mode 100644 index 0000000..9bf4af5 --- /dev/null +++ b/runner/pkg/config/config_fuzz_test.go @@ -0,0 +1,80 @@ +package config + +import ( + "strings" + "testing" +) + +// FuzzParseHeaders asserts ParseHeaders never panics and produces a +// well-formed header map for any input. +func FuzzParseHeaders(f *testing.F) { + for _, seed := range []string{ + "", + "X-Scope-OrgID: tenant-a", + "X-Scope-OrgID: tenant-a, X-Auth: secret", + " X-Foo : bar ", + ":no-key", + "no-colon", + "k:", + ",,,", + "k:v,", + "k1:v1,,k2:v2", + "k:multi:colons:here", + "\x00:\x00", + } { + f.Add(seed) + } + + f.Fuzz(func(t *testing.T, s string) { + h := ParseHeaders(s) + for k, vs := range h { + if k == "" { + t.Fatalf("empty key in result: %q", s) + } + if k != strings.TrimSpace(k) { + t.Fatalf("untrimmed key %q from %q", k, s) + } + for _, v := range vs { + if v != strings.TrimSpace(v) { + t.Fatalf("untrimmed value %q for key %q from %q", v, k, s) + } + } + } + }) +} + +// FuzzParseTargets asserts ParseTargets never panics and produces a +// well-formed target map for any input. +func FuzzParseTargets(f *testing.F) { + for _, seed := range []string{ + "", + "foo=http://foo", + "foo=http://foo;bar=http://bar", + " foo = http://foo ", + "=no-key", + "no-equals", + "foo=", + ";;;", + "foo=bar;", + "foo=a=b=c", + "k1=v1;;k2=v2", + "\x00=\x00", + } { + f.Add(seed) + } + + f.Fuzz(func(t *testing.T, s string) { + m := ParseTargets(s) + for k, v := range m { + if k == "" { + t.Fatalf("empty key in result: %q", s) + } + if k != strings.TrimSpace(k) { + t.Fatalf("untrimmed key %q from %q", k, s) + } + if v != strings.TrimSpace(v) { + t.Fatalf("untrimmed value %q for key %q from %q", v, k, s) + } + } + }) +} From 10ba4386e158ca6108aff1b8d513507d8c47cc09 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 09:53:59 +0530 Subject: [PATCH 26/40] fix(runner): handle legacy create_or_replace_alert_rule payload shape (#446) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * fix(chart): make profiler image configurable + auto-bump The agent's PROFILER_IMAGE env defaulted to a binary-baked URL (registry.dev.nudgebee.pollux.in/nudgebee-profiler-{}:latest) whose :latest manifest had a missing layer, so debugger pods hit ImagePullBackOff and the pod_profiler action failed with "wait debugger ready: context deadline exceeded". - values.yaml: new runner.profilerImage defaulting to ghcr.io/nudgebee/application-profiler-{}:dc5fd6d - _helpers.tpl: render PROFILER_IMAGE only when set; empty value falls back to the agent binary's compiled default - update-image-tags.yml: auto-bump runner.profilerImage to newest short-SHA from ghcr.io/nudgebee/application-profiler-bpf (all variants share the same SHA per release.yml) * fix(runner): handle legacy create_or_replace_alert_rule payload shape The api-server's eventrule path sends create_or_replace_alert_rule with a flat {alert, expr, duration, annotations, labels} payload — the Robusta playbook shape — not a full PrometheusRule manifest. The current handler requires a manifest with metadata.name+namespace+spec, so every call from the api-server failed with "rule.metadata.name and namespace are required" and the corresponding event_rules DB row was created without an actual PrometheusRule CR in the cluster. This change keeps both shapes behind the same action name: - Manifest path (existing): unchanged for callers that pass a full CR. - Legacy path (new): translates {alert, expr, duration, annotations, labels} into a single rule appended to a canonical shared CR named nudgebee-prometheus.rules in the agent's install namespace (INSTALLATION_NAMESPACE, falls back to ScannerNamespace). If a rule with the same alert name already exists in any group, it's replaced in place; otherwise it's appended to the first group. If the CR doesn't exist, a new one is created carrying the release.app=nudgebee- resource-management label so an in-cluster legacy runner can still find it via the same label selector. delete_alert_rule gets the same shape-routing: {alert} drops the rule from the canonical CR (idempotent for missing CR / missing rule); {namespace, name} still deletes a whole CR. Auth: create_or_replace_alert_rule and delete_alert_rule are added to the light-action allowlist. Most Group-D mutations stay RSA-required, but these two travel api-server -> relay -> agent and are gated by the relay's shared secret today; without the carve-out the agent silently rejects every call ("not in light-action allowlist"). The new comment above the allowlist write spells out the trust posture so a future reader doesn't accidentally un-carve them. Tests cover create-when-absent, append-when-new, replace-in-place, delete-by-alert, missing-CR no-op, unknown-alert no-op, and the handler-level shape router for both create and delete. * chore: update image tags for main release * fix(runner): retry-on-conflict around legacy alert-rule CR + safer str helper Review feedback from #446: - CreateOrReplaceAlertRule and DeleteAlertRule mutate a shared CR (nudgebee-prometheus.rules). Two concurrent UI sessions will land between Get and Update and hit 409 Conflict. Wrap the read-modify- write cycle in retry.RetryOnConflict so the second writer rereads and re-applies its patch instead of failing the user-facing action. The AlreadyExists branch in the create-fallback (two callers racing to create the CR) is converted to NewConflict so the same retry loop handles it. - Replace direct r["alert"] != alert comparisons with the package's str(r, "alert") helper. Same defensive idiom used everywhere else in handlers.go; keeps the equality check on string-typed values only. - main.go: log a warning at startup when both INSTALLATION_NAMESPACE and SCANNER_NAMESPACE are unset, so an operator sees the misconfig before the first action fails. --------- Co-authored-by: github-actions[bot] Co-authored-by: Shiv <3078106+blue4209211@users.noreply.github.com> --- .github/workflows/update-image-tags.yml | 9 + charts/nudgebee-agent/templates/_helpers.tpl | 4 + charts/nudgebee-agent/values.yaml | 6 +- runner/cmd/agent/main.go | 22 +- runner/pkg/mutate/alertrules.go | 225 ++++++++++++++++ runner/pkg/mutate/alertrules_test.go | 261 +++++++++++++++++++ runner/pkg/mutate/handlers.go | 55 ++++ runner/pkg/mutate/mutate.go | 9 + 8 files changed, 589 insertions(+), 2 deletions(-) diff --git a/.github/workflows/update-image-tags.yml b/.github/workflows/update-image-tags.yml index 503eda3..0d6000c 100644 --- a/.github/workflows/update-image-tags.yml +++ b/.github/workflows/update-image-tags.yml @@ -53,6 +53,15 @@ jobs: echo "nudgebee_kubewatch_image: $nudgebee_kubewatch_image" yq -i ".kubewatch.image.tag=\"$nudgebee_kubewatch_image\"" values.yaml + # application-profiler: newest short-SHA tag from GHCR (bpf is canonical; + # all variants share the same SHA since release.yml builds them together). + # The `{}` placeholder is preserved — the agent substitutes it per variant at runtime. + nudgebee_profiler_sha=$(gh api -H "Accept: application/vnd.github+json" \ + "/orgs/nudgebee/packages/container/application-profiler-bpf/versions?per_page=20" \ + --jq '[.[].metadata.container.tags[]] | map(select(test("^[0-9a-f]{7}$"))) | .[0]') + echo "nudgebee_profiler_sha: $nudgebee_profiler_sha" + yq -i ".runner.profilerImage=\"ghcr.io/nudgebee/application-profiler-{}:$nudgebee_profiler_sha\"" values.yaml + - name: Commit updated image tags env: BASE_REF: ${{ github.base_ref }} diff --git a/charts/nudgebee-agent/templates/_helpers.tpl b/charts/nudgebee-agent/templates/_helpers.tpl index a6db6b4..ebfa034 100644 --- a/charts/nudgebee-agent/templates/_helpers.tpl +++ b/charts/nudgebee-agent/templates/_helpers.tpl @@ -87,6 +87,10 @@ Runner container template. Invoked with root context: include "nudgebee.runner.c value: {{ .Release.Namespace }} - name: SCANNER_SERVICE_ACCOUNT value: {{ include "nudgebee-agent.fullname" . }}-runner-service-account + {{- if .Values.runner.profilerImage }} + - name: PROFILER_IMAGE + value: {{ .Values.runner.profilerImage | quote }} + {{- end }} {{- if .Values.rsa }} - name: MUTATE_ENABLED value: "true" diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index bbf5520..a9b359a 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,11 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-06-01T08-54-45_88fc8f3fb4e0e7f2c88adb111432362e3c697242 + tag: 2026-06-01T11-35-01_9cc96cf11ee44201e633cf7e53a9b5e15f3d40c8 + # Image template the pod_profiler action launches debugger pods from. + # The agent substitutes `{}` for the variant (bpf, jvm, python, perf, ruby). + # Surfaces as PROFILER_IMAGE; leave empty to fall back to the binary default. + profilerImage: "ghcr.io/nudgebee/application-profiler-{}:dc5fd6d" imagePullPolicy: IfNotPresent resources: requests: diff --git a/runner/cmd/agent/main.go b/runner/cmd/agent/main.go index 1504bbf..1efbac0 100644 --- a/runner/cmd/agent/main.go +++ b/runner/cmd/agent/main.go @@ -478,6 +478,18 @@ func run(ctx context.Context, logger *slog.Logger, cfg *config.Config) error { } mut := mutate.New(typedKube, cfg.AlertManagerURL, amHeaders) mut.SetDynamic(dynamicKube) // unlocks PrometheusRule CRUD actions + // INSTALLATION_NAMESPACE is set by the chart via the downward API. + // Required by the legacy alert-rule path; falls back to the scanner + // namespace (also chart-set) so a hand-rolled deployment without + // INSTALLATION_NAMESPACE still resolves to the right namespace. + installNs := os.Getenv("INSTALLATION_NAMESPACE") + if installNs == "" { + installNs = cfg.ScannerNamespace + } + if installNs == "" { + logger.Warn("install namespace is empty (neither INSTALLATION_NAMESPACE nor SCANNER_NAMESPACE set) — legacy alert-rule actions will error at request time") + } + mut.SetNamespace(installNs) if cfg.LokiRulesURL != "" { lokiRulesHeaders := map[string]string{} for k, v := range config.ParseHeaders(os.Getenv("LOKI_RULES_HEADERS")) { @@ -489,10 +501,18 @@ func run(ctx context.Context, logger *slog.Logger, cfg *config.Config) error { } mh := mutate.Handlers(mut) maps.Copy(handlers, mh) - // Mutations REQUIRE RSA partial-keys in production. NOT light-action. + // Most Group-D mutations REQUIRE RSA partial-keys in production and + // stay out of lightActions. The two PrometheusRule legacy actions are + // the exception: api-server → relay → agent today sends them unsigned + // behind the relay's shared-secret gate, same posture as the read + // primitives. Carving them in here closes the gap without forcing + // signing into api-server's relay client. + lightActions["create_or_replace_alert_rule"] = struct{}{} + lightActions["delete_alert_rule"] = struct{}{} logger.Info("mutate enabled", "alertmanager_url", cfg.AlertManagerURL, "loki_rules_url", cfg.LokiRulesURL, + "install_namespace", installNs, "actions", len(mh)) } diff --git a/runner/pkg/mutate/alertrules.go b/runner/pkg/mutate/alertrules.go index c6a209c..4f031a2 100644 --- a/runner/pkg/mutate/alertrules.go +++ b/runner/pkg/mutate/alertrules.go @@ -11,6 +11,7 @@ import ( "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" "k8s.io/apimachinery/pkg/runtime/schema" "k8s.io/client-go/dynamic" + "k8s.io/client-go/util/retry" ) // PrometheusRule CRD GVR. Standard prometheus-operator group. @@ -84,3 +85,227 @@ func (m *Mutator) DeletePrometheusRule(ctx context.Context, namespace, name stri } return nil } + +// Legacy alert-rule path: the api-server's eventrule code (and the older +// Robusta playbook) sends `create_or_replace_alert_rule` with a flat +// {alert, expr, duration, annotations, labels} payload — NOT a full +// PrometheusRule manifest. We mutate a single shared CR in the agent's +// install namespace so existing installations (which already carry this CR +// from the legacy runner) keep working without a manifest-shape migration +// in api-server. +const ( + // LegacyAlertRuleCRDName is the canonical CR the legacy runner created. + // We reuse the exact name so an existing installation's rules survive + // the migration; a fresh installation gets a CR with this name too. + LegacyAlertRuleCRDName = "nudgebee-prometheus.rules" + + // LegacyAlertRuleGroupName is the group inside the CR the legacy runner + // appended into. New rules added by the legacy path go here. + LegacyAlertRuleGroupName = "kubernetes-apps" + + // LegacyAlertRuleLabelKey/Value matches the label_selector the Robusta + // playbook used to identify the canonical CR — preserved on freshly + // created CRs so a parallel legacy runner can still find them. + LegacyAlertRuleLabelKey = "release.app" + LegacyAlertRuleLabelValue = "nudgebee-resource-management" +) + +// LegacyAlertRuleParams is the wire shape `create_or_replace_alert_rule` +// arrives with. Duration is translated to the CR's `for` field. +type LegacyAlertRuleParams struct { + Alert string + Expr string + Duration string + Annotations map[string]any + Labels map[string]any +} + +// CreateOrReplaceAlertRule applies a single alert rule to the canonical +// PrometheusRule CR. If a rule with the same `alert` name already exists in +// any group, it is replaced in place; otherwise the rule is appended to the +// first group. If the CR doesn't exist yet, it is created with the rule +// inside a single group named LegacyAlertRuleGroupName. +func (m *Mutator) CreateOrReplaceAlertRule(ctx context.Context, p LegacyAlertRuleParams) (any, error) { + if m.dynamic == nil { + return nil, errors.New("mutate: dynamic client not configured") + } + if m.Namespace == "" { + return nil, errors.New("mutate: agent namespace not configured (set INSTALLATION_NAMESPACE)") + } + if p.Alert == "" || p.Expr == "" { + return nil, errors.New("mutate: alert and expr required") + } + + rule := map[string]any{ + "alert": p.Alert, + "expr": p.Expr, + "annotations": p.Annotations, + "labels": p.Labels, + } + if p.Duration != "" { + rule["for"] = p.Duration + } + + ri := m.dynamic.Resource(prometheusRuleGVR).Namespace(m.Namespace) + // Shared CR + concurrent UI sessions → 409 Conflict whenever two callers + // land between Get and Update. RetryOnConflict re-reads + re-applies the + // patch on each conflict; the AlreadyExists branch covers the rare case + // where two callers race to create the CR at once (we surface that as a + // Conflict so the retry loop handles it the same way). + var result *unstructured.Unstructured + err := retry.RetryOnConflict(retry.DefaultRetry, func() error { + existing, gerr := ri.Get(ctx, LegacyAlertRuleCRDName, metav1.GetOptions{}) + if apierrors.IsNotFound(gerr) { + u := newLegacyAlertRuleCR(m.Namespace, []any{rule}) + created, cerr := ri.Create(ctx, u, metav1.CreateOptions{}) + if cerr != nil { + if apierrors.IsAlreadyExists(cerr) { + return apierrors.NewConflict( + schema.GroupResource{Group: prometheusRuleGVR.Group, Resource: prometheusRuleGVR.Resource}, + LegacyAlertRuleCRDName, cerr) + } + return cerr + } + result = created + return nil + } + if gerr != nil { + return gerr + } + + groups, _, _ := unstructured.NestedSlice(existing.Object, "spec", "groups") + if len(groups) == 0 { + groups = []any{map[string]any{ + "name": LegacyAlertRuleGroupName, + "rules": []any{rule}, + }} + } else if !replaceLegacyRuleInPlace(groups, p.Alert, rule) { + first, _ := groups[0].(map[string]any) + if first == nil { + first = map[string]any{"name": LegacyAlertRuleGroupName} + } + rules, _ := first["rules"].([]any) + first["rules"] = append(rules, rule) + groups[0] = first + } + if serr := unstructured.SetNestedSlice(existing.Object, groups, "spec", "groups"); serr != nil { + return serr + } + + updated, uerr := ri.Update(ctx, existing, metav1.UpdateOptions{}) + if uerr != nil { + return uerr + } + result = updated + return nil + }) + if err != nil { + return nil, err + } + return result.UnstructuredContent(), nil +} + +// DeleteAlertRule removes a single rule by `alert` name from the canonical +// PrometheusRule CR. Missing CR or missing rule are no-ops — matches the +// legacy semantics so a delete-after-uninstall doesn't error. +func (m *Mutator) DeleteAlertRule(ctx context.Context, alert string) error { + if m.dynamic == nil { + return errors.New("mutate: dynamic client not configured") + } + if m.Namespace == "" { + return errors.New("mutate: agent namespace not configured (set INSTALLATION_NAMESPACE)") + } + if alert == "" { + return errors.New("mutate: alert name required") + } + ri := m.dynamic.Resource(prometheusRuleGVR).Namespace(m.Namespace) + // Same conflict story as CreateOrReplaceAlertRule: shared CR, concurrent + // writers. Retry re-reads + re-applies the deletion on 409. + return retry.RetryOnConflict(retry.DefaultRetry, func() error { + existing, gerr := ri.Get(ctx, LegacyAlertRuleCRDName, metav1.GetOptions{}) + if apierrors.IsNotFound(gerr) { + return nil + } + if gerr != nil { + return gerr + } + groups, _, _ := unstructured.NestedSlice(existing.Object, "spec", "groups") + changed := false + for gi := range groups { + g, _ := groups[gi].(map[string]any) + if g == nil { + continue + } + rules, _ := g["rules"].([]any) + kept := make([]any, 0, len(rules)) + for _, raw := range rules { + r, _ := raw.(map[string]any) + if r != nil && str(r, "alert") == alert { + changed = true + continue + } + kept = append(kept, raw) + } + g["rules"] = kept + groups[gi] = g + } + if !changed { + return nil + } + if serr := unstructured.SetNestedSlice(existing.Object, groups, "spec", "groups"); serr != nil { + return serr + } + _, uerr := ri.Update(ctx, existing, metav1.UpdateOptions{}) + return uerr + }) +} + +// replaceLegacyRuleInPlace walks each group's rules and replaces the first +// entry whose `alert` equals the target name. Returns true if a replacement +// happened. +func replaceLegacyRuleInPlace(groups []any, alert string, rule map[string]any) bool { + for gi := range groups { + g, _ := groups[gi].(map[string]any) + if g == nil { + continue + } + rules, _ := g["rules"].([]any) + for ri := range rules { + r, _ := rules[ri].(map[string]any) + if r == nil || str(r, "alert") != alert { + continue + } + rules[ri] = rule + g["rules"] = rules + groups[gi] = g + return true + } + } + return false +} + +// newLegacyAlertRuleCR builds a fresh canonical PrometheusRule CR with the +// Robusta-compat labels so a parallel legacy runner can still find it via +// the same label selector. +func newLegacyAlertRuleCR(namespace string, rules []any) *unstructured.Unstructured { + return &unstructured.Unstructured{Object: map[string]any{ + "apiVersion": "monitoring.coreos.com/v1", + "kind": "PrometheusRule", + "metadata": map[string]any{ + "name": LegacyAlertRuleCRDName, + "namespace": namespace, + "labels": map[string]any{ + LegacyAlertRuleLabelKey: LegacyAlertRuleLabelValue, + "role": "alert-rules", + }, + }, + "spec": map[string]any{ + "groups": []any{ + map[string]any{ + "name": LegacyAlertRuleGroupName, + "rules": rules, + }, + }, + }, + }} +} diff --git a/runner/pkg/mutate/alertrules_test.go b/runner/pkg/mutate/alertrules_test.go index 8dee8f4..d1b8254 100644 --- a/runner/pkg/mutate/alertrules_test.go +++ b/runner/pkg/mutate/alertrules_test.go @@ -159,3 +159,264 @@ func TestHandlers_PromRuleActionsRegisteredWhenDynamicSet(t *testing.T) { } } } + +// Legacy alert-rule path: the api-server today sends {alert, expr, duration, +// annotations, labels} — not a manifest. These tests pin the shape-router and +// the canonical-CR semantics so the path doesn't silently regress to "DB row +// saved but no CR" the way it did before this change. + +func newLegacyCR(namespace string, rules []map[string]any) *unstructured.Unstructured { + asAny := make([]any, len(rules)) + for i, r := range rules { + asAny[i] = r + } + return &unstructured.Unstructured{Object: map[string]any{ + "apiVersion": "monitoring.coreos.com/v1", + "kind": "PrometheusRule", + "metadata": map[string]any{ + "name": LegacyAlertRuleCRDName, + "namespace": namespace, + "labels": map[string]any{ + LegacyAlertRuleLabelKey: LegacyAlertRuleLabelValue, + "role": "alert-rules", + }, + }, + "spec": map[string]any{ + "groups": []any{ + map[string]any{"name": LegacyAlertRuleGroupName, "rules": asAny}, + }, + }, + }} +} + +func legacyRulesFromCR(t *testing.T, dyn *dynamicfake.FakeDynamicClient, namespace string) []any { + t.Helper() + got, err := dyn.Resource(prometheusRuleGVR).Namespace(namespace).Get( + context.Background(), LegacyAlertRuleCRDName, metav1.GetOptions{}) + if err != nil { + t.Fatalf("read CR: %v", err) + } + groups, _, _ := unstructured.NestedSlice(got.Object, "spec", "groups") + if len(groups) == 0 { + return nil + } + g, _ := groups[0].(map[string]any) + rules, _ := g["rules"].([]any) + return rules +} + +func TestCreateOrReplaceAlertRule_CreatesCRWhenAbsent(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + + if _, err := m.CreateOrReplaceAlertRule(context.Background(), LegacyAlertRuleParams{ + Alert: "TestAlertA", + Expr: "up == 0", + Duration: "1m", + Annotations: map[string]any{"summary": "s"}, + Labels: map[string]any{"severity": "warning"}, + }); err != nil { + t.Fatal(err) + } + rules := legacyRulesFromCR(t, dyn, "nudgebee-agent") + if len(rules) != 1 { + t.Fatalf("want 1 rule, got %d", len(rules)) + } + r, _ := rules[0].(map[string]any) + if r["alert"] != "TestAlertA" || r["for"] != "1m" { + t.Errorf("bad rule shape: %v", r) + } +} + +func TestCreateOrReplaceAlertRule_AppendsWhenAlertNew(t *testing.T) { + pre := newLegacyCR("nudgebee-agent", []map[string]any{ + {"alert": "Existing", "expr": "up", "for": "5m"}, + }) + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme(), pre) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + + if _, err := m.CreateOrReplaceAlertRule(context.Background(), LegacyAlertRuleParams{ + Alert: "Fresh", Expr: "up == 0", Duration: "2m", + }); err != nil { + t.Fatal(err) + } + rules := legacyRulesFromCR(t, dyn, "nudgebee-agent") + if len(rules) != 2 { + t.Fatalf("want 2 rules after append, got %d", len(rules)) + } +} + +func TestCreateOrReplaceAlertRule_ReplacesExistingAlertInPlace(t *testing.T) { + pre := newLegacyCR("nudgebee-agent", []map[string]any{ + {"alert": "TargetAlert", "expr": "old_expr", "for": "5m"}, + {"alert": "Other", "expr": "up", "for": "1m"}, + }) + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme(), pre) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + + if _, err := m.CreateOrReplaceAlertRule(context.Background(), LegacyAlertRuleParams{ + Alert: "TargetAlert", Expr: "new_expr", Duration: "30s", + }); err != nil { + t.Fatal(err) + } + rules := legacyRulesFromCR(t, dyn, "nudgebee-agent") + if len(rules) != 2 { + t.Fatalf("expected 2 rules (in-place replace), got %d", len(rules)) + } + r0, _ := rules[0].(map[string]any) + if r0["expr"] != "new_expr" || r0["for"] != "30s" { + t.Errorf("expected first rule replaced, got %v", r0) + } + r1, _ := rules[1].(map[string]any) + if r1["alert"] != "Other" { + t.Errorf("second rule should be untouched, got %v", r1) + } +} + +func TestCreateOrReplaceAlertRule_RequiresNamespace(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + // Namespace deliberately not set. + if _, err := m.CreateOrReplaceAlertRule(context.Background(), LegacyAlertRuleParams{ + Alert: "X", Expr: "up", + }); err == nil || !strings.Contains(err.Error(), "namespace") { + t.Errorf("expected namespace error, got %v", err) + } +} + +func TestCreateOrReplaceAlertRule_RequiresAlertAndExpr(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + if _, err := m.CreateOrReplaceAlertRule(context.Background(), LegacyAlertRuleParams{}); err == nil { + t.Error("expected error when alert+expr empty") + } +} + +func TestDeleteAlertRule_RemovesByAlertName(t *testing.T) { + pre := newLegacyCR("nudgebee-agent", []map[string]any{ + {"alert": "Keep", "expr": "up"}, + {"alert": "Drop", "expr": "down"}, + }) + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme(), pre) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + + if err := m.DeleteAlertRule(context.Background(), "Drop"); err != nil { + t.Fatal(err) + } + rules := legacyRulesFromCR(t, dyn, "nudgebee-agent") + if len(rules) != 1 { + t.Fatalf("want 1 rule after delete, got %d", len(rules)) + } + r, _ := rules[0].(map[string]any) + if r["alert"] != "Keep" { + t.Errorf("wrong rule retained: %v", r) + } +} + +func TestDeleteAlertRule_NoCRIsNoop(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + if err := m.DeleteAlertRule(context.Background(), "anything"); err != nil { + t.Errorf("delete on missing CR should be no-op, got %v", err) + } +} + +func TestDeleteAlertRule_UnknownAlertIsNoop(t *testing.T) { + pre := newLegacyCR("nudgebee-agent", []map[string]any{ + {"alert": "Keep", "expr": "up"}, + }) + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme(), pre) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + if err := m.DeleteAlertRule(context.Background(), "DoesNotExist"); err != nil { + t.Errorf("delete of unknown alert should be no-op, got %v", err) + } + if got := legacyRulesFromCR(t, dyn, "nudgebee-agent"); len(got) != 1 { + t.Errorf("expected CR untouched, got %d rules", len(got)) + } +} + +// Shape-router: the handler must pick the legacy path for {alert, expr, ...} +// and the manifest path for {apiVersion, kind, metadata, spec}. + +func TestHandleCreateOrReplacePromRule_RoutesLegacyShape(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + + _, err := handleCreateOrReplacePromRule(context.Background(), m, map[string]any{ + "alert": "RouterTest", + "expr": "up", + "duration": "1m", + "annotations": map[string]any{"summary": "s"}, + "labels": map[string]any{"severity": "warning"}, + }) + if err != nil { + t.Fatal(err) + } + rules := legacyRulesFromCR(t, dyn, "nudgebee-agent") + if len(rules) != 1 { + t.Fatalf("legacy path should have created 1 rule, got %d", len(rules)) + } +} + +func TestHandleCreateOrReplacePromRule_RoutesManifestShape(t *testing.T) { + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme()) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") // set but should be ignored on the manifest path + + if _, err := handleCreateOrReplacePromRule(context.Background(), m, + newPromRuleManifest("manifest-route", "monitoring")); err != nil { + t.Fatal(err) + } + if _, err := dyn.Resource(prometheusRuleGVR).Namespace("monitoring").Get( + context.Background(), "manifest-route", metav1.GetOptions{}); err != nil { + t.Errorf("manifest-route CR should exist: %v", err) + } +} + +func TestHandleDeletePromRule_RoutesByAlertVsName(t *testing.T) { + pre := newLegacyCR("nudgebee-agent", []map[string]any{ + {"alert": "ToDrop", "expr": "up"}, + }) + // Also seed a manifest-style CR for the by-name path. + manifest := &unstructured.Unstructured{} + manifest.SetGroupVersionKind(schema.GroupVersionKind{Group: "monitoring.coreos.com", Version: "v1", Kind: "PrometheusRule"}) + manifest.SetName("standalone") + manifest.SetNamespace("monitoring") + dyn := dynamicfake.NewSimpleDynamicClient(promRuleScheme(), pre, manifest) + m := New(fake.NewClientset(), "", nil) + m.SetDynamic(dyn) + m.SetNamespace("nudgebee-agent") + + // Alert-shape removes a rule from the canonical CR. + if err := handleDeletePromRule(context.Background(), m, map[string]any{"alert": "ToDrop"}); err != nil { + t.Fatalf("alert-shape: %v", err) + } + if got := legacyRulesFromCR(t, dyn, "nudgebee-agent"); len(got) != 0 { + t.Errorf("expected ToDrop removed, %d rules remain", len(got)) + } + + // Name+namespace removes the standalone CR. + if err := handleDeletePromRule(context.Background(), m, map[string]any{ + "name": "standalone", "namespace": "monitoring", + }); err != nil { + t.Fatalf("manifest-shape: %v", err) + } +} diff --git a/runner/pkg/mutate/handlers.go b/runner/pkg/mutate/handlers.go index 7b96797..5f52197 100644 --- a/runner/pkg/mutate/handlers.go +++ b/runner/pkg/mutate/handlers.go @@ -108,7 +108,23 @@ func getBool(m map[string]any, k string, fallback bool) bool { return fallback } +// handleCreateOrReplacePromRule accepts two payload shapes: +// +// 1. Full PrometheusRule manifest at the top level (or under `rule`) — +// used by callers that own the CR shape directly. +// 2. Legacy api-server / Robusta shape: a flat {alert, expr, duration, +// annotations, labels} map. Detected by the presence of a non-empty +// `alert` string AND the absence of an `apiVersion`. We translate it +// into a single rule appended to the canonical CR — see +// CreateOrReplaceAlertRule. +// +// Keeping both behind one action name avoids a coordinated rollout with the +// api-server: today's callers send the legacy shape; future callers can opt +// into the manifest shape without a new wire action. func handleCreateOrReplacePromRule(ctx context.Context, m *Mutator, p map[string]any) (any, error) { + if isLegacyAlertRulePayload(p) { + return m.CreateOrReplaceAlertRule(ctx, parseLegacyAlertRuleParams(p)) + } rule, ok := p["rule"] if !ok { // Allow the caller to pass the manifest at the top level too. @@ -117,10 +133,49 @@ func handleCreateOrReplacePromRule(ctx context.Context, m *Mutator, p map[string return m.CreateOrReplacePrometheusRule(ctx, rule) } +// handleDeletePromRule accepts two payload shapes that mirror +// handleCreateOrReplacePromRule: full manifest delete (by namespace+name) +// or the legacy `alert`-only shape (drops a single rule from the canonical +// CR). func handleDeletePromRule(ctx context.Context, m *Mutator, p map[string]any) error { + if alert := str(p, "alert"); alert != "" { + return m.DeleteAlertRule(ctx, alert) + } return m.DeletePrometheusRule(ctx, str(p, "namespace"), str(p, "name")) } +// isLegacyAlertRulePayload detects the flat Robusta shape: `alert` set and +// no `apiVersion`. We also accept the shape when `rule` is absent — a +// caller wrapping the full manifest under `rule` is treating it as a +// manifest no matter the rest of the keys. +func isLegacyAlertRulePayload(p map[string]any) bool { + if p == nil { + return false + } + if _, hasRule := p["rule"]; hasRule { + return false + } + if _, hasAV := p["apiVersion"]; hasAV { + return false + } + return str(p, "alert") != "" +} + +func parseLegacyAlertRuleParams(p map[string]any) LegacyAlertRuleParams { + out := LegacyAlertRuleParams{ + Alert: str(p, "alert"), + Expr: str(p, "expr"), + Duration: str(p, "duration"), + } + if a, ok := p["annotations"].(map[string]any); ok { + out.Annotations = a + } + if l, ok := p["labels"].(map[string]any); ok { + out.Labels = l + } + return out +} + // handleReplaceWorkload accepts the body as either: // - a per-kind field (`deployment`, `daemonset`, `statefulset`, // `replicaset`, `rollout`, `nodepool`, `ec2nodeclass`) — matches diff --git a/runner/pkg/mutate/mutate.go b/runner/pkg/mutate/mutate.go index 63bfc72..2405ff9 100644 --- a/runner/pkg/mutate/mutate.go +++ b/runner/pkg/mutate/mutate.go @@ -36,6 +36,11 @@ type Mutator struct { LokiRulesURL string LokiRulesHeaders map[string]string + // Namespace is the agent's install namespace. Required by the legacy + // alert-rule path (CreateOrReplaceAlertRule / DeleteAlertRule), which + // locates the canonical PrometheusRule CR there. + Namespace string + // dynamic is the dynamic client used for CRD operations like // PrometheusRule. Set via SetDynamic. dynamic dynamic.Interface @@ -55,6 +60,10 @@ func (m *Mutator) SetLokiRules(url string, headers map[string]string) { m.LokiRulesHeaders = headers } +// SetNamespace records the agent's install namespace. Required by the legacy +// alert-rule path; everything else is independent of it. +func (m *Mutator) SetNamespace(ns string) { m.Namespace = ns } + // DeletePod removes one pod. namespace + name required. func (m *Mutator) DeletePod(ctx context.Context, namespace, name string, gracePeriodSec *int64) error { if m.Client == nil { From 92717c534c1d680ea904e550f40ca97fc7fa6f6c Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 09:55:56 +0530 Subject: [PATCH 27/40] fix(chart): make profiler image configurable + auto-bump (#445) * fix(chart): make profiler image configurable + auto-bump The agent's PROFILER_IMAGE env defaulted to a binary-baked URL (registry.dev.nudgebee.pollux.in/nudgebee-profiler-{}:latest) whose :latest manifest had a missing layer, so debugger pods hit ImagePullBackOff and the pod_profiler action failed with "wait debugger ready: context deadline exceeded". - values.yaml: new runner.profilerImage defaulting to ghcr.io/nudgebee/application-profiler-{}:dc5fd6d - _helpers.tpl: render PROFILER_IMAGE only when set; empty value falls back to the agent binary's compiled default - update-image-tags.yml: auto-bump runner.profilerImage to newest short-SHA from ghcr.io/nudgebee/application-profiler-bpf (all variants share the same SHA per release.yml) * chore: update image tags for main release * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] Co-authored-by: Shiv <3078106+blue4209211@users.noreply.github.com> From ed789d382f8a2ef5d6b048df05c162890a0b04ea Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 10:20:28 +0530 Subject: [PATCH 28/40] ci(release): sign chart packages with cosign (keyless) (#447) * ci(release): sign chart packages with cosign (keyless) Addresses OpenSSF Scorecard's Signed-Releases check. GitHub releases previously shipped only the bare chart .tgz with no signature. Both release workflows now install cosign and, after chart-releaser stages packages under .cr-release-packages/, keyless-sign each tarball (Fulcio cert + Rekor transparency log) and upload .tgz.sig and .tgz.pem to the matching release. Adds id-token: write so the job can mint the OIDC token for keyless signing. README documents verification via `cosign verify-blob` with the workflow identity + GitHub Actions OIDC issuer. Takes effect on the next release; existing releases stay unsigned. * chore: update image tags for main release * docs: anchor and escape dots in cosign identity regexp Addresses review feedback: unescaped dots in the --certificate-identity-regexp matched any char. Escape the literal dots in github.com/.github/.yml and anchor with ^ so only the exact workflow identity verifies. * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- .github/workflows/release-rc.yml | 28 ++++++++++++++++++++++++++++ .github/workflows/release.yml | 30 ++++++++++++++++++++++++++++++ README.md | 22 ++++++++++++++++++++++ charts/nudgebee-agent/values.yaml | 2 +- 4 files changed, 81 insertions(+), 1 deletion(-) diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index 88973a8..b09038d 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -10,6 +10,7 @@ jobs: release-rc: permissions: contents: write + id-token: write # keyless cosign signing of chart packages runs-on: ubuntu-latest steps: - name: Checkout @@ -87,6 +88,33 @@ jobs: CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}" CR_SKIP_EXISTING: "true" + - name: Install cosign + uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2 + + - name: Sign chart packages (cosign keyless) + env: + GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} + COSIGN_YES: "true" + run: | + # chart-releaser stages each packaged chart under .cr-release-packages/ + # and names the GitHub release after the tarball. Sign each blob + # keyless (Fulcio/Rekor) and attach the signature + cert. + shopt -s nullglob + pkgs=(.cr-release-packages/*.tgz) + if [ ${#pkgs[@]} -eq 0 ]; then + echo "No chart packages produced — nothing to sign." + exit 0 + fi + for pkg in "${pkgs[@]}"; do + tag="$(basename "${pkg%.tgz}")" + echo "Signing $pkg -> release $tag" + cosign sign-blob --yes \ + --output-signature "${pkg}.sig" \ + --output-certificate "${pkg}.pem" \ + "$pkg" + gh release upload "$tag" "${pkg}.sig" "${pkg}.pem" --clobber + done + - name: Mark release as pre-release run: | # Wait a moment for release to be fully created diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index ac7255c..297d58c 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -10,6 +10,7 @@ jobs: release: permissions: contents: write + id-token: write # keyless cosign signing of chart packages runs-on: ubuntu-latest steps: - name: Checkout @@ -35,3 +36,32 @@ jobs: uses: helm/chart-releaser-action@cae68fefc6b5f367a0275617c9f83181ba54714f # v1.7.0 env: CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}" + + - name: Install cosign + uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2 + + - name: Sign chart packages (cosign keyless) + env: + GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} + COSIGN_YES: "true" + run: | + # chart-releaser stages each packaged chart under .cr-release-packages/ + # and names the GitHub release after the tarball (e.g. + # nudgebee-agent-0.1.1.tgz -> release nudgebee-agent-0.1.1). Sign each + # blob keyless (Fulcio/Rekor) and attach the signature + cert so the + # release carries verifiable provenance. + shopt -s nullglob + pkgs=(.cr-release-packages/*.tgz) + if [ ${#pkgs[@]} -eq 0 ]; then + echo "No chart packages produced — nothing to sign." + exit 0 + fi + for pkg in "${pkgs[@]}"; do + tag="$(basename "${pkg%.tgz}")" + echo "Signing $pkg -> release $tag" + cosign sign-blob --yes \ + --output-signature "${pkg}.sig" \ + --output-certificate "${pkg}.pem" \ + "$pkg" + gh release upload "$tag" "${pkg}.sig" "${pkg}.pem" --clobber + done diff --git a/README.md b/README.md index d1edd7e..da817f0 100644 --- a/README.md +++ b/README.md @@ -47,6 +47,28 @@ curl -sSL https://raw.githubusercontent.com/nudgebee/k8s-agent/main/installation | bash -s -- -a "" ``` +### Verifying chart signatures + +Chart packages are signed with [cosign](https://github.com/sigstore/cosign) +keyless signing. Each GitHub release attaches `.tgz.sig` and +`.tgz.pem` alongside the chart tarball. To verify a downloaded +package: + +```bash +VERSION=0.1.1 +BASE="https://github.com/nudgebee/k8s-agent/releases/download/nudgebee-agent-${VERSION}" +curl -sSLO "${BASE}/nudgebee-agent-${VERSION}.tgz" +curl -sSLO "${BASE}/nudgebee-agent-${VERSION}.tgz.sig" +curl -sSLO "${BASE}/nudgebee-agent-${VERSION}.tgz.pem" + +cosign verify-blob \ + --certificate "nudgebee-agent-${VERSION}.tgz.pem" \ + --signature "nudgebee-agent-${VERSION}.tgz.sig" \ + --certificate-identity-regexp "^https://github\.com/nudgebee/k8s-agent/\.github/workflows/release(-rc)?\.yml@.*" \ + --certificate-oidc-issuer "https://token.actions.githubusercontent.com" \ + "nudgebee-agent-${VERSION}.tgz" +``` + ## Configuration All configurable values live in [`charts/nudgebee-agent/values.yaml`](charts/nudgebee-agent/values.yaml). Common overrides: diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index a9b359a..e0e090e 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-06-01T11-35-01_9cc96cf11ee44201e633cf7e53a9b5e15f3d40c8 + tag: 2026-06-02T04-24-22_10ba4386e158ca6108aff1b8d513507d8c47cc09 # Image template the pod_profiler action launches debugger pods from. # The agent substitutes `{}` for the variant (bpf, jvm, python, perf, ruby). # Surfaces as PROFILER_IMAGE; leave empty to fall back to the binary default. From 779fb20a84035c5720de87b06cd9424ebeede37d Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 10:54:51 +0530 Subject: [PATCH 29/40] fix(release): use cosign v3 Sigstore bundle for chart signing (#449) The cosign signing step failed on real releases: cosign-installer now installs cosign v3, which deprecated --output-signature/--output-certificate in favour of the new Sigstore bundle format. Without --bundle, cosign tried to write a bundle to an empty path ("create bundle file: open : no such file or directory"). - Pin cosign-release: v3.0.6 so behaviour is deterministic. - Sign into .tgz.sigstore.json via --new-bundle-format --bundle (signature + cert + Rekor entry in one file). OpenSSF Scorecard's Signed-Releases probe recognises .sigstore.json as a signature. - Upload the single bundle instead of the old .sig/.pem pair. - README: verify via `cosign verify-blob --bundle ...sigstore.json`. Flags validated against cosign v3.0.6. --- .github/workflows/release-rc.yml | 12 ++++++++---- .github/workflows/release.yml | 15 ++++++++++----- README.md | 12 +++++------- 3 files changed, 23 insertions(+), 16 deletions(-) diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index b09038d..9e27182 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -90,6 +90,8 @@ jobs: - name: Install cosign uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2 + with: + cosign-release: v3.0.6 - name: Sign chart packages (cosign keyless) env: @@ -98,7 +100,9 @@ jobs: run: | # chart-releaser stages each packaged chart under .cr-release-packages/ # and names the GitHub release after the tarball. Sign each blob - # keyless (Fulcio/Rekor) and attach the signature + cert. + # keyless (Fulcio/Rekor) into a Sigstore bundle (.sigstore.json: + # signature + cert + transparency-log entry). cosign v3 deprecated + # --output-signature/-certificate in favour of this bundle format. shopt -s nullglob pkgs=(.cr-release-packages/*.tgz) if [ ${#pkgs[@]} -eq 0 ]; then @@ -109,10 +113,10 @@ jobs: tag="$(basename "${pkg%.tgz}")" echo "Signing $pkg -> release $tag" cosign sign-blob --yes \ - --output-signature "${pkg}.sig" \ - --output-certificate "${pkg}.pem" \ + --new-bundle-format \ + --bundle "${pkg}.sigstore.json" \ "$pkg" - gh release upload "$tag" "${pkg}.sig" "${pkg}.pem" --clobber + gh release upload "$tag" "${pkg}.sigstore.json" --clobber done - name: Mark release as pre-release diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 297d58c..3cc00bc 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -39,6 +39,8 @@ jobs: - name: Install cosign uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2 + with: + cosign-release: v3.0.6 - name: Sign chart packages (cosign keyless) env: @@ -48,8 +50,11 @@ jobs: # chart-releaser stages each packaged chart under .cr-release-packages/ # and names the GitHub release after the tarball (e.g. # nudgebee-agent-0.1.1.tgz -> release nudgebee-agent-0.1.1). Sign each - # blob keyless (Fulcio/Rekor) and attach the signature + cert so the - # release carries verifiable provenance. + # blob keyless (Fulcio/Rekor) into a Sigstore bundle (sig + cert + + # transparency-log entry) so the release carries verifiable + # provenance. cosign v3 deprecated --output-signature/-certificate in + # favour of the .sigstore.json bundle (which OpenSSF Scorecard also + # recognises as a signature). shopt -s nullglob pkgs=(.cr-release-packages/*.tgz) if [ ${#pkgs[@]} -eq 0 ]; then @@ -60,8 +65,8 @@ jobs: tag="$(basename "${pkg%.tgz}")" echo "Signing $pkg -> release $tag" cosign sign-blob --yes \ - --output-signature "${pkg}.sig" \ - --output-certificate "${pkg}.pem" \ + --new-bundle-format \ + --bundle "${pkg}.sigstore.json" \ "$pkg" - gh release upload "$tag" "${pkg}.sig" "${pkg}.pem" --clobber + gh release upload "$tag" "${pkg}.sigstore.json" --clobber done diff --git a/README.md b/README.md index da817f0..ae8f96c 100644 --- a/README.md +++ b/README.md @@ -50,20 +50,18 @@ curl -sSL https://raw.githubusercontent.com/nudgebee/k8s-agent/main/installation ### Verifying chart signatures Chart packages are signed with [cosign](https://github.com/sigstore/cosign) -keyless signing. Each GitHub release attaches `.tgz.sig` and -`.tgz.pem` alongside the chart tarball. To verify a downloaded -package: +keyless signing. Each GitHub release attaches a `.tgz.sigstore.json` +Sigstore bundle (signature + certificate + transparency-log entry) alongside +the chart tarball. To verify a downloaded package (requires cosign v3+): ```bash VERSION=0.1.1 BASE="https://github.com/nudgebee/k8s-agent/releases/download/nudgebee-agent-${VERSION}" curl -sSLO "${BASE}/nudgebee-agent-${VERSION}.tgz" -curl -sSLO "${BASE}/nudgebee-agent-${VERSION}.tgz.sig" -curl -sSLO "${BASE}/nudgebee-agent-${VERSION}.tgz.pem" +curl -sSLO "${BASE}/nudgebee-agent-${VERSION}.tgz.sigstore.json" cosign verify-blob \ - --certificate "nudgebee-agent-${VERSION}.tgz.pem" \ - --signature "nudgebee-agent-${VERSION}.tgz.sig" \ + --bundle "nudgebee-agent-${VERSION}.tgz.sigstore.json" \ --certificate-identity-regexp "^https://github\.com/nudgebee/k8s-agent/\.github/workflows/release(-rc)?\.yml@.*" \ --certificate-oidc-issuer "https://token.actions.githubusercontent.com" \ "nudgebee-agent-${VERSION}.tgz" From 94ba3daa00029c6658f31673a583d7efba862888 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 13:46:55 +0530 Subject: [PATCH 30/40] fix(release-rc): mark pre-release before signing (#450) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The rc-4 run published a full (non-pre) release: chart-releaser creates the release as a normal release, and the "mark as pre-release" step ran *after* signing — so when signing failed, pre-release marking + notes were skipped, leaving a full, unsigned release. Reorder so pre-release marking and notes happen immediately after chart-releaser, with signing as the final step. A signing failure now leaves a correctly-marked, fully-noted pre-release behind instead of a half-configured full release. --- .github/workflows/release-rc.yml | 70 +++++++++++++++++--------------- 1 file changed, 37 insertions(+), 33 deletions(-) diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index 9e27182..00a7a34 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -88,38 +88,7 @@ jobs: CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}" CR_SKIP_EXISTING: "true" - - name: Install cosign - uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2 - with: - cosign-release: v3.0.6 - - - name: Sign chart packages (cosign keyless) - env: - GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} - COSIGN_YES: "true" - run: | - # chart-releaser stages each packaged chart under .cr-release-packages/ - # and names the GitHub release after the tarball. Sign each blob - # keyless (Fulcio/Rekor) into a Sigstore bundle (.sigstore.json: - # signature + cert + transparency-log entry). cosign v3 deprecated - # --output-signature/-certificate in favour of this bundle format. - shopt -s nullglob - pkgs=(.cr-release-packages/*.tgz) - if [ ${#pkgs[@]} -eq 0 ]; then - echo "No chart packages produced — nothing to sign." - exit 0 - fi - for pkg in "${pkgs[@]}"; do - tag="$(basename "${pkg%.tgz}")" - echo "Signing $pkg -> release $tag" - cosign sign-blob --yes \ - --new-bundle-format \ - --bundle "${pkg}.sigstore.json" \ - "$pkg" - gh release upload "$tag" "${pkg}.sigstore.json" --clobber - done - - - name: Mark release as pre-release + - name: Mark release as pre-release run: | # Wait a moment for release to be fully created sleep 5 @@ -159,7 +128,42 @@ jobs: gh release edit "nudgebee-agent-${{ steps.rc_version.outputs.rc_version }}" \ --title "Release Candidate ${{ steps.rc_version.outputs.rc_version }}" \ --notes-file release_notes.md - + echo "✅ Updated release title and notes" env: GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} + + # Signing runs last: it is the most failure-prone step (Fulcio/Rekor), + # and by here the release is already published, marked pre-release, and + # has its notes — so a signing hiccup never leaves a half-configured + # full release behind. + - name: Install cosign + uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2 + with: + cosign-release: v3.0.6 + + - name: Sign chart packages (cosign keyless) + env: + GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} + COSIGN_YES: "true" + run: | + # chart-releaser stages each packaged chart under .cr-release-packages/ + # and names the GitHub release after the tarball. Sign each blob + # keyless (Fulcio/Rekor) into a Sigstore bundle (.sigstore.json: + # signature + cert + transparency-log entry). cosign v3 deprecated + # --output-signature/-certificate in favour of this bundle format. + shopt -s nullglob + pkgs=(.cr-release-packages/*.tgz) + if [ ${#pkgs[@]} -eq 0 ]; then + echo "No chart packages produced — nothing to sign." + exit 0 + fi + for pkg in "${pkgs[@]}"; do + tag="$(basename "${pkg%.tgz}")" + echo "Signing $pkg -> release $tag" + cosign sign-blob --yes \ + --new-bundle-format \ + --bundle "${pkg}.sigstore.json" \ + "$pkg" + gh release upload "$tag" "${pkg}.sigstore.json" --clobber + done From 42d1e24062422e1fca0bd5e40c4a13deb7636e34 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 14:24:29 +0530 Subject: [PATCH 31/40] fix(runner): remove warning_event matcher (#451) The matcher fired on every K8s Event of type=Warning and produced ~6k findings/24h on dev clusters, dominated by probe-flap noise (kubelet Unhealthy probes, calico-node, fluent-bit, loki-canary). The high-signal warning conditions are already covered by dedicated matchers: pod_crash_loop, pod_oom_killed, image_pull_backoff, node_not_ready, job_failure. Also fixes a subject-shape bug exposed by the matcher: the engine override only read involvedObject (core/v1 deprecated field) and ignored regarding (events.k8s.io/v1). When the payload used the modern API, the override fell through and SubjectFromObj returned the Event's own metadata name (e.g. notifications-58f67d7655-q87d2.18b5319ebc909bed) instead of the involved pod. With the matcher gone, the override and its fetchSubjectEvents skip are deleted too. This is a re-apply of nudgebee-agent PR #52, which was merged into the pre-OSS history but dropped when the upstream repo was re-initialized on 2026-05-21. The runner code lives under k8s-agent/runner since #433 (2026-05-26) and never picked it up. --- runner/pkg/alerts/finding.go | 4 +-- runner/pkg/triggers/engine.go | 26 ++-------------- runner/pkg/triggers/events_block_test.go | 25 --------------- runner/pkg/triggers/predicates.go | 39 ------------------------ runner/pkg/triggers/predicates_test.go | 24 --------------- runner/pkg/triggers/types.go | 7 ++--- 6 files changed, 6 insertions(+), 119 deletions(-) diff --git a/runner/pkg/alerts/finding.go b/runner/pkg/alerts/finding.go index caa1a35..0bd137a 100644 --- a/runner/pkg/alerts/finding.go +++ b/runner/pkg/alerts/finding.go @@ -110,7 +110,7 @@ func (b *Builder) FromMatchedTrigger(matchSpec MatchedTrigger, rawData []byte) ( // Owner-aware subject — the UI groups findings by service_key, which // is namespace/owner-or-pod. Use the resolved owner when the matcher // walked one (most Pod-based matchers do); fall back to the raw - // subject otherwise (warning_event, node_not_ready). + // subject otherwise (node_not_ready). subjectOwner, subjectOwnerKind := matchSpec.Owner.Name, matchSpec.Owner.Kind if subjectOwner != "" { serviceKey = matchSpec.SubjectNamespace + "/" + subjectOwner @@ -194,8 +194,6 @@ func (m MatchedTrigger) Title() string { return fmt.Sprintf("Job %s/%s failed", m.SubjectNamespace, m.SubjectName) case "node_not_ready": return fmt.Sprintf("Node %s is NotReady", m.SubjectName) - case "Kubernetes Warning Event": - return fmt.Sprintf("Warning Event on %s %s/%s", m.SubjectKind, m.SubjectNamespace, m.SubjectName) default: return fmt.Sprintf("%s on %s/%s", m.AggregationKey, m.SubjectNamespace, m.SubjectName) } diff --git a/runner/pkg/triggers/engine.go b/runner/pkg/triggers/engine.go index fcc29cb..c6e9bbc 100644 --- a/runner/pkg/triggers/engine.go +++ b/runner/pkg/triggers/engine.go @@ -1,7 +1,6 @@ package triggers import ( - "strings" "time" ) @@ -48,21 +47,16 @@ func (e *Engine) WithEventsLister(l K8sEventsLister) *Engine { } // fetchSubjectEvents builds a "Recent events" table for the -// matched object. Skipped when the lister is unwired (unit tests), -// when the matched kind is Event (the warning_event matcher's subject -// IS the event already, no point fetching events about an event), or +// matched object. Skipped when the lister is unwired (unit tests) or // when the namespace/name pair can't be resolved. // // Centralizing this in the engine — rather than per-matcher EnrichBlocks // — lets every matcher (current + future) inherit the evidence without // repeating the same recentEventsTable call. -func (e *Engine) fetchSubjectEvents(matcherName, kind, namespace, name string) []EvidenceBlock { +func (e *Engine) fetchSubjectEvents(kind, namespace, name string) []EvidenceBlock { if e.eventsLister == nil || namespace == "" || name == "" || kind == "" { return nil } - if matcherName == "warning_event" { - return nil - } return recentEventsTable(EnrichContext{EventsLister: e.eventsLister}, namespace, kind, name, "Recent "+kind+" events", recentEventsLimit) } @@ -134,20 +128,6 @@ func (e *Engine) Match(ev IncomingK8sEvent) []Match { } name, namespace, lowerKind, node := SubjectFromObj(ev.Kind, ev.Obj) - // Warning Event: subject is the involvedObject, not the Event itself. - if spec.Name == "warning_event" { - if io, _ := ev.Obj["involvedObject"].(map[string]any); io != nil { - if v, _ := io["name"].(string); v != "" { - name = v - } - if v, _ := io["namespace"].(string); v != "" { - namespace = v - } - if v, _ := io["kind"].(string); v != "" { - lowerKind = strings.ToLower(v) - } - } - } var extra []EvidenceBlock if spec.EnrichBlocks != nil { extra = spec.EnrichBlocks(ev.Obj, ev.OldObj, EnrichContext{ @@ -163,7 +143,7 @@ func (e *Engine) Match(ev IncomingK8sEvent) []Match { // the primary finding (sick node, sibling-pod failures) so users // don't have to leave the Finding card to triage. All three are // skipped when the lister isn't wired (unit tests / no K8s client). - extra = append(extra, e.fetchSubjectEvents(spec.Name, ev.Kind, namespace, name)...) + extra = append(extra, e.fetchSubjectEvents(ev.Kind, namespace, name)...) extra = append(extra, e.fetchNodeEvents(node)...) extra = append(extra, e.fetchNamespaceEvents(namespace)...) matches = append(matches, Match{ diff --git a/runner/pkg/triggers/events_block_test.go b/runner/pkg/triggers/events_block_test.go index 0085723..e9a753a 100644 --- a/runner/pkg/triggers/events_block_test.go +++ b/runner/pkg/triggers/events_block_test.go @@ -78,31 +78,6 @@ func TestEngine_AppendsRecentEventsTablePerMatch(t *testing.T) { } } -// TestEngine_SubjectEventsSkippedForWarningEvent: the warning_event -// matcher's subject IS already the K8s Event, so fetching events about -// an event would be circular and noisy. Engine must skip the subject -// fetch in that case — but node + namespace tables still apply since -// they're keyed off the involved Pod's namespace/node, not the Event. -func TestEngine_SubjectEventsSkippedForWarningEvent(t *testing.T) { - ev := asObj(t, `{ - "metadata":{"name":"e1","namespace":"prod"}, - "type":"Warning", - "reason":"FailedScheduling", - "involvedObject":{"kind":"Pod","name":"web-0","namespace":"prod"} - }`) - stub := &stubLister{events: []K8sEvent{{Reason: "X"}}} - eng := NewEngine(Builtins(), time.Now().Add(-time.Hour)).WithEventsLister(stub) - matches := eng.Match(IncomingK8sEvent{Operation: "create", Kind: "Event", Obj: ev}) - if !contains(matchNames(matches), "warning_event") { - t.Fatal("expected warning_event to fire") - } - for _, c := range stub.calls { - if c.kind == "Event" { - t.Errorf("ListEvents must NOT be called with kind=Event for warning_event matches; got %+v", c) - } - } -} - // TestEngine_AppendsNodeEventsTable: when the matched Pod has a node, // the engine attaches a "Recent Node events" table so users see // node-level issues (DiskPressure / NetworkUnavailable / kubelet diff --git a/runner/pkg/triggers/predicates.go b/runner/pkg/triggers/predicates.go index feafa3e..73d51c3 100644 --- a/runner/pkg/triggers/predicates.go +++ b/runner/pkg/triggers/predicates.go @@ -23,7 +23,6 @@ func Builtins() []MatcherSpec { imagePullBackoffMatcher(), jobFailureMatcher(), nodeNotReadyMatcher(), - warningEventMatcher(), } // One matcher per babysitter-watched kind. We register them as // separate specs (rather than `Kind: "Any"` with an in-predicate @@ -425,44 +424,6 @@ func nodeNotReadyMatcher() MatcherSpec { } } -// ------- Warning Event ------- - -// warningEventMatcher fires for K8s Event resources of type=Warning. -// Emits aggregation_key "Kubernetes Warning Event" (literal string with -// capitalization). -// -// Requires kubewatch's chart to subscribe to events -// (k8s-agent/charts/nudgebee-agent/values.yaml has `event: true` at -// the resource block). Verified live before adding this matcher. -func warningEventMatcher() MatcherSpec { - return MatcherSpec{ - Name: "warning_event", - Kind: "Event", - Operations: []string{"create"}, - AggregationKey: "Kubernetes Warning Event", - Priority: "MEDIUM", - FindingType: "issue", - RateLimit: 5 * time.Minute, - Predicate: func(obj, _ map[string]any) bool { - t, _ := obj["type"].(string) - return t == "Warning" - }, - FingerprintFn: func(obj map[string]any) string { - // involvedObject (core/v1) or regarding (events.k8s.io/v1) - // is the resource the event describes. - io, _ := obj["involvedObject"].(map[string]any) - if io == nil { - io, _ = obj["regarding"].(map[string]any) - } - ioKind, _ := io["kind"].(string) - ioNS, _ := io["namespace"].(string) - ioName, _ := io["name"].(string) - reason, _ := obj["reason"].(string) - return fp("Kubernetes Warning Event", ioKind, ioNS, ioName, reason) - }, - } -} - // ------- Babysitter (config-change with diff) ------- // babysitterChangeMatcher implements resource_babysitter. Fires diff --git a/runner/pkg/triggers/predicates_test.go b/runner/pkg/triggers/predicates_test.go index 95c4608..246f1c5 100644 --- a/runner/pkg/triggers/predicates_test.go +++ b/runner/pkg/triggers/predicates_test.go @@ -718,30 +718,6 @@ func TestNodeNotReady_DoesNotRefireWhilePersistentlyNotReady(t *testing.T) { } } -// ---------- warning_event ---------- - -func TestWarningEvent_FiresForWarningType(t *testing.T) { - ev := asObj(t, `{ - "type":"Warning", - "reason":"FailedScheduling", - "involvedObject":{"kind":"Pod","namespace":"prod","name":"web-0"} - }`) - if !warningEventMatcher().Predicate(ev, nil) { - t.Error("Warning Event must fire") - } -} - -func TestWarningEvent_DropsNormalType(t *testing.T) { - ev := asObj(t, `{ - "type":"Normal", - "reason":"Created", - "involvedObject":{"kind":"Pod","namespace":"prod","name":"web-0"} - }`) - if warningEventMatcher().Predicate(ev, nil) { - t.Error("Normal Event must not fire") - } -} - // ---------- engine integration ---------- func TestEngine_FiresMultipleMatchersForSamePod(t *testing.T) { diff --git a/runner/pkg/triggers/types.go b/runner/pkg/triggers/types.go index a01fe69..d5c11c6 100644 --- a/runner/pkg/triggers/types.go +++ b/runner/pkg/triggers/types.go @@ -2,8 +2,7 @@ // side. Most kubewatch events match nothing and are silently dropped; // the few that match a registered trigger emit a Finding with a // specific aggregation_key (`report_crash_loop`, `pod_oom_killer_enricher`, -// `image_pull_backoff_reporter`, `job_failure`, `node_not_ready`, -// `Kubernetes Warning Event`, …). +// `image_pull_backoff_reporter`, `job_failure`, `node_not_ready`, …). // // Matchers are declared as data-driven MatcherSpec values rather than // hardcoded if-blocks so when stage 2.3 ships DB-stored playbook config @@ -170,9 +169,7 @@ type Match struct { // bare Pod) or when the chain doesn't terminate at a known kind. Owner OwnerRef - // SubjectName / SubjectNamespace come from obj.metadata. The matcher - // may override SubjectName for special cases (warning_event uses - // involvedObject.name, not obj.metadata.name). + // SubjectName / SubjectNamespace come from obj.metadata. SubjectName string SubjectNamespace string SubjectKind string // lowercased; "pod" | "deployment" | etc. From 80d30216fcc72bc4bc45482d4ebbe6c91a6c7ba2 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 14:28:22 +0530 Subject: [PATCH 32/40] chore: route CODEOWNERS to @nudgebee/oss team (#448) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * chore: point CODEOWNERS at real maintainers The previous CODEOWNERS routed all paths to @nudgebee/maintainers, a team that does not exist — so the file was inert and the OpenSSF Scorecard Branch-Protection check stayed capped. List the two write-access maintainers directly so code-owner reviews can actually be required and satisfied (each reviews the other's PRs). * chore: use @nudgebee/oss team for CODEOWNERS Created the @nudgebee/oss team (write access, maintainer members) so a real group owns the code rather than individual handles or the non-existent @nudgebee/maintainers. Each PR is reviewed by a teammate (authors can't self-satisfy code-owner review). --- .github/CODEOWNERS | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS index 4246061..0daaa46 100644 --- a/.github/CODEOWNERS +++ b/.github/CODEOWNERS @@ -1,9 +1,10 @@ # Default reviewers for all changes in this repo. -# Adjust the team handle below to match your GitHub org/team. +# @nudgebee/oss is the maintainers team (must have write access). A PR +# author cannot satisfy their own code-owner review, so a teammate reviews. -* @nudgebee/maintainers +* @nudgebee/oss # Chart-specific -/charts/ @nudgebee/maintainers -/.github/workflows/ @nudgebee/maintainers -/installation.sh @nudgebee/maintainers +/charts/ @nudgebee/oss +/.github/workflows/ @nudgebee/oss +/installation.sh @nudgebee/oss From 5b2521dc3f06edea44f5a89479ff65a0380c3a7a Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Tue, 2 Jun 2026 17:20:05 +0530 Subject: [PATCH 33/40] fix(runner): allowlist pod_script_run_enricher for unsigned api-server calls (#453) * fix(runner): allowlist pod_script_run_enricher for unsigned api-server calls * chore: update image tags for main release * docs(runner): note pod_script_run_enricher allowlist security debt --------- Co-authored-by: github-actions[bot] --- charts/nudgebee-agent/values.yaml | 2 +- runner/cmd/agent/main.go | 18 +++++++++++++++++- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index e0e090e..c81d550 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-06-02T04-24-22_10ba4386e158ca6108aff1b8d513507d8c47cc09 + tag: 2026-06-02T08-54-58_42d1e24062422e1fca0bd5e40c4a13deb7636e34 # Image template the pod_profiler action launches debugger pods from. # The agent substitutes `{}` for the variant (bpf, jvm, python, perf, ruby). # Surfaces as PROFILER_IMAGE; leave empty to fall back to the binary default. diff --git a/runner/cmd/agent/main.go b/runner/cmd/agent/main.go index 1efbac0..a739a9f 100644 --- a/runner/cmd/agent/main.go +++ b/runner/cmd/agent/main.go @@ -461,7 +461,23 @@ func run(ctx context.Context, logger *slog.Logger, cfg *config.Config) error { runner := podrunner.New(typedKube, cfg.ScannerNamespace, cfg.ScannerServiceAccount, cfg.AccountID) rh := podrunner.Handlers(runner) maps.Copy(handlers, rh) - // NOT a light-action — same trust posture as pod_bash_enricher. + // By trust posture pod_script_run_enricher belongs with pod_bash_enricher + // (arbitrary command execution → HMAC/RSA only). But api-server's + // relay.CommandExecutor dispatches it UNSIGNED behind the relay's + // shared-secret gate — the k8s-mode DB integration connection tests + // (postgresql/mysql/clickhouse/mssql/oracle), runbook-server, and + // llm-server all reach it this way and none of them sign. Same situation + // as the PrometheusRule actions carved in below. Without this the + // dispatcher rejects every such request with "not in light-action + // allowlist", surfacing in the UI as a misleading "failed to connect to + // the cluster". Allowlist it here to close the gap without forcing + // signing into api-server's relay client. pod_bash_enricher / pod_profiler + // stay OUT — they have no unsigned api-server caller. + // TODO(security): this trades per-request HMAC/RSA verification for the + // relay's shared-secret gate, so a relay/secret compromise yields + // arbitrary in-cluster command execution. Remove this entry once + // api-server's relay client signs pod_script_run_enricher. + lightActions["pod_script_run_enricher"] = struct{}{} logger.Info("pod-runner enabled", "default_namespace", cfg.ScannerNamespace, "service_account", cfg.ScannerServiceAccount, From 7c2cd950bb3ccd01982be1f99d36d9592f2f5319 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Wed, 3 Jun 2026 11:39:01 +0530 Subject: [PATCH 34/40] fix(chart): decouple MUTATE_ENABLED from .Values.rsa (#452) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * fix(chart): decouple MUTATE_ENABLED from .Values.rsa MUTATE_ENABLED was only set when the optional .Values.rsa block was configured, which left the runner's mutate subsystem off on every fresh install. That made the light-action carve-outs added in #446 (create_or_replace_alert_rule, delete_alert_rule) unreachable: a UI- initiated event-rule create lands in the api-server DB but the agent never registers the handlers, so the PrometheusRule CR is never written. Worked around on dev with `kubectl set env deploy/... MUTATE_ENABLED=true`. Move MUTATE_ENABLED out of the rsa-conditional block so it is always true; keep RSA_PRIVATE_KEY_PATH inside the block because it points at a file that only exists when the rsa secret is mounted. The agent's auth boundary lives in the validator, not at registration time — only explicitly-allowlisted light actions accept unsigned requests; all other Group-D mutations still fall through to the HMAC/RSA-partial-keys path and 403 without a signed request, so enabling the subsystem here does not loosen the security posture for installs without rsa. A short comment above the env block spells the posture out so a future reader doesn't re-couple it. Verified: - helm lint passes - ct lint --lint-conf .github/configs/lintconf.yaml --check-version- increment=false (same flags helm-dev-lint.yml uses) passes - helm template with no rsa renders MUTATE_ENABLED=true and no RSA_PRIVATE_KEY_PATH - helm template with rsa renders both env vars Chart version bumped 0.1.1 -> 0.1.2 (user-visible env change). * fix(chart): expose MUTATE_ENABLED as runner.mutateEnabled (default true) Review feedback on #452: a compliance-driven operator should be able to ship a strictly read-only deployment with no mutate handlers registered at all, not just the always-on default we landed in the first revision. - values.yaml: new `runner.mutateEnabled: true` with a comment pointing at the auth boundary so an operator knows what flipping it does. - _helpers.tpl: select between "true" and "false" with `eq ... false`, not `default true`. `default` treats an explicit `false` as unset and re-enables the subsystem; the `eq` form preserves an explicit opt-out. Default behaviour is unchanged: MUTATE_ENABLED=true so the light-action alert-rule path keeps working out of the box. Verified with `helm template` for all three states (unset / =true / =false). * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- charts/nudgebee-agent/Chart.yaml | 4 ++-- charts/nudgebee-agent/templates/_helpers.tpl | 19 +++++++++++++++++-- charts/nudgebee-agent/values.yaml | 9 ++++++++- 3 files changed, 27 insertions(+), 5 deletions(-) diff --git a/charts/nudgebee-agent/Chart.yaml b/charts/nudgebee-agent/Chart.yaml index 486f940..1cde18a 100644 --- a/charts/nudgebee-agent/Chart.yaml +++ b/charts/nudgebee-agent/Chart.yaml @@ -29,8 +29,8 @@ annotations: # these are set to the right value by .github/workflows/release.yaml # we use 0.0.1 as a placeholder for the version` because Helm wont allow `0.0.0` and we want to be able to run # `helm install` on development checkouts without updating this file. the version doesn't matter in that case anyway -version: 0.1.1 -appVersion: 0.1.1 +version: 0.1.2 +appVersion: 0.1.2 dependencies: - name: opencost version: 2.0.1 diff --git a/charts/nudgebee-agent/templates/_helpers.tpl b/charts/nudgebee-agent/templates/_helpers.tpl index ebfa034..c08e632 100644 --- a/charts/nudgebee-agent/templates/_helpers.tpl +++ b/charts/nudgebee-agent/templates/_helpers.tpl @@ -91,9 +91,24 @@ Runner container template. Invoked with root context: include "nudgebee.runner.c - name: PROFILER_IMAGE value: {{ .Values.runner.profilerImage | quote }} {{- end }} - {{- if .Values.rsa }} + # MUTATE_ENABLED gates the runner's mutate subsystem (delete_pod, + # cordon, rollout_restart, PrometheusRule CRUD, AlertManager silences, + # Loki rules, ...). The auth boundary lives inside the runner — only + # the explicitly-allowlisted light actions accept unsigned requests; + # every other mutate action falls through to the validator's + # HMAC/RSA-partial-keys path and is rejected without a signed request. + # So enabling the subsystem here does NOT loosen the security posture + # on installations that omit `.Values.rsa`; it only makes the + # light-action carve-outs (currently create_or_replace_alert_rule / + # delete_alert_rule) reachable end-to-end. + # + # Operators who want a strictly read-only deployment can set + # `runner.mutateEnabled: false`. The `eq ... false` pattern is + # intentional: `default true` would treat an explicit `false` as + # unset and re-enable the subsystem. - name: MUTATE_ENABLED - value: "true" + value: {{ if eq .Values.runner.mutateEnabled false }}"false"{{ else }}"true"{{ end }} + {{- if .Values.rsa }} - name: RSA_PRIVATE_KEY_PATH value: /etc/nudgebee/auth/prv {{- end }} diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index c81d550..790f7a9 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-06-02T08-54-58_42d1e24062422e1fca0bd5e40c4a13deb7636e34 + tag: 2026-06-02T11-50-30_5b2521dc3f06edea44f5a89479ff65a0380c3a7a # Image template the pod_profiler action launches debugger pods from. # The agent substitutes `{}` for the variant (bpf, jvm, python, perf, ruby). # Surfaces as PROFILER_IMAGE; leave empty to fall back to the binary default. @@ -81,6 +81,13 @@ runner: # ingress/networkpolicy writes, resource quotas, limit ranges, namespace creation, # statefulset scaling, workload creation, and rollout lifecycle management. enableWritePermissions: false + # Kill-switch for the runner's mutate subsystem (delete_pod, cordon, + # rollout_restart, PrometheusRule CRUD, AlertManager silences, Loki rules). + # Default is true so the light-action alert-rule path (driven by the UI) + # works without extra configuration; the auth boundary lives in the runner, + # not here. Set to false for a strictly read-only deployment where every + # mutate action — light-action or not — is unregistered at startup. + mutateEnabled: true customClusterRoleRules: [] imagePullSecrets: [] extraVolumes: [] From 6ddea90fd555109be57c94ffc3b3232cde92fc3b Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Wed, 3 Jun 2026 12:43:42 +0530 Subject: [PATCH 35/40] ci(release): pin runner image to the build in the release's history (#455) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The chart's runner.image.tag was set by update-image-tags.yml at PR time, which records the newest *already-published* GHCR image — i.e. the previous build, because a PR's own runner image isn't built until it lands on main. So a chart cut at commit N shipped the runner image from N-1. This off-by-one shipped rc-5 (commit 5b2521dc, with the pod_script_run_enricher allowlist fix #453) with the pre-#453 runner image (42d1e24), so every env on rc-5 ran an agent without the fix. Pin authoritatively at release time instead: pick the newest nudgebee-agent image whose commit is an ancestor of the release commit, and fail the release if none exists. A released chart can no longer ship a runner image that predates or isn't part of its own code. Applied to both release-rc.yml and release.yml. Verified against history: HEAD=5b2521dc now selects 11-50_5b2521dc (not the old 08-54_42d1e24), and HEAD=42d1e24 correctly selects its own image, not a newer non-ancestor. --- .github/workflows/release-rc.yml | 32 ++++++++++++++++++++++++++++++++ .github/workflows/release.yml | 29 +++++++++++++++++++++++++++++ 2 files changed, 61 insertions(+) diff --git a/.github/workflows/release-rc.yml b/.github/workflows/release-rc.yml index 00a7a34..e2b533f 100644 --- a/.github/workflows/release-rc.yml +++ b/.github/workflows/release-rc.yml @@ -11,6 +11,7 @@ jobs: permissions: contents: write id-token: write # keyless cosign signing of chart packages + packages: read # read GHCR tags to pin the runner image runs-on: ubuntu-latest steps: - name: Checkout @@ -79,6 +80,37 @@ jobs: helm repo add opentelemetry https://open-telemetry.github.io/opentelemetry-helm-charts helm repo update + - name: Pin runner image to the build in this release's history + working-directory: ./charts/nudgebee-agent + env: + GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} + run: | + set -euo pipefail + # The runner image is tagged "_" and built only + # for main commits touching runner/** (runner-image.yaml). Pin the chart + # to the NEWEST such image whose commit is an ancestor of the release + # commit, so a released chart can never ship a runner image that + # predates — or isn't part of — its own code. This replaces relying on + # the PR-time "newest published image" (update-image-tags.yml), which + # records the previous build because a PR's own image isn't built yet + # when that job runs — the off-by-one that shipped rc-5 with a pre-#453 + # runner. + picked="" + while IFS= read -r tag; do + sha="${tag##*_}" + if git merge-base --is-ancestor "$sha" HEAD 2>/dev/null; then + picked="$tag"; break + fi + done < <(gh api -H "Accept: application/vnd.github+json" \ + "/orgs/nudgebee/packages/container/nudgebee-agent/versions?per_page=100" \ + --jq '[.[].metadata.container.tags[]] | map(select(test("^[0-9]{4}.*_[0-9a-f]{40}$"))) | sort | reverse | .[]') + if [ -z "$picked" ]; then + echo "::error::No nudgebee-agent image found for any commit in this release's history — build/push the runner image first." + exit 1 + fi + yq -i ".runner.image.tag=\"$picked\"" values.yaml + echo "Pinned runner.image.tag=$picked" + - name: Run chart-releaser for RC uses: helm/chart-releaser-action@cae68fefc6b5f367a0275617c9f83181ba54714f # v1.7.0 with: diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 3cc00bc..6546e3f 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -11,6 +11,7 @@ jobs: permissions: contents: write id-token: write # keyless cosign signing of chart packages + packages: read # read GHCR tags to pin the runner image runs-on: ubuntu-latest steps: - name: Checkout @@ -28,6 +29,34 @@ jobs: with: version: v3.10.0 + - name: Pin runner image to the build in this release's history + working-directory: ./charts/nudgebee-agent + env: + GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} + run: | + set -euo pipefail + # The runner image is tagged "_" and built only + # for main commits touching runner/** (runner-image.yaml). Pin the chart + # to the NEWEST such image whose commit is an ancestor of the release + # commit, so a released chart can never ship a runner image that + # predates — or isn't part of — its own code. See release-rc.yml for the + # off-by-one this fixes (rc-5 shipped a pre-#453 runner). + picked="" + while IFS= read -r tag; do + sha="${tag##*_}" + if git merge-base --is-ancestor "$sha" HEAD 2>/dev/null; then + picked="$tag"; break + fi + done < <(gh api -H "Accept: application/vnd.github+json" \ + "/orgs/nudgebee/packages/container/nudgebee-agent/versions?per_page=100" \ + --jq '[.[].metadata.container.tags[]] | map(select(test("^[0-9]{4}.*_[0-9a-f]{40}$"))) | sort | reverse | .[]') + if [ -z "$picked" ]; then + echo "::error::No nudgebee-agent image found for any commit in this release's history — build/push the runner image first." + exit 1 + fi + yq -i ".runner.image.tag=\"$picked\"" values.yaml + echo "Pinned runner.image.tag=$picked" + - name: Add dependency chart repos run: | helm repo add opencost https://opencost.github.io/opencost-helm-chart From 128d140be7a21099785e06c81af587d62dd943c8 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Wed, 3 Jun 2026 14:39:05 +0530 Subject: [PATCH 36/40] feat(runner): expose pprof endpoints for memory burst diagnosis (#458) * feat(runner): expose net/http/pprof on the runner http server The runner shows transient heap bursts (live heap ~60-90MB, heap_sys spikes to >1.5GB then releases) several times a day, driven by on-demand dispatched tasks. A point-in-time heap snapshot misses the cause because the memory is freed between bursts. Register the standard pprof profiles on the existing :5000 mux so `go tool pprof` can attribute allocations. /debug/pprof/allocs is cumulative over the process lifetime, so it captures the burst hotspots even after GC reclaims them. * fix(runner): gate pprof behind PPROF_ENABLED (default off) Address review: net/http/pprof was registered unconditionally on the :5000 listener, exposing unauthenticated profiling endpoints in-cluster (DoS / info-disclosure risk). Gate the handlers on a new PPROF_ENABLED env (config.PprofEnabled, default false), surfaced via the chart value runner.pprof (default false). Enable only for active debugging. --- charts/nudgebee-agent/templates/_helpers.tpl | 4 ++++ charts/nudgebee-agent/values.yaml | 4 ++++ runner/cmd/agent/main.go | 16 ++++++++++++++++ runner/pkg/config/config.go | 6 ++++++ 4 files changed, 30 insertions(+) diff --git a/charts/nudgebee-agent/templates/_helpers.tpl b/charts/nudgebee-agent/templates/_helpers.tpl index c08e632..74ca722 100644 --- a/charts/nudgebee-agent/templates/_helpers.tpl +++ b/charts/nudgebee-agent/templates/_helpers.tpl @@ -83,6 +83,10 @@ Runner container template. Invoked with root context: include "nudgebee.runner.c value: {{ .Values.runner.relay_address }} - name: SCANNERS_ENABLED value: "true" + {{- if .Values.runner.pprof }} + - name: PPROF_ENABLED + value: "true" + {{- end }} - name: SCANNER_NAMESPACE value: {{ .Release.Namespace }} - name: SCANNER_SERVICE_ACCOUNT diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 790f7a9..752ad1d 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -67,6 +67,10 @@ runner: # Surfaces as PROFILER_IMAGE; leave empty to fall back to the binary default. profilerImage: "ghcr.io/nudgebee/application-profiler-{}:dc5fd6d" imagePullPolicy: IfNotPresent + # Expose net/http/pprof on the runner HTTP listener (surfaces as + # PPROF_ENABLED). Off by default — the endpoints are unauthenticated; + # enable only for active memory/CPU debugging. + pprof: false resources: requests: cpu: 250m diff --git a/runner/cmd/agent/main.go b/runner/cmd/agent/main.go index a739a9f..4e53416 100644 --- a/runner/cmd/agent/main.go +++ b/runner/cmd/agent/main.go @@ -12,6 +12,7 @@ import ( "log/slog" "maps" "net/http" + "net/http/pprof" "os" "os/signal" "runtime" @@ -668,6 +669,21 @@ func run(ctx context.Context, logger *slog.Logger, cfg *config.Config) error { mux := http.NewServeMux() mux.Handle("/", fwd.Mux()) mux.Handle("/metrics", mreg.Handler()) + // pprof: the runner exhibits transient heap bursts (live heap stays + // small, heap_sys spikes to >1.5GB then releases). Expose the + // standard profiles so `go tool pprof` can attribute allocations — + // /debug/pprof/allocs is cumulative and survives the burst, which a + // point-in-time heap snapshot does not. Gated off by default: the + // endpoints are unauthenticated and abusable for DoS/info-disclosure, + // so enable via PPROF_ENABLED only for active debugging. + if cfg.PprofEnabled { + logger.Info("pprof endpoints enabled", "path", "/debug/pprof/") + mux.HandleFunc("/debug/pprof/", pprof.Index) + mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline) + mux.HandleFunc("/debug/pprof/profile", pprof.Profile) + mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol) + mux.HandleFunc("/debug/pprof/trace", pprof.Trace) + } mux.HandleFunc("/api/actions", func(w http.ResponseWriter, r *http.Request) { if r.Method != http.MethodPost { http.Error(w, "method not allowed", http.StatusMethodNotAllowed) diff --git a/runner/pkg/config/config.go b/runner/pkg/config/config.go index 251998d..7af5548 100644 --- a/runner/pkg/config/config.go +++ b/runner/pkg/config/config.go @@ -69,6 +69,11 @@ type Config struct { // HTTP server (alerts intake + healthz). Default :5000. HTTPListenAddr string + // PprofEnabled exposes net/http/pprof on the HTTP listener. Off by + // default — the profiling endpoints are unauthenticated and can be + // abused for DoS/info-disclosure, so enable only for active debugging. + PprofEnabled bool + // Discovery: enabled when DiscoveryEnabled=true. Resync interval is // DISCOVERY_RESYNC (default 30m); KUBECONFIG env is honoured by client-go. DiscoveryEnabled bool @@ -144,6 +149,7 @@ func FromEnv() (*Config, error) { HTTPProxyTargets: os.Getenv("HTTP_PROXY_TARGETS"), LokiRulesURL: os.Getenv("LOKI_RULES_URL"), HTTPListenAddr: cmp(os.Getenv("HTTP_LISTEN_ADDR"), ":5000"), + PprofEnabled: envBool("PPROF_ENABLED", false), // K8s subsystems default-on so the agent is drop-in compatible with // the legacy runner Deployment — no env additions needed for cutover. // Operators can opt out per-subsystem via DISCOVERY_ENABLED=false etc. From e336bf46149b67360b5bff113f5f17fb342c96b0 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Wed, 3 Jun 2026 21:12:38 +0530 Subject: [PATCH 37/40] fix(servicemap): aggregate edge metrics server-side to stop multi-GB runner heap spikes (#459) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * fix(servicemap): aggregate edge metrics server-side to stop heap spikes The service_map action drove the runner's transient memory spikes. A heap profile captured during a live 923MB spike showed servicemap.parsePromRangeResponse → json.Unmarshal holding 344MB (73% of heap), with up to MaxParallel=8 fetches running concurrently — pushing the runner toward ~1.5GB before GC reclaimed it. Cause: the connection/request queries fetched raw, unaggregated series. container_http_requests_total alone is ~20–40k series in a busy cluster (status/method/instance/pod/le cardinality), all decoded into map[string]string + [][]any. build.go then collapses every series down to its edge (src/dst workload) via la. += r.Last — so the entire raw cardinality was pulled and decoded only to be summed away. Fix: aggregate server-side by the same edge labels build.go groups on — sum by(edge) for the additive counts/bytes, max by(edge) for the latency ratio (mirroring build.go's `if r.Last > la.latency`). Prometheus now returns one series per edge (hundreds) instead of the raw cardinality. Validated against live Prometheus: container_http_requests_total 19,456 → 589 series (~32x); other edge queries similarly collapsed. Output is identical because build.go already summed/maxed across the collapsed series; only the fetch shape and memory footprint change. Range query and parser are unchanged, so coverage and values are exactly preserved. * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- charts/nudgebee-agent/values.yaml | 2 +- runner/pkg/servicemap/queries.go | 57 ++++++++++++++++++++++--------- 2 files changed, 41 insertions(+), 18 deletions(-) diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 752ad1d..1070fb1 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-06-02T11-50-30_5b2521dc3f06edea44f5a89479ff65a0380c3a7a + tag: 2026-06-03T09-09-29_128d140be7a21099785e06c81af587d62dd943c8 # Image template the pod_profiler action launches debugger pods from. # The agent substitutes `{}` for the variant (bpf, jvm, python, perf, ruby). # Surfaces as PROFILER_IMAGE; leave empty to fall back to the binary default. diff --git a/runner/pkg/servicemap/queries.go b/runner/pkg/servicemap/queries.go index 47a12c6..ab372b3 100644 --- a/runner/pkg/servicemap/queries.go +++ b/runner/pkg/servicemap/queries.go @@ -13,6 +13,29 @@ package servicemap import "strings" +// edgeGroupBy is the label set service-map edges are keyed on — it mirrors +// the labels edgeFromConnectionLabels (build.go) reads. Connection/request +// metrics carry high-cardinality labels (status, method, instance, pod, le, +// …) that the map builder discards: it collapses everything down to these +// edge labels via la. += r.Last. container_http_requests_total alone +// is ~20–40k raw series in a busy cluster; decoding all of it into +// map[string]string + [][]any was the dominant heap consumer (~1GB per +// Build, captured in a live heap profile). +// +// We aggregate server-side by the same labels so Prometheus returns one +// series per edge (hundreds) instead of the full raw cardinality. The result +// is identical — build.go already summed across the collapsed series — at a +// fraction of the memory. +const edgeGroupBy = "src_workload_kind, src_kind, src_workload_name, " + + "src_workload_namespace, destination_workload_kind, " + + "destination_workload_name, destination_workload_namespace, destination_ip" + +// sumByEdge / maxByEdge wrap an expression in a server-side aggregation over +// edgeGroupBy. sum mirrors the additive `la.x += r.Last` accumulation in +// build.go; max mirrors the latency `if r.Last > la.latency` projection. +func sumByEdge(expr string) string { return "sum by (" + edgeGroupBy + ") (" + expr + ")" } +func maxByEdge(expr string) string { return "max by (" + edgeGroupBy + ") (" + expr + ")" } + // Queries is the per-query map. Each value is a PromQL expression with // $RANGE, $SRC_FILTER, $DST_FILTER, $POD_FILTER, $NAMESPACE_FILTER // placeholders and a __CLUSTER__ token (replaced at fetch time with the @@ -31,14 +54,14 @@ var Queries = map[string]string{ "kube_statefulset_replicas": "kube_statefulset_replicas{__CLUSTER__}", "container_info": "container_info{__CLUSTER__}", "container_application_type": "container_application_type{__CLUSTER__}", - "container_net_tcp_successful_connects": "rate(container_net_tcp_successful_connects_total{__CLUSTER__}[$RANGE]) > 0", - "container_net_tcp_failed_connects": "rate(container_net_tcp_failed_connects_total{__CLUSTER__}[$RANGE]) > 0", - "container_net_tcp_active_connections": "container_net_tcp_active_connections{__CLUSTER__} > 0", - "container_net_tcp_retransmits": "rate(container_net_tcp_retransmits_total{__CLUSTER__}[$RANGE]) > 0", - "container_http_requests_total_count": "increase(container_http_requests_total{__CLUSTER__}[$RANGE])", - "container_http_requests_count": "rate(container_http_requests_total{__CLUSTER__}[$RANGE])", - "container_http_requests_failure_count": `rate(container_http_requests_total{__CLUSTER__ status=~"4..|5.."}[$RANGE]) > 0`, - "container_http_requests_latency": "(rate(container_http_requests_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_http_requests_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", + "container_net_tcp_successful_connects": sumByEdge("rate(container_net_tcp_successful_connects_total{__CLUSTER__}[$RANGE])") + " > 0", + "container_net_tcp_failed_connects": sumByEdge("rate(container_net_tcp_failed_connects_total{__CLUSTER__}[$RANGE])") + " > 0", + "container_net_tcp_active_connections": sumByEdge("container_net_tcp_active_connections{__CLUSTER__}") + " > 0", + "container_net_tcp_retransmits": sumByEdge("rate(container_net_tcp_retransmits_total{__CLUSTER__}[$RANGE])") + " > 0", + "container_http_requests_total_count": sumByEdge("increase(container_http_requests_total{__CLUSTER__}[$RANGE])"), + "container_http_requests_count": sumByEdge("rate(container_http_requests_total{__CLUSTER__}[$RANGE])"), + "container_http_requests_failure_count": sumByEdge(`rate(container_http_requests_total{__CLUSTER__ status=~"4..|5.."}[$RANGE])`) + " > 0", + "container_http_requests_latency": maxByEdge("(rate(container_http_requests_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_http_requests_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0"), "container_postgres_requests_count": "rate(container_postgres_queries_total{__CLUSTER__}[$RANGE])", "container_postgres_requests_total_count": "increase(container_postgres_queries_total{__CLUSTER__}[$RANGE]) > 0", "container_postgres_requests_latency": "(rate(container_postgres_queries_duration_seconds_total_sum{__CLUSTER__}[$RANGE]) / rate(container_postgres_queries_duration_seconds_total_count{__CLUSTER__}[$RANGE])) > 0", @@ -71,8 +94,8 @@ var Queries = map[string]string{ "container_rabbitmq_messages": "rate(container_rabbitmq_messages_total{__CLUSTER__}[$RANGE])", "container_nats_messages": "rate(container_nats_messages_total{__CLUSTER__}[$RANGE])", "ip_to_fqdn": "sum by(fqdn, ip) (ip_to_fqdn{__CLUSTER__})", - "container_net_tcp_bytes_sent": "rate(container_net_tcp_bytes_sent_total{__CLUSTER__}[$RANGE]) > 0", - "container_net_tcp_bytes_received": "rate(container_net_tcp_bytes_received_total{__CLUSTER__}[$RANGE]) > 0", + "container_net_tcp_bytes_sent": sumByEdge("rate(container_net_tcp_bytes_sent_total{__CLUSTER__}[$RANGE])") + " > 0", + "container_net_tcp_bytes_received": sumByEdge("rate(container_net_tcp_bytes_received_total{__CLUSTER__}[$RANGE])") + " > 0", "container_cpu_usage": "rate(container_resources_cpu_usage_seconds_total{__CLUSTER__}[$RANGE])", "container_cpu_delay": "rate(container_resources_cpu_delay_seconds_total{__CLUSTER__}[$RANGE])", "container_throttled_time": "rate(container_resources_cpu_throttled_seconds_total{__CLUSTER__}[$RANGE])", @@ -98,15 +121,15 @@ var ApplicationQueries = map[string]string{ "kube_daemonset_status_desired_number_scheduled": "kube_daemonset_status_desired_number_scheduled{__CLUSTER__}", "kube_statefulset_replicas": "kube_statefulset_replicas{__CLUSTER__}", "kube_pod_status_scheduled": `kube_pod_status_scheduled{__CLUSTER__ condition="true"} > 0`, - "container_net_tcp_successful_connects": "(rate(container_net_tcp_successful_connects_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_successful_connects_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", - "container_net_tcp_failed_connects": "(rate(container_net_tcp_failed_connects_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_failed_connects_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", - "container_net_tcp_retransmits": "(rate(container_net_tcp_retransmits_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_retransmits_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", - "container_http_requests_total_count": "(increase(container_http_requests_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (increase(container_http_requests_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", - "container_http_requests_count": "(rate(container_http_requests_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_http_requests_total{__CLUSTER__ $DST_FILTER}[$RANGE]))", + "container_net_tcp_successful_connects": sumByEdge("(rate(container_net_tcp_successful_connects_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_successful_connects_total{__CLUSTER__ $DST_FILTER}[$RANGE]))"), + "container_net_tcp_failed_connects": sumByEdge("(rate(container_net_tcp_failed_connects_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_failed_connects_total{__CLUSTER__ $DST_FILTER}[$RANGE]))"), + "container_net_tcp_retransmits": sumByEdge("(rate(container_net_tcp_retransmits_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_net_tcp_retransmits_total{__CLUSTER__ $DST_FILTER}[$RANGE]))"), + "container_http_requests_total_count": sumByEdge("(increase(container_http_requests_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (increase(container_http_requests_total{__CLUSTER__ $DST_FILTER}[$RANGE]))"), + "container_http_requests_count": sumByEdge("(rate(container_http_requests_total{__CLUSTER__ $SRC_FILTER}[$RANGE])) or (rate(container_http_requests_total{__CLUSTER__ $DST_FILTER}[$RANGE]))"), "container_application_type": "container_application_type{__CLUSTER__}", "ip_to_fqdn": "sum by(fqdn, ip) (ip_to_fqdn{__CLUSTER__})", - "container_net_tcp_bytes_sent": "rate(container_net_tcp_bytes_sent_total{__CLUSTER__ $DST_FILTER}[$RANGE]) or rate(container_net_tcp_bytes_sent_total{__CLUSTER__ $SRC_FILTER}[$RANGE])", - "container_net_tcp_bytes_received": "rate(container_net_tcp_bytes_received_total{__CLUSTER__ $DST_FILTER}[$RANGE]) or rate(container_net_tcp_bytes_received_total{__CLUSTER__ $SRC_FILTER}[$RANGE])", + "container_net_tcp_bytes_sent": sumByEdge("rate(container_net_tcp_bytes_sent_total{__CLUSTER__ $DST_FILTER}[$RANGE]) or rate(container_net_tcp_bytes_sent_total{__CLUSTER__ $SRC_FILTER}[$RANGE])"), + "container_net_tcp_bytes_received": sumByEdge("rate(container_net_tcp_bytes_received_total{__CLUSTER__ $DST_FILTER}[$RANGE]) or rate(container_net_tcp_bytes_received_total{__CLUSTER__ $SRC_FILTER}[$RANGE])"), } // expandPlaceholders substitutes $RANGE/$SRC_FILTER/$DST_FILTER/$POD_FILTER/ From feda5000cee41e166e3b1cd721f83ebd84d9a566 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Wed, 3 Jun 2026 21:53:02 +0530 Subject: [PATCH 38/40] fix(rbac): grant karpenter permissions unconditionally (#454) * fix(rbac): grant karpenter permissions unconditionally The karpenter.sh / karpenter.k8s.aws / karpenter.azure.com rules in the runner and forwarder ClusterRoles were gated on .Capabilities.APIVersions. That gate is evaluated once at chart-render time and fails to grant access in two common cases: - GitOps/templated installs (ArgoCD, Flux, `helm template | kubectl apply`) where .Capabilities does not include CRDs, so the rule is dropped silently. - Karpenter installed after this chart, leaving stale RBAC until the next helm upgrade. Result: the runner hits "nodeclaims.karpenter.sh is forbidden" even on clusters where karpenter is installed. An RBAC rule referencing an absent apiGroup/resource is inert, so granting these permissions unconditionally is functionally equivalent to the gated behavior but becomes active the moment karpenter is present, on every install path. The forwarder gate additionally only checked v1beta1, missing karpenter v1 clusters; dropping it fixes that too. * fix(rbac): read-only karpenter for forwarder, gate runner writes Address review feedback: - Forwarder (kubewatch) only watches resources, so grant it read-only (get/list/watch) access to karpenter resources instead of write verbs. - Runner keeps unconditional read access (fixes the original "forbidden to list nodeclaims" error) but gates write verbs behind runner.enableWritePermissions, consistent with the Argo Rollouts block. - Normalize list-item indentation to 6 spaces to match the rest of the file. * chore: update image tags for main release --------- Co-authored-by: github-actions[bot] --- .../templates/forwarder-service-account.yaml | 76 +++++++--------- .../templates/runner-service-account.yaml | 89 ++++++++++--------- 2 files changed, 79 insertions(+), 86 deletions(-) diff --git a/charts/nudgebee-agent/templates/forwarder-service-account.yaml b/charts/nudgebee-agent/templates/forwarder-service-account.yaml index a4268dd..e4d437f 100644 --- a/charts/nudgebee-agent/templates/forwarder-service-account.yaml +++ b/charts/nudgebee-agent/templates/forwarder-service-account.yaml @@ -131,52 +131,40 @@ rules: - watch {{- end }} -{{- if (.Capabilities.APIVersions.Has "karpenter.sh/v1beta1/NodePool") }} - - apiGroups: - - karpenter.sh - resources: - - nodepools - - nodepools/status - - nodeclaims - - nodeclaims/status - verbs: - - get - - list - - watch - - create - - delete - - patch -{{- end }} + # Karpenter permissions are granted unconditionally. An RBAC rule for an + # absent CRD is inert and becomes active the moment karpenter is installed. + # This avoids stale RBAC under GitOps/templated installs (where .Capabilities + # cannot see CRDs) or when karpenter is installed after this chart. + # The forwarder only watches resources, so it gets read-only access. + - apiGroups: + - karpenter.sh + resources: + - nodepools + - nodepools/status + - nodeclaims + - nodeclaims/status + verbs: + - get + - list + - watch -{{- if (.Capabilities.APIVersions.Has "karpenter.k8s.aws/v1beta1/EC2NodeClass") }} - - apiGroups: - - karpenter.k8s.aws - resources: - - ec2nodeclasses - verbs: - - get - - list - - watch - - create - - delete - - update - - patch -{{- end }} + - apiGroups: + - karpenter.k8s.aws + resources: + - ec2nodeclasses + verbs: + - get + - list + - watch -{{- if (.Capabilities.APIVersions.Has "karpenter.azure.com/v1alpha2/AKSNodeClass") }} - - apiGroups: - - karpenter.azure.com - resources: - - aksnodeclasses - verbs: - - get - - list - - watch - - create - - delete - - update - - patch -{{- end }} + - apiGroups: + - karpenter.azure.com + resources: + - aksnodeclasses + verbs: + - get + - list + - watch --- apiVersion: v1 diff --git a/charts/nudgebee-agent/templates/runner-service-account.yaml b/charts/nudgebee-agent/templates/runner-service-account.yaml index 9e98f13..5782d57 100644 --- a/charts/nudgebee-agent/templates/runner-service-account.yaml +++ b/charts/nudgebee-agent/templates/runner-service-account.yaml @@ -442,52 +442,57 @@ rules: {{- end }} {{- end }} -{{- if or (.Capabilities.APIVersions.Has "karpenter.sh/v1beta1/NodePool") (.Capabilities.APIVersions.Has "karpenter.sh/v1/NodePool") }} - - apiGroups: - - karpenter.sh - resources: - - nodepools - - nodepools/status - - nodeclaims - - nodeclaims/status - verbs: - - get - - list - - watch - - create - - delete - - patch - - update + # Karpenter read permissions are granted unconditionally. An RBAC rule for an + # absent CRD is inert and becomes active the moment karpenter is installed. + # This avoids stale RBAC under GitOps/templated installs (where .Capabilities + # cannot see CRDs) or when karpenter is installed after this chart. + # Write verbs are gated behind runner.enableWritePermissions. + - apiGroups: + - karpenter.sh + resources: + - nodepools + - nodepools/status + - nodeclaims + - nodeclaims/status + verbs: + - get + - list + - watch +{{- if .Values.runner.enableWritePermissions }} + - create + - delete + - patch + - update {{- end }} -{{- if or (.Capabilities.APIVersions.Has "karpenter.k8s.aws/v1beta1/EC2NodeClass") (.Capabilities.APIVersions.Has "karpenter.k8s.aws/v1/EC2NodeClass") }} - - apiGroups: - - karpenter.k8s.aws - resources: - - ec2nodeclasses - verbs: - - get - - list - - watch - - create - - delete - - update - - patch + - apiGroups: + - karpenter.k8s.aws + resources: + - ec2nodeclasses + verbs: + - get + - list + - watch +{{- if .Values.runner.enableWritePermissions }} + - create + - delete + - update + - patch {{- end }} -{{- if .Capabilities.APIVersions.Has "karpenter.azure.com/v1alpha2/AKSNodeClass" }} - - apiGroups: - - karpenter.azure.com - resources: - - aksnodeclasses - verbs: - - get - - list - - watch - - create - - delete - - update - - patch + - apiGroups: + - karpenter.azure.com + resources: + - aksnodeclasses + verbs: + - get + - list + - watch +{{- if .Values.runner.enableWritePermissions }} + - create + - delete + - update + - patch {{- end }} {{- if .Capabilities.APIVersions.Has "snapshot.storage.k8s.io/v1/VolumeSnapshot" }} From d92cc3d801eec2981f2cf69b61393a795f211d65 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Thu, 4 Jun 2026 12:04:19 +0530 Subject: [PATCH 39/40] chore(deps): bump docker/setup-qemu-action from 4.0.0 to 4.1.0 (#465) * chore(deps): bump docker/setup-qemu-action from 4.0.0 to 4.1.0 Bumps [docker/setup-qemu-action](https://github.com/docker/setup-qemu-action) from 4.0.0 to 4.1.0. - [Release notes](https://github.com/docker/setup-qemu-action/releases) - [Commits](https://github.com/docker/setup-qemu-action/compare/ce360397dd3f832beb865e1373c09c0e9f86d70a...06116385d9baf250c9f4dcb4858b16962ea869c3) --- updated-dependencies: - dependency-name: docker/setup-qemu-action dependency-version: 4.1.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] * chore: update image tags for main release --------- Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: github-actions[bot] --- .github/workflows/runner-image.yaml | 2 +- charts/nudgebee-agent/values.yaml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/runner-image.yaml b/.github/workflows/runner-image.yaml index 0dab06a..23884a2 100644 --- a/.github/workflows/runner-image.yaml +++ b/.github/workflows/runner-image.yaml @@ -22,7 +22,7 @@ jobs: packages: write steps: - name: Set up QEMU - uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4 + uses: docker/setup-qemu-action@06116385d9baf250c9f4dcb4858b16962ea869c3 # v4 - name: Set up Docker Buildx uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4 diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index 1070fb1..c9d32f5 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -61,7 +61,7 @@ runnerServiceAccount: runner: image: repository: ghcr.io/nudgebee/nudgebee-agent - tag: 2026-06-03T09-09-29_128d140be7a21099785e06c81af587d62dd943c8 + tag: 2026-06-03T15-43-09_e336bf46149b67360b5bff113f5f17fb342c96b0 # Image template the pod_profiler action launches debugger pods from. # The agent substitutes `{}` for the variant (bpf, jvm, python, perf, ruby). # Surfaces as PROFILER_IMAGE; leave empty to fall back to the binary default. From 65c09f10dc934851683f8bec946e0df23c4561a2 Mon Sep 17 00:00:00 2001 From: Mayank Pande Date: Fri, 5 Jun 2026 10:30:31 +0530 Subject: [PATCH 40/40] feat(opencost): respect OPENCOST_ENABLED so per-cluster disable stops cost polling (#456) * feat(opencost): disable in-cluster OpenCost by default; runner skips discovery when off OpenCost now runs centrally on the Nudgebee server side (one multi-tenant instance per environment) instead of one per cluster. - values.yaml: default opencost.enabled=false (agent ships no in-cluster OpenCost). - runner: gate cost discovery+polling on OPENCOST_ENABLED (default true). When false, skip OPENCOST_ENDPOINT and the cluster-wide `app=opencost` autodiscovery so the runner can't latch onto a neighbouring namespace's OpenCost and keep reporting opencostConnection=true (which would suppress the server-side takeover). With it off the agent reports cost off and the server enrolls the cluster automatically. - runner.yaml: wire OPENCOST_ENABLED into the runner secret from opencost.enabled. Per-cluster rollback: --set opencost.enabled=true restores the in-cluster path (and re-enables runner discovery). The OpenCost chart dependency is retained. * chore: update image tags for main release * feat(opencost): keep opencost.enabled=true by default (per-cluster opt-out) Default stays enabled; --set opencost.enabled=false moves a cluster to the central server-side OpenCost. Runner OPENCOST_ENABLED gating (this PR) makes that opt-out actually stop cost discovery/polling. * fix(opencost): log a warning on invalid OPENCOST_ENABLED value --------- Co-authored-by: github-actions[bot] --- charts/nudgebee-agent/templates/runner.yaml | 4 +++ charts/nudgebee-agent/values.yaml | 5 ++++ runner/cmd/agent/main.go | 33 ++++++++++++++++----- 3 files changed, 35 insertions(+), 7 deletions(-) diff --git a/charts/nudgebee-agent/templates/runner.yaml b/charts/nudgebee-agent/templates/runner.yaml index f7da6e7..83f7978 100644 --- a/charts/nudgebee-agent/templates/runner.yaml +++ b/charts/nudgebee-agent/templates/runner.yaml @@ -90,6 +90,10 @@ type: Opaque stringData: NUDGEBEE_ENDPOINT: {{ .Values.runner.nudgebee.endpoint }} NUDGEBEE_AUTH_SECRET_KEY: {{ .Values.runner.nudgebee.auth_secret_key }} + # Tie cost polling/discovery to the OpenCost subchart toggle. When OpenCost is + # disabled the runner must NOT autodiscover a neighbouring namespace's OpenCost, + # so the server side detects cost is off and takes over centrally. + OPENCOST_ENABLED: {{ .Values.opencost.enabled | quote }} {{- if .Values.globalConfig.prometheus_url }} PROMETHEUS_URL: {{ .Values.globalConfig.prometheus_url | quote }} {{- end }} diff --git a/charts/nudgebee-agent/values.yaml b/charts/nudgebee-agent/values.yaml index c9d32f5..452d9e7 100644 --- a/charts/nudgebee-agent/values.yaml +++ b/charts/nudgebee-agent/values.yaml @@ -158,6 +158,11 @@ nodeAgent: env: - name: SENSITIVE_HEADERS value: "Authorization,Proxy-Authorization,Cookie,Set-Cookie,X-Auth-Token,X-CSRF-Token,X-Session-ID,X-JWT-Token,X-Api-Key,X-Api-Token,X-Access-Token,X-Secret-Token,X-Refresh-Token,X-User-Token,X-Firebase-Auth,X-Google-Auth,X-Authorization,X-Wsse,X-WebService-Token,Authentication,Proxy-Authentication,X-Authentication-Token,X-Device-ID,X-Device-Token,X-Device-Key" +# OpenCost runs per-cluster in the agent by default. To move a cluster to the +# central server-side OpenCost instead, set `--set opencost.enabled=false`: the +# agent then ships no in-cluster OpenCost AND the runner stops discovering/polling +# cost (see OPENCOST_ENABLED), so the server detects cost is off and computes this +# cluster's allocations centrally (reaching its Prometheus via the relay). opencost: enabled: true nameOverride: "" diff --git a/runner/cmd/agent/main.go b/runner/cmd/agent/main.go index 4e53416..269286d 100644 --- a/runner/cmd/agent/main.go +++ b/runner/cmd/agent/main.go @@ -186,15 +186,34 @@ func run(ctx context.Context, logger *slog.Logger, cfg *config.Config) error { logger.Info("alertmanager auto-discovered", "url", u) } } - // Mirrors OpenCostDiscovery.find_open_cost_url. - // OPENCOST_ENDPOINT env wins; falls back to in-cluster Service lookup. - opencostURL := os.Getenv("OPENCOST_ENDPOINT") - if opencostURL == "" { - if u := disc.FindFirst(ctx, svcdiscover.OpencostSelectors); u != "" { - opencostURL = u - logger.Info("opencost auto-discovered", "url", u) + // OpenCost can be disabled at the agent (OPENCOST_ENABLED=false) — cost is then + // computed centrally on the server side. When disabled, skip BOTH the + // OPENCOST_ENDPOINT env and the cluster-wide Service autodiscovery: discovery + // matches `app=opencost` across all namespaces, so otherwise the agent latches + // onto a neighbouring namespace's OpenCost and keeps reporting itself + // cost-enabled, which suppresses the server-side takeover. Defaults to enabled. + opencostEnabled := true + if v := os.Getenv("OPENCOST_ENABLED"); v != "" { + if b, err := strconv.ParseBool(v); err == nil { + opencostEnabled = b + } else { + logger.Warn("invalid OPENCOST_ENABLED, defaulting to enabled", "value", v, "err", err) } } + opencostURL := "" + if opencostEnabled { + // Mirrors OpenCostDiscovery.find_open_cost_url. + // OPENCOST_ENDPOINT env wins; falls back to in-cluster Service lookup. + opencostURL = os.Getenv("OPENCOST_ENDPOINT") + if opencostURL == "" { + if u := disc.FindFirst(ctx, svcdiscover.OpencostSelectors); u != "" { + opencostURL = u + logger.Info("opencost auto-discovered", "url", u) + } + } + } else { + logger.Info("opencost disabled (OPENCOST_ENABLED=false); skipping discovery and cost polling") + } var promClient *prometheus.Client if cfg.PrometheusURL != "" {