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make task signing key generation automatic if not provided #53
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125 changes: 125 additions & 0 deletions
125
deployments/helm-charts/wso2-agentic-engineer-bundle/templates/task-signing-key-job.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| --- | ||
| # ServiceAccount for the task signing key generator Job | ||
| apiVersion: v1 | ||
| kind: ServiceAccount | ||
| metadata: | ||
| name: wso2-ae-key-generator | ||
| namespace: {{ .Release.Namespace }} | ||
| labels: | ||
| app.kubernetes.io/managed-by: {{ .Release.Service }} | ||
| app.kubernetes.io/part-of: wso2-agentic-engineer | ||
| annotations: | ||
| "helm.sh/hook": pre-install,pre-upgrade | ||
| "helm.sh/hook-weight": "-10" | ||
| "helm.sh/hook-delete-policy": before-hook-creation | ||
| --- | ||
| # ClusterRole for the key generator — minimal permissions | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| kind: ClusterRole | ||
| metadata: | ||
| name: wso2-ae-key-generator | ||
| labels: | ||
| app.kubernetes.io/managed-by: {{ .Release.Service }} | ||
| app.kubernetes.io/part-of: wso2-agentic-engineer | ||
| annotations: | ||
| "helm.sh/hook": pre-install,pre-upgrade | ||
| "helm.sh/hook-weight": "-10" | ||
| "helm.sh/hook-delete-policy": before-hook-creation | ||
| rules: | ||
| - apiGroups: [""] | ||
| resources: ["configmaps"] | ||
| verbs: ["get", "create", "patch"] | ||
| --- | ||
| # ClusterRoleBinding for the key generator | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| kind: ClusterRoleBinding | ||
| metadata: | ||
| name: wso2-ae-key-generator | ||
| labels: | ||
| app.kubernetes.io/managed-by: {{ .Release.Service }} | ||
| app.kubernetes.io/part-of: wso2-agentic-engineer | ||
| annotations: | ||
| "helm.sh/hook": pre-install,pre-upgrade | ||
| "helm.sh/hook-weight": "-10" | ||
| "helm.sh/hook-delete-policy": before-hook-creation | ||
| roleRef: | ||
| apiGroup: rbac.authorization.k8s.io | ||
| kind: ClusterRole | ||
| name: wso2-ae-key-generator | ||
| subjects: | ||
| - kind: ServiceAccount | ||
| name: wso2-ae-key-generator | ||
| namespace: {{ .Release.Namespace }} | ||
| --- | ||
| # Post-install/upgrade Job: generate BFF task signing key if it doesn't exist | ||
| # Runs before main Deployments so ConfigMap is ready for them to mount. | ||
| # Idempotent — subsequent runs reuse the existing ConfigMap, avoiding JWT invalidation. | ||
| apiVersion: batch/v1 | ||
| kind: Job | ||
| metadata: | ||
| name: wso2-ae-generate-task-signing-key | ||
| namespace: {{ .Release.Namespace }} | ||
| labels: | ||
| app.kubernetes.io/managed-by: {{ .Release.Service }} | ||
| app.kubernetes.io/part-of: wso2-agentic-engineer | ||
| app.kubernetes.io/component: key-generator | ||
| annotations: | ||
| "helm.sh/hook": pre-install,pre-upgrade | ||
| "helm.sh/hook-weight": "-9" | ||
| "helm.sh/hook-delete-policy": before-hook-creation | ||
| spec: | ||
| backoffLimit: 3 | ||
| ttlSecondsAfterFinished: 300 | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app.kubernetes.io/part-of: wso2-agentic-engineer | ||
| app.kubernetes.io/component: key-generator | ||
| spec: | ||
| restartPolicy: Never | ||
| serviceAccountName: wso2-ae-key-generator | ||
| containers: | ||
| - name: keygen | ||
| image: alpine:latest | ||
| imagePullPolicy: IfNotPresent | ||
| command: | ||
| - sh | ||
| - -c | ||
| - | | ||
| set -e | ||
|
|
||
| # Install kubectl if not available (alpine doesn't include it) | ||
| if ! command -v kubectl &>/dev/null; then | ||
| echo "Installing kubectl..." | ||
| apk add --no-cache kubectl | ||
| fi | ||
|
|
||
| CONFIGMAP_NAME="asdlc-api-task-signing-key" | ||
| KEY_FILE="/tmp/task-signing.pem" | ||
|
|
||
| echo "Checking if task signing key ConfigMap already exists..." | ||
| if kubectl get configmap "$CONFIGMAP_NAME" -n {{ .Release.Namespace }} >/dev/null 2>&1; then | ||
| echo "✅ Task signing key ConfigMap already exists (reusing existing key)" | ||
| echo " This preserves JWT verification across helm upgrades and pod restarts" | ||
| exit 0 | ||
| fi | ||
|
|
||
| echo "🔐 Generating new RSA 2048 task signing key..." | ||
| if ! command -v openssl &>/dev/null; then | ||
| apk add --no-cache openssl | ||
| fi | ||
| openssl genpkey -algorithm RSA -out "$KEY_FILE" -pkeyopt rsa_keygen_bits:2048 | ||
|
|
||
| if [ ! -f "$KEY_FILE" ]; then | ||
| echo "❌ Failed to generate signing key" | ||
| exit 1 | ||
| fi | ||
|
|
||
| echo "📦 Storing in ConfigMap..." | ||
| kubectl create configmap "$CONFIGMAP_NAME" \ | ||
| --from-file=task-signing.pem="$KEY_FILE" \ | ||
| -n {{ .Release.Namespace }} \ | ||
| --dry-run=client -o yaml | kubectl apply -f - | ||
|
|
||
| echo "✅ Task signing key generated and stored in ConfigMap" | ||
| echo " Key will be reused on future helm upgrades (idempotent)" | ||
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