Run aix test CI job on changes

[pgimalac]

What does this PR do?

Update the AIX unit test job to run automatically when changing it.

Motivation

Makes it simpler to validate changes to the job itself, and avoids breaking it by accident.

Describe how you validated your changes

CI

Additional Notes

[github-actions]

AI review by Codex (OpenAI) - workflow run

Patch is correct. The new rule automatically runs the AIX unit-test job when its job definition or remote execution template changes, while preserving existing scheduled and manual behavior.

[dd-octo-sts]

Gitlab CI Configuration Changes

Modified Jobs

tests_aix-ppc64

  tests_aix-ppc64:
    allow_failure: true
    before_script:
    - export AIX_HOST="$($CI_PROJECT_DIR/tools/ci/fetch_secret.sh $SITEOX_AIX_CI_RUNNER
      hostname)"
    - export AIX_PORT="$($CI_PROJECT_DIR/tools/ci/fetch_secret.sh $SITEOX_AIX_CI_RUNNER
      port)"
    - export AIX_USER="$($CI_PROJECT_DIR/tools/ci/fetch_secret.sh $SITEOX_AIX_CI_RUNNER
      user)"
    - mkdir -p ~/.ssh && chmod 700 ~/.ssh
    - $CI_PROJECT_DIR/tools/ci/fetch_secret.sh $SITEOX_AIX_CI_RUNNER key > ~/.ssh/aix_ci_key
      || exit $?
    - chmod 600 ~/.ssh/aix_ci_key
    - ssh-keyscan -p $AIX_PORT $AIX_HOST >> ~/.ssh/known_hosts
    - eval $(ssh-agent -s)
    - ssh-add ~/.ssh/aix_ci_key
    - 'echo "=== AIX: cloning agent source at $CI_COMMIT_SHA ==="'
    - "ssh -T -p $AIX_PORT $AIX_USER@$AIX_HOST bash -s <<EOF\nset -eu\nexport PATH=/opt/freeware/bin:/usr/bin:\\\
      $PATH\nif [ ! -d \"$AIX_AGENT_SRC/.git\" ]; then\n  git clone --progress \"$AIX_GIT_REMOTE\"\
      \ \"$AIX_AGENT_SRC\"\nfi\ncd \"$AIX_AGENT_SRC\"\ngit clean -df\ngit reset --hard\n\
      git fetch --progress origin\n# The commit under test may not be reachable from\
      \ origin yet (e.g. a\n# brand-new branch push); fetch the branch ref as a fallback.\n\
      git fetch --progress origin \"$CI_COMMIT_REF_NAME\" || true\ngit checkout \"$CI_COMMIT_SHA\"\
      \nEOF\n"
    - 'echo "=== AIX: provisioning host (setup-host.sh) ==="'
    - ssh -tt -p $AIX_PORT $AIX_USER@$AIX_HOST "sh $AIX_AGENT_SRC/packaging/aix/setup-host.sh"
    image: registry.ddbuild.io/ci/datadog-agent-buildimages/linux$CI_IMAGE_LINUX_SUFFIX:$CI_IMAGE_LINUX
    needs: []
    resource_group: aix_ci_host
    rules:
    - if: $CI_COMMIT_BRANCH =~ /^mq-working-branch-/
      when: never
    - if: $DDR_WORKFLOW_ID != null && $CI_COMMIT_BRANCH == "main"
      when: always
+   - changes:
+       compare_to: $COMPARE_TO_BRANCH
+       paths:
+       - .gitlab/aix/aix_remote.yml
+       - .gitlab/aix/test/aix_unit_tests.yml
    - variables:
        EXTRA_TEST_FLAGS: --only-modified-packages
      when: manual
    script:
    - 'echo "=== AIX: running unit tests ==="'
    - "ssh -tt -p $AIX_PORT $AIX_USER@$AIX_HOST \"bash -c '\n  set -eu\n  cd $AIX_AGENT_SRC\n\
      \  . ./packaging/aix/lib/env.sh\n  python3.12 -m invoke -e test $EXTRA_TEST_FLAGS\
      \ --build-exclude=python --build-cpus=1\n'\"\n"
    stage: source_test
    tags:
    - arch:amd64
    - specific:true
    timeout: 2h
    variables:
      AIX_AGENT_SRC: /opt/dd-build/datadog-agent
      AIX_GIT_REMOTE: https://github.com/DataDog/datadog-agent.git
      EXTRA_TEST_FLAGS: ''
      GIT_DEPTH: 1

Changes Summary

Removed	Modified	Added	Renamed
0	1	0	0

ℹ️ Diff available in the job log.

[datadog-prod-us1-6]

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 60.62% (+5.35%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 621fecb | Docs | View more details | Give us feedback!}

[dd-octo-sts]

Files inventory check summary

File checks results against ancestor cc466279:

Results for datadog-agent_7.85.0~devel.git.16.621fecb.pipeline.135537206-1_amd64.deb:

No change detected

Results for datadog-iot-agent_7.85.0~devel.git.16.621fecb.pipeline.135537206-1_amd64.deb:

No change detected