[ntk148v]

Summary

Add e2e tests for the all-in-one deployment on GitHub Actions. Update the version bumper to test, close and clean up bump PRs.

Changes

• .github/workflows/e2e.yml (new)
  • Lint job: syntax check and ansible-lint --profile min.
  • E2E job on ubuntu-22.04 and ubuntu-24.04: precheck → deploy → verify → redeploy (no container recreated) → destroy → verify removal.
• tests/e2e/ (new)
  • config.yml: deploys Prometheus, Alertmanager, node_exporter, cAdvisor and Grafana.
  • verify.yml: checks endpoints, container state, Prometheus targets and cleanup after destroy.
• .github/workflows/version_bumper.yml
  • Starts e2e on each bump branch. PRs created with GITHUB_TOKEN do not start pull_request workflows.
  • Closes older bump PRs for the same role. Example: Grafana 12.5.1 closes 12.5.0.
  • Deletes the autoupdate/* branch when a person merges or closes its PR.

Notes

• The redeploy check compares container IDs and start times, not changed=0. Some shell tasks always report changed.
• The redeploy check may fail on Grafana. Its handler recreates the container without the memory and CPU limits. This is a bug in the role, not in the test.