Set up Quay.io image publishing pipeline

[ricardozanini]

Set up automated container image publishing to quay.io/kubesmarts using GitHub Actions. This pipeline will build and publish all logic-platform images (data-index variants and ingestion services) when version tags are pushed to the repository.

Image Build Strategy: Dockerfiles as the single source of truth. This replaces the current Jib-based approach used in E2E tests with explicit Dockerfiles for consistency between development, CI, and production deployments.

Acceptance Criteria

• GitHub Actions workflow file created (.github/workflows/publish-images.yml)
• Workflow triggers on tag push matching pattern v* (e.g., v1.0.0)
• Workflow authenticates to quay.io using repository secrets (QUAY_USERNAME, QUAY_TOKEN)
• Multi-architecture builds configured (amd64, arm64)
• Images tagged with multiple tags:
  • latest - always points to most recent release
  • Full version - e.g., 1.0.0
  • Major.minor - e.g., 1.0
• Workflow includes basic validation (pull published image and verify)
• Documentation added to README for triggering releases

Technical Details

GitHub Secrets Required:

• QUAY_USERNAME - Quay.io username/robot account
• QUAY_TOKEN - Quay.io access token

Workflow Pattern:

on:
  push:
    tags:
      - 'v*'

Build Strategy:

• Use docker/build-push-action@v5 for multi-platform builds (handles Dockerfiles natively)
• Use docker/metadata-action@v5 for tag management
• Build context: module directory containing Dockerfile
• Build args: Pass Quarkus profile where needed

Workflow Pattern (per image):

- name: Build and push PostgreSQL variant
  uses: docker/build-push-action@v5
  with:
    context: ./data-index/data-index-service/data-index-service-postgresql
    file: ./data-index/data-index-service/data-index-service-postgresql/src/main/docker/Dockerfile.jvm
    platforms: linux/amd64,linux/arm64
    push: true
    tags: ${{ steps.meta.outputs.tags }}
    labels: ${{ steps.meta.outputs.labels }}

Reference Implementation:

• See quarkus-flow repository workflows: https://github.com/quarkiverse/quarkus-flow/.github/workflows/

Dependencies

None - this is the foundation for all image publishing