build_images.yaml

name: docker_images
on:
  push:
  pull_request:
  schedule: [{cron: "14 14 * * TUE"}] # Every Tuesday at 14:14
jobs:
  setup:
    if: github.event_name != 'pull_request' || !contains('OWNER,MEMBER,COLLABORATOR', github.event.pull_request.author_association)
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
      with:
        ref: ${{ github.event.pull_request.head.sha || github.ref }} # fix SHA
    - name: List all images
      id: metadata
      run: |
        echo "images=$(
          find -name Dockerfile | sed -r 's#\./(.+)/Dockerfile#\1#g' | jq -Rsc 'split("\n")[:-1]'
        )" >> $GITHUB_OUTPUT
        echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
    outputs:
      images: ${{ steps.metadata.outputs.images }}
      sha: ${{ steps.metadata.outputs.sha_short }}
  build:
    needs: setup
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        image: ${{ fromJson(needs.setup.outputs.images) }}
    steps:
    - uses: actions/checkout@v3
    - uses: docker/setup-buildx-action@v2
    - name: Login to DockerHub # increase pull rate limit
      uses: docker/login-action@v2
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}
    - name: Login to Harbor
      uses: docker/login-action@v2
      with:
        registry: harbor.stfc.ac.uk
        username: ${{ secrets.HARBOR_USERNAME }}
        password: ${{ secrets.HARBOR_TOKEN }}
    - name: Build & push to prod
      if: ${{ github.ref == 'refs/heads/master' }}
      uses: docker/build-push-action@v3
      with:
        push: true
        context: "{{defaultContext}}:${{ matrix.image }}"
        tags: "harbor.stfc.ac.uk/stfc-cloud/${{ matrix.image }}:latest"
    - name: Build & push to staging
      if: ${{ github.ref != 'refs/heads/master' }}
      uses: docker/build-push-action@v3
      with:
        cache-from: type=gha
        cache-to: type=gha,mode=max
        push: true
        context: "{{defaultContext}}:${{ matrix.image }}"
        tags: "harbor.stfc.ac.uk/stfc-cloud-staging/${{ matrix.image }}:${{ needs.setup.outputs.sha }}"
    - name: Inform of tagged name
      if: ${{ github.ref != 'refs/heads/master' }}
      run: echo "::notice title=published::harbor.stfc.ac.uk/stfc-cloud-staging/${{ matrix.image }}:${{ needs.setup.outputs.sha }}"
  finished: # convenient single job name to apply branch protection to
    needs: build
    runs-on: ubuntu-latest
    steps: [{run: true}]