build-containers.yaml

name: Build & Deploy Docker Containers
on:
  # Build on push to any branch
  push: []

jobs:
  deploy-images:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      # Just build primary Dockerfile, tag, arm and amd64 for now
      matrix:
        dockerfile: [[Dockerfile, linux/amd64, '']]

    name: Build ${{ matrix.dockerfile[0] }}
    steps:
    - name: Checkout
      uses: actions/checkout@v3

    - name: Set Container Tag
      run: |
        branch=$(echo ${GITHUB_REF##*/})
        printf "Branch is ${branch}\n"
        tagged="quay.io/singularity/docker2singularity:${branch}${{ matrix.dockerfile[2] }}"
        if [[ "${branch}" == "master" ]]; then
            container="quay.io/singularity/docker2singularity:latest${{ matrix.dockerfile[2] }}"
        else
            container=${tagged}
        fi
        echo "container=${container}" >> $GITHUB_ENV
        echo "branch=${branch}" >> $GITHUB_ENV
        echo "tagged=${tagged}" >> $GITHUB_ENV

    - name: Log in to Quay Container Registry
      if: github.event_name == 'push'
      uses: docker/login-action@v2
      with:
        registry: quay.io
        username: ${{ secrets.DOCKER_USER }}
        password: ${{ secrets.DOCKER_PASS }}

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v2

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

    - name: Inspect Container Names
      run: |
        printf "Tagged: ${tagged}\n"        
        printf "Container: ${container}\n"  

    - name: Build
      uses: docker/build-push-action@v3
      if: github.event_name != 'push'
      with:
        file: ${{matrix.dockerfile[0]}}
        platforms: ${{ matrix.dockerfile[1] }}
        push: false
        tags: |
          ${{ env.container }}
          ${{ env.tagged }}

    - name: Build & Deploy
      uses: docker/build-push-action@v3
      if: github.event_name == 'push'
      with:
        file: ${{matrix.dockerfile[0]}}
        platforms: ${{ matrix.dockerfile[1] }}
        push: true
        tags: |
          ${{ env.container }}
          ${{ env.tagged }}