name: Build/Update Docker Image

on:
  release:
      types: # This configuration does not affect the page_build event above
        - published

  #pull_request:
  #  branches: [ main ]
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:

  build-and-push-image:

    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
    # Checkout repository
    - name: Checkout repository
      uses: actions/checkout@v2
    
    # Login to Docker registry
    - name: Login to GitHub Container Registry
      uses: docker/login-action@v1
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
    
    
    # Extract metadata for Docker
    - name: Extract metadata (tags, labels) for Docker
      id: meta
      uses: docker/metadata-action@v3
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
    
    
    # https://github.com/docker/setup-qemu-action
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v1
    
    
    # Setup buildx
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v1
      
      
    # Available platforms  
    - name: Available platforms
      run: echo ${{ steps.buildx.outputs.platforms }}
    
    
    # Get Tag version
    - name: Get Tag Version
      run: |
        echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
        echo $RELEASE_VERSION
        echo ${{ env.RELEASE_VERSION }}
    
    
    # Build and push Docker image
    - name: Build and push Docker image
      uses: docker/build-push-action@v2
      with:
        context: .
        platforms: linux/amd64,linux/arm64,linux/arm/v7
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}