name: Docker CI
on:
  push:
    tags:
      - "v*.*.*"
    branches: [ unstable ]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Set up Docker Buildx
      id: buildx
      uses: docker/setup-buildx-action@v3

    - name: Docker meta
      id: meta
      uses: docker/metadata-action@v5
      with:
        # list of Docker images to use as base name for tags
        images: ${{ github.repository }}
        # generate Docker tags based on the following events/attributes
        tags: |
          type=ref,event=branch
          type=ref,event=pr
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}
          type=semver,pattern={{major}}

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v3

    - name: Log in to the Container registry
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_TOKEN }}
        
    - name: Build Docker image
      uses: docker/build-push-action@v5
      with:
        context: .
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        platforms: linux/amd64,linux/arm64,linux/arm/v7
        cache-from: type=gha
        cache-to: type=gha,mode=max
