dashy/.github/workflows/docker-release.yml

# Test and build the Docker container after a release
# Then push it to GH container registry if all checks pass
name: Build & Publish Docker Image
on:
  release:
    types: [published]
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      # Get the code
      - name: Checkout repository 🛎️
        uses: actions/checkout@v2
      # Log into ghcr.io
      - name: Log in to the Container registry 🔑
        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      # Get release version, for Docker tag
      - name: Extract metadata (tags, labels) for Docker 🗂️
        id: meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
      # Build the container, and push if successful
      - name: Build and push Docker image ⚒️
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}