ghcr-publish.yml

name: Build and publish Docker image to ghcr
on: push
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Log in to the container registry
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          # For convenience, tag builds with the branch name and/or tag name where applicable.
          # For reproducibility, also tag builds with a unique build id.
          tags: |
            type=ref,priority=3,event=tag
            type=ref,priority=2,event=branch
            type=raw,priority=1,value=build-${{github.run_id}}-attempt-${{github.run_attempt}}

      - name: Build and push the image
        uses: docker/build-push-action@v3
        with:
          context: .
          platforms: linux/amd64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          push: true