publish-image.yaml

# https://docs.github.com/en/actions/publishing-packages/publishing-docker-images
name: Publish Docker image to ghcr.io

#on:
#  push:
#    tags:
#      - "*"
on: push

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Log in to the Container registry
        uses: docker/login-action@v3.0.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5.0.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - id: meta2
        run: echo -e "revision=$(git rev-parse HEAD)\nversion=$(git describe --tags)" >> "$GITHUB_OUTPUT"

      - name: Build and push Docker image
        uses: docker/build-push-action@v5.0.0
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            YOMER_REVISION="${{ steps.meta2.outputs.revision }}"
            YOMER_VERSION="${{ steps.meta2.outputs.version }}"