build.yaml

name: Container Images
on:
  push:
    branches:
      - main
  pull_request:
  release:
    types: [published]

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

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write

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

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
            type=ref,event=tag
            type=raw,value=stable,enable=${{ startsWith(github.ref, 'refs/tags/') }}
            type=ref,event=pr

      - name: Show tags
        run: |
          git tag
          echo ${{ steps.meta.outputs.tags }}

      - name: Extract version from tag
        if: startsWith(github.ref, 'refs/tags/')
        run: echo "VERSION=${GITHUB_REF##*/}" >> $GITHUB_ENV

      - name: Log into GitHub Container Registry
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push slim
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile.slim
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}-slim
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            BUILD_DATE=${{ github.event.repository.updated_at }}
            VCS_REF=${{ github.sha }}
            VERSION=${{ env.VERSION }}

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            SLIM_IMAGE=${{ steps.meta.outputs.tags }}-slim