template-buildx/.forgejo/workflows/build-on-commit.yml

name: Build Docker Image on Commit

on:
  push:
    branches:
      - main
    tags:
      - '!' # Exclude tags

jobs:
  build-and-publish:
    runs-on: docker-builder

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set REPO_VARS
        id: repo-url
        run: |
          echo "REPO_HOST=$(echo "${{ github.server_url }}" | sed 's~http[s]*://~~g')" >> $GITHUB_ENV
          echo "REPO_PATH=${{ github.repository }}" >> $GITHUB_ENV          

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          driver: docker-container
          driver-opts: |
            network=host            
          endpoint: tcp://docker:2376
          config-inline: |
            {
              "auths": {},
              "credsStore": "docker-credential-helpers"
            }            

      - name: Login to OCI registry
        run: |
          echo "${{ secrets.OCI_TOKEN }}" | docker login $REPO_HOST -u "${{ secrets.OCI_USER }}" --password-stdin          

      - name: Build and push multi-arch Docker images
        run: |
          docker buildx build \
            --platform linux/amd64,linux/arm64 \
            --tag $REPO_HOST/$REPO_PATH:${{ github.sha }} \
            --tag $REPO_HOST/$REPO_PATH:nightly \
            --push \
            .          

      - name: Cleanup
        run: |
          docker buildx prune -f
          docker logout $REPO_HOST