build-push-ghcr.yml

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

# GitHub recommends pinning actions to a commit SHA.
# To get a newer version, you will need to update the SHA.
# You can also reference a tag or branch, but the action may change without warning.

name: Create and publish a Docker image

on:
  push:
    branches: ["*"]

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
        
        # Setup QEMU: https://github.com/docker/setup-qemu-action
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
        with:
          platforms: 'arm64'

      # Workaround: https://github.com/docker/build-push-action/issues/461
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v3
        with:
          install: true

      - name: Cache Docker layers
        uses: actions/cache@v4
        with:
          path: |
            /tmp/.buildx-cache
            pnpm-store
          # Key is named differently to avoid collision
          key: ${{ runner.os }}-multi-buildx-${{ hashFiles('pnpm-lock.yaml') }}-${{ hashFiles('Dockerfile') }}
          restore-keys: |
            ${{ runner.os }}-multi-buildx
      
      - name: inject cache into docker
        uses: reproducible-containers/buildkit-cache-dance@v3.1.0
        with:
          cache-map: |
            {
              "pnpm-store": "/pnpm/store"
            }
          skip-extraction: ${{ steps.cache.outputs.cache-hit }}

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        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
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # set latest tag for default branch
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=branch
            type=sha

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64,linux/arm64
          cache-from: type=local,src=/tmp/.buildx-cache
          # Note the mode=max here
          # More: https://github.com/moby/buildkit#--export-cache-options
          # And: https://github.com/docker/buildx#--cache-tonametypetypekeyvalue
          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache-new