build.yml

name: Build Docker image

on:
  push:
    branches:
      - master
  pull_request:

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

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Setup QEMU
        uses: docker/setup-qemu-action@v2
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v2
        with:
          config: .github/buildkitd.toml
      - name: Retrieve author data
        run: |
          echo AUTHOR=$(curl -sSL ${{ github.event.repository.owner.url }} | jq -r '.name') >> $GITHUB_ENV
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          labels: |
            org.opencontainers.image.authors=${{ env.AUTHOR }}
      - name: Build Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64
          push: false
          load: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=${{ github.head_ref || github.ref_name }}
            COMMIT=${{ github.sha }}

      - name: Inspect Docker image
        run: docker image inspect ${{ steps.meta.outputs.tags }}