test.yml

name: test
on:
  push:
    branches: ["**"]
  pull_request:
  workflow_dispatch:
    inputs: # null for another event
      skip:
        type: boolean
        default: false
permissions: {}

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
  # tool versions
  # renovate: datasource=github-releases depName=docker/buildx
  BUILDX_VERSION: v0.19.2
  # renovate: datasource=github-releases depName=moby/buildkit
  BUILDKIT_VERSION: v0.18.1

jobs:
  test:
    permissions:
      packages: write
    runs-on: ubuntu-latest
    steps:
      - run: |
          echo 'FROM scratch' > Dockerfile

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349 # v3.7.1
        with:
          version: ${{ env.BUILDX_VERSION }}
          driver-opts: image=moby/buildkit:${{ env.BUILDKIT_VERSION }}

      - name: Log in to the Container registry
        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: test-meta
        name: Extract metadata (tags, labels) for Docker
        uses: docker/metadata-action@369eb591f429131d6889c46b94e711f089e6ca96 # v5.6.1
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=semver,pattern={{version}},suffix=-test
            type=semver,pattern={{major}}.{{minor}},suffix=-test
            type=semver,pattern={{major}},suffix=-test
            type=edge,suffix=-test
            type=ref,event=branch,suffix=-test

      - id: build
        name: Build and push Docker image
        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6.10.0
        with:
          file: 'test.Dockerfile'
          push: ${{ github.event_name != 'pull_request' && github.ref_name == github.event.repository.default_branch }}
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.test-meta.outputs.tags }}
          labels: ${{ steps.test-meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
      - if: ${{ github.event_name != 'pull_request' && github.ref_name == github.event.repository.default_branch }}
        name: Display image digest
        run: |
          name=$(cut --delimiter=',' --fields=1 <<< "$NAME")

          echo '```' >> $GITHUB_STEP_SUMMARY
          echo "$name@$DIGEST" >> $GITHUB_STEP_SUMMARY
          echo '```' >> $GITHUB_STEP_SUMMARY
        env:
          NAME: ${{ fromJson(steps.build.outputs.metadata)['image.name'] }}
          DIGEST: ${{ fromJson(steps.build.outputs.metadata)['containerimage.digest'] }}