name: docker

on:
  pull_request:
    branches:
      - master
    paths:
      - .github/workflows/docker.yaml
      - pkg/**
      - go.*
      - Dockerfile
  push:
    branches:
      - master
    paths:
      - .github/workflows/docker.yaml
      - pkg/**
      - go.*
      - Dockerfile
    tags:
      - v*

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    permissions:
      contents: read
      packages: write
    outputs:
      image-uri: ghcr.io/${{ github.repository }}@${{ steps.build.outputs.digest }}
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
      - uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/metadata-action@369eb591f429131d6889c46b94e711f089e6ca96 # v5.6.1
        id: metadata
        with:
          images: ghcr.io/${{ github.repository }}
      - uses: int128/docker-build-cache-config-action@622932dfa73db7d3a65e40d5fcc094f2101e659a # v1.37.0
        id: cache
        with:
          image: ghcr.io/${{ github.repository }}/cache
      - uses: docker/setup-qemu-action@53851d14592bedcffcf25ea515637cff71ef929a # v3.3.0
      - uses: docker/setup-buildx-action@6524bf65af31da8d45b59e8c27de4bd072b392f5 # v3.8.0
      - uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d # v6.12.0
        id: build
        with:
          push: ${{ github.event_name == 'push' }}
          tags: ${{ steps.metadata.outputs.tags }}
          labels: ${{ steps.metadata.outputs.labels }}
          cache-from: ${{ steps.cache.outputs.cache-from }}
          cache-to: ${{ steps.cache.outputs.cache-to }}
          platforms: |
            linux/amd64
            linux/arm64
            linux/ppc64le

  test:
    if: github.event_name == 'push'
    needs: build
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - run: docker run --rm "$IMAGE_URI" --help
        env:
          IMAGE_URI: ${{ needs.build.outputs.image-uri }}