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: ${{ steps.build-metadata.outputs.image-uri }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
        id: metadata
        with:
          images: ghcr.io/${{ github.repository }}
      - uses: int128/docker-build-cache-config-action@4788c7e22b9923ca0e44bc7a29281b5beb545e5d # v1.49.0
        id: cache
        with:
          image: ghcr.io/${{ github.repository }}/cache
      - uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4.0.0
      - uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
      - uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
        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
      - uses: int128/docker-build-metadata-action@4749ab599533d511736c2053f34b23a7aaced8c7 # v2.1.0
        id: build-metadata
        with:
          tags: ${{ steps.metadata.outputs.tags }}
          digest: ${{ steps.build.outputs.digest }}

  test:
    if: needs.build.outputs.image-uri != ''
    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 }}