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@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
      - uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
        id: metadata
        with:
          images: ghcr.io/${{ github.repository }}
      - uses: int128/docker-build-cache-config-action@fb186e80c08f14a2e56ed9105d4594562bff013f # v1.40.0
        id: cache
        with:
          image: ghcr.io/${{ github.repository }}/cache
      - uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3.7.0
      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
      - uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
        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@f38781ddbaa410e9f8fa55a291dce7480798f1a0 # v1.2.0
        id: build-metadata
        with:
          metadata: ${{ steps.build.outputs.metadata }}

  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 }}