name: Docker

permissions:
  contents: read

on:
  push:
    branches:
    - main
    - master

    # Publish `v1.2.3` tags as releases.
    tags:
    - v*
  pull_request:

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

jobs:
  push:
    permissions:
      packages: write
      contents: read
    runs-on: ubuntu-latest

    steps:
      - name: Check out code into the Go module directory
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      # This action can be useful if you want to add emulation
      # support with QEMU to be able to build against more platforms.
      - name: Set up QEMU
        uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0

      # This action will create and boot a builder using
      # by default the docker-container builder driver.
      # Recommended for build multi-platform images, export cache, etc.
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb # v3.3.0

      - name: Log into ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446 # v3.2.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}