docker-publish.yml

name: Docker

on:
  release:
    types: [published]

env:
  REGISTRY_GITHUB: ghcr.io
  REGISTRY_DOCKER: docker.io
  IMAGE_NAME_GITHUB: ${{ github.repository }}
  IMAGE_NAME_DOCKER: ${{ secrets.DOCKERHUB_USERNAME }}/${{ secrets.DOCKERHUB_APPNAME }}

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

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to GitHub
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY_GITHUB }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY_DOCKER }}
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY_DOCKER }}
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            # Docker Hub Image
            ${{ env.REGISTRY_GITHUB }}/${{ env.IMAGE_NAME_GITHUB }}
            # GitHub Image
            ${{ env.REGISTRY_DOCKER }}/${{ env.IMAGE_NAME_DOCKER }}
          tags: |
            type=semver,pattern={{raw}}
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=branch
            type=ref,event=tag
            type=ref,event=pr
            type=sha,enable=false

      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}