docker-image-ghcr.yml

name: Docker Image CI

on:
  push:
    tags:
      - '*'

env:
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  IMAGE_NAME: ${{ github.repository }}
  # Comma separated list of platforms to build the image for.
  PLATFORMS: linux/amd64,linux/arm64

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
    - name: checkout
      uses: actions/checkout@v3
    - 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 Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
    - name: Extract image metadata
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
    - name: Build and push
      uses: docker/build-push-action@v6
      with:
        context: .
        platforms: ${{ env.PLATFORMS }}
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}