build.yml

name: Publish image
on:
  release:
    types: [released]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Login to GitHub Container Registry
      uses: docker/login-action@v2
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Read package version
      id: pkg
      run: |
        VERSION=$(node -p "require('./package.json').version")
        echo "version=$VERSION" >> "$GITHUB_OUTPUT"

    - name: Build and push ghcr.io
      id: build-and-push
      uses: docker/build-push-action@v3.1.0
      with:
        context: .
        push: true
        tags: |
          ghcr.io/${{ github.repository }}:${{ steps.pkg.outputs.version }}
          ghcr.io/${{ github.repository }}:latest