release.yml

name: Publish Docker image
on:
  release:
    types: [published]
jobs:
  push_to_registry:
    name: Push Docker image to GitHub Packages
    runs-on: ubuntu-latest
    steps:
      - name: Set Env
        run: |
          echo "BUILD_TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
          echo "BUILD_SHA=${GITHUB_SHA:0:7}" >> $GITHUB_ENV
      - name: Docker Login
        uses: docker/login-action@v2.1.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build and Push to GitHub Packages
        uses: docker/build-push-action@v3
        with:
          tags: |
            ghcr.io/${{ github.repository }}:${{ env.BUILD_TAG }}
            ghcr.io/${{ github.repository }}:${{ env.BUILD_SHA }}
          push: true