Add example for ghcr.io

.github/workflows/ci.yml

@@ -158,3 +158,34 @@ jobs:
           REGISTRY_PREFIX: ${{ secrets.DOCKERHUB_USERNAME }}/
           BUILD_REVISION: ${{ steps.vars.outputs.sha_short }}
         run: docker buildx bake --push
+
+  ## Example of publish using GitHub Container Registry instead
+  # publish:
+  #   if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+  #   needs: [ test-script ]
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #     - uses: actions/checkout@v2
+  #
+  #     - name: Set up QEMU
+  #       uses: docker/setup-qemu-action@v1
+  #
+  #     - name: Set up Docker Buildx
+  #       uses: docker/setup-buildx-action@v1
+  #
+  #     - name: Login to GitHub Container Registry
+  #       uses: docker/login-action@v1
+  #       with:
+  #         registry: ghcr.io
+  #         username: ${{ github.actor }}
+  #         password: ${{ secrets.GITHUB_TOKEN }}
+  #
+  #     - name: Build images
+  #       env:
+  #         REGISTRY_PREFIX: ghcr.io/${{ github.repository_owner }}/
+  #       run: docker buildx bake --pull
+  #
+  #     - name: Push images
+  #       env:
+  #         REGISTRY_PREFIX: ghcr.io/${{ github.repository_owner }}/
+  #       run: docker buildx bake --push