Push to docker hub

.github/workflows/docker-publish.yml

@@ -9,8 +9,6 @@ on:
     tags: [ "**" ]
 
 env:
-  # Use docker.io for Docker Hub if empty
-  REGISTRY: ghcr.io
   # github.repository as <account>/<repo>
   IMAGE_NAME: ${{ github.repository }}
 
@@ -68,13 +66,19 @@ jobs:
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
-      - name: Log into registry ${{ env.REGISTRY }}
+      - name: Login to GitHub Container Registry
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v3
         with:
-          registry: ${{ env.REGISTRY }}
+          registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Login to Docker Hub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ vars.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       # Extract metadata (tags, labels) for Docker
       # https://github.com/docker/metadata-action
@@ -84,7 +88,9 @@ jobs:
         env:
           DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          images: |
+            ghcr.io/${{ env.IMAGE_NAME }}
+            ${{ env.IMAGE_NAME }}
 
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action