Update Docker workflow to add Dockerhub

Author: mrusse

.github/workflows/docker.yaml

@@ -17,21 +17,31 @@ jobs:
     permissions:
       contents: read
       packages: write
+
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-
-      - name: Docker meta
+        
+      - name: Docker meta (GHCR only)
         id: meta
         uses: docker/metadata-action@v5
         with:
@@ -41,11 +51,27 @@ jobs:
             type=ref,event=pr
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
-
+            
+      - name: Determine Docker Hub Tag
+        id: hubtag
+        run: |
+          if [[ "${GITHUB_REF_NAME}" == "main" ]]; then
+            echo "tag=latest" >> $GITHUB_OUTPUT
+          else
+            echo "tag=${GITHUB_REF_NAME}" >> $GITHUB_OUTPUT
+          fi
+          echo "dockerhub_image=${{ secrets.DOCKERHUB_USERNAME }}/soularr" >> $GITHUB_OUTPUT
+          
       - name: Build and push
         uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64,linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
+          tags: |
+            # GHCR tags from metadata-action
+            ${{ steps.meta.outputs.tags }}
+
+            # Docker Hub tag (branch or latest)
+            ${{ steps.hubtag.outputs.dockerhub_image }}:${{ steps.hubtag.outputs.tag }}
+
           labels: ${{ steps.meta.outputs.labels }}