github action img add arm

.github/workflows/build_dockerhub_img.yml

@@ -17,6 +17,10 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v3
 
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+      with:
+        platforms: linux/amd64,linux/arm64
 
     - name: Login to DockerHub
       uses: docker/login-action@v1
@@ -42,6 +46,8 @@ jobs:
       uses: docker/build-push-action@v2
       with:
         context: .
+        file: ./Dockerfile
+        platforms: linux/amd64,linux/arm64
         push: true
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}