fix: github action docker buildx

.github/workflows/deploy.yml

@@ -32,13 +32,17 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: web image build and push
-        env:
-          NAME: ${{ secrets.DOCKER_USERNAME }}
-          REPO: ${{ secrets.DOCKER_REPO }}
-        run: |
-          docker build -t $NAME/$REPO .
-          docker push $NAME/$REPO
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: web image build and push (multi-platform)
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ secrets.DOCKER_USERNAME }}/${{ secrets.DOCKER_REPO }}:latest
+          platforms: linux/amd64,linux/arm64
 
       - name: executing remote ssh commands using password
         uses: appleboy/ssh-action@master