use buildx to create both amd64 and arm64 images

.github/workflows/aws-ecs-deploy-backend.yml

@@ -20,6 +20,7 @@ env:
   AWS_REGION: us-east-1
   DOCKERFILE: ./backend/Dockerfile.cloud
   DOCKER_PATH: ./
+  PLATFORMS: linux/amd64,linux/arm64
 jobs:
   setup_env:
     name: Set-up environment
@@ -66,21 +67,22 @@ jobs:
         aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
         aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
         aws-region: ${{ env.AWS_REGION }}
-    - name: Login to Amazon ECR
-      id: login-ecr
-      uses: aws-actions/amazon-ecr-login@v2
-    - name: Build & Push Image to ECR
-      uses: mikeyavorsky/aws-ecr-action@master
+    - name: Login to ECR
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    - name: Build and push
+      uses: docker/build-push-action@v5
       with:
-        access_key_id: ${{ secrets.AWS_ACCESS_KEY_ID }}
-        secret_access_key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-        account_id: ${{ secrets.AWS_ACCOUNT_ID }}
-        repo: ${{ needs.setup_env.outputs.AWS_APPENV }}
-        region: ${{ env.AWS_REGION }}
-        tags: latest,${{ needs.setup_env.outputs.IMAGE_TAG }}
-        dockerfile: ${{ env.DOCKERFILE }}
-        path: ${{ env.DOCKER_PATH }}
-        extra_build_args: "--platform=linux/arm64"
+        context: ${{ env.DOCKER_PATH }}
+        file: ${{ env.DOCKERFILE }}
+        platforms: ${{ env.PLATFORMS }}
+        push: true
+        tags: ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com/${{ needs.setup_env.outputs.AWS_APPENV }}:${{ needs.setup_env.outputs.IMAGE_TAG }}, ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com/${{ needs.setup_env.outputs.AWS_APPENV }}:latest
   deploy:
     name: Deploy to AWS ECS
     runs-on: ubuntu-latest