refactor: add support for multi-arch images

Author: GaikwadPratik

.github/workflows/docker-image.yml

@@ -11,15 +11,22 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
     - name: Login to GitHub Container Registry
       uses: docker/login-action@v1
       with:
         registry: ghcr.io
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
 
-    - name : Build and push DVWA image
+    - name : Build and push multi-arch DVWA image
       run: |
+
         IMAGE_ID=ghcr.io/${{ github.repository_owner }}/dvwa
         IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
         VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
@@ -29,8 +36,9 @@ jobs:
         echo IMAGE_ID=$IMAGE_ID
         echo VERSION=$VERSION
         echo COMMIT=$COMMIT
-        docker image build --tag dvwa .
-        docker image tag dvwa $IMAGE_ID:$VERSION
-        docker image tag dvwa $IMAGE_ID:$COMMIT
-        docker image push $IMAGE_ID:$VERSION
-        docker image push $IMAGE_ID:$COMMIT
+
+        docker buildx build --platform linux/amd64,linux/arm64 \
+              --tag $IMAGE_ID:$VERSION \
+              --tag $IMAGE_ID:$COMMIT \
+              --push .
+