add arm64 docker support

Author: pastudan

.github/workflows/docker-build.yml

@@ -22,6 +22,12 @@ jobs:
       - name: Checkout
         uses: actions/[email protected]
 
+      - name: Set up QEMU
+        id: qemu
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: arm64
+
       - name: Set up Buildx
         id: buildx
         uses: docker/[email protected]
@@ -66,7 +72,7 @@ jobs:
         with:
           context: .
           file: ./Dockerfile
-          platforms: linux/amd64
+          platforms: linux/amd64,linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           cache-from: type=local,src=/tmp/.buildx-cache
@@ -78,4 +84,4 @@ jobs:
         name: Move cache
         run: |
           rm -rf /tmp/.buildx-cache
-          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache