multi arch build

.github/workflows/pack.yml

@@ -0,0 +1,17 @@
+name: buildx
+
+on:
+  push:
+    branches: master
+
+jobs:
+  buildx:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          buildx-version: latest
+          qemu-version: latest
+      - run: echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
+      - run: make dockerx

Makefile

@@ -0,0 +1,2 @@
+dockerx:
+	docker buildx build --platform linux/amd64,linux/arm64 --push -t morlay/now-proxy:latest .