Create docker-image.yml

.github/workflows/docker-image.yml

@@ -0,0 +1,21 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  buildx:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}