Merge pull request #541 from chrismeller/master

.github/workflows/docker.yml

@@ -0,0 +1,61 @@
+name: Docker Buildx and Push
+
+on:
+  workflow_dispatch:
+  push:
+
+jobs:
+  buildx:
+    runs-on: ubuntu-latest
+    steps:
+      -
+         name: Docker Login
+         uses: docker/login-action@v1
+         with:
+           username: ${{ secrets.DockerUsername }}
+           password: ${{ secrets.DockerPassword }}
+      -
+        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
+        with:
+          version: latest
+          install: true
+      -
+        name: Builder instance name
+        run: echo ${{ steps.buildx.outputs.name }}
+      -
+        name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+      -
+        name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+      - 
+        name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          context: ./
+          file: ./Dockerfile
+          builder: ${{ steps.buildx.outputs.name }}
+          push: true
+          tags: |
+            ${{ secrets.DockerUsername }}/${{ secrets.DockerRepository }}:latest
+            ${{ secrets.DockerUsername }}/${{ secrets.DockerRepository }}:${{ github.sha }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
+          platforms: linux/arm64,linux/arm/v7
+      -
+        name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}