ci(docker): build for arm

.github/workflows/docker.yml

@@ -1,8 +1,9 @@
+---
 name: docker
 
 on:
   schedule:
-    - cron: '0 3 5 * *' # every friday at 3am
+    - cron: 0 3 5 * *    # every friday at 3am
   push:
     branches:
       - '**'
@@ -10,21 +11,18 @@ on:
       - '*.*.*'
   pull_request:
     branches:
-      - 'master'
+      - master
 
 jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
-      -
-        name: Checkout
+      - name: Checkout
         uses: actions/checkout@v2
-      -
-        name: Set up dynamic build ARGs
+      - name: Set up dynamic build ARGs
         id: getargs
         run: echo "::set-output name=version::$(cat ./stable/VERSION)"
-      -
-        name: Docker meta
+      - name: Docker meta
         id: meta
         uses: docker/metadata-action@v3
         with:
@@ -41,18 +39,16 @@ jobs:
             type=semver,pattern={{major}}.{{minor}}
             type=semver,pattern={{major}}
             type=sha
-      -
-        name: Login to DockerHub
+      - name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v1 
+        uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      -
-        name: Build and push
+      - name: Build and push
         uses: docker/build-push-action@v2
         with:
-          platforms: linux/amd64
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}