ci(bots): ARM64 support and layer caching (#26)

.github/workflows/bot.yml

@@ -9,14 +9,13 @@ on:
     paths:
       - bot/**
 jobs:
-  push:
+  pushArm:
     name: "yolks:bot_${{ matrix.tag }}"
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         tag:
-          - bastion
           - parkertron
           - red
           - sinusbot
@@ -24,7 +23,52 @@ jobs:
       - uses: actions/checkout@v2
       - uses: docker/setup-buildx-action@v1
         with:
-          version: "v0.5.1"
+          version: "v0.7.0"
+          buildkitd-flags: --debug
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@master
+        with:
+          platforms: arm64,amd64
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+      - uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+      - uses: docker/build-push-action@v2
+        with:
+          context: ./bot/${{ matrix.tag }}
+          file: ./bot/${{ matrix.tag }}/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+          push: true
+          tags: |
+            ghcr.io/parkervcp/yolks:bot_${{ matrix.tag }}
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+
+  pushAmd:
+    name: "yolks:bot_${{ matrix.tag }}"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        tag:
+          - bastion
+    steps:
+      - uses: actions/checkout@v2
+      - uses: docker/setup-buildx-action@v1
+        with:
+          version: "v0.7.0"
           buildkitd-flags: --debug
       - uses: docker/login-action@v1
         with: