Update, managed by Terraform

Author: jilgue

.github/workflows/build.yaml

@@ -11,22 +11,30 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v1
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
       - name: Set up Cloud SDK
         uses: google-github-actions/setup-gcloud@master
         with:
           project_id: monom-cicd-tools
           service_account_key: ${{ secrets.SA_KEY }}
           export_default_credentials: true
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
-
       - name: Docker login
         run: gcloud auth configure-docker
 
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
       - name: Build and push
         id: docker_build
         uses: docker/build-push-action@v2
@@ -35,6 +43,18 @@ jobs:
           file: ./Dockerfile
           push: true
           tags: gcr.io/monom-cicd-tools/${{ github.event.repository.name }}:${{ github.event.release.tag_name }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+        # This ugly bit is necessary if you don't want your cache to grow forever
+        # till it hits GitHub's limit of 5GB.
+        # Temp fix
+        # https://github.com/docker/build-push-action/issues/252
+        # https://github.com/moby/buildkit/issues/1896
+
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
 
       - name: Slack notification
         uses: act10ns/slack@v1