ci: local-cache job to test local cache feature

.github/workflows/ci.yml

@@ -942,6 +942,63 @@ jobs:
         run: |
           docker buildx imagetools inspect localhost:5000/name/app:1.0.0 --format '{{json .}}'
 
+  local-cache:
+    runs-on: ubuntu-latest
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          version: ${{ inputs.buildx-version || env.BUILDX_VERSION }}
+          driver-opts: |
+            network=host
+            image=${{ inputs.buildkit-image || env.BUILDKIT_IMAGE }}
+          buildkitd-flags: --debug
+      -
+        name: Cache Build
+        uses: actions/cache@v4
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-local-test-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-local-test-
+      -
+        name: Build and push
+        uses: ./
+        with:
+          context: ./test
+          file: ./test/multi.Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            localhost:5000/name/app:latest
+            localhost:5000/name/app:1.0.0
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+      -
+        name: Inspect
+        run: |
+          docker buildx imagetools inspect localhost:5000/name/app:1.0.0 --format '{{json .}}'
+      -
+        # 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
+
   standalone:
     runs-on: ubuntu-latest
     steps: