Enhanced git context and cache workflow

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/ci.yml

@@ -20,6 +20,8 @@ jobs:
       -
         name: Checkout
         uses: actions/checkout@v2.3.3
+        with:
+          path: action
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v1
@@ -35,7 +37,7 @@ jobs:
       -
         name: Build and push
         id: docker_build
-        uses: ./
+        uses: ./action
         with:
           file: ./test/Dockerfile
           builder: ${{ steps.buildx.outputs.name }}
@@ -67,6 +69,8 @@ jobs:
       -
         name: Checkout
         uses: actions/checkout@v2.3.3
+        with:
+          path: action
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v1
@@ -82,7 +86,7 @@ jobs:
       -
         name: Build and push
         id: docker_build
-        uses: ./
+        uses: ./action
         with:
           file: ./test/Dockerfile
           builder: ${{ steps.buildx.outputs.name }}
@@ -215,8 +219,70 @@ jobs:
         if: always()
         uses: crazy-max/ghaction-dump-context@v1
 
-  github-cache:
+  github-cache-first:
     runs-on: ubuntu-latest
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2.3.3
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+      -
+        name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          driver-opts: network=host
+      -
+        name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-ghcache-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-ghcache-
+      -
+        name: Erase cache
+        run: |
+          rm -rf /tmp/.buildx-cache/*
+      -
+        name: Build and push
+        id: docker_build
+        uses: ./
+        with:
+          context: ./test
+          file: ./test/Dockerfile-multi-golang
+          builder: ${{ steps.buildx.outputs.name }}
+          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
+      -
+        name: Inspect
+        run: |
+          docker buildx imagetools inspect localhost:5000/name/app:1.0.0
+      -
+        name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}
+      -
+        name: Dump context
+        if: always()
+        uses: crazy-max/ghaction-dump-context@v1
+
+  github-cache-hit:
+    runs-on: ubuntu-latest
+    needs: github-cache-first
     services:
       registry:
         image: registry:2
@@ -243,9 +309,9 @@ jobs:
         id: cache
         with:
           path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          key: ${{ runner.os }}-buildx-ghcache-${{ github.sha }}
           restore-keys: |
-            ${{ runner.os }}-buildx-
+            ${{ runner.os }}-buildx-ghcache-
       -
         name: Build and push
         id: docker_build