feat(ci): update Dockerfile and CI configuration for backend image and caching

Signed-off-by: Noooste <83548733+Noooste@users.noreply.github.com>

.github/workflows/build.yml

@@ -14,9 +14,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        platform:
-          - linux/amd64
-          - linux/arm64
+        include:
+          - platform: linux/amd64
+            arch: amd64
+          - platform: linux/arm64
+            arch: arm64
 
     steps:
       - name: Checkout repository
@@ -52,8 +54,12 @@ jobs:
           platforms: ${{ matrix.platform }}
           labels: ${{ steps.meta.outputs.labels }}
           build-args: VERSION=${{ steps.meta.outputs.version }}
-          cache-from: type=gha,scope=build-${{ matrix.platform }}
-          cache-to: type=gha,mode=max,scope=build-${{ matrix.platform }}
+          cache-from: |
+            type=gha,scope=build-${{ matrix.arch }}
+            type=registry,ref=${{ secrets.DOCKER_REGISTRY }}:buildcache-${{ matrix.arch }}
+          cache-to: |
+            type=gha,mode=max,scope=build-${{ matrix.arch }}
+            type=registry,ref=${{ secrets.DOCKER_REGISTRY }}:buildcache-${{ matrix.arch }},mode=max
           outputs: type=image,name=${{ secrets.DOCKER_REGISTRY }},push-by-digest=true,name-canonical=true,push=true
 
       - name: Export digest

.github/workflows/test.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Generate swagger docs
         run: |
-          go install github.com/swaggo/swag/cmd/swag@latest
+          go install github.com/swaggo/swag/cmd/swag@v1.16.4
           cd backend && swag init
 
       - name: Run unit tests with race detector and coverage
@@ -66,6 +66,19 @@ jobs:
           cache: true
           cache-dependency-path: backend/go.sum
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Pre-build backend image with layer cache
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: Dockerfile
+          load: true
+          tags: garage-ui-smoke-backend:ci
+          cache-from: type=gha,scope=smoke-backend
+          cache-to: type=gha,mode=max,scope=smoke-backend
+
       - name: Run smoke test
         run: make test-smoke
 

Dockerfile

@@ -20,7 +20,7 @@ WORKDIR /app
 
 RUN --mount=type=cache,target=/go/pkg/mod \
     --mount=type=cache,target=/root/.cache/go-build \
-    go install github.com/swaggo/swag/cmd/swag@latest
+    go install github.com/swaggo/swag/cmd/swag@v1.16.4
 
 COPY backend/go.mod backend/go.sum ./
 

backend/tests/smoke/docker-compose.test.yml

@@ -15,6 +15,7 @@ services:
       start_period: 2s
 
   backend:
+    image: garage-ui-smoke-backend:ci
     build:
       context: ../../..
       dockerfile: Dockerfile