Merge pull request #3 from didil/2-docker-build-caching

Add build caching

Author: didil

.github/workflows/ci.yaml

@@ -6,23 +6,39 @@ jobs:
   build_app:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
-
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
         go-version: 1.19
 
+    - id: go-cache-paths
+      run: |
+        echo "::set-output name=go-build::$(go env GOCACHE)"
+        echo "::set-output name=go-mod::$(go env GOMODCACHE)"
+
+    - uses: actions/checkout@v3
+
+    - name: Go Build Cache
+      uses: actions/cache@v3
+      with:
+        path: ${{ steps.go-cache-paths.outputs.go-build }}
+        key: ${{ runner.os }}-go-build-${{ hashFiles('**/go.sum') }}
+
+    - name: Go Mod Cache
+      uses: actions/cache@v3
+      with:
+        path: ${{ steps.go-cache-paths.outputs.go-mod }}
+        key: ${{ runner.os }}-go-mod-${{ hashFiles('**/go.sum') }}
+
     - name: Build
       run: GOFLAGS=-v make build
 
     - name: Test
       run: GOFLAGS=-v make test
 
 
-  publish_container_image:
+  build_container_image:
     needs: build_app
-    if: github.ref == 'refs/heads/main'
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3    
@@ -46,9 +62,12 @@ jobs:
         id: set_output_vars
         run: echo "short_sha=$(git rev-parse --short ${{ github.sha }})" >> $GITHUB_OUTPUT
 
-      - name: Build and push
+      - name: Build / Push 
         uses: docker/build-push-action@v4
         with:
-          push: true
+          context: .
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          push: ${{ github.ref == 'ref/heads/main' }}
           platforms: linux/amd64,linux/arm64          
           tags: ${{ vars.DOCKER_IMAGE_NAME }}:${{ steps.set_output_vars.outputs.short_sha }}