To optimize Docker image size.

.github/workflows/push_image.yml

@@ -2,13 +2,22 @@ name: Docker Image CI
 
 on:
   push:
-    branches: ["main"]
+    tags:
+      - "*"
 
 jobs:
   build-and-push:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ">=1.22.5"
+
+      - name: Build certimate
+        run: go build -o certimate
+
       - name: Checkout code
         uses: actions/checkout@v4
 
@@ -26,6 +35,10 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
+      - name: Extract Git tag
+        id: get_tag
+        run: echo "tag=$(git describe --tags --abbrev=0)" >> $GITHUB_ENV
+
       - name: Build and push Docker image
         uses: docker/build-push-action@v6
         with:
@@ -33,4 +46,4 @@ jobs:
           file: ./Dockerfile_build
           platforms: linux/amd64,linux/arm64
           push: true
-          tags: registry.cn-shanghai.aliyuncs.com/usual2970/certimate:latest
+          tags: registry.cn-shanghai.aliyuncs.com/usual2970/certimate:${{ env.tag }}

.gitignore

@@ -2,7 +2,7 @@ __debug_bin*
 vendor
 pb_data
 main
-./certimate
+certimate
 build
 /docker/data
 

Dockerfile_build

@@ -1,10 +1,8 @@
-FROM golang:1.22-alpine
+FROM alpine:3.20
 
 
 WORKDIR /app
 
-COPY ../. /app/
-
-RUN go build -o certimate
+COPY certimate /app/certimate
 
 ENTRYPOINT ["./certimate", "serve", "--http", "0.0.0.0:8090"]