refactor: extract dockerfile content to standalone files

.licenserc.yaml

@@ -83,6 +83,7 @@ header:
     - '**/docs/**'
     - '**/.husky/pre-commit'
     - '**/.nvmrc'
+    - 'app/dubboctl/internal/dubbo/dockerfiles/**'
     - '**/**.txtar'
     - '**/**gen.go'
     - '**/api/**'

app/dubboctl/internal/dubbo/dockerfile.go

@@ -17,49 +17,20 @@
 
 package dubbo
 
-var (
-	DockerfileGolang = `
-# Please modify your template according to your business needs!!!
-
-FROM golang:alpine AS builder    
-                                                                                                                                                                           
-LABEL stage=gobuilder    
-    
-ENV CGO_ENABLED 0    
-ENV GOPROXY https://goproxy.cn,direct    
-RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories    
-    
-WORKDIR /build    
-    
-ADD go.mod .    
-ADD go.sum .    
-RUN go mod download    
-COPY . .    
-COPY ./conf /app/conf    
-RUN go build -ldflags="-s -w" -o /app/dubbogo ./cmd    
-    
-FROM scratch    
-    
-WORKDIR /app    
-COPY --from=builder /app/dubbogo /app/dubbogo    
-COPY --from=builder /app/conf /app/conf    
-ENV DUBBO_GO_CONFIG_PATH=/app/conf/dubbogo.yaml    
-    
-CMD ["./dubbogo"]    
-`
-
-	DockerfileJava = `
-# Please modify your template according to your business needs!!!
-
-FROM openjdk:8-jdk-alpine
-
-ADD target/demo-0.0.1-SNAPSHOT.jar app.jar
-ENV JAVA_OPTS=""
-ENTRYPOINT exec java $JAVA_OPTS -jar /app.jar
-`
+import (
+	_ "embed"
+)
 
-	DockerfileByRuntime = map[string]string{
-		"go":   DockerfileGolang,
-		"java": DockerfileJava,
-	}
+// embeded dockerfile content
+var (
+	//go:embed dockerfiles/go.dockerfile
+	dockerfileGolang []byte
+	//go:embed dockerfiles/java.dockerfile
+	dockerfileJava []byte
 )
+
+// DockerfileByRuntime is a map of runtime to dockerfile content.
+var DockerfileByRuntime = map[string][]byte{
+	"go":   dockerfileGolang,
+	"java": dockerfileJava,
+}

app/dubboctl/internal/dubbo/dockerfiles/go.dockerfile

@@ -0,0 +1,27 @@
+# Please modify your template according to your business needs!!!
+
+FROM golang:alpine AS builder
+
+LABEL stage=gobuilder
+
+ENV CGO_ENABLED 0
+ENV GOPROXY https://goproxy.cn,direct
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
+WORKDIR /build
+
+ADD go.mod .
+ADD go.sum .
+RUN go mod download
+COPY . .
+COPY ./conf /app/conf
+RUN go build -ldflags="-s -w" -trimpath -o /app/dubbogo ./cmd
+
+FROM scratch
+
+WORKDIR /app
+COPY --from=builder /app/dubbogo /app/dubbogo
+COPY --from=builder /app/conf /app/conf
+ENV DUBBO_GO_CONFIG_PATH=/app/conf/dubbogo.yaml
+
+CMD ["./dubbogo"]

app/dubboctl/internal/dubbo/dockerfiles/java.dockerfile

@@ -0,0 +1,7 @@
+# Please modify your template according to your business needs!!!
+
+FROM openjdk:8-jdk-alpine
+
+ADD target/demo-0.0.1-SNAPSHOT.jar app.jar
+ENV JAVA_OPTS=""
+ENTRYPOINT exec java $JAVA_OPTS -jar /app.jar

app/dubboctl/internal/dubbo/dubbo.go

@@ -474,7 +474,7 @@ func (f *Dubbo) EnsureDockerfile(cmd *cobra.Command) (err error) {
 		fmt.Fprintln(cmd.OutOrStdout(), "The runtime of your current project is not one of Java or go. We cannot help you generate a Dockerfile template.")
 		return
 	}
-	if err = os.WriteFile(dockerfilepath, []byte(dockerfilebytes), 0o644); err != nil {
+	if err = os.WriteFile(dockerfilepath, dockerfilebytes, 0o644); err != nil {
 		return
 	}
 	return