feat: simple demo add go app

Author: EndlessSeeker

mse-simple-demo/GoApp/Dockerfile

@@ -0,0 +1,7 @@
+FROM registry-cn-hangzhou.ack.aliyuncs.com/dev/alpine:3.18-update
+
+RUN apk add --no-cache bash
+
+WORKDIR /
+COPY GoApp /GoApp
+ENTRYPOINT ["/GoApp"]

mse-simple-demo/GoApp/build.sh

@@ -0,0 +1,4 @@
+CGO_ENABLED=0 GOOS=linux GOARCH=amd64 ./aliyun-go-agent -mse
+docker build -t gin-server-a:3.0.8 .
+docker tag gin-server-a:3.0.8 registry.cn-hangzhou.aliyuncs.com/mse-governance-demo/gin-server-a:3.0.8
+docker push registry.cn-hangzhou.aliyuncs.com/mse-governance-demo/gin-server-a:3.0.8

mse-simple-demo/GoApp/go.mod

@@ -0,0 +1,34 @@
+module github.com/aliyun/alibabacloud-microservice-demo/mse-simple-demo/GoApp
+
+go 1.20
+
+require github.com/gin-gonic/gin v1.10.0
+
+require (
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.20.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

mse-simple-demo/GoApp/go.sum

@@ -0,0 +1,106 @@
+github.com/bytedance/sonic v1.11.6 h1:oUp34TzMlL+OY1OUWxHqsdkgC/Zfc85zGqw9siXjrc0=
+github.com/bytedance/sonic v1.11.6/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4=
+github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM=
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mse-simple-demo/GoApp/handler.go

@@ -0,0 +1,35 @@
+package main
+
+import "github.com/gin-gonic/gin"
+
+func toAHandler(c *gin.Context) {
+	resp, err := toA(c)
+	if err != nil {
+		c.String(500, err.Error())
+		return
+	}
+
+	c.String(200, resp)
+}
+
+func toABCHandler(c *gin.Context) {
+	resp, err := toABC(c)
+	if err != nil {
+		c.String(500, err.Error())
+		return
+	}
+
+	c.String(200, resp)
+}
+
+func flowHandler(c *gin.Context) {
+	c.String(200, "flow")
+}
+
+func paramHotHandler(c *gin.Context) {
+	c.String(200, "paramHot")
+}
+
+func isolateHandler(c *gin.Context) {
+	c.String(200, "isolate")
+}

mse-simple-demo/GoApp/main.go

@@ -0,0 +1,24 @@
+package main
+
+import "github.com/gin-gonic/gin"
+
+func main() {
+	r := gin.Default()
+
+	gin.New()
+
+	registerEngine(r)
+	if err := r.Run(); err != nil {
+		panic(err)
+	}
+}
+
+func registerEngine(r *gin.Engine) {
+	g := r.Group("/GoApp")
+
+	g.GET("/toA", toAHandler)
+	g.GET("/toABC", toABCHandler)
+	g.GET("/flow", flowHandler)
+	g.GET("/param/:hot", paramHotHandler)
+	g.GET("/isolate", isolateHandler)
+}

mse-simple-demo/GoApp/service.go

@@ -0,0 +1,136 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"os"
+	"sync"
+	"time"
+)
+
+const localhost = "127.0.0.1"
+
+var httpClient *http.Client
+var tag string
+var ip string
+
+func init() {
+	httpClient = &http.Client{
+		Timeout:   time.Second * 3,
+		Transport: http.DefaultTransport,
+	}
+	tag = os.Getenv("MSE_ALICLOUD_SERVICE_TAG")
+	ip = getIp()
+}
+
+func getResponseBody(resp *http.Response) ([]byte, error) {
+	if resp == nil || resp.StatusCode != http.StatusOK {
+		return nil, errors.New(fmt.Sprintf("http request status code not 200: %d", resp.StatusCode))
+	}
+	defer func() {
+		if resp.Body != nil {
+			resp.Body.Close()
+		}
+	}()
+
+	b, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	return b, nil
+}
+
+func getIp() string {
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return localhost
+	}
+
+	for _, addr := range addrs {
+		// 检查网络地址是否是IP地址（而非IP网络）
+		if ipNet, ok := addr.(*net.IPNet); ok && !ipNet.IP.IsLoopback() {
+			// 仅保留IPv4地址
+			if ipNet.IP.To4() != nil {
+				return ipNet.IP.String()
+			}
+		}
+	}
+	return localhost
+}
+
+func toApp(ctx context.Context, host string, path string) (string, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, fmt.Sprintf("http://%s%s", host, path), nil)
+	if err != nil {
+		fmt.Printf("[toA] new http request with context error: %v\n", err)
+		return "", err
+	}
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		fmt.Printf("[toA] http request error: %v\n", err)
+		return "", err
+	}
+
+	b, err := getResponseBody(resp)
+	if err != nil {
+		fmt.Printf("[toA] get response body error: %v\n", err)
+		return "", err
+	}
+
+	return fmt.Sprintf("GoApp[tag=%s][%s][config=%s]", tag, ip, "") + " -> " + string(b), nil
+}
+
+func toA(ctx context.Context) (string, error) {
+	return toApp(ctx, "spring-cloud-a:20001", "/a")
+}
+
+func toABC(ctx context.Context) (string, error) {
+	w := sync.WaitGroup{}
+	w.Add(3)
+	var aResp, bResp, cResp string
+	var aErr, bErr, cErr error
+	go func() {
+		aResp, aErr = toApp(ctx, "spring-cloud-a:20001", "/a")
+		if aErr != nil {
+			fmt.Printf("[toABC] to a error: %v\n", aErr)
+			aResp = aErr.Error()
+		}
+		w.Done()
+	}()
+	go func() {
+		bResp, bErr = toApp(ctx, "spring-cloud-b:20002", "/b")
+		if bErr != nil {
+			fmt.Printf("[toABC] to b error: %v\n", bErr)
+			bResp = bErr.Error()
+		}
+		w.Done()
+	}()
+	go func() {
+		cResp, cErr = toApp(ctx, "spring-cloud-c:20003", "/c")
+		if cErr != nil {
+			fmt.Printf("[toABC] to c error: %v\n", cErr)
+			cResp = cErr.Error()
+		}
+		w.Done()
+	}()
+	w.Wait()
+
+	return aResp + "\n" + bResp + "\n" + cResp, nil
+}
+
+func flow(ctx context.Context) (string, error) {
+	return "", nil
+}
+
+func paramHot(ctx context.Context) (string, error) {
+	return "", nil
+}
+
+func isolate(ctx context.Context) (string, error) {
+	return "", nil
+}