Golang如何使用Istio实现服务网格管理

package main
<p>import (
"fmt"
"log"
"net/http"
)</p><p>func helloHandler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hello from Golang service!")
}</p><p>func main() {
http.HandleFunc("/hello", helloHandler)
log.Println("Server starting on port 8080")
log.Fatal(http.ListenAndServe(":8080", nil))
}

docker build -t your-registry/go-service:v1 .
docker push your-registry/go-service:v1

apiVersion: apps/v1
kind: Deployment
metadata:
  name: go-service
spec:
  replicas: 1
  selector:
    matchLabels:
      app: go-service
  template:
    metadata:
      labels:
        app: go-service
        version: v1
    spec:
      containers:
      - name: go-app
        image: your-registry/go-service:v1
        ports:
        - containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: go-service
spec:
  selector:
    app: go-service
  ports:
    - protocol: TCP
      port: 80
      targetPort: 8080

kubectl label namespace default istio-injection=enabled

kubectl apply -f deployment.yaml

apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: go-service-route
spec:
  hosts:
  - go-service
  http:
  - route:
    - destination:
        host: go-service
        subset: v1
      weight: 90
    - destination:
        host: go-service
        subset: v2
      weight: 10

apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
  name: go-service-dr
spec:
  host: go-service
  subsets:
  - name: v1
    labels:
      version: v1
  - name: v2
    labels:
      version: v2

apiVersion: security.istio.io/v1beta1
kind: PeerAuthentication
metadata:
  name: default
spec:
  mtls:
    mode: STRICT

req.Header.Set("User-Agent", "go-client")
// Istio 会自动捕获 span 并上报