Golang通过K8sService暴露应用方法

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

<strong>FROM</strong> golang:alpine <strong>AS</strong> builder
WORKDIR /app
COPY . .
RUN go build -o main .
<p><strong>FROM</strong> alpine
RUN apk --no-cache add ca-certificates
WORKDIR /root/
COPY --from=builder /app/main .
CMD ["./main"]</p>

<strong>apiVersion:</strong> apps/v1
<strong>kind:</strong> Deployment
<strong>metadata:</strong>
  name: go-app-deployment
<strong>spec:</strong>
  replicas: 2
  selector:
    matchLabels:
      app: go-app
  template:
    metadata:
      labels:
        app: go-app
    spec:
      containers:
      - name: go-app
        image: your-registry/go-app:v1
        ports:
        - containerPort: 8080

<strong>apiVersion:</strong> v1
<strong>kind:</strong> Service
<strong>metadata:</strong>
  name: go-app-service
<strong>spec:</strong>
  selector:
    app: go-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 8080
  type: ClusterIP

<strong>apiVersion:</strong> v1
<strong>kind:</strong> Service
<strong>metadata:</strong>
  name: go-app-service
<strong>spec:</strong>
  selector:
    app: go-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 8080
      nodePort: 30080
  type: NodePort

<strong>apiVersion:</strong> v1
<strong>kind:</strong> Service
<strong>metadata:</strong>
  name: go-app-service
<strong>spec:</strong>
  selector:
    app: go-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 8080
  type: LoadBalancer