如何使用 Golang 用戶端高效擴充 Kubernetes 部署副本？

package main

import (
    "context"
    "log"
    "path/filepath"

    metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    "k8s.io/client-go/kubernetes"
    "k8s.io/client-go/rest"
    "k8s.io/client-go/tools/clientcmd"
    "k8s.io/client-go/util/homedir"
)

func main() {
    kubeconfig := filepath.Join(homedir.HomeDir(), ".kube", "config")
    config, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
    if err != nil {
        config, err = rest.InClusterConfig()
        if err != nil {
            log.Fatal(err)
        }
    }

    client, err := kubernetes.NewForConfig(config)
    if err != nil {
        log.Fatal(err)
    }

    // Get the current scale object for the deployment
    s, err := client.AppsV1().Deployments("default").GetScale(
        context.TODO(),
        "nginx",
        metav1.GetOptions{},
    )
    if err != nil {
        log.Fatal(err)
    }

    // Copy the scale object and modify the desired replica count
    sc := *s
    sc.Spec.Replicas = 10

    // Update the scale object with the modified replica count
    us, err := client.AppsV1().Deployments("default").UpdateScale(
        context.TODO(),
        "nginx",
        &sc,
        metav1.UpdateOptions{},
    )
    if err != nil {
        log.Fatal(err)
    }

    log.Println(*us)
}