k8s-client

2023-08-17 18:11 作者:哈密瓜hero 0人讀過 | 我要投稿

package main

import (
? ?"context"
? ?"fmt"
? ?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/klog"
? ?"time"
)

func main() {
? ?//kubeconfig := getKubeConfig()
? ?kubeconfig := "./config"

? ?config, err := clientConfig(kubeconfig)
? ?if err != nil {
? ? ? klog.Fatalf("Failed to create client config: %v", err)
? ?}

? ?config.Host = "https://192.168.0.51:6443"
? ?clientset, err := kubernetes.NewForConfig(config)
? ?if err != nil {
? ? ? klog.Fatalf("Failed to create clientset: %v", err)

? ?}
? ?listPods(clientset)
}

//func getKubeConfig() string {
// ?kubeconfig := "./config"
// ?return kubeconfig
//}

func clientConfig(kubeconfig string) (*rest.Config, error) {
? ?config, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
? ?if err != nil {
? ? ? return nil, err
? ?}
? ?return config, nil
}

func listPods(clientset *kubernetes.Clientset) {
? ?retries := 5
? ?for retries > 0 {
? ? ? pods, err := clientset.CoreV1().Pods("").List(context.TODO(), metAV1.ListOptions{})
? ? ? if err != nil {
? ? ? ? ?klog.Errorf("failed to list pod: %v", err)
? ? ? ? ?retries--
? ? ? ? ?time.Sleep(5 * time.Second) //等待一段時間后重試
? ? ? ? ?continue
? ? ? }
? ? ? fmt.Printf("Pods in the cluster:\n")
? ? ? for _, pod := range pods.Items {
? ? ? ? ?fmt.Printf("Namespace: %s, Name: %s\n", pod.Namespace, pod.Name)

? ? ? }
? ? ? break
? ?}

}