client-go代码实例

获取所有命名空间下的pod的相关信息

package main

import (
	"context"
	"flag"
	"fmt"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/client-go/kubernetes"
	"k8s.io/client-go/tools/clientcmd"
	"k8s.io/client-go/util/homedir"
	"k8s.io/klog"
	"path/filepath"
)

func  main()  {
	var kubeconfig *string
	ctx := context.Background()
	if home := homedir.HomeDir(); home != "" {
		kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "absolute path to kubeconfig file")
	} else {
		kubeconfig = flag.String("kubeconfig", "","absolute path to kubeconfig file")
	}
	flag.Parsed()
	config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
	if err != nil {
		klog.Fatal(err)
	}
	clientSet, err := kubernetes.NewForConfig(config)
	if err != nil {
		klog.Fatal(err)
	}

	namespaceList, err := clientSet.CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
	if err != nil {
		klog.Fatal(err)
		return
	}
	namespaces := namespaceList.Items
	for _, namespace := range namespaces {
		fmt.Println("namespace: ", namespace.Name + " status:"+ string(namespace.Status.Phase))
		podsList, err := clientSet.CoreV1().Pods(namespace.Name).List(ctx, metav1.ListOptions{})
		if err != nil {
			klog.Fatal(err)
			return
		}
		pods := podsList.Items
		for _, pod := range pods {
			fmt.Println("pods: ", pod.Name)
			fmt.Println("status: ", pod.Status.Phase)

		}


  	}




}

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