Client Go with Home Directory Example

client_go_example.go

package main

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

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

func Test_Some_Kind_Of_Test(t *testing.T) {
	var kubeconfig *string
	if home := homedir.HomeDir(); home != "" {
		kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
	} else {
		kubeconfig = flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
	}
	flag.Parse()

	// use the current context in kubeconfig
	config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
	if err != nil {
		panic(err.Error())
	}
	client := clientset.NewForConfigOrDie(config)
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	api := client.CoreV1()
	pods, err := api.Pods("some-namespace").List(ctx, metav1.ListOptions{})
	if err != nil {
		panic(err.Error())
	}
	for _, v := range pods.Items {
		log.Println(v.Labels)
		log.Println(v.Name)
		log.Println(v.Status.Phase)
	}
}