Create RBAC

main.go

package main

import (
	"flag"
	"fmt"
	"path/filepath"

	"k8s.io/api/rbac/v1"
	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"
)

func main() {
	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()

	config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
	if err != nil {
		panic(err)
	}
	clientset, err := kubernetes.NewForConfig(config)
	if err != nil {
		panic(err)
	}

	cr, err := clientset.RbacV1().ClusterRoles().Create(&v1.ClusterRole{
		ObjectMeta: metav1.ObjectMeta{
			Name:   "hoge",
			Labels: map[string]string{"kubernetes.io/bootstrapping": "rbac-defaults"},
		},
		Rules: []v1.PolicyRule{
			{
				APIGroups: []string{""},
				Resources: []string{"nodes"},
				Verbs:     []string{"get", "list", "watch"},
			},
			{
				APIGroups: []string{""},
				Resources: []string{"pods"},
				Verbs:     []string{"delete", "get", "list", "watch"},
			},
		},
	})
	if err != nil {
		panic(err)
	}
	fmt.Println(cr)
}