code: func buildInsecureBootstrapKubeConfig(endpoint, clustername string) *clientcmdapi.Config {
  	controlPlaneEndpoint := fmt.Sprintf("https://%s", endpoint)
  	bootstrapConfig := kubeconfigutil.CreateBasic(controlPlaneEndpoint, clustername, BootstrapUser, []byte{})
  	bootstrapConfig.Clusters[clustername].InsecureSkipTLSVerify = true
  	return bootstrapConfig
  }
docs: // buildInsecureBootstrapKubeConfig makes a kubeconfig object that connects insecurely to the API Server for bootstrapping purposes