return nil, err
	}

	kubeconfigPath := cfg.Meta.String(kubeconfigMetaKey)
	kubeconfigPath, err = file.NormalizePath(kubeconfigPath)
	if err != nil {
		return nil, err
	}

	var client istioKube.CLIClient
	if len(cfg.HTTPProxy) > 0 {
		proxyURL, err := url.Parse(cfg.HTTPProxy)
		if err != nil {
			return nil, err
		}
		client, err = buildClientWithProxy(kubeconfigPath, proxyURL)
		if err != nil {

	if _, err := os.Stat(filepath); os.IsNotExist(err) {
		isControlPlaneNode = false
	}
	if len(nodeOptions.kubeConfigPath) == 0 {
		// Update the kubeconfig path depending on whether this is a control plane node or not.
		nodeOptions.kubeConfigPath = constants.GetKubeletKubeConfigPath()
		if isControlPlaneNode {
			nodeOptions.kubeConfigPath = constants.GetAdminKubeConfigPath()
		}
	}

	externalCfg := &v1beta4.UpgradeConfiguration{}

}

func (c *hollowNodeConfig) createClientConfigFromFile() (*restclient.Config, error) {
	clientConfig, err := clientcmd.LoadFromFile(c.KubeconfigPath)
	if err != nil {
		return nil, fmt.Errorf("error while loading kubeconfig from file %v: %v", c.KubeconfigPath, err)
	}
	config, err := clientcmd.NewDefaultClientConfig(*clientConfig, &clientcmd.ConfigOverrides{}).ClientConfig()
	if err != nil {

func SetDefaults_FileDiscovery(obj *FileDiscovery) {
	// Make sure file URL becomes path
	if len(obj.KubeConfigPath) != 0 {
		u, err := url.Parse(obj.KubeConfigPath)
		if err == nil && u.Scheme == "file" {
			obj.KubeConfigPath = u.Path
		}
	}
}

// SetDefaults_BootstrapTokens sets the defaults for the .BootstrapTokens field

		return errors.Errorf("%s: spec was nil", errInvalid)
	}
	kubeConfigPath := filepath.Join(kubeConfigDir, name)
	if _, err := os.Stat(kubeConfigPath); err == nil {
		return errors.Errorf("%s: kube config: %s", errExist, kubeConfigPath)
	} else if !os.IsNotExist(err) {
		return errors.Wrapf(err, "unexpected error while checking if file exists: %s", kubeConfigPath)
	}
	if pkiutil.CSROrKeyExist(kubeConfigDir, name) {

		if !ok {
			return nil, nil, nil, nil, cmdutil.TypeMismatchErr("dryRun", "bool")
		}
	}

	client, err := getClient(flags.kubeConfigPath, *isDryRun)
	if err != nil {
		return nil, nil, nil, nil, errors.Wrapf(err, "couldn't create a Kubernetes client from file %q", flags.kubeConfigPath)
	}

	ignorePreflightErrorsSet, err := validation.ValidateIgnorePreflightErrors(flags.ignorePreflightErrors, ignoreErrCfg)
	if err != nil {

			}
		})

	}
}

func getEmbeddedCerts(tmpDir, kubeConfig string) ([]*x509.Certificate, error) {
	kubeconfigPath := filepath.Join(tmpDir, kubeConfig)
	newConfig, err := clientcmd.LoadFromFile(kubeconfigPath)
	if err != nil {
		return nil, errors.Wrapf(err, "failed to load kubeconfig file %s", kubeconfigPath)
	}

	authInfoName := newConfig.Contexts[newConfig.CurrentContext].AuthInfo

}

func autoConvert_v1beta4_FileDiscovery_To_kubeadm_FileDiscovery(in *FileDiscovery, out *kubeadm.FileDiscovery, s conversion.Scope) error {
	out.KubeConfigPath = in.KubeConfigPath
	return nil
}

// Convert_v1beta4_FileDiscovery_To_kubeadm_FileDiscovery is an autogenerated conversion function.

// FileDiscovery is used to specify a file or URL to a kubeconfig file from which to load cluster information
type FileDiscovery struct {
	// KubeConfigPath is used to specify the actual file path or URL to the kubeconfig file from which to load cluster information
	KubeConfigPath string `json:"kubeConfigPath"`
}

// HostPathMount contains elements describing volumes that are mounted from the
// host.
type HostPathMount struct {

}

// FileDiscovery is used to specify a file or URL to a kubeconfig file from which to load cluster information
type FileDiscovery struct {
	// KubeConfigPath is used to specify the actual file path or URL to the kubeconfig file from which to load cluster information
	KubeConfigPath string
}

// GetControlPlaneImageRepository returns name of image repository
// for control plane images (API,Controller Manager,Scheduler and Proxy)