type configMutatorsFunc func(*kubeadmapi.InitConfiguration, *pkiutil.CertConfig) error

// KubeadmCert represents a certificate that Kubeadm will create to function properly.
type KubeadmCert struct {
	Name     string
	LongName string
	BaseName string
	CAName   string
	// Some attributes will depend on the InitConfiguration, only known at runtime.
	// These functions will be run in series, passed both the InitConfiguration and a cert Config.

		rm.cas[ca.Name] = &CAExpirationHandler{
			Name:       ca.Name,
			LongName:   ca.LongName,
			FileName:   ca.BaseName,
			readwriter: pkiReadWriter,
		}
	}

	// gets the list of certificates that should be considered for renewal
	kubeConfigs := []struct {
		longName string
		fileName string
	}{
		{
			longName: "certificate embedded in the kubeconfig file for the admin to use and for kubeadm itself",

		// get the cobra.Command skeleton for this command
		cmd := &cobra.Command{
			Use:   handler.Name,
			Short: fmt.Sprintf("Renew the %s", handler.LongName),
			Long:  fmt.Sprintf(genericCertRenewLongDesc, handler.LongName),
		}
		addRenewFlags(cmd, flags)
		// get the implementation of renewing this certificate
		renewalFunc := func(handler *renewal.CertificateRenewHandler) func() error {

				Typeflag: TypeReg,
				Name:     strings.Repeat("longname/", 15) + "16gig.txt",
				Size:     16 << 30,
				Mode:     0644,
				Uid:      1000,
				Gid:      1000,
				Uname:    "guillaume",
				Gname:    "guillaume",
				ModTime:  time.Unix(1399583047, 0),
			}, nil},
		},
	}, {
		// This file was produced using GNU tar v1.17.
		//	gnutar -b 4 --format=ustar (longname/)*15 + file.txt
		file: "testdata/ustar.tar",

	phase := workflow.Phase{
		Name:  certSpec.Name,
		Short: fmt.Sprintf("Generate the %s", certSpec.LongName),
		Long: fmt.Sprintf(
			genericLongDesc,
			certSpec.LongName,
			certSpec.BaseName,
			getSANDescription(certSpec),
		),
		Run:          run,
		InheritFlags: getCertPhaseFlags(certSpec.Name),
	}
	return phase
}

	const longName = "././@LongLink"
	if len(hdr.Name) > nameSize {
		data := hdr.Name + "\x00"
		if err := tw.writeRawFile(longName, data, TypeGNULongName, FormatGNU); err != nil {
			return err
		}
	}
	if len(hdr.Linkname) > nameSize {
		data := hdr.Linkname + "\x00"
		if err := tw.writeRawFile(longName, data, TypeGNULongLink, FormatGNU); err != nil {
			return err
		}

}

func exitWithUsage() {
	fmt.Fprintf(os.Stderr, "usage: %s\n", CmdTest.UsageLine)
	fmt.Fprintf(os.Stderr, "Run 'go help %s' and 'go help %s' for details.\n", CmdTest.LongName(), HelpTestflag.LongName())

	base.SetExitStatus(2)
	base.Exit()

// bits (before umask).
// If there is an error, it will be of type *PathError.
func Mkdir(name string, perm FileMode) error {
	longName := fixLongPath(name)
	e := ignoringEINTR(func() error {
		return syscall.Mkdir(longName, syscallMode(perm))
	})

	if e != nil {
		return &PathError{Op: "mkdir", Path: name, Err: e}
	}

	return al
}

func tcpGrpcAccessLogFromTelemetry(push *PushContext, prov *meshconfig.MeshConfig_ExtensionProvider_EnvoyTcpGrpcV3LogProvider) *accesslog.AccessLog {
	logName := TCPEnvoyAccessLogFriendlyName
	if prov != nil && prov.LogName != "" {
		logName = prov.LogName
	}

	filterObjects := envoyWasmStateToLog
	if len(prov.FilterStateObjectsToLog) != 0 {
		filterObjects = prov.FilterStateObjectsToLog
	}

	if isListener {
		accessLogFriendlyName = listenerEnvoyAccessLogFriendlyName
	}
	fl := &grpcaccesslog.TcpGrpcAccessLogConfig{
		CommonConfig: &grpcaccesslog.CommonGrpcAccessLogConfig{
			LogName: accessLogFriendlyName,
			GrpcService: &core.GrpcService{
				TargetSpecifier: &core.GrpcService_EnvoyGrpc_{
					EnvoyGrpc: &core.GrpcService_EnvoyGrpc{
						ClusterName: EnvoyAccessLogCluster,
					},
				},