Short: "XDS proxy agent",
		FParseErrWhitelist: cobra.FParseErrWhitelist{
			// Allow unknown flags for backward-compatibility.
			UnknownFlags: true,
		},
		PersistentPreRunE: configureLogging,
		RunE: func(c *cobra.Command, args []string) error {
			cmd.PrintFlags(c.Flags())
			log.Infof("Version %s", version.Info.String())

			raiseLimits()

			err := initProxy(args)
			if err != nil {
				return err

func newCmdNode(out io.Writer) *cobra.Command {
	nodeOptions := newNodeOptions()
	nodeRunner := workflow.NewRunner()

	cmd := &cobra.Command{
		Use:   "node",
		Short: "Upgrade commands for a node in the cluster",
		RunE: func(cmd *cobra.Command, args []string) error {
			if err := validation.ValidateMixedArguments(cmd.Flags()); err != nil {
				return err
			}

			return nodeRunner.Run(args)
		},
		Args: cobra.NoArgs,
	}

// These variables hold the decoded operation specified by the first argument.
// op holds the operation we are doing (prtx).
// verbose tells whether the 'v' option was specified.
var (
	op      rune
	verbose bool
)

// setOp parses the operation string (first argument).
func setOp(arg string) {
	// Recognize 'go tool pack grc' because that was the
	// formerly canonical way to build a new archive

	SilenceUsage: true,
	PreRunE: func(c *cobra.Command, args []string) error {
		if err := istiolog.Configure(logOptions); err != nil {
			log.Errorf("Failed to configure log %v", err)
		}
		return nil
	},
	RunE: func(c *cobra.Command, args []string) (err error) {
		ctx := c.Context()

		// Start controlz server
		_, _ = ctrlz.Run(ctrlzOptions, nil)

		var cfg *config.Config
		if cfg, err = constructConfig(); err != nil {

		renewCerts:     true,
	}

	cmd := &cobra.Command{
		Use:                   "apply [version]",
		DisableFlagsInUseLine: true,
		Short:                 "Upgrade your Kubernetes cluster to the specified version",
		RunE: func(cmd *cobra.Command, args []string) error {
			if err := validation.ValidateMixedArguments(cmd.Flags()); err != nil {
				return err
			}
			return runApply(cmd.Flags(), flags, args)
		},
	}

func isTest(name, prefix string) bool {
	if !strings.HasPrefix(name, prefix) {
		return false
	}
	if len(name) == len(prefix) { // "Test" is ok
		return true
	}
	rune, _ := utf8.DecodeRuneInString(name[len(prefix):])
	return !unicode.IsLower(rune)
}

// playExample synthesizes a new *ast.File based on the provided
// file with the provided function body as the body of main.

kube-scheduler is the reference implementation.
See [scheduling](https://kubernetes.io/docs/concepts/scheduling-eviction/)
for more information about scheduling and the kube-scheduler component.`,
		RunE: func(cmd *cobra.Command, args []string) error {
			return runCommand(cmd, opts, registryOptions...)
		},
		Args: func(cmd *cobra.Command, args []string) error {
			for _, arg := range args {
				if len(arg) > 0 {

				if err != nil {
					return nil, err
				}
				buf = bytes.NewBuffer(b)
			}
			if c.Bool("export") {
				file := file
				if !c.Bool("combine") {
					file = strings.Map(func(r rune) rune {
						switch {
						case r >= 'a' && r <= 'z':
							return r
						case r >= 'A' && r <= 'Z':
							return r
						case r >= '0' && r <= '9':
							return r

	}
}

// isExported reports whether this is an exported - upper case - name.
func isExported(name string) bool {
	rune, _ := utf8.DecodeRuneInString(name)
	return unicode.IsUpper(rune)
}

// isSent reports whether this struct field is to be transmitted.
// It will be transmitted only if it is exported and not a chan or func field
// or pointer to chan or func.

func subscript(x uint64) string {
	const w = len("₀") // all digits 0...9 have the same utf8 width
	var buf [32 * w]byte
	i := len(buf)
	for {
		i -= w
		utf8.EncodeRune(buf[i:], '₀'+rune(x%10)) // '₀' == U+2080
		x /= 10
		if x == 0 {
			break
		}
	}
	return string(buf[i:])