diff --git a/cmd/kubeadm/app/cmd/token.go b/cmd/kubeadm/app/cmd/token.go index 6d51addecb0..73bdb40995e 100644 --- a/cmd/kubeadm/app/cmd/token.go +++ b/cmd/kubeadm/app/cmd/token.go @@ -114,7 +114,7 @@ func NewCmdToken(out io.Writer, errW io.Writer) *cobra.Command { }, } createCmd.Flags().DurationVar(&tokenDuration, - "ttl", kubeadmconstants.DefaultTokenDuration, "The duration before the token is automatically deleted. 0 means 'never expires'.") + "ttl", kubeadmconstants.DefaultTokenDuration, "The duration before the token is automatically deleted (e.g. 1s, 2m, 3h). 0 means 'never expires'.") createCmd.Flags().StringSliceVar(&usages, "usages", kubeadmconstants.DefaultTokenUsages, "The ways in which this token can be used. Valid options: [signing,authentication].") createCmd.Flags().StringVar(&description,