return fmt.Sprintf("etcd-%s", hostname), nil
	}
	return "", fmt.Errorf("defaulting --name failed due to all ETCD_NAME, ETCD_HOSTNAME and HOSTNAME unset")
}

func (opts *migrateOpts) validateAndDefault() error {
	var err error

	if opts.name == "" {
		klog.Infof("--name unset - falling back to %s variable", etcdNameEnv)
		if opts.name, err = defaultName(); err != nil {
			return err
		}
	}