openstack修改用户口令

openstack user create --domain default --password-prompt admin
刚刚创建了admin用户，结果没有设置密码，怎样给admin设置一个密码，命令试过好几次都不行，以下列出的是系统命令帮助。

[root@controller ~]# openstack user -h
Command "user" matches:
  user create
  user delete
  user list
  user password set
  user set
  user show
[root@controller ~]# openstack user password set -h
usage: openstack user password set [-h] [--password <new-password>]
                                   [--original-password <original-password>]

Change current user password

optional arguments:
  -h, --help            show this help message and exit
  --password <new-password>
                        New user password
  --original-password <original-password>
                        Original user password