1. 登陆rancher容器获取user【docker部署和helm部署都一样，进到容器内都是同一路径】

$ kubectl  get user
NAME           AGE
u-222ms        82m
u-4j5jf        82m
u-b4qkhsnliz   139d
u-fvj64        83m
u-jn58d        84m
u-llw8l        83m
u-mo773yttt4   139d
u-p5n92        83m
u-sp8hj        83m
user-95w4j     139d

2. 编辑用户,直接把passwd字段复制过来覆盖即可，不需要解密，username字段就是当前用户

$ kubectl  edit user user-95w4jresourceVersion: "91737350"uid: d1b7757b-179e-4846-8c0f-7222d13fe669
password: $2a$10$iuasdcasdcdcce82ch2c9h2YE5wer/9gJwPdXJv/VS37OkNS
principalIds:
- local://user-95w4j
spec: {}
status:conditions: null
username: admin