Gitlab不小心关闭了sign-in，无法登录web的坑。。。

手贱一不小心用root在gitlab后台把登录功能给关了，当时我就懵逼了。

解决方法如下：

#进入数据库修改配置
[root@gitlab-server ~]# gitlab-psql gitlabhq_production
could not change directory to "/root"
psql (9.2.)
Type "help" for help.

gitlabhq_production=# 

若想查看资料库列表：

[root@gitlab-server ~]# gitlab-psql -l
could not change directory to "/root"
                                             List of databases
        Name         |    Owner    | Encoding |   Collate   |    Ctype    |        Access privileges
---------------------+-------------+----------+-------------+-------------+---------------------------------
 gitlabhq_production | gitlab      | UTF8     | en_US.UTF- | en_US.UTF- |
 postgres            | gitlab-psql | UTF8     | en_US.UTF- | en_US.UTF- |
 template0           | gitlab-psql | UTF8     | en_US.UTF- | en_US.UTF- | =c/"gitlab-psql"               +
                     |             |          |             |             | "gitlab-psql"=CTc/"gitlab-psql"
 template1           | gitlab-psql | UTF8     | en_US.UTF- | en_US.UTF- | =c/"gitlab-psql"               +
                     |             |          |             |             | "gitlab-psql"=CTc/"gitlab-psql"
( rows)

进入client后：

命令都是可以Tab出来的，很牛B
gitlabhq_production=# UPDATE application_settings set signin_enabled=true;
UPDATE 

重启Gitlab:

这里因为启动的慢gitlab web报错出现：502 ，Whoops, GitLab is taking too much time to respond.

等待8080端口启动后，访问即可恢复：

tcp               127.0.0.1:          0.0.0.0:*               LISTEN      /unicorn master 

[root@gitlab-server ~]# gitlab-ctl restart
ok: run: gitlab-workhorse: (pid ) 1s
ok: run: logrotate: (pid ) 0s
ok: run: nginx: (pid ) 0s
ok: run: postgresql: (pid ) 1s
ok: run: redis: (pid ) 0s
ok: run: sidekiq: (pid ) 1s
ok: run: unicorn: (pid ) 0s