mysql - 如何使用 ansible 授予 MySQL 服务器管理权限(SUPER，RELOAD ...)？

Question

有没有办法使用 Ansible mysql_user 模块(或使用任何其他模块)授予 MySQL 管理权限？我想为用户设置 SUPER、RELOAD 和 SHOW DATABASES 权限以及其他一些特定于数据库的权限。

以下基本设置对我来说效果很好:

- name: Set user privileges
  mysql_user:
    user={{ mysql_user }}
    password={{ mysql_password }}
    state=present
    priv={{ item }}
  with_items:
    - 'somedatabase.*:ALL'
    - 'someotherdatabase.*:ALL'

...结果:

TASK: [db | Set user privileges]
**********************************************
ok: [dbuser] => (item=somedatabase.*:ALL)
ok: [dbuser] => (item=someotherdatabase.*:ALL)

---

以下设置一直显示“已更改”并且特权不是人们所期望的:

- name: Set user privileges
  mysql_user:
    user={{ mysql_user }}
    password={{ mysql_password }}
    state=present
    priv={{ item }}
  with_items:
    - '*.*:SUPER,RELOAD,SHOW\ DATABASES'
    - 'somedatabase.*:ALL'
    - 'someotherdatabase.*:ALL'

(重复)运行:

TASK: [db | Set user privileges]
**********************************************
changed: [dbuser] => (item=*.*:SUPER,RELOAD,SHOW\ DATABASES)
changed: [dbuser] => (item=somedatabase.*:ALL)
ok: [dbuser] => (item=someotherdatabase.*:ALL)

结果:

mysql> show grants for 'dbuser'@'localhost';
+---------------------------------------------------------------------------------------------------------------+
| Grants for dbuser@localhost                                                                                   |
+---------------------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'dbuser'@'localhost' IDENTIFIED BY PASSWORD '*2046D2DDAE359F311435E8B4D3776EFE13FB584C' |
| GRANT ALL PRIVILEGES ON `somedatabase`.* TO 'dbuser'@'localhost'                                              |
| GRANT ALL PRIVILEGES ON `someotherdatabase`.* TO 'dbuser'@'localhost'                                         |
+---------------------------------------------------------------------------------------------------------------+
3 rows in set (0.00 sec)

有谁知道如何:

1. 设置SUPER、RELOAD 和SHOW DATABASE 管理员。特权？
2. 使配置幂等？

Answer 1

终于找到了优雅的解决方案!首先，权限应该在某处定义为列表:

$ cat group_vars/dbservers
mysql_privileges:
  - 'somedatabase.*:ALL'
  - 'someotherdatabase.*:ALL'
  - '*.*:SUPER,RELOAD,SHOW\ DATABASES'

然后 mysql_user 插件不需要附加权限，只需使用 documentation 中提到的权限字符串即可采用以下格式:mydb.*:INSERT,UPDATE/anotherdb.*:SELECT/yetanotherdb.*:ALL.

唯一的技巧是如何将列表转换为字符串:

- name: Set user privileges
  mysql_user:
    user={{ mysql_user }}
    password={{ mysql_password }}
    state=present
    priv={{ mysql_privileges|join('/') }}

任务的可重复运行不再显示已更改:

TASK: [db | Set user privileges]
**********************************************
ok: [dbuser]