salt-syndic分布式架构

Posted 2021-08-25 卑微小胡

salt-syndic架构图

salt-syndic的优劣势.
优势：

• 可以通过syndic实现更复杂的salt架构
• 减轻master的负担

劣势：

• syndic的/srv目录下的salt和pillar目录内容要与最顶层的master下的一致，所以要进行数据同步，同步方案同salt-master高可用
• 最顶层的master不知道自己有几个syndic，它只知道自己有多少个minion，并不知道这些minion是由哪些syndic来管理的
  salt-syndic部署

环境说明

主机IP	角色	安装的应用
192.168.96.129	Master	salt-master
192.168.96.133	Syndic	salt-master salt-syndic
192.168.96.134	Minion1	salt-minion
192.168.69.132	Minion2	salt-minion

安装salt-master与salt-syndic

在192.168.96.133上安装salt-master与salt-syndic，安装前请自行配置yum源

[root@syndic ~]# yum -y install salt-master salt-syndic

配置master

修改master的master配置文件

• 取消注释order_master
• 将order_master的值设为True

[root@master ~]# vim /etc/salt/master
.....此处省略N行
# masters' syndic interfaces.
order_masters: True

[root@master ~]# systemctl enable salt-master
[root@master ~]# systemctl restart salt-master

配置syndic

修改syndic所在主机的master配置文件

• 取消注释syndic_master
• 将syndic_master的值设为master的IP

[root@syndic ~]# vim /etc/salt/master
.....此处省略N行
syndic_master: 192.168.96.129

[root@syndic ~]# systemctl enable salt-master
Created symlink from /etc/systemd/system/multi-user.target.wants/salt-master.service to /usr/lib/systemd/system/salt-master.service.
[root@syndic ~]# systemctl enable salt-syndic
Created symlink from /etc/systemd/system/multi-user.target.wants/salt-syndic.service to /usr/lib/systemd/system/salt-syndic.service.
[root@syndic ~]# systemctl restart salt-master
[root@syndic ~]# systemctl restart salt-syndic

配置minion

配置minion，将master指向syndic所在主机

[root@minion ~]# vim /etc/salt/minion
.....此处省略N行
master: 192.168.96.133

[root@minion ~]# systemctl restart salt-minion
[root@minion ~]# systemctl enable salt-minion
Created symlink from /etc/systemd/system/multi-user.target.wants/salt-minion.service to /usr/lib/systemd/system/salt-minion.service.

在所有minion上做同样的操作，注意，要设置minion配置文件中的id参数，指向minion自身的ip地址或主机名，必须能够唯一标识minion本机。

在syndic上接受minion主机的key

[[root@Syndic ~]# salt-key -A
The following keys are going to be accepted:
Unaccepted Keys:
minion1
minion2
Proceed? [n/Y] y
Key for minion minion1 accepted.
Key for minion minion2 accepted.
[root@Syndic ~]# salt-key -L
Accepted Keys:
minion1
minion2
Denied Keys:
Unaccepted Keys:
Rejected Keys:

在master上接受syndic主机的key

[root@master ~]# salt-key -L
Accepted Keys:
Denied Keys:
Unaccepted Keys:
Syndic
Rejected Keys:
[root@master ~]# salt-key -A
The following keys are going to be accepted:
Unaccepted Keys:
Syndic
Proceed? [n/Y] y
Key for minion Syndic accepted.
[root@master ~]# salt-key -L
Accepted Keys:
Syndic
Denied Keys:
Unaccepted Keys:
Rejected Keys:
[root@master ~]# salt-key
Accepted Keys:
Syndic
Denied Keys:
Unaccepted Keys:
Rejected Keys:

在master上执行模块或状态检验有几个minion应答

[root@master ~]# salt '*' test.ping
minion2:
    True
minion1:
    True