syndic是saltstack用来做集群部署的,一般结构如图:
syndic就相当于salt-master的master,可以实现通过管理salt-master来管理salt-minion节点
syndic的部署
1.在一个salt-master(server1)指定它的topmaster
[root@server1 ~]# vim /etc/salt/master
1058 syndic_master: 172.25.26.4
[root@server1 salt]# systemctl start salt-syndic
[root@server1 ~]# systemctl restart salt-master
2.新添加一个salt-master并指定它为topmater
[root@server4 2018]# yum install -y salt-master
[root@server4 2018]# vim /etc/salt/master
1054 order_masters: true ##开启topmaster
[root@server4 2018]# systemctl start salt-master
3.添加密钥
[root@server4 2018]# salt-key -L ##这里可能获取节点有些慢,多刷新几次就会出现
Accepted Keys:
Denied Keys:
Unaccepted Keys:
server1
Rejected Keys:
[root@server4 2018]# salt-key -A
The following keys are going to be accepted:
Unaccepted Keys:
server1
Proceed? [n/Y] Y
Key for minion server1 accepted.
4.测试查看
[root@server4 2018]# salt '*' test.ping
server2:
True
server3:
True
[root@server4 2018]# salt '*' cmd.run 'df -h'
server2:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rhel-root 17G 3.0G 15G 18% /
devtmpfs 486M 0 486M 0% /dev
tmpfs 497M 12K 497M 1% /dev/shm
tmpfs 497M 6.6M 490M 2% /run
tmpfs 497M 0 497M 0% /sys/fs/cgroup
/dev/sda1 1014M 139M 876M 14% /boot
tmpfs 100M 0 100M 0% /run/user/0
server3:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rhel-root 17G 4.4G 13G 26% /
devtmpfs 486M 0 486M 0% /dev
tmpfs 497M 12K 497M 1% /dev/shm
tmpfs 497M 51M 447M 11% /run
tmpfs 497M 0 497M 0% /sys/fs/cgroup
/dev/sda1 1014M 139M 876M 14% /boot
tmpfs 100M 0 100M 0% /run/user/0
测试查看,虽然server2和server3没有指定server4为他们的master节点,但server4仍然可以通过server1来控制server2和server3,实现了多级控制