saltstack老的master主机性能不行，如何迁移到新主机

注意问题：

一旦有冲突，客户端会重启。

客户端上minion一旦发生变化，服务会自动停掉

保证minion正常运行，又要迁移过去。

1、 新准备一台主机

2、 安装master

yum install -y epel-release

yum install -y salt-master salt-minion

3、 打包老master目录下的pki目录，传到新master目录

[root@saltsalt]# tar -cvf pkitar.gzpki

pki/

pki/master/

pki/master/minions_rejected/

pki/master/minions_rejected/salt.wolf.com

pki/master/minions_pre/

pki/master/minions_pre/salt.wolf.com

pki/master/master.pub

pki/master/master.pem

pki/master/minions_autosign/

pki/master/minions_autosign/salt.wolf.com

pki/master/minions/

pki/master/minions/slave01.wolf.com

pki/master/minions/salt.wolf.com

pki/master/minions/slave02.wolf.com

pki/master/minions_denied/

pki/master/minions_denied/salt.wolf.com

pki/minion/

pki/minion/minion.pem

pki/minion/minion_master.pub

pki/minion/minion.pub

[root@salt salt]#ls

master minion minion.d minion_id pki pkitar.gz

[root@salt salt]# salt '*' cmd.run 'cat/etc/issue'

slave01.wolf.com:

CentOS release 6.8 (Final)

Kernel \\r on an \\m

slave02.wolf.com:

CentOS release 6.8 (Final)

Kernel \\r on an \\m

salt.wolf.com:

CentOS release 6.5 (Final)

Kernel \\r on an \\m

[root@salt salt]# salt '*' cmd.run 'cat/etc/hosts'

slave01.wolf.com:

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.3.49 www.wolf.com wolf.com

192.168.3.49 bbs.wolf.com

192.168.3.49 blog.wolf.com

192.168.3.201 salt.wolf.com salt nginx

192.168.3.49 slave01.wolf.com slave01

192.168.3.52 slave02.wolf.com slave02

salt.wolf.com:

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.3.201 salt.wolf.com salt node1

192.168.3.49 slave01.wolf.com slave01

192.168.3.52 slave02.wolf.com slave02

slave02.wolf.com:

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.3.52 bbs.wolf.com

192.168.3.201 salt.wolf.com salt

192.168.3.49 slave01.wolf.com slave01

192.168.3.52 slave02.wolf.com slave02

[root@salt salt]# salt '*' cmd.run 'grep salt/etc/hosts'

slave01.wolf.com:

192.168.3.201 salt.wolf.com salt nginx

salt.wolf.com:

192.168.3.201 salt.wolf.com salt node1

slave02.wolf.com:

192.168.3.201 salt.wolf.com salt

[root@salt salt]# scp pki.tar.gz192.168.3.107:/etc/salt/

The authenticityof host '192.168.3.107 (192.168.3.107)' can't be established.

RSA keyfingerprint is 50:d1:85:98:0c:9f:b8:04:9e:01:c9:94:79:9e:a6:f1.

Are you sure youwant to continue connecting (yes/no)? yes

Warning: Permanentlyadded '192.168.3.107' (RSA) to the list of known hosts.

root@192.168.3.107'spassword:

pki.tar.gz 100% 20KB 20.0KB/s 00:00

4、新master上操作

[root@mysql salt]#tar -xvf pki.tar.gz

pki/

pki/master/

pki/master/minions_rejected/

pki/master/minions_rejected/salt.wolf.com

pki/master/minions_pre/

pki/master/minions_pre/salt.wolf.com

pki/master/master.pub

pki/master/master.pem

pki/master/minions_autosign/

pki/master/minions_autosign/salt.wolf.com

pki/master/minions/

pki/master/minions/slave01.wolf.com

pki/master/minions/salt.wolf.com

pki/master/minions/slave02.wolf.com

pki/master/minions_denied/

pki/master/minions_denied/salt.wolf.com

pki/minion/

pki/minion/minion.pem

pki/minion/minion_master.pub

pki/minion/minion.pub

[root@mysql salt]#ls

master minion pki pki.tar.gz

[root@mysql salt]#cd pki

[root@mysql pki]#ls

master minion

[root@mysql pki]# /etc/init.d/salt-master start

Startingsalt-master daemon: [ OK ]

5、Old master上操作

修改old master地址

[root@salt salt]# salt '*' cmd.run "sed -i's/201/107/' /etc/hosts"

slave01.wolf.com:

slave02.wolf.com:

salt.wolf.com:

再查看

[root@salt salt]# salt '*' cmd.run 'grep salt/etc/hosts'

slave02.wolf.com:

192.168.3.107 salt.wolf.com salt

salt.wolf.com:

192.168.3.107 salt.wolf.com salt node1

slave01.wolf.com:

192.168.3.107 salt.wolf.com salt nginx

重启服务

salt '*' service.restartsalt-minion

[root@salt salt]# salt '*' service.restartsalt-minion

slave01.wolf.com:

True

slave02.wolf.com:

True

salt.wolf.com:

True

重启服务，他只判断，是否有key，如果有就启动，没有就生成

6、 老master上修改配置文件和hosts文件的ip

7、、 重启服务

8、新master’上查看

. [root@mysql salt]# salt '*' test.ping

slave02.wolf.com:

True

slave01.wolf.com:

True

salt.wolf.com