SaltSack 自动化运维2

1.SaltStack数据系统

Grains：存储在minion端，启动时收集信息，静态数据，重启时才会重新收集，

a.应用场景：信息查询，

[[email protected] salt]# salt ‘salt-master‘ grains.ls         # 显示ls

[[email protected] salt]# salt ‘salt-master‘ grains.items    # 显示所有

[[email protected] salt]# salt ‘salt-master‘ grains.get fqdn
salt-master:
    salt-master.xiao.com
[[email protected] salt]# salt ‘salt-master‘ grains.get server_id
salt-master:
    894500124

[[email protected] salt]# salt ‘salt-master‘ grains.get ip_interfaces:eth0
salt-master:
    - 192.168.2.12
    - fe80::20c:29ff:fe99:4d5e

b.匹配minion

[[email protected] salt]# salt -G os:CentOS cmd.run ‘w‘
salt-master:
     05:26:01 up  1:07,  1 user,  load average: 0.00, 0.00, 0.00
    USER     TTY      FROM              [email protected]   IDLE   JCPU   PCPU WHAT
    root     pts/0    192.168.2.1      04:19    0.00s  0.80s  0.55s /usr/bin/python
salt-minion:
     05:36:34 up  1:07,  1 user,  load average: 0.00, 0.00, 0.00
    USER     TTY      FROM              [email protected]   IDLE   JCPU   PCPU WHAT
    root     pts/0    192.168.2.1      04:30   25:21   0.15s  0.15s -bash

自定义grains，

[[email protected] salt]# vim /etc/salt/minion   # 打开注释
88 grains:
 89   roles:
 90     - webserver
 91     - memcache
[[email protected] salt]# salt -G ‘roles:memcache‘ cmd.run ‘echo hehe‘   # 在memcached的机器上执行echo hehe
salt-master:
    hehe

或者在vim /etc/salt/grains建立

[[email protected] salt]# vim /etc/salt/grains        #　自定义建立一个grains的nginxweb规则
nginxweb: nginx
~
[[email protected] salt]# /etc/init.d/salt-minion restart
[[email protected] salt]# salt -G nginxweb:nginx cmd.run ‘w‘  #　查找minion匹配到有nginxweb:nginx的机器执行w命令
salt-master:
     05:39:53 up  1:21,  1 user,  load average: 0.08, 0.02, 0.01
    USER     TTY      FROM              [email protected]   IDLE   JCPU   PCPU WHAT
    root     pts/0    192.168.2.1      04:19    1.00s  0.85s  0.53s /usr/bin/python
[[email protected] salt]# vim /srv/salt/top.sls      # 建立高级sls命令
base:
  ‘nginxweb:nginx‘:                                 # 关联上面grain中自定义的规则
    - match: grain
    - apache
[[email protected] salt]# salt ‘*‘ state.hightstate  # 执行