Saltsack automatic operation and maintenance 2

1.SaltStack Data System

Grains: Stored on the minion side, collect information at startup, static data, and re-collect it when it restarts.

A. Application scenario: Information query,

[[email protected] salt]# Salt ' salt-master ' grains.ls         # show Ls[[email protected] salt]# salt ' salt-master ' Grains.item S    # Show all [[email protected] salt]# Salt ' salt-master ' grains.get FQDN  salt-master:    salt-master.xiao.com[[ Email protected] salt]# Salt ' salt-master ' grains.get server_idsalt-master:    894500124[[email protected] salt]# salt ' Salt-master ' grains.get ip_interfaces:eth0salt-master:    -192.168.2.12    -fe80::20c:29ff:fe99:4d5e

B. Matching 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    Root     pts/0    192.168.2.1      04:19    0.00s  0.80s  0.55s/usr/bin/pythonsalt-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

Custom Grains,

[[email protected] salt]# vim/etc/salt/minion   # Open Comment grains:89   roles:90     -webserver-     Memcach E[[email protected] salt]# salt-g ' roles:memcache ' cmd.run ' echo hehe '   # perform echo memcached on Hehesalt-master:
   hehe

or set up in Vim/etc/salt/grains

[[email protected] salt]# vim/etc/salt/grains        # Custom Create a grains nginxweb rule nginxweb:nginx~                                                                                              [[email protected]　salt]#/etc/init.d/salt-minion restart[[email protected] salt]# salt-g nginxweb:nginx cmd.run ' W '  # Find minion matches to a machine with Nginxweb:nginx execute w command 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      # Build Advanced SLS Command base:  ' Nginxweb:nginx ':                                 # Associate the custom rule in grain above    -match:grain    -Apache [[email protected] salt]# Salt ' * ' state.hightstate  # Execute

Saltsack automatic operation and maintenance 2