Scientific Linux 6
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CommandModule2011/05/14

 
Basic usage of CommandModule. It's possible to do most operations with this module.
[1] Run 'yum update' on all minions.
[root@certmaster ~]#
func "*" call command run "yum -y update" | sed 's/\\n/\n/g'
('minion02',
 [0,
  'Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * sl: ftp.riken.jp
 * sl-security: ftp.riken.jp
Setting up Update Process
No Packages marked for Update
',
  ''])
('minion01',
 [0,
  'Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * sl: ftp1.scientificlinux.org
 * sl-security: ftp1.scientificlinux.org
Setting up Update Process
No Packages marked for Update
',
  ''])
[2] Execute 'ls -l /root' on all minions.
[root@certmaster ~]#
func "*" call command run "ls -l /root" | sed 's/\\n/\n/g'
('minion02',
 [0,
  'total 20
-rw-------. 1 root root 1274 Mar 14 21:58 anaconda-ks.cfg
-rw-r--r--. 1 root root 8681 Mar 14 21:58 install.log
-rw-r--r--. 1 root root 3094 Mar 14 21:56 install.log.syslog
',
  ''])
('minion01',
 [0,
  'total 20
-rw-------. 1 root root 1274 Mar 14 21:58 anaconda-ks.cfg
-rw-r--r--. 1 root root 8681 Mar 14 21:58 install.log
-rw-r--r--. 1 root root 3094 Mar 14 21:56 install.log.syslog
',
  ''])
[3] Execute 'cat /etc/passwd' on a minion.
[root@certmaster ~]#
func "minion01" call command run "cat /etc/passwd" | sed 's/\\n/\n/g'
('minion01',
 [0,
  'root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
saslauth:x:499:499:"Saslauthd user":/var/empty/saslauth:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
fermi:x:500:500::/home/fermi:/bin/bash
ntp:x:38:38::/etc/ntp:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
smolt:x:498:498:Smolt:/usr/share/smolt:/sbin/nologin
',
  ''])
[4] Execute 'touch test.txt' on all minion.
[root@certmaster ~]#
func "*" call command run "touch /root/test.txt"

('minion02', [0, '', ''])
('minion01', [0, '', ''])
[root@certmaster ~]#
func "*" call command run "ls -l /root" | sed 's/\\n/\n/g'
('minion02',
 [0,
  'total 20
-rw-------. 1 root root 1274 Mar 14 21:58 anaconda-ks.cfg
-rw-r--r--. 1 root root 8681 Mar 14 21:58 install.log
-rw-r--r--. 1 root root 3094 Mar 14 21:56 install.log.syslog
-rw-------  1 root root    0 May 14 23:04 test.txt
',
  ''])
('minion01',
 [0,
  'total 20
-rw-------. 1 root root 1274 Mar 14 21:58 anaconda-ks.cfg
-rw-r--r--. 1 root root 8681 Mar 14 21:58 install.log
-rw-r--r--. 1 root root 3094 Mar 14 21:56 install.log.syslog
-rw-------  1 root root    0 May 14 23:04 test.txt
',
  ''])
[5] Execute Changing owner and permission for test.txt on all minion.
[root@certmaster ~]#
func "*" call command run "chown nobody. /root/test.txt;chmod 600 /root/test.txt"

('minion02', [0, '', ''])
('minion01', [0, '', ''])
[root@certmaster ~]#
func "*" call command run "ls -l /root/test.txt" | sed 's/\\n/\n/g'
('minion02',
 [0, '-rw------- 1 nobody nobody 0 May 14 23:04 /root/test.txt
', ''])
('minion01',
 [0, '-rw------- 1 nobody nobody 0 May 14 23:04 /root/test.txt
', ''])
[6] Restart ntpd on all minions.
[root@certmaster ~]#
func "*" call command run "service ntpd restart" | sed 's/\\n/\n/g'
('minion02',
 [0, 'Shutting down ntpd: [  OK  ]
Starting ntpd: [  OK  ]
', ''])
('minion01',
 [0, 'Shutting down ntpd: [  OK  ]
Starting ntpd: [  OK  ]
', ''])
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