puppet自动化之资源定义大收尾

exec命令管控资源

[root@centos7 ~]# cat exec.pp   执行密等的命令
exec{'mktemp':
    command => 'mktemp -d /tmp/dir.XXX',
    path => '/bin:/sbin:/usr/bin:/usr/sbin',
}
[root@centos7 ~]# cat exec.pp 
exec{'mktemp':
    command => 'mktemp -d /tmp/dir.XXX',
    path => '/bin:/sbin:/usr/bin:/usr/sbin',
}
exec{'mkdir':
    command => 'mkdir /tmp/mydir',
    path => '/bin:/sbin:/usr/bin:/usr/sbin',
#   create => '/tmp/mydir',
    unless => 'test -d /tmp/mydir',  条件是执行命令
}
[root@centos7 ~]# puppet apply -v exec.pp 第一次执行两个资源都执行
Notice: Compiled catalog for centos7.3-chenxi3 in environment production in 0.04 s
econdsInfo: Applying configuration version '1506281057'
Notice: /Stage[main]/Main/Exec[mktemp]/returns: executed successfully两个都执行
Notice: /Stage[main]/Main/Exec[mkdir]/returns: executed successfully
Notice: Finished catalog run in 0.08 seconds
[root@centos7 ~]# puppet apply -v exec.pp  第二次执行
Notice: Compiled catalog for centos7.3-chenxi3 in environment production in 0.04 seconds
Info: Applying configuration version '1506281512'
Notice: /Stage[main]/Main/Exec[mktemp]/returns: executed successfully
Notice: Finished catalog run in 0.08 seconds

cron 计划任务资源定义

Installs and manages cron jobs.  Every cron resource created by Puppet requires a command and at least one periodic attribute (hour, minute, month, monthday, weekday, or special).
            
            command：要执行的任务；
            ensure：present/absent；
            hour：
            minute:
            monthday:
            month:
            weekday：
            user：以哪个用户的身份运行命令
            target：添加为哪个用户的任务
            name：cron job的名称；
            
            示例：
[root@centos7 ~]# vim  ch.pp 
                cron{'timesync':
                    command => '/usr/sbin/ntpdate 172.16.0.1 &> /dev/null',
                    ensure  => present,
                    minute  => '*/3',
                    user    => 'root',
                }           
[root@centos7 ~]# puppet apply -v --noop ch.pp 
Notice: Compiled catalog for centos7.3-chenxi3 in environment production in 0.07 seconds
Info: Applying configuration version '1506282122'
Notice: /Stage[main]/Main/Cron[timesync]/ensure: current_value absent, should be present (noop)
Notice: Class[Main]: Would have triggered 'refresh' from 1 events
Notice: Stage[main]: Would have triggered 'refresh' from 1 events
Notice: Finished catalog run in 0.17 seconds
[root@centos7 ~]# puppet apply -v ch.pp 
Notice: Compiled catalog for centos7.3-chenxi3 in environment production in 0.05 seconds
Info: Applying configuration version '1506282266'
Notice: /Stage[main]/Main/Cron[timesync]/ensure: created
Notice: Finished catalog run in 0.08 seconds

[root@centos7 ~]# crontab -l
# HEADER: This file was autogenerated at 2017-09-25 03:44:27 +0800 by puppet.
# HEADER: While it can still be managed manually, it is definitely not recommended
.# HEADER: Note particularly that the comments starting with 'Puppet Name' should
# HEADER: not be deleted, as doing so could cause duplicate cron jobs.
# Puppet Name: timesync
*/3 * * * * /usr/sbin/ntpdate 172.16.0.1 &> /dev/null
[root@centos7 ~]# cat ch.pp 
cron{'timesync':
                    command => '/usr/sbin/ntpdate 172.16.0.1 &> /dev/null',
                    ensure  => absent,  删除计划任务的定义
                    minute  => '*/3',
                    user    => 'root',
                }

[root@centos7 ~]# puppet apply -v ch.pp 
Notice: Compiled catalog for centos7.3-chenxi3 in environment production in 0.05 s
econdsInfo: Applying configuration version '1506253646'
Notice: /Stage[main]/Main/Cron[timesync]/ensure: removed
Notice: Finished catalog run in 0.08 seconds