puppet项目之crond与时间同步配置篇

puppet项目实施计划之（crond与时间同步配置篇）用puppet管理cron,可以为N台服务器批量添加cron作业。如定时同步时间服务器的脚本。
一、服务端
服务端操作
1、编写脚本，建创目录结构
cd/etc/puppet
midair-p modules/cron/manifests/
2、vi addcron.pp
classcron::addcron {
cron { ntpdate:
command =>"/usr/sbin/ntpdate pool.ntp.org",
user => root,
hour => '0',
minute => '0'
}
}
3、编写base.pp
功能说明:安装cron包并启动服务
vibase.pp
classcron::base {
package { cron:
name => $operatingsystem ? { #facter
ubuntu => "cron",
debian => "cron",
redhat => "cron",
centos => "cron",
},
ensure => present,
}
service { crond:
name => $operatingsystem ? { ubuntu => "cron",
debian => "cron",
redhat => "crond",
centos => "crond",
},
ensure => running,
enable => true,
pattern => cron,
require =>Package["cron"],
}
}

4、编写crontabs.pp
功能说明：安装crontabs包
vicrontabs.pp
classcron::crontabs {
package { crontabs:
name => $operatingsystem ? {
redhat => "crontabs",
centos => "crontabs",
},
ensure => present,
}
}

5、编写init.pp
功能说明:初始化文件
viinit.pp

classcron {
case $operatingsystem {
centos: {
include cron::base
include cron::crontabs
include cron::addcron
}
redhat: {
include cron::base
include cron::crontabs
include cron::addcron
}
debian: { include cron::base }
ubuntu: { include cron::base }
freebsd: { }
}
}

6、编写主manifests文件实现让客户端安装cron和添加一条crontab作业。
cd/etc/puppet/mainfests
vi modules.pp #加载cron模块
import"cron"
vinodes.pp #客户端节点管理文件
node'client176.puppet.com'{
include cron
}
visite.pp #加载modules.pp 和nodes.pp
import"modules.pp"
import"nodes.pp"
二、客户端
1、在客户端连接服务器，看能否同步
[root@agent~]# puppet agent --server master.kylinyunwei.com --test
notice:Ignoring --listen on onetime run
info:Caching catalog for agent.kylinyunwei.com
info:Applying configuration version '1414049769'
err:/Stage[main]/Cron::Base/Package[cron]/ensure: change from absent to presentfailed: Execution of '/usr/bin/yum -d 0 -e 0 -y install cron' returned 1:Error: Nothing to do

notice:/Stage[main]/Cron::Base/Service[crond]: Dependency Package[cron] has failures:true
warning:/Stage[main]/Cron::Base/Service[crond]: Skipping because of failed dependencies
notice:/Stage[main]/Cron::Addcron/Cron[ntpdate]/ensure: created
notice:Finished catalog run in 1.27 seconds
出现created则为成功
2、在客户端查看计划任务
[root@agent~]# crontab -l
#HEADER: This file was autogenerated at Thu Oct 23 15:36:12 +0800 2014 bypuppet.
#HEADER: While it can still be managed manually, it is definitely notrecommended.
#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: ntpdate
1*/4 * * * /usr/sbin/ntpdate time-b.timefreq.bldrdoc.gov
3、出现如上所示则说明成功同步，可以看到客户端的crontab改变了。