一、添加任务计划

    vim /etc/puppet/mainfests/site.pp
    cron { 'ntp update':
            ensure => present,
            command => "ntpupdate ntp.time.com",
            user    => "root",
            minute  => "0",
            hour    => "0",
            monthday => "*",
            month    => '*',
            weekday  => '*',
    }

二、删除任务计划

    vim /etc/puppet/mainfests/site.pp
    cron { 'ntp update':
            ensure => absent,
            command => "ntpupdate ntp.time.com",
            user    => "root",
            minute  => "0",
            hour    => "0",
            monthday => "*",
            month    => '*',
            weekday  => '*',
    }