Review of Puppet NTP

Posting an example which helps me remember what I learned about puppet a week ago; an NTP class which hasn't yet been converted into a module from Learning — Modules and Classes (Part One). I borrowed the HTML/CSS from puppetlabs.com.

      
    class ntp {
      case $operatingsystem {
        centos, redhat: { 
          $service_name = 'ntpd'
          $conf_file    = 'ntp.conf.el'
        }
        debian, ubuntu: { 
          $service_name = 'ntp'
          $conf_file    = 'ntp.conf.debian'
        }
      }
      
      package { 'ntp':
        ensure => installed,
      }
      
      service { 'ntp':
        name      => $service_name,
        ensure    => running,
        enable    => true,
        subscribe => File['ntp.conf'],
      }
      
      file { 'ntp.conf':
        path    => '/etc/ntp.conf',
        ensure  => file,
        require => Package['ntp'],
        source  => "/root/learning-manifests/${conf_file}",
      }
    }