class mon {

  package { 'munin-node': ensure => installed }

  exec { 'update munin-node.conf':
    require => Package['munin-node'],
    command => "sed -i '/allow ^127/ c\allow ^205\\\.186\\\.154\\\.24$' /etc/munin/munin-node.conf && touch /etc/munin/.allowip.done",
    creates => '/etc/munin/.allowip.done',
    notify  => Service['munin-node'],
  }

  service { 'munin-node':
    ensure  => running,
    require => Package['munin-node'],
  }

}