When setting a key that contains multiple values, use a tab to separate the
  values:
  
  node "mynode" inherits ... {
    sysctl::value { 'net.ipv4.tcp_rmem':
        value => "4096\t131072\t131072",
    }
  }

  To avoid duplication the sysctl::value calls multiple settings can be 
  managed like this:

  $my_sysctl_settings = {
    "net.ipv4.ip_forward          => { value => 1 },
    "net.ipv6.conf.all.forwarding => { value => 1 },
  }

  # Specify defaults for all the sysctl::value to be created (
  $my_sysctl_defaults = {
    require => Package['aa']
  }

  create_resources(sysctl::value,$my_sysctl_settings,$my_sysctl_defaults)

  The sysctl binary needs to be found in your Path.
  It is preferred that you set your exec path globally. This is usually done
  in site.pp and would look something like this (adjust for your environment):

  # Set a site-wide global path so we don't have to explicitly specify a path
  # for each exec.
  Exec { path => '/usr/bin:/usr/sbin/:/bin:/sbin' }

= License

 Copyright (C) 2011 Immerda Project Group
 Author mh <mh@immerda.ch>
 Modified by Nicolas Zin <nicolas.zin@savoirfairelinux.com>
 Licence: GPL v2