ss bareos::install::storage {

  # Common packages
  package { $bareos::params::package_storage:            ensure =&gt; installed; }
  package { $bareos::params::package_storage_fifo:       ensure =&gt; installed; }

  # The package `bareos-storage-glusterfs` is not available for Debian 7,
  # cf. http://doc.bareos.org/master/html/bareos-manual-main-reference.html#x1-463000B.1.1
  if ($::osfamily == &#39;Debian&#39;) and ($::lsbmajdistrelease == &#39;7&#39;) {
    package { $bareos::params::package_storage