module-apt/manifests/dist_upgrade.pp

class apt::dist_upgrade {

  if $apt::disable_update == false {
    include apt::update
  }

  $req = $apt::disable_update ? {
    true    => undef,
    default => Exec['apt_updated'],
  }

  exec { 'apt_dist-upgrade':
    command     => '/usr/bin/apt-get -q -y -o \'DPkg::Options::=--force-confold\' dist-upgrade',
    refreshonly => true,
    require     => $req
  }

}