gistfile1.txt

      exec { 'apt-get clean':
        unless => "mount | grep -q ${apt_archives_dir}",
        before => Mount[$apt_archives_dir],
      }

      mount { $apt_archives_dir:
        ensure  => 'mounted',
        device  => 'tmpfs',
        fstype  => 'tmpfs',
        options => $apt_archives_options,
        dump    => '0',
        pass    => '0',
        require => Exec['apt-get clean'],
      }
    }