gistfile1.txt

define ip_local_reserved_ports (
  $reserved_ports = [],
) {

 $all_reserved_ports += $reserved_ports

 $joined_ports = join($all_reserved_ports, ",")

 file_line { 'joined_ports_line':
    line   => "net.ipv4.ip_local_reserved_ports = ${joined_ports}",
    path   => "/etc/sysctl.conf",
  }

}