define add_user ($username, $uid, $groupname, $gid, $comment) {

            file { "/export/":
                   ensure => directory,
                   owner  => "root",
                   group  => "root",
                   mode   => 755,
            }

            file { "/export/home/":
                   ensure => directory,
                   owner  => "root",
                   group  => "root",
                   mode   => 755,
            }

            user { $username:
                    comment  => "$comment",
                    home     => "/home/export/$username",
                    shell    => "/bin/sh",
                    uid      => $uid,
                    system_user => $is_system_user,
                    manages_password => "yes",
                    password => $passwd
            }

            group { $groupname:
                    gid     => $gid,
                    require => user[$username]
            }

            file { "/export/home/$username/":
                    ensure  => directory,
                    owner   => $username,
                    group   => $username,
                    mode    => 750,
                    require => [ user[$username], group[$username] ]
            }

    }