class iptables ($fileversion = 'default'){
        file { '/etc/network/if-pre-up.d/firewall':
                ensure => present,
                owner => 'root',
                group => 'root',
                mode => 755,
                content => "#!/bin/sh
/sbin/iptables-restore < /etc/iptables.firewall.rules",
        }
        $source = 'puppet:///iptables/default'
        if $fileversion == 'load-balancer' {
                $source = 'puppet:///iptables/loadbalancer'
        }
        elseif $fileversion == 'vpn' {
                $source = 'puppet:///iptables/vpn'
        }
        file { '/etc/iptables.firewall.rules':
                ensure => present,
                owner => 'root',
                group => 'root',
                mode => 755,
                source => $source,
        }
        exec { '/sbin/iptables-restore < /etc/iptables.firewall.rules':
                subscribe => File['/etc/iptables.firewall.rules'],
                refreshonly => true,
        }
}