do everything once keyed on local file

[pxelator] / lib / PXElator / network.pm

diff --git a/lib/PXElator/network.pm b/lib/PXElator/network.pm
index 1ba155d..ecaf8e0 100644 (file)
--- a/lib/PXElator/network.pm
+++ b/lib/PXElator/network.pm
@@ -6,19 +6,54 @@ use strict;
 use File::Slurp;
 
 use server;
+use ip;
 
 sub ifconfig {
        my $dev = shift;
        `/sbin/ifconfig $dev`
 }
 
+sub setup {
+
+       if ( my $dev = $ENV{DEV} ) {
+               warn "W: running under device $dev, not configuring network\n";
+               return;
+       }
+
+       my $ifconfig = ifconfig('virtual');
+       if ( $ifconfig !~ m{UP} ) {
+               system "brctl addbr virtual";
+               system "brctl setfd virtual 0";
+               system("/sbin/ifconfig virtual $server::ip netmask $server::netmask") == 0 || warn "W: $!";
+       } else {
+               warn "using existing virtual configuration\n$ifconfig\n";
+       }
+       if ( my $dev = ip::default_route_dev() ) {
+               system "sudo sysctl -w net.ipv4.ip_forward=1";
+               my $network = ip::from_int( ip::to_int($server::ip) & ip::to_int($server::netmask) );
+               warn "# network $network";
+               system "sudo iptables -t nat -L POSTROUTING -n | grep $network || sudo iptables -t nat -A POSTROUTING -s $server::ip/$server::netmask -o $dev -j MASQUERADE";
+               warn "masquarade to $dev";
+       }
+}
+
 sub tap {
 
+       if ( my $dev = $ENV{DEV} ) {
+               warn "W: running under device $dev, not configuring tap0\n";
+               return;
+       }
+
+       if ( $server::ip !~ m{^172} ) {
+               warn "W: server ip mismetch, not configuring tap0\n";
+               return;
+       }
+
        my $interfaces = read_file '/etc/network/interfaces';
 
        if ( $interfaces !~ m{tap0}s ) {
 
-               system "sudo apt-get install vde2";
+               system "sudo apt-get install -y vde2";
 
                write_file '/tmp/interfaces', qq{