-
-
Save justyns/3951412 to your computer and use it in GitHub Desktop.
Perl libvirt net-edit with dhcp reload
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/perl -w | |
# Author: Konrad "morsik" Mosoń <mosonkonrad@gmail.com> | |
# linked here: http://wiki.libvirt.org/page/Networking#Applying_modifications_to_the_network | |
use strict; | |
use warnings; | |
my $net = $ARGV[0]; | |
if (!defined($net)) | |
{ | |
print "Usage: $0 <network>\n"; | |
exit(1); | |
} | |
system('virsh', 'net-edit', $net); | |
my $re_mac = '[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}'; | |
my $re_host = '[a-zA-Z0-9.-_]+'; | |
my $re_ip4 = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'; | |
# format: <host mac='de:ad:be:ef:00:01' name='www.libvirt.org' ip='176.31.99.103' /> | |
my $dhcpconf = ""; | |
open(NET, "/etc/libvirt/qemu/networks/$net.xml"); | |
foreach (<NET>) | |
{ | |
if (/\s*<host\s+mac='($re_mac)'\s+name='($re_host)'\s+ip='($re_ip4)'\s*\/>/) | |
{ | |
$dhcpconf .= "$1,$3,$2\n"; | |
} | |
} | |
close(NET); | |
open(DHCP, ">", "/var/lib/libvirt/dnsmasq/$net.hostsfile"); | |
print(DHCP $dhcpconf); | |
close(DHCP); | |
print "\033[1;32m>>\033[1;37m reloading dnsmasq...\033[0m\n"; | |
my $pid; | |
open(DHCPPID, "/var/run/libvirt/network/$net.pid"); | |
my @dhcppid = <DHCPPID>; | |
if ($dhcppid[0] =~ /([0-9]+)/) | |
{ | |
$pid = $1; | |
} | |
close(DHCPPID); | |
system('kill', '-HUP', $pid); | |
print "\033[1;32m!!\033[1;37m done!\033[0m\n"; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment