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contrib-munin/plugins/bind/bind_

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2008-02-18 17:32:32 +01:00
#!/usr/bin/perl
#
# Copyright Jean-Samuel Reynaud <js.reynaud@free.fr>
# Licenced under GPL v2
#
# We use this script to produce graph with munin for dns requests
# This script must have his name start with bind_
# bind_ : Global bind statistic
# bind_test.com : Bind statistic for test.com zone
#
# "env.bind_stat_file" is the path to the bind statistic file
# (/var/cache/bind/named.stats by default).
#
# "env.bind_rndc" is the path to the rndc tool
# (/usr/sbin/rndc by default).
#
# Thanks for Benjamin Pineau for perl cleaning and correction in non root
# running
# Thanks to Immanuel Klinkenberg for adding config parameter by using munin config
#
# Magic markers
#%# family=auto
#%# capabilities=autoconf
use strict;
use warnings;
# change those to reflect your bind configuration
# stat file
my $stat_file = # DB directory
defined $ENV{'bind_stat_file'} ? $ENV{'bind_stat_file'} : '/var/cache/bind/named.stats';
# rndc path
my $rndc = # rndc path
defined $ENV{'bind_rndc'} ? $ENV{'bind_rndc'} : '/usr/sbin/rndc';
my $lst = { "success" => 1,
"referral" => 1,
"nxrrset" => 1,
"nxdomain" => 1,
"recursion" => 1,
"failure" => 1};
my $domain = $0;
$domain =~ s/^.*bind_([\w\d\._\-]*)$/$1/;
# Parse the statistic file
sub parseFile {
my $dom = shift @_;
open(IN,"<$stat_file") or die "Can't open $stat_file : $!";
while (<IN>) {
chomp;
my ($type,$count,$zone) = split(/ /,$_);
$zone = defined($zone) ? $zone : "";
if ($zone eq $dom) {
if (defined $lst->{$type}) {
# only keep the latest occurrence for each value
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$lst->{$type} = $count;
}
}
}
close(IN);
printf "%s.value %u\n", $_, $lst->{$_} foreach (keys %$lst);
}
# Config mode
if ( defined($ARGV[0]) && $ARGV[0] eq "config" ) {
printf "graph_title Dns requests %s\n",($domain eq "" ? " all domains":$domain);
printf "graph_vlabel requests/s\n";
printf "graph_category dns\n";
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printf "graph_info This graph display dns requests for %s\n",($domain eq "" ? " all domains":$domain);
printf "success.label Success\n";
printf "success.type COUNTER\n";
printf "referral.label Referral\n";
printf "referral.type COUNTER\n";
printf "nxrrset.label Nx RR set\n";
printf "nxrrset.type COUNTER\n";
printf "nxdomain.label NX domain\n";
printf "nxdomain.type COUNTER\n";
printf "recursion.label Recursion\n";
printf "recursion.type COUNTER\n";
printf "failure.label Failure\n";
printf "failure.type COUNTER\n";
exit 0;
}
if ( defined($ARGV[0]) && $ARGV[0] eq "autoconf" ) {
if (! -f $stat_file) {
printf "Unable to file bind stat file on %s",$stat_file;
exit 1;
}
if (! -f $rndc) {
printf "Unable to file rndc tool (configured : %s)",$rndc;
exit 1;
}
exit 0;
}
# Remove old stat file
unlink ($stat_file);
# Ask to bind to build new one
`$rndc stats`;
# Parse the stat file and return result
parseFile($domain);