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contrib-munin/plugins/postfix/postfix_mailstats

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2008-09-04 10:58:02 +02:00
#! /usr/bin/perl
# Copyright (C) 2008 Joey Schulze <joey@infodrom.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 dated June, 1991.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
# Rewrite of the postfix_mailstats plugin with Munin::Plugin
# Source: http://www.infodrom.org/Infodrom/tools/munin.html
# Supported configuration:
#
# [postfix_mailstats]
# user root
# group adm
# env.logdir /var/log
# env.logfile mail.log
use strict;
use warnings;
use Munin::Plugin;
my $LOGDIR = $ENV{'logdir'} || '/var/log';
my $LOGFILE = $ENV{'logfile'} || 'mail.log';
my $logfile = $LOGDIR .'/'. $LOGFILE;
my $delivered;
my %rejects;
sub autoconf
{
if (-d $LOGDIR) {
if (-f $logfile) {
if (open(my $f, $logfile)) {
while (<$f>) {
if (m,postfix/smtpd\[\d+\]: ,) {
close $f;
print "yes\n";
exit 0;
}
}
print "no (no smtpd logs in logfile)\n";
close $f;
} else {
print "no (logfile not readable)\n";
}
} else {
print "no (logfile not found)\n";
}
} else {
print "no (could not find logdir)\n";
}
exit 1;
}
sub config
{
print "graph_title Postfix message throughput\n";
print "graph_args --base 1000 -l 0\n";
print "graph_vlabel mails / \${graph_period}\n";
print "graph_scale no\n";
print "graph_total Total\n";
print "graph_category mail\n";
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print "delivered.label delivered\n";
print "delivered.type ABSOLUTE\n";
print "delivered.draw AREA\n";
print "delivered.min 0\n";
foreach my $code (sort keys %rejects) {
my $name = clean_fieldname('reject ' . $code);
printf "%s.label reject %d\n", $name, $code;
printf "%s.type ABSOLUTE\n", $name;
printf "%s.draw STACK\n", $name;
printf "%s.min 0\n", $name;
}
exit 0;
}
sub parse
{
my $logfile = shift;
my $pos = shift;
my ($log,$rotated) = tail_open $logfile, $pos;
while (<$log>) {
if (m,.* postfix/smtpd\[\d+\]: NOQUEUE: reject: [^:]+: (\d+) .*,) {
$rejects{$1}++;
next;
} elsif (m/qmgr.*from=.*size=[0-9]*/) {
$delivered++;
next;
}
}
return tail_close $log;
}
autoconf if $#ARGV > -1 && $ARGV[0] eq "autoconf";
my @state_vector = restore_state;
my $pos = shift @state_vector || 0;
my $time = shift @state_vector;
$delivered = shift @state_vector || 0;
%rejects = @state_vector;
config if $#ARGV > -1 && $ARGV[0] eq "config";
if (defined $time) {
if ($time < time-(60*5)+15) {
$delivered = 0;
$rejects{$_} = 0 foreach keys %rejects;
$pos = parse $logfile, $pos;
save_state $pos, time, $delivered, %rejects;
}
} else {
# Prevent start peak
$pos = (stat $logfile)[7];
save_state $pos, time, $delivered;
exit 0;
}
printf "delivered.value %d\n", $delivered;
foreach my $code (sort keys %rejects) {
printf "%s.value %d\n", clean_fieldname('reject ' . $code), $rejects{$code};
}