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contrib-munin/plugins/postfix/postfix_mailstats_
Clemens Schwaighofer a2c35ad7c2 Postfix monitoring plugins to work with multiple postfix installs
If there are more than one postfix running, with separate config file,
and still use the same main log file, this scripts can create stats
split per running postfix instance.

Those scripts have not been tested on the new debian multiple postfix
infrastructure, only on real separate running postfix services.

Except postfix_mailvolume_multi, each plugin needs to be configured per
running postfix.

For mailqueue* it is the config folder name, for mailstats it is the
syslog_name in the config file.

mailvolume is also based on the syslog_name, but can do auto config if
nothing has been set.
2012-03-14 12:43:50 +09:00

209 lines
4.2 KiB
Perl
Executable File

#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
postfix_mailstats_ - Plugin to monitor the number of mails delivered and
rejected by postfix
=head1 CONFIGURATION
Uses the last part of the symlink name for grepping the correct data from the
postfix log file. The name must be syslog_name from the postfix config.
The environment settings still applay to this plugin.
Configuration parameters for /etc/munin/postfix_mailstats_,
if you need to override the defaults below:
[postfix_mailstats]
env.logdir - Which logfile to use
env.logfile - What file to read in logdir
=head2 DEFAULT CONFIGURATION
[postfix_mailstats]
env.logdir /var/log
env.logfile mail.log
=head1 AUTHOR
Records show that the plugin was contributed by Nicolai Langfeldt in
2003. Nicolai can't find anything in his email about this and expects
the plugin is based on the corresponding exim plugin - to which it now
bears no resemblence.
Extended for multiple queue use by Clemens Schwaighofer (gullevek@gullevek.org) in 2010.
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
=begin comment
These magic markers are used by munin-node-configure when installing
munin-node.
=end comment
#%# family=manual
#%# capabilities=autoconf
=head1 RANDOM COMMENTS
Would be cool if someone ported this to Munin::Plugin for both state
file and log tailing.
=cut
# get the postfix queue number to look for
$0 =~ /postfix_mailstats_([\w\d]+)$/;
my $postfix = $1;
my $statefile = "$ENV{MUNIN_PLUGSTATE}/munin-plugin-".$postfix."_mailstats.state";
my $pos;
my $delivered = 0;
my $rejects = {};
my $LOGDIR = $ENV{'logdir'} || '/var/log';
my $LOGFILE = $ENV{'logfile'} || 'mail.log';
my $logfile = "$LOGDIR/$LOGFILE";
if ($ARGV[0] and $ARGV[0] eq "autoconf")
{
my $logfile;
if (-d $LOGDIR)
{
if (-f $logfile)
{
if (-r $logfile)
{
print "yes\n";
exit 0;
}
else
{
print "no (logfile '$logfile' not readable)\n";
}
}
else
{
print "no (logfile '$logfile' not found)\n";
}
}
else
{
print "no (could not find logdir '$LOGDIR')\n";
}
exit 0;
}
if (-f $statefile)
{
open (IN, '<', $statefile) or die "Unable to open state-file: $!\n";
if (<IN> =~ /^(\d+):(\d+)/)
{
($pos, $delivered) = ($1, $2);
}
while (<IN>)
{
if (/^([0-9a-z.\-]+):(\d+)$/)
{
$rejects->{$1} = $2;
}
}
close IN;
}
if (! -f $logfile)
{
print "delivered.value U\n";
foreach my $i (sort keys %{$rejects})
{
print "r$i.value U\n";
}
exit 0;
}
$startsize = (stat $logfile)[7];
if (!defined $pos)
{
# Initial run.
$pos = $startsize;
}
parseLogfile($logfile, $pos, $startsize);
$pos = $startsize;
if ( $ARGV[0] and $ARGV[0] eq "config" )
{
print "graph_title Postfix message throughput for $postfix\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 postfix\n";
print "delivered.label delivered\n";
print "delivered.type DERIVE\n";
print "delivered.draw AREA\n";
print "delivered.min 0\n";
foreach my $i (sort keys %{$rejects})
{
print "r$i.label reject $i\n";
print "r$i.type DERIVE\n";
print "r$i.draw STACK\n";
print "r$i.min 0\n";
}
exit 0;
}
print "delivered.value $delivered\n";
foreach my $i (sort keys %{$rejects})
{
print "r$i.value ", $rejects->{$i}, "\n";
}
if (-l $statefile)
{
die ("$statefile is a symbolic link, refusing to touch it.");
}
open (OUT, '>', $statefile) or die "Unable to open statefile: $!\n";
print OUT "$pos:$delivered\n";
foreach my $i (sort keys %{$rejects})
{
print OUT "$i:", $rejects->{$i}, "\n";
}
close OUT;
sub parseLogfile
{
my ($fname, $start, $stop) = @_;
open (LOGFILE, $fname)
or die "Unable to open logfile $fname for reading: $!\n";
seek (LOGFILE, $start, 0)
or die "Unable to seek to $start in $fname: $!\n";
while (tell (LOGFILE) < $stop)
{
my $line = <LOGFILE>;
chomp ($line);
if ($line =~ /qmgr.*from=.*size=[0-9]*/ ||
$line =~ /$postfix\/smtp.* status=sent /)
{
$delivered++;
}
elsif ($line =~ /$postfix\/smtpd.*reject: \S+ \S+ \S+ (\S+)/ ||
$line =~ /$postfix\/cleanup.* reject: (\S+)/)
{
$rejects->{$1}++;
}
}
close(LOGFILE) or warn "Error closing $fname: $!\n";
}
# vim:syntax=perl