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|
#!@@PERL@@ -w
#
# Plugin to monitor the volume of mails delivered by postfix.
#
# Usage: copy or link into /etc/munin/node.d/
#
# Parameters:
#
# config (required)
# autoconf (optional - used by munin-config)
#
# Config variables:
#
# logdir - Which logfile to use
# logfile - What file to read in logdir
#
# $Log$
# Revision 1.6.2.2 2005/01/25 20:26:10 jimmyo
# Turn on graph_scale for generic/postfix_mailvolume.
#
# Revision 1.6.2.1 2005/01/25 20:24:10 jimmyo
# Improved graph_title of generic/postfix_* (Deb#292083).
#
# Revision 1.6 2004/12/10 18:51:43 jimmyo
# linux/apt* has been forced to LANG=C, to get predictable output.
#
# Revision 1.5 2004/12/10 10:47:47 jimmyo
# Change name from ${scale} to ${graph_period}, to be more consistent.
#
# Revision 1.4 2004/12/09 22:12:55 jimmyo
# Added "graph_period" option, to make "graph_sums" usable.
#
# Revision 1.3 2004/05/20 19:02:36 jimmyo
# Set categories on a bunch of plugins
#
# Revision 1.2 2004/05/14 21:16:46 jimmyo
# "Upped" som plugins from contrib/manual to auto.
#
# Revision 1.1 2004/01/02 18:50:00 jimmyo
# Renamed occurrances of lrrd -> munin
#
# Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo
# Import of LRRD CVS tree after renaming to Munin
#
# Revision 1.1 2003/11/26 14:45:34 jimmyo
# New plugins
#
# Revision 1.7 2003/11/15 11:10:28 jimmyo
# Various fixes
#
# Revision 1.6 2003/11/07 17:43:16 jimmyo
# Cleanups and log entries
#
#
#
# Magic markers (optional - used by munin-config and some installation
# scripts):
#
#%# family=auto
#%# capabilities=autoconf
# To search for postconf
$ENV{PATH} = $ENV{PATH} . ":/sbin:/usr/sbin:/usr/local/sbin";
my $statefile = "@@PLUGSTATE@@/munin-plugin-postfix_mailvolume.state";
my $pos = undef;
my $volume = 0;
my $LOGDIR = $ENV{'logdir'} || '/var/log';
my $LOGFILE = $ENV{'logfile'} || 'syslog';
if ( $ARGV[0] and $ARGV[0] eq "autoconf" )
{
my $logfile;
`which postconf >/dev/null 2>/dev/null`;
if ($?)
{
if (-d $LOGDIR)
{
$logfile = "$LOGDIR/$LOGFILE";
if (-f $logfile)
{
if (-r "$logfile")
{
print "yes\n";
exit 0;
}
else
{
print "no (logfile not readable)\n";
}
}
else
{
print "no (logfile not found)\n";
}
}
else
{
print "no (could not find logdir)\n";
}
}
else
{
print "no (postfix not found)\n";
}
exit 1;
}
my $logfile = "$LOGDIR/$LOGFILE";
my $prevdate = get_prev_date();
if (-f "$logfile.$prevdate")
{
$rotlogfile = "$logfile.$prevdate";
}
elsif (-f "$logfile.0")
{
$rotlogfile = $logfile . ".0";
}
elsif (-f "$logfile.1")
{
$rotlogfile = $logfile . ".1";
}
elsif (-f "$logfile.01")
{
$rotlogfile = $logfile . ".01";
}
else
{
$rotlogfile = $logfile . ".0";
}
if (-f "$statefile")
{
open (IN, "$statefile") or exit 4;
if (<IN> =~ /^(\d+):(\d+)/)
{
($pos, $volume) = ($1, $2);
}
close IN;
}
if (! -f $logfile and ! -f $rotlogfile)
{
print "delivered.value U\n";
exit 0;
}
$startsize = (stat $logfile)[7];
if (!defined $pos)
{
# Initial run.
$pos = $startsize;
}
if ($startsize < $pos)
{
# Log rotated
parseLogfile ($rotlogfile, $pos, (stat $rotlogfile)[7]);
$pos = 0;
}
parseLogfile ($logfile, $pos, $startsize);
$pos = $startsize;
if ( $ARGV[0] and $ARGV[0] eq "config" )
{
print "graph_title Postfix bytes throughput\n";
print "graph_args --base 1000 -l 0\n";
print "graph_vlabel bytes / \${graph_period}\n";
print "graph_scale yes\n";
print "graph_category postfix\n";
print "volume.label throughput\n";
print "volume.type DERIVE\n";
print "volume.min 0\n";
exit 0;
}
print "volume.value $volume\n";
if(-l $statefile) {
die("$statefile is a symbolic link, refusing to touch it.");
}
open (OUT, ">$statefile") or exit 4;
print OUT "$pos:$volume\n";
close OUT;
sub parseLogfile
{
my ($fname, $start, $stop) = @_;
open (LOGFILE, $fname) or exit 3;
seek (LOGFILE, $start, 0) or exit 2;
while (tell (LOGFILE) < $stop)
{
my $line =<LOGFILE>;
chomp ($line);
if ($line =~ /qmgr.*from=.*size=([0-9]+)/)
{
$volume += $1;
}
}
close(LOGFILE);
}
sub get_prev_date
{
my @date = localtime (time - 86400);
my $prevdate = $date[5]+1900 . $date[4]+1 . $date[3];
return $prevdate;
}
# vim:syntax=perl
|
