Munin contributed plugins

#!/usr/bin/perl -w

#

# File: snmp__gwmta_msgs_

# Copyright (C) 2007 Gabriele Pohl (contact@dipohl.de)

#

# Derived from plugin snmp__load

# Copyright (C) 2004 Jimmy Olsen, Dagfinn Ilmari Mannsaaker

#

# 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  02111-1307, USA.

#

# ------------------------------------------------------------

# Plugin to monitor Novell Groupwise MTA (GWMTA)

# ------------------------------------------------------------

# 

# Management Information Base (MIB) GWMTA-MIB 

#

# Naming Tree: 1.3.6.1.4.1.23

#      iso(1) org(3) dod(6) internet(1) private(4) enterprises(1) novell(23)

#

# To see all values available for your GWMTA, type

# snmpwalk -v1 -c public -m GWMTA-MIB <HOST> gwmta

#

# This plugin fetches:  

#

# * mtaDomainName 1.3.6.1.4.1.23.2.37.1.1.1.2. 

# * mtaTenMinuteRoutedMsgs - 1.3.6.1.4.1.23.2.37.1.1.1.10. 

# * mtaTenMinuteUndeliverableMsgs - 1.3.6.1.4.1.23.2.37.1.1.1.12.

# * mtaTenMinuteErrorMsgs - 1.3.6.1.4.1.23.2.37.1.1.1.14.

#

# Usage:

# --------------

# Link this file snmp__gwmta_msgs_ to your nodes servicedir [/etc/munin/plugins] 

#

# as: 

#   snmp_<host>_gwmta_msgs_<pos>  

#

# with:

#   <host> = Name or IP-Number of host 

#   <pos> = table index of the GWMTA Object

# 

# E.g.

#    ln -s /usr/share/munin/plugins/snmp__gwmta_msgs_ \

#    /etc/munin/plugins/snmp_foo.example.com_gwmta_msgs_0

# ...will monitor a single GWMTA object on host foo.example.com. 

#

# Parameters

#	community - Specify wich community string to use (Default: public)

# 	port - Specify which port to read from (Default: 161)

#	host - Specify which host to monitor (Default: Read from link in servicedir)

#	pos - Specify which table Object to read (Default: Read from link in servicedir, 

# 

# You may adjust settings to your need via configuration in plugin-conf.d/munin-node:

#   [snmp_*_gwmta_msgs_*]

#   env.port <your_port_number>

#   env.community <your SNMP community string>

#   env.pos <your objects table position. Values: 0,1,2,..> 

#   env.host <name or IP of your host>

#

# Parameters can also be specified on a per GWMTA basis, eg:

#   [snmp_example.com_gwmta_msgs_1]

#   env.port 166

#   env.community example

#

# $Log$

# Revision 1.0	2007/09/08 19:44	gap

# Created by gap

#

#%# family=snmpauto

#%# capabilities=snmpconf

use strict;

use Net::SNMP;

my $DEBUG = 0;

my $host      = $ENV{host}      || undef;

my $port      = $ENV{port}      || 161;

my $community = $ENV{community} || "public";

my $pos       = $ENV{pos} || 1;

my $response;

# fix values

my $GRAPH_CATEGORY = "Groupwise";

my $GRAPH_PERIOD = "minute";

my $GRAPH_VLABEL = "number of messages / 10 min";

my $ROUTED_LABEL="Routed";

my $ROUTED_CRITICAL=500;

my $UNDELIVERED_LABEL="Undeliverable";

my $UNDELIVERED_CRITICAL=10;

my $ERRORS_LABEL="Errors";

my $ERRORS_CRITICAL=10;

if (defined $ARGV[0] and $ARGV[0] eq "snmpconf")

{

	print "index 1.3.6.1.4.1.23.2.37.1.1.1.1.\n"; # mtaIndex 	

	print "require 1.3.6.1.4.1.23.2.37.1.1.1.2. \n"; # mtaDomainName 

	print "require 1.3.6.1.4.1.23.2.37.1.1.1.10. [\\d+]\n"; # mtaTenMinuteRoutedMsgs

	print "require 1.3.6.1.4.1.23.2.37.1.1.1.12. [\\d+]\n"; # mtaTenMinuteUndeliverableMsgs

	print "require 1.3.6.1.4.1.23.2.37.1.1.1.14. [\\d+]\n"; # mtaTenMinuteErrorMsgs

	exit 0;

}

if ($0 =~ /^(?:|.*\/)snmp_([^_]+)_gwmta_msgs_(\d+)*$/)

{

	$host  = $1;

	$pos   = $2;

}

elsif (!defined($host))

{

	print "# Debug: $0 -- $1\n" if $DEBUG;

	die "# Error: couldn't understand what I'm supposed to monitor.";

}

my ($session, $error) = Net::SNMP->session(

		-hostname  => $host,

		-community => $community,

		-port      => $port

	);

if (!defined ($session))

{

	die "Croaking: $error";

}

if (defined $ARGV[0] and $ARGV[0] eq "config")

{

	# get name of domain 

	my $domain = &get_single ($session, "1.3.6.1.4.1.23.2.37.1.1.1.2.$pos"); # mtaDomainName 

        # output to munin

	print "host_name $host

graph_category Groupwise

graph_args --base 1000

graph_period $GRAPH_PERIOD

graph_title GWMTA load ($domain) 

graph_info Monitors status of Groupwise MTA, here: $domain. It reports values for the last 10 minutes. 

graph_vlabel $GRAPH_VLABEL

graph_args -l 0

routed.label $ROUTED_LABEL

routed.info mtaTenMinuteRoutedMsgs (1.3.6.1.4.1.23.2.37.1.1.1.10.) 

routed.critical $ROUTED_CRITICAL

routed.type GAUGE

routed.min 0

routed.draw  AREA

routed.graph yes

undelivered.label $UNDELIVERED_LABEL

undelivered.info mtaTenMinuteUndeliverableMsgs (1.3.6.1.4.1.23.2.37.1.1.1.12.)

undelivered.critical $UNDELIVERED_CRITICAL

undelivered.type GAUGE

undelivered.min 0

undelivered.draw  STACK

undelivered.graph  yes

errors.label $ERRORS_LABEL

errors.info mtaTenMinuteErrorMsgs (1.3.6.1.4.1.23.2.37.1.1.1.14.)

errors.critical $ERRORS_CRITICAL

errors.type GAUGE

errors.min 0

errors.draw STACK

errors.graph yes";

	exit 0;

}

	# fetch the data and print

	print "routed.value ", &get_single ($session, "1.3.6.1.4.1.23.2.37.1.1.1.10.$pos"), "\n"; # mtaTenMinuteRoutedMsgs

	print "undelivered.value ", &get_single ($session, "1.3.6.1.4.1.23.2.37.1.1.1.12.$pos"), "\n"; # mtaTenMinuteUndeliverableMsgs

	print "errors.value ", &get_single ($session, "1.3.6.1.4.1.23.2.37.1.1.1.14.$pos"), "\n"; # mtaTenMinuteErrorMsgs

sub get_single

{

	my $handle = shift;

	my $oid    = shift;

	print "# Getting single $oid...\n" if $DEBUG;

	$response = $handle->get_request ($oid);

	if (!defined $response->{$oid})

	{

	    return undef;

	}

	else

	{

	    return $response->{$oid};

	}

}