Munin contributed plugins

#!/usr/bin/perl -w

#

# Copyright (C) 2006 Lars Strand

#

# Munin-plugin to monitor temperature on HP-servers.

# Uses SNMP, and needs hpasmd.

# 

# 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.

#

#

# $Log$

#

#

#

#%# family=snmpauto

#%# capabilities=snmpconf

use strict;

use Net::SNMP;

my $DEBUG = 0;

my $MAXLABEL = 20;

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

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

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

# Taken from CPQHLTH-MIB.mib

my %locations = (

		 1 => "other",

		 2 => "unknown",

		 3 => "system",

		 4 => "systemBoard",

		 5 => "ioBoard",

		 6 => "cpu",

		 7 => "memory",

		 8 => "storage",

		 9 => "removableMedia",

		 10 => "powerSupply",

		 11 => "ambient",

		 12 => "chassis",

		 13 => "bridgeCard"

		 );

#my $response;

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

{

	print "index  1.3.6.1.4.1.232.6.2.6.8.1.\n";

	print "require 1.3.6.1.4.1.232.6.2.6.8.1.4.1.1. [1-4]\n";

	exit 0;

}

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

{

	$host  = $1;

	if ($host =~ /^([^:]+):(\d+)$/)

	{

		$host = $1;

		$port = $2;

	}

}

elsif (!defined($host))

{

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

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

}

# Sensor locations

my $cpqHeTemperatureLocale = "1.3.6.1.4.1.232.6.2.6.8.1.3.1.";

# Temperatures

my $cpqHeTemperatureCelsius = "1.3.6.1.4.1.232.6.2.6.8.1.4.1.";

# Temperatures thresholds

my $cpqHeTemperatureThreshold = "1.3.6.1.4.1.232.6.2.6.8.1.5.1.";

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

		-hostname  => $host,

		-community => $community,

		-port      => $port

	);

if (!defined ($session)) {

	die "Croaking: $error";

}

# Fetch the values.

my $temp_locales   = $session->get_table($cpqHeTemperatureLocale);

if (!defined ($temp_locales)) {

    die "Croaking: $error";

}

my @i = ();

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

    #print "host_name $host\n";

    print "graph_title Temperature (in C)\n";

    print "graph_category sensors\n";

    print "graph_args --upper-limit 100 -l 0\n";

    print "graph_vlabel C\n";

    print "graph_info This graph shows the temperatures on a HP server.\n";

    while (my ($oid, $loc_id) = each (%$temp_locales)) {

	@i = split(/\./, $oid);

	my $t = $session->get_request($cpqHeTemperatureThreshold . $i[-1]);

        while (my ($ooid, $threshold) = each(%$t)) {

	    print "$locations{$loc_id}$i[-1].label $locations{$loc_id}\n";

	    print "$locations{$loc_id}$i[-1].info Temperature sensor on $locations{$loc_id}\n";

	    print "$locations{$loc_id}$i[-1].critical $threshold\n";

	}

    }

    exit 0;

}

# Fetch values

while (my ($oid, $loc_id) = each (%$temp_locales)) {

    @i = split(/\./, $oid);

    my $t = $session->get_request($cpqHeTemperatureCelsius . $i[-1]);

    while (my ($ooid, $temperature) = each(%$t)) {

	print "$locations{$loc_id}$i[-1].value $temperature\n";

    }

}