Munin contributed plugins

#!/bin/bash

#

# Munin plugin snmp__bri_se_

#

# Version: 0.2, released on 30/02/2009, tested on Debian GNU/Linux 4.0 (etch)

# using Cisco 5350 gateways.

#

# This plugin reports the number of BRI channels currently in use on SE/foo

# using SNMP community bar.

#

# Requirements: bash, snmpget, rev, cut, which

#

# Copyright (c) 2009 by Kees Meijs <kees@kumina.nl> for Kumina bv.

#

# This work is licensed under the Creative Commons Attribution-Share Alike 3.0

# Unported license. In short: you are free to share and to make derivatives of

# this work under the conditions that you appropriately attribute it, and that

# you only distribute it under the same, similar or a compatible license. Any

# of the above conditions can be waived if you get permission from the copyright

# holder.

# HOW TO?

#

# Symlink snmp___bri_se_ to /etc/munin/plugins/snmp_HOSTNAME_COMMUNITY_bri_se_SEOFGATEWAY

# For example: snmp_1.2.3.4_public_bri_se_3 to check community "public" on host "1.2.3.4"

# using SE #3.

# More strict checking

set -e

# Check for snmpget

SNMPGET=$(which snmpget)

# Catch command line arguments

JOB=$1

# Set variables

HOSTNAME=$(echo $0 | rev | cut -d '_' -f 5 | rev)

COMMUNITY=$(echo $0 | rev | cut -d '_' -f 4 | rev)

SE=$(echo $0 | rev | cut -d '_' -f 1 | rev)

# Configure Munin

case "$1" in

	"config")

		echo "host_name $HOSTNAME"

		echo "graph_title BRI usage on SE-$SE"

		echo "graph_vlabel Number of used BRI channels"

		echo "graph_scale no"

		echo "graph_category network"

		for CHANNEL in $(seq 0 7); do

			echo "chan_$CHANNEL.label SE-$SE/$CHANNEL used channels"

		done

		exit 0;;

esac

# Return fetched SNMP values

for CHANNEL in $(seq 0 7); do

	echo -n "chan_$CHANNEL.value "

	$SNMPGET -v 1 -c $COMMUNITY $HOSTNAME 1.3.6.1.4.1.9.10.19.1.1.9.1.3.$SE.$CHANNEL | rev | cut -d ' ' -f 1 | rev

done

# Exit cleanly

exit 0