Munin contributed plugins

#!/bin/bash

# -*- bash -*-

: << =cut

=head1 NAME

ntp_pool_score_ - Wildcard plugin to monitor the score assigned to a server 

from pool.ntp.org . This is achieved by fetching the cvs data from

http://www.pool.ntp.org/scores/IP_ADDRESS/log?limit=1 using wget.

=head1 CONFIGURATION

This is a wildcard plugin. The wildcard suffix link will be the server to be

monitored.

This plugin uses the following configuration variables:

 [ntp_pool_score_*]

  env.warning - score below which a warning will be triggered

  env.critical - score below which the value becomes critical

=head2 DEFAULT CONFIGURATION

The default configuration is to set warning to 15 and critical to 10.

=head2 EXAMPLE WILDCARD USAGE

C<ln -s /usr/share/munin/plugins/ntp_pool_score_ /etc/munin/plugins/ntp_pool_score_SERVER_IP

...will monitor the score of the server with ip address SERVER_IP

=head1 AUTHOR

Tocho Tochev

tocho AT tochev DOT net

=head1 LICENSE

 GNU General Public License, version 2

 http://www.gnu.org/licenses/gpl-2.0.html 

=head1 MAGIC MARKERS

 #%# family=manual

=cut

target=`basename $0 | sed 's/^ntp_pool_score_//g'`

if [ "$target"x = "x" ]; then

    echo "Please call using ntp_pool_score_IP" >&2

    exit 1

fi

# Check if config was requested

if [ "$1" = "config" ]; then

	# Configure graph

    echo "graph_title NTP Pool Score for $target"

    echo 'graph_args -l -25 -u 25'

    echo 'graph_vlabel Score'

    echo 'graph_category time'

    echo "graph_info NTP Pool Score for $target"

    echo "score.warning ${warning:-15}":

    echo "score.critical ${critical:-10}":

	echo "score.info Score for $target"

	echo "score.label score"

	exit 0

fi

# Get the score

# the score can be a bit outdated but do not worry about that

SCORE=$(wget "http://www.pool.ntp.org/scores/$target/log?limit=1" \

                --timeout=30 -O - 2>/dev/null \

                | tail -n 1 | awk -F ',' '{print $5}')

if echo "$SCORE" | grep -q '^[0-9.]\+$'; then

    echo "score.value $SCORE"

else

    echo "score.value U"

fi