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contrib-munin/plugins/rabbitmq/rabbitmq_connections

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#!/bin/sh
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: << =cut
=head1 NAME
rabbitmq_connections - monitor the number of connections to RabbitMQ
=head1 CONFIGURATION
You will need to add configuration to
/etc/munin/plugin-conf.d/rabbitmq_connection.conf for this plugin to
work.
=over 2
=item C<user>
Required. Valid choices are C<rabbitmq> and C<root>. This is required
by C<rabbitmqctl>.
=item C<env.conn_warn>
Optional, default value is 500
=item C<env.conn_crit>
Optional, default value is 1000
=back
=head2 EXAMPLE CONFIGURATION
[rabbitmq_connections]
user rabbitmq
env.conn_warn 512
env.conn_crit 1024
=head1 MAGIC MARKERS
#%# family=contrib
=cut
case $(whoami) in
rabbitmq|root)
;;
*)
echo 'Error: Plugin requires "user" to be set in plugin configuration.' >&2
echo 'See "munindoc rabbitmq_connections" for more information' >&2
exit 1
;;
esac
# If run with the "config"-parameter, give out information on how the
# graphs should look.
if [ "$1" = "config" ]; then
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CONN_WARN=${conn_warn:-500}
CONN_CRIT=${conn_crit:-1000}
# The host name this plugin is for. (Can be overridden to have
# one machine answer for several)
# The title of the graph
echo 'graph_title RabbitMQ connections'
# Arguments to "rrdtool graph". In this case, tell it that the
# lower limit of the graph is '0', and that 1k=1000 (not 1024)
echo 'graph_args --base 1000 -l 0'
# The Y-axis label
echo 'graph_vlabel connections'
# We want Cur/Min/Avg/Max unscaled (i.e. 0.42 load instead of
# 420 milliload)
#echo 'graph_scale no'
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echo 'graph_category chat'
echo "connections.label Connections"
echo "connections.warning $CONN_WARN"
echo "connections.critical $CONN_CRIT"
echo "connections.info Number of active connections"
echo 'graph_info Shows the number of connections to RabbitMQ'
# Last, if run with the "config"-parameter, quit here (don't
# display any data)
exit 0
fi
# If not run with any parameters at all (or only unknown ones), do the
# real work - i.e. display the data. Almost always this will be
# "value" subfield for every data field.
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if hash rabbitmqctl >/dev/null 2>&1; then
connections=$(HOME=/tmp rabbitmqctl list_connections state | grep -c running)
else
echo "$0: Could not run rabbitmqctl" >&2
connections=U
fi
printf "connections.value %s\n" "$connections"