puppet: Add munin graphs for event queues

(imported from commit 6ef730551e2ce1e953f116b3797206098bc23455)

servers/puppet/modules/humbug/files/munin-plugins/tornado_event_queues

@@ -0,0 +1,62 @@
+#!/bin/sh
+#
+# Plugin to monitor the number of active event queues
+#
+# Usage: Link or copy into /etc/munin/node.d/
+#
+# No Parameters
+#
+# Magic markers (optional - only used by munin-config and some
+# installation scripts):
+#
+#%# family=auto
+#%# capabilities=autoconf
+
+# If run with the "autoconf"-parameter, give our opinion on wether we
+# should be run on this system or not. This is optinal, and only used by
+# munin-config. In the case of this plugin, we should most probably
+# always be included.
+
+if [ "$1" = "autoconf" ]; then
+	echo yes
+	exit 0
+fi
+
+HOME=/tmp/
+
+# If run with the "config"-parameter, give out information on how the
+# graphs should look.
+
+if [ "$1" = "config" ]; then
+	# 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 Event queues'
+	# 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 Number'
+	# We want Cur/Min/Avg/Max unscaled (i.e. 0.42 load instead of
+	# 420 milliload)
+	#echo 'graph_scale no'
+	echo 'graph_category Tornado'
+
+	echo "active_queues.label Total active event queues"
+	echo "active_queues.info Total number of active event queues"
+	echo "active_users.label Users with active event queues"
+	echo "active_users.info Number of users with active event queues"
+
+	echo 'graph_info Shows the number of active event queues'
+	# 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.
+
+echo "active_queues.value $(cat /home/humbug/humbug/stats/tornado.active_queues)"
+echo "active_users.value $(cat /home/humbug/humbug/stats/tornado.active_users)"

servers/puppet/modules/humbug/files/munin/plugin-conf.d/munin-node.conf

@@ -136,3 +136,7 @@ env.queue_crit 40000000
 
 [rabbitmq_*]
 user root
+
+[tornado_event_queues]
+user humbug
+group humbug