Munin contributed plugins

#!/bin/bash

#

# Created by Jan Rękorajski <baggins@pld-linux.org> based on vserver_cpu_ plugin.

#

# Graph Vserver cumulative cpu usage stats

#

# Configuration variables

#   vservers - specify the vservers to include in the graph (default: all)

#

# NOTE: If no configuration variable is set, the default will be used

#

# see vserver_resources for example uses of configuration files

VSERVERS="$vservers"

INFO=(`sed 's/.*:\t//' /proc/virtual/info 2>/dev/null || echo '<none>'`)

KCIN="$[ 16#${INFO[2]} ]";

# If this is 1, then VCI_SPACES is present in the kernel (new in 2.6.19)

if [ $[ (KCIN >> 10) & 1 ] -eq 1 ]

then 

    NAMELOC="nsproxy"

else 

    NAMELOC="cvirt"

fi

if [ -z "$VSERVERS" ] ; then

    XIDS=`find /proc/virtual/* -type d -exec basename {} \;`

else

    # it's really more performant to specify vservers by ids or by linking but not in the configuration-file by name

    XIDS=""

    for i in $VSERVERS ; do

	if [ -d /proc/virtual/$i ] ; then

	    XIDS="${XIDS}${i} "

	else

	    for j in `find /proc/virtual/* -type d -exec basename {} \;` ; do

		if [ "$i" = "`cat /proc/virtual/$j/$NAMELOC |grep NodeName |cut -f2`" ] ; then

		    XIDS="${XIDS}${j} "

		fi

	    done

	fi

    done

fi

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

	echo 'graph_category Virtualization'

	echo 'graph_args --base 1000'

	echo 'graph_title Vserver cpu usage'

	echo 'graph_vlabel jiffies used per ${graph_period}'

	echo 'graph_info Shows jiffies used on each vserver.'

	for i in $XIDS ; do 

		LABEL=`grep NodeName /proc/virtual/$i/$NAMELOC | cut -f2`

		NAME=`echo $LABEL | tr '-' '_'`

		echo "${NAME}_hold.label on hold for cpu on $LABEL"

		echo "${NAME}_hold.info on hold for cpu on $LABEL."

		echo "${NAME}_hold.type COUNTER"

		echo "${NAME}_scpu.label system cpu usage for $LABEL"

		echo "${NAME}_scpu.info system cpu usage for $LABEL."

		echo "${NAME}_scpu.type COUNTER"

		echo "${NAME}_ucpu.label user cpu usage for $LABEL"

		echo "${NAME}_ucpu.info user cpu usage for $LABEL."

		echo "${NAME}_ucpu.type COUNTER"

	done

	exit 0

fi

for i in $XIDS ; do

	NAME=`grep NodeName /proc/virtual/$i/$NAMELOC | cut -f2 | tr '-' '_'`

	awk -v name=$NAME -v u=0 -v s=0 -v h=0 '

		/^cpu [0-9]+:/ { u+=$3; s+=$4; h+=$5}

		END {

			print name "_hold.value " h

			print name "_scpu.value " s

			print name "_ucpu.value " u

		}' /proc/virtual/$i/sched

done