munin-contrib/plugins/haproxy/haproxy_sessions_backend

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#!/bin/bash
# -*- bash -*-
: << =cut
=head1 NAME
haproxy_sessions_backend -Haproxy Sessions Backend
=head1 CONFIGURATION
[haproxy*]
user root
env.backend backend_name_1 backend_name_2 backend_name_3
env.frontend frontend_name_1 frontend_name_2 frontend_name_3
# You can use url o socket option, use one of them, not both!
env.url http://user:passwd@IP:port/admin?stats;csv
# or
env.socket /var/lib/haproxy/stats.socket
=head1 AUTHOR
Ricardo Fraile <rfrail3@yahoo.es>
=head1 LICENSE
GPLv2
=head1 MAGICK MARKERS
#%# family=auto
#%# capabilities=autoconf
=cut
. $MUNIN_LIBDIR/plugins/plugin.sh
function parse_url {
# Modify ifs variable
OIFS=$IFS;
IFS=",";
PXNAME="$1"
SVNAME="$2"
VALUE="$3"
if [ ! -z "$url" ]; then
LINE1=`curl -s "$url" | head -1 | sed 's/# //'`
LINE2=`curl -s "$url" | grep "$PXNAME,$SVNAME"`
fi
if [ ! -z "$socket" ]; then
LINE1=`echo 'show stat' | socat unix-connect:"$socket" stdio | head -1 | sed 's/# //'`
LINE2=`echo 'show stat' | socat unix-connect:"$socket" stdio | grep "$PXNAME,$SVNAME"`
fi
ARRAY1=($LINE1);
# Find values
for ((i=0; i<${#ARRAY1[@]}; ++i));
do
# Get data
if [[ "${ARRAY1[$i]}" == "${VALUE}" ]]; then
o=$i;
o=`expr $o + 1`
echo ${LINE2} | cut -d" " -f $o
fi
done
# Reset ifs
IFS=$OIFS;
}
SVNAME='BACKEND'
LIST="$backend"
WARN_PERCENT="80"
if [ "$1" = "autoconf" ]; then
echo yes
exit 0
fi
if [ "$1" = "config" ]; then
echo "graph_title Current sessions ${SVNAME}"
echo 'graph_args --base 1000 -l 0 '
echo 'graph_vlabel Sessions'
echo 'graph_scale no'
echo 'graph_category loadbalancer'
echo "graph_info Current sessions ${SVNAME}"
for i in ${LIST}; do
echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.label Current Sessions $i"
echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.type GAUGE"
echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.min 0"
echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.info Current Sessions $i"
#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.label Max $i"
#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.type GAUGE"
#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.min 0"
#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.info Max sessions $i"
echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.label Limit Sessions $i"
echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.type GAUGE"
echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.min 0"
echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.info Limit Sessions $i"
SLIM=`parse_url ${i} ${SVNAME} slim`
if [[ "$SLIM" =~ ^[0-9]+$ ]] && [[ "$SLIM" != 0 ]]; then
echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.critical $SLIM"
fi
if [[ "$SLIM" =~ ^[0-9]+$ ]] && [[ "$SLIM" != 0 ]]; then
echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.warning $((${SLIM}*${WARN_PERCENT}/100))"
fi
done
exit 0
fi
for i in ${LIST}; do
SCUR=`parse_url ${i} ${SVNAME} scur`
#SMAX=`parse_url ${i} ${SVNAME} smax`
SLIM=`parse_url ${i} ${SVNAME} slim`
echo "scur`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.value $SCUR"
#echo "smax`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.value $SMAX"
echo "slim`echo $i | md5sum | cut -d - -f1 | sed 's/ //g'`.value $SLIM"
done