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Hahn Axel (hahn) authoredHahn Axel (hahn) authored
check_haproxy_health 2.53 KiB
#!/bin/bash
# ======================================================================
#
# NAGIOS CLIENT CHECK :: haproxy healthcheck
#
# ----------------------------------------------------------------------
#
# ----------------------------------------------------------------------
# 2020-04-27 v1.0 <axel.hahn@iml.unibe.ch>
# 2020-05-04 v1.1 <axel.hahn@iml.unibe.ch> show message if monitor-uri was not set
# 2020-12-03 v1.2 <axel.hahn@iml.unibe.ch> loop over multiple frontend status urls
# ======================================================================
. `dirname $0`/inc_pluginfunctions
cfgfile=/etc/haproxy/haproxy.cfg
tmpfile=/tmp/check_haproxy_healthcheck_$$
# ----------------------------------------------------------------------
# pre checks
# ----------------------------------------------------------------------
ph.reqire wget
cat $cfgfile >/dev/null
if [ $? -ne 0 ]; then
ph.abort "UNKNOWN: unable to read ha proxy config $cfgfile ... `ls -l $cfgfile`"
fi
cat $cfgfile | grep "\ mode\ .*http" >/dev/null
if [ $? -ne 0 ]; then
ph.abort "UNKNOWN: haproxy is not in http mode"
fi
# ----------------------------------------------------------------------
# build url
# ----------------------------------------------------------------------
proto=http
auth=
host=localhost
port=80
uri=
uri=` cat $cfgfile | grep "\ monitor-uri\ " | awk '{ print $2 }'`
if [ -z "$uri" ]; then
ph.abort "UNKNOWN: no monitor-uri setting was found in the config $cfgfile."
fi
cat $cfgfile | grep "bind\ .*\ ssl\ " >/dev/null && proto=https
# fix #4176 - take first found frontend ip only
# port=`cat $cfgfile | grep "\ bind\ " | awk '{ print $2 }' | head -1 | cut -f 2 -d ':'`
# ----------------------------------------------------------------------
# loop over found bind ports
# ----------------------------------------------------------------------
for myport in `cat $cfgfile | grep "\ bind\ " | awk '{ print $2 }' | cut -f 2 -d ':'`
do
url="$proto://${host}:${myport}${uri}"
# --- get status page
wget --no-check-certificate -O $tmpfile $url 2>/dev/null
if [ $? -ne 0 ]; then
rm -f $tmpfile
ph.abort "UNKNOWN: url $url did not respond. `wget --no-check-certificate -O - -S $url`"
fi
grep "200 OK" $tmpfile >/dev/null
if [ $? -ne 0 ]; then
ph.setStatus "error"
ph.status "url $url did not contain 200 OK. `wget --no-check-certificate -O - -S $url`"
else
ph.status "HA Proxy $url is up and running."
fi
rm -f $tmpfile
done
ph.exit
# ----------------------------------------------------------------------