EAV Monitor - HTTP Monitor cURL Basic GET

Code:

#!/bin/sh
#
# (c) Copyright 1996-2007 F5 Networks, Inc.
#
# This software is confidential and may contain trade secrets that are the
# property of F5 Networks, Inc. No part of the software may be disclosed
# to other parties without the express written consent of F5 Networks, Inc.
# It is against the law to copy the software. No part of the software may
# be reproduced, transmitted, or distributed in any form or by any means,
# electronic or mechanical, including photocopying, recording, or information
# storage and retrieval systems, for any purpose without the express written
# permission of F5 Networks, Inc. Our services are only available for legal
# users of the program, for instance in the event that we extend our services
# by offering the updating of files via the Internet.
#
# @(#) $Id: http\_monitor\_cURL+GET,v 1.0 2007/06/28 16:10:15 deb Exp $
# (based on sample\_monitor,v 1.3 2005/02/04 18:47:17 saxon)
#
# these arguments supplied automatically for all external monitors:
# $1 = IP (IPv6 notation. IPv4 addresses are passed in the form
# ::ffff:w.x.y.z
# where "w.x.y.z" is the IPv4 address)
# $2 = port (decimal, host byte order)
#
# Additional command line arguments ($3 and higher) may be specified inthe monitor template
# This example does not expect any additional command line arguments
#
# Name/Value pairs may also be specified in the monitor template
# This example expects the following Name/Vaule pairs:
# URI = the URI to request from the server
# RECV = the expected response (not case sensitive)
#

# remove IPv6/IPv4 compatibility prefix (LTM passes addresses in IPv6 format)
IP=\`echo ${1} \| sed 's/::ffff://'\`
PORT=${2}

PIDFILE="/var/run/\`basename ${0}\`.${IP}\_${PORT}.pid"
# kill of the last instance of this monitor if hung and log current pid
if [ -f $PIDFILE ]
then

   echo "EAV exceeded runtime needed to kill ${IP}:${PORT}" \| logger -p
   local0.error
   kill -9 \`cat $PIDFILE\` > /dev/null 2>&1

fi

echo "$$" > $PIDFILE

# send request & check for expected response
curl -fNs http://${IP}:${PORT}${URI} \| grep -i "${RECV}" 2>&1 > /dev/null

# mark node UP if expected response was received
   if [ $? -eq 0 ]
then
   rm -f $PIDFILE
   echo "UP"
else
   rm -f $PIDFILE
fi

exit