Forum Discussion
Lee_Sutcliffe
Nov 14, 2018Nacreous
You could do this with an external monitor and use cURL to follow the redirect. This is an edited version of the sample monitor (/config/monitors/sample_monitor) The section you need to edit for your environment is:
curl -L -H host:your.host.com https://$node_ip:$2/testpath | grep -E -i "200 OK" > /dev/null
Please note this is untested
!/bin/sh
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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
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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: //depot/maint/bigip12.1.2-hf1/tm_daemon/monitors/sample_monitor1 $
these arguments supplied automatically for all external pingers:
$1 = IP (::ffff:nnn.nnn.nnn.nnn notation or hostname)
$2 = port (decimal, host byte order)
$3 and higher = additional arguments
$MONITOR_NAME = name of the monitor
In this sample script, $3 is the regular expression
Name of the pidfile
pidfile="/var/run/$MONITOR_NAME.$1..$2.pid"
Send signal to the process group to kill our former self and any children
as external monitors are run with SIGHUP blocked
if [ -f $pidfile ]
then
kill -9 -`cat $pidfile` > /dev/null 2>&1
fi
echo "$$" > $pidfile
Remove the IPv6/IPv4 compatibility prefix
node_ip=`echo $1 | sed 's/::ffff://'`
Using the nc utility to get data from the server.
Search the data received for the expected expression.
curl -L -H host:your.host.com https://$node_ip:$2/testpath | grep -E -i "200 OK" > /dev/null
status=$?
if [ $status -eq 0 ]
then
Remove the pidfile before the script echoes anything to stdout and is killed by bigd
rm -f $pidfile
echo "up"
fi
Remove the pidfile before the script ends
rm -f $pidfile