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Mangretta's avatar
Mangretta
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May 15, 2024

monitor a pool that consists of Linux Squid Servers

I am trying to monitor a pool that consists of Linux Squid Servers.  The issue I am having is when a squid servers service stops processing requests and the port 3128 is sgtill responding, the pool ...
monitoring
squid
Mangretta's avatar
Mangretta
Icon for Nimbostratus rankNimbostratus
May 15, 2024

Ok.  I have adjusted the code and have proven that I am indeed receiving a 0 back but the pool does not come up.   Does anyone have any experience with this?  I am using the F5 KB article mentioned with no success. 

 

Here is the updated script and output.

 

# start sample script
#!/bin/sh
# (c) Copyright 1996-2007 F5 Networks, Inc.
#
# @(#) $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 in the 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
website="https://mywebsite.com.com"
timeout_seconds=5
 
curl -x X.X.X.X:3128 --silent --output /dev/null --max-time $timeout_seconds $website
 
#if [ "$response_code" == "302" ]; 
if [ $? -eq 0 ]
then
  rm -f $PIDFILE
  echo "UP"
  else
  rm -f $PIDFILE
#   echo "DOWN"
fi
exit
 
 
Output from F5 command line:
 
[admin@dc-pxy-rcp-f5a-inf-a1:Active:Changes Pending] / # curl  -x X.X.X.X:3128 https://mywebsite.com
[admin@dc-pxy-rcp-f5a-inf-a1:Active:Changes Pending] / # echo $?
0
[admin@dc-pxy-rcp-f5a-inf-a1:Active:Changes Pending] / #