Health monitors - XML API

You could possibly alleviate some of your troubles by using an external monitor and cURL, which you know works.

 

 

Create a copy of /config/monitors/sample_monitor and make the following changes:

 

 

pidfile="/var/run/$MONITOR_NAME.$1..$2.pid"

if [ -f $pidfile ]
then
   kill -9 -`cat $pidfile` > /dev/null 2>&1
fi

echo "$$" > $pidfile

node_ip=`echo $1 | sed 's/::ffff://'`

RESULT=`curl -N -H 'Connection: Keep-Alive' -H 'Content-Type: text/xml; charset=utf-8' --ntlm -u 'username:password' -o /dev/null -s -w %{http_code} http://$node_ip:$2`

if [ $RESULT -eq 200 ]
then
     echo "up"
fi

rm -f $pidfile

 

 

The external monitor consumes the IP address of the server to test in the first parameter ($1) and the port in the second ($2). The beauty of this approach is that you can go absolutely nuts with cURL. In my example I did a simple GET request and returned the HTTP status code using --write-out %{http_code}, but you could just as easily return the entire payload and check for a given value.