New to icinga, dont want to use nginx or apache

Hi i want to install icinga to monitor a webserver as the built in utilities dont provide an overview of the information i need, however i dont want to install it using apache or nginx but rather litespeed. How would i go about doing this? OS is centOS 7.

For instance i would prefer to assign a subdomain to it, use the existing webserver like any regular website (this is due to limited ram) and control access to the stats.