LTM Monitor to force server status down and terminate all connections

LTM ver 10.2.3

I need to create a monitor that will look for a file on a server in the pool. The monitor will mark the server down and terminate all connections to the server. While this sounds pretty simple, so far I have not found any examples or a doc on how to complete this. I am still looking...

So basically when an application owner needs to do maintenance on a server, they will just copy this file to the server. We cannot allow these app owners access to the gui.

Any assistance here is greatly appreciated.