irule + regex

Hi All,

New to F5 and irules in general.

We have a situation where we need to grab a portion of the HTTP Post that come into the BIGIP, Look for string, and send a manipulated HTTP Post to the Pool.

My thought was to use Regexp to grab the needed potion of the URL, put that into a variable, then create a new HTTP POST and send it to the specified Pool.

Any thoughts or advice? or example scripts I can view/modify

Example:

Initial HTTP POST: https://example.com/-payload/somefile.html

Regex grabs the payload and put it into a var.

Modified HTTP Post that needs to go to the Pool will look like this : https://payload.example.com/somefile.html