I'm looking for a reverse proxy solution which either:
a) Let's me explicitly define which requests go to which servers based on a regex (or some other similar way of defining that certain URL patterns get mapped to certain back-end servers)
b) Supports some sort of hash algorithm for proxying so that requests for a given URL always get mapped to one specific server, and publishes that algorithm so that I can use it in my application to determine which server a given URL will be mapped to.
Anything out there like this? Or do I have to write my own...?