irule to proxy traffic externally to another site

If all you're wanting to do is sending the request to another webserver, then you can achieve this with the node (or pool) commands, though you might need to rewrite the HTTP request to change the Host: line if the final webserver is not configured to respond to

I'm thinking something like this

when HTTP_REQUEST {

switch -- [HTTP::uri] { "/testurl1" { HTTP::header replace "Host" "othersite1.org" pool othersite1_pool }

"/testurl2" {
     HTTP::header replace "Host" "othersite2.org"
     pool othersite2_pool
   }

}

log local0. "Sending [HTTP::uri] to [LB::server]\r\n\r\n"

}

The virtual server has a pool named "default_pool", which is where anything not sent elsewhere by the irule will end up.

If I request /something.txt, then I get the default_pool:

Rule /Common/irule-to-proxy-traffic-externally-to-another-site : Sending /something.txt to /Common/default_pool 0

And if I request /testurl1, it sends the request to a member of otherside1_pool:

Rule /Common/irule-to-proxy-traffic-externally-to-another-site : Sending /testurl1 to /Common/othersite1_pool 0

Does that help ?