uri pool redirection using single domain

Your iRule should work just find. You might want to make the uri lowercase before you do a comparison in case your webserver is non case sensitive.

when HTTP_REQUEST {
  set uri [string tolower [HTTP::uri]]
  if { $uri contains "client1" } {
     pool Client1-Pool
  } elseif { $uri contains "client2" } {
     pool Client2-Pool
  } elseif { $uri contains "client3" } {
     pool Client3-Pool
 }
}

You might also want to use the "starts_with" operator so that you don't catch that string somewhere else in the uri (ie. http://www.foo.com/foo.bar?client1). Also, if your naming schema wraps past 10, keep in mind that /client10 will match your first comparison. Make sure you put the client10 check before the client1.

when HTTP_REQUEST {
  set uri [string tolower [HTTP::uri]]
  if { $uri starts_with "/client1" } {
     pool Client1-Pool
  } elseif { $uri starts_with "/client2" } {
     pool Client2-Pool
  } elseif { $uri starts_with "/client3" } {
     pool Client3-Pool
 }
}

If your iRule gets very large due to a lot of mappings, you could look into using a data group to store the mappings in and then build the logic to extract the token you want to search for from the uri and use that as a search string with the "findclass" method.

Check out the wiki for all the command help and samples.

-Joe