Weighted Least Connections: How to add a pool member via iControl interface

You're right, it's a trap !

I don't know if this would work in your solution, but one workaround might be to use the "weighted-least-connections-node" load balancing mode. Then you could create the node with a connection limit and add it to a pool:

!/usr/bin/env ruby

require "rubygems"
require "f5-icontrol"

@ic = F5::IControl.new("10.2.2.29","user","pass", ["LocalLB.Pool","LocalLB.NodeAddress"]).get_interfaces

ipport_def = {"address" => "10.10.10.10", "port" => 80}
connection_limit = 5
pool_name = "test_ic_pool"

 Create the node
@ic["LocalLB.NodeAddress"].create([ipport_def['address']],[connection_limit])

 Add it as a pool member
@ic["LocalLB.Pool"].add_member([pool_name],[[ipport_def]])

I guess there is the option of writing a weighted least connections (memeber) lb mode in an iRule and disregarding the mode of the actual pool. That way you could dynamically add pool members and not have to worry about this trap.

Hope that helps

Phil