SELECT citus.mitmproxy('conn.allow()');
 mitmproxy
---------------------------------------------------------------------

(1 row)

-- add the workers
SELECT master_add_node('localhost', :worker_1_port);
 master_add_node
---------------------------------------------------------------------
               1
(1 row)

SELECT master_add_node('localhost', :worker_2_proxy_port);  -- an mitmproxy which forwards to the second worker
 master_add_node
---------------------------------------------------------------------
               2
(1 row)