How to configure Istio envoy proxy as Outbound decorator

The idea to:

  • set up additional port (8101) for Istio envoy proxy and use it inside of pod
    (thus it is not necessary to set up additional Gateway and VirtualService for it, port only for inner uses)
  • apply EnvoyFilter on the port, EnvoyFilter by using Lua scripts will doing decorating of reguests

Thank you for any ideas.