Clion docker integration

Setup - Clion 2021.3.4.  Dockerized Toolchain and cmake project. Everything is OK, application is build inside container and i am able to run dockerized application

Problem: application should interact with another container which exposes some TCP service on a loopback adapter. But this port is inaccesible within container which runs application.

How to allow Clion, running container allow host network mode for example? Or, any other workaround is appreciated.