Bug: Testcontainers in Docker container

method get_container_host_ip(self) in testcontainers/core/container.py

have the following code commented (you drive me crazy) and should be uncommented

    # # check testcontainers itself runs inside docker container
    # if inside_container() and not os.getenv("DOCKER_HOST") and not host.startswith("http://"):
    #     # If newly spawned container's gateway IP address from the docker
    #     # "bridge" network is equal to detected host address, we should use
    #     # container IP address, otherwise fall back to detected host
    #     # address. Even it's inside container, we need to double check,
    #     # because docker host might be set to docker:dind, usually in CI/CD environment
    #     gateway_ip = self.get_docker_client().gateway_ip(self._container.id)

    #     if gateway_ip == host:
    #         return self.get_docker_client().bridge_ip(self._container.id)
    #     return gateway_ip

Start in testcontainers/core/container.py at get_container_host_ip(self) and read the surrounding host-detection logic and commented Docker-in-Docker branch. Check existing tests for container host resolution, then verify the branch is active and the expected host or bridge IP behavior is covered.