- I don’t know what you mean with indexers and IP. You do not use the docker network IP addresses. Use only the host IP:port if connecting them, or if dns in docker work, use container name:port. For the last it’s always the container port you use and not the host port that you mapped.
You can’t use localhost inside the docker network.
It is probably better to ask the question to the guys that made the guide as we don’t know the guide. And I would also suggest trying to learn how docker works instead of following a guide. If you followed a guide that is not for Mac, then that is very important.