Hi, to my best knowledge, it seems that docker-compose does not support UTS setting as docker (https://docs.docker.com/engine/reference/run/#uts-settings---uts).

There already exist some reported issues related to this (#3338), but I still cannot use the option by specifying uts_mode: host or ust: host in docker-compose.yml.

I think this is the important feature for the users who have to use GPU collective communication libraries like NCCL, since it requires to set --uts=host.