No UTS namespace option

[kooyunmo]

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.

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[ndeloof]

There's no reason this isn't supported, just nobody did so far :D
Please open an issue on https://github.com/compose-spec/compose-spec so this is added to the compose format

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This issue has been automatically marked as not stale anymore due to the recent activity.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

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This issue has been automatically closed because it had not recent activity during the stale period.

[man4red]

Could we reopen this?

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This issue has been automatically marked as not stale anymore due to the recent activity.