--as-uid and --as-gid seem to be not usable in Docker container about isolate

[gollux]

The problem is actually not related to Docker, I can reproduce it on a normal Linux system.

However, I am not sure what you are trying to achieve. The --as-uid and --as-gid options are typically used only when root is initializing a sandbox on behalf of another user (e.g., in a sandbox management daemon as in the daemon branch). So using it with --run does not make much sense.

[gollux]

Yes, it is supposed to be used only with --init as root, while the actual --run is done by the non-root user.

[farmerboy95]

Thanks for the quick reply @gollux , I think I understand it now after checking the daemon branch. Since I did not see any example of how to use these 2 options, I thought they could be used with --run.

So you mean that we should only use them in --init?