Hi folks, I'm a bit confused about the lxc.utsname option. The lxc.conf manpage says:
The utsname section defines the hostname to be set for the
container. That means the container can set its own hostname
without changing the one from the system. That makes the hostname
private for the container.
I'm interpreting this as: If you set an utsname here, the container will
get its own independent hostname. If you don't set an utsname in the
configuration, the container will share the hostname with the host
system, meaning you can change the host hostname from within the
container.
However, experiments as well as source review show that this is not the
case: a container seems to always have an independent hostname,
regardless of the (presence of) a utsname option. If this is correct,
would it perhaps make sense to reword the above paragraph like this:
The utsname section defines the hostname to be set for the
container. Every container can always set its own hostname
without changing the one from the system, but without this option
the hostname for the container gets initialized to the hostname
of the system.
Or something like that?
Gr.
Matthijs
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