On Tue, Aug 23, 2016 at 8:26 AM, Christian Kniep <ckn...@gaikai.com> wrote: > Hey Rich, > > nice idea, but unfortunately this provides the hostname of the container > itself. >
As it should. /etc/hostname inside a container should contain the hostname of the container. It shouldn't actually be possible to determine the hostname of the host from inside a container, or even that there is a host outside the container. You could still bind-mount it into the container if you wanted to in order to leak this information into the container. That is up to you, but I would suggest that openrc should not by default expose host information into the container. Symlinking /proc into /etc/hostname is still useful because it not only handles container hostnames (keep in mind that two containers could share the same /etc), but it also covers cases where the hostname changes, and it doesn't require writing to etc (which in general shouldn't be used to store state). The people who are saying /etc/hostname shouldn't really exist are completely right. However, if for whatever reason we did want to provide it for compatibility (just like mtab), then a symlink to /proc at least ensures it returns the same answer as the system call. -- Rich
