[lxc-users] Procdeure for to move a container from host1 to host2

Pablo Silva psilvao at gmail.com
Mon Aug 31 13:53:50 UTC 2015


Thanks Serge! for your response..

We want to move a stop container from hosta to host b, my big question is,
simply make a copy rsync or I should also copy the cgroups information to
the host b?

-Pablo

On Mon, Aug 31, 2015 at 10:47 AM, Serge Hallyn <serge.hallyn at ubuntu.com>
wrote:

> Quoting Pablo Silva (psilvao at gmail.com):
> > Dear colleagues:
> >
> >      I need to know how to move a container that is on host1 host2
> towards.
> >
> >      I can use lxc-clone or just rsync is from host1 to host2 ?, what
> > happens to the information generated in / cgrups?
>
> Wait, do you want to copy a running container?  The /cgroup info is not
> persistent, so if the container is shutdown then it's irrelevant.  If
> the container is running, then criu takes care of checkpointing and
> restarting that info.
>
> So for a non-running container 'rsync --numeric-ids' should be fine.
> Otherwise you probably want to be using lxd.  ('lxc move' will work
> there for either case)
>
> -serge
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