[lxc-users] lxc archive / lxc restore command?

[Micky Del Favero]

Tomasz Chmielewski <mangoo at wpkg.org> writes:

> In other words - how to best achieve:
>
> - tar a selected container
>
> - copy it via SSH somewhere
>
> - restore at some later point in time somewhere else, on a different,
> unrelated LXD server

Probably it's not the best way to do it, but you can create an
image starting from the container to be archive, export it to a tar
archive and then destroy the image:

  $ lxc publish $container --alias $container
  $ lxc image export $container
  $ lxc image delete $container

to restore it do the opposite:

  $ lxc image import $container.tar.gz
  $ lxc init $container $container
  $ lxc image delete $container
  
creating an image require to stop the container, so you cannot do it on
the fly.

In a simpler and faster (at least for me) way I achieve this goal simply
do manually a tar of /var/lib/lxd/containers/$container, when I'll need
to restore it I'll init a simple container: lxc init $smallimage
$container and then overwrite it with previously tarred container.

If container's filesystem is in a LV volume mount it somewhere and then
using tar on it, or snapshot the LV and then archive the snapshot.

Ciao, Micky
-- 
The sysadmin has all the answers, expecially "No"