[Lxc-users] lxc containers as backup 'replicas'

[Rory Campbell-Lange]

On 05/06/13, Serge Hallyn (serge.hallyn at ubuntu.com) wrote:
> Quoting Rory Campbell-Lange (rory at campbell-lange.net):
> > On another point I'd also like to know of the recommended way of using
> > another mount point for lxc containers and the dpkg cache. For example,
> > I wish to hold my containers in /dev/sdb/ mounted on /containers. Should
> > I symlink /var/lib/lxc/ to this mount point?
> 
> If you're on a new enough lxc (i.e. 0.9.0) I'd recommend using lxcpath.
> You can set 'lxcpath = /srv/lxc' in /etc/lxc/lxc.conf, then all
> containers will be created and run from /srv/lxc instead of
> /var/lib/lxc.  Or you can just add '-P /srv/lxc' to all lxc-* commands.

I'm on Debian Wheezy which has 0.8.0~rc1-8+deb7u1. Looks like I should
use the -P flag.

> > Finally I'd be grateful to learn of people's experiences with btrfs for
> > snapshotting and managing containers. I personally use it for my laptop
> > backups, but my host server is on a 3.2.0-4-amd64 kernel which is pretty
> > old by btrfs standards.
> 
> yeah I don't know that I'd trust it under 3.2.  I think 3.5 is where it
> stopped losing data for me.  But best to run some tests.  When it
> failed me, it generally did so after one or two subvolume commands.

Cheers for those notes.

Rory

-- 
Rory Campbell-Lange
rory at campbell-lange.net