[lxc-users] Online container backup

[Narcis Garcia]

Debian 8 in a single and tratitional ext4 partition.
My idea is that the backup is a complete container export, to be
restored in another box if necessary.

Is there some newer LXC repository for Debian as ppa:ubuntu-lxc/daily ?

At this moment, my procedure is:
$ lxc-stop -n MyGuest
$ tar -cjf /var/backups/MyGuest.tar.bz2 /var/lib/lxc/MyGuest
$ lxc-start -n MyGuest
but container unavailability is too long.

Another procedure, but without stopping container:
$ cp -aPx /var/lib/lxc/MyGuest /tmp/MyGuest
$ tar -cjf /var/backups/MyGuest.tar.bz2 /tmp/MyGuest

Thanks.


El 11/06/15 a les 01:43, Fajar A. Nugraha ha escrit:
> On Thu, Jun 11, 2015 at 1:29 AM, Narcis Garcia <informatica at actiu.net
> <mailto:informatica at actiu.net>> wrote:
> 
>     Hello,
> 
>     What is the best procedure to make a consistent container backup without
>     stopping it?
> 
>     I'm using Debian 8
> 
> 
> If "consistent" = "you get the same state as power failure on a physical
> server, which most database can recover from using some kind of journal
> replay", then it should be storage-level snapshot. This requires that
> the containers use a storage which can support a large number of
> snapshots without degrading performance (e.g. btrfs or zfs).
> 
> If "consistent" = "vmware/virtualbox's snapshot/resume feature", then
> AFAIK there's no perfectly reliable way to do that in lxc yet.
> There's http://criu.org/LXC , but it still have some limitations.
> 
> -- 
> Fajar  
> 
> 
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