[Lxc-users] Cluster Resource Agent

[Brian K. White]

On 4/6/2011 4:56 AM, Christoph Mitasch wrote:
> Hi,
>
> I'm wondering if anybody is using LXC in a high availability cluster.
>
> I tried to use it in a Pacemaker Cluster together with DRBD.
>
> In theory there would be the VirtualDomain Resource Agent supporting
> libvirt. But since my libvirt experience together with LXC was not
> promising, I think the best option is to use lxc-tools.
>
> It worked for me when using the lxc init script (/etc/init.d/lxc) for
> active/passive configurations.
>
> As far as I found out only /etc/lxc/ and corresponding lxc rootfs dirs
> have to be shared. /var/lib/lxc should not be necessary, because lxc
> init script doesn't use lxc-create/lxc-destroy.
>
> Anything else to take care of when moving LXC containers around machines?
>
> For active/active and more advanced configurations an OCF Resource Agent
> for LXC would be nice. It could be similar to the ManageVE RA for OpenVZ:
> http://hg.linux-ha.org/agents/raw-file/tip/heartbeat/ManageVE
>
> Regards,
> Christoph

What lxc init script? I think we all write our own and there is no 
official one yet.

I write one for openSUSE but it's not in the suse lxc package nor in any 
other official suse package, just in a stand-alone rclxc package in my 
buildservice repo.

If the official packages for other distros includes an init script, it 
will be different for each one since containers are such a low-level 
feature that can be used for so many different kinds of jobs, it's hard 
to imagine what an official init script would even be like.

-- 
bkw