Re: [Libvir] [RFC] Add Container support to libvirt
On Thu, Jan 03, 2008 at 10:07:39AM +0530, Shuveb Hussain wrote:
Hi,
How do you plan to maintain VM states across base machine reboots. I
mean just as Xen uses XenStore and OpenVZ uses config files to
"remember" VM configs? Are there tools being developed to do that?
As I see it the container infrastructure is going into 2.6.24 as a
generic UNIXish mechanism. It is well integrated into the kernel. So
I'm really wondering if there are generic tools going to be available
to manage the configuration of containers.
If there are existing tools available or being developed we should use
them, otherwise we should just define the process ourselves.
I don't know if it is a good idea to use libvirt's XML files
themselves for container config and start containers during libvirtd
start-up. I'm just thinking aloud here. What was your plan?
I think that using the libvirt XML file format would be a good initial
starting point, since its in keeping with the QEMU/KVM driver and there's
no other pre-existing config file format available. You could have a
dir /etc/libvirt/[your driver] to store them in. You'd be able to re-use
much of the code in the existing qemu driver to this - I do similar
re-use and file formats for the forthcoming storage API drivers.
Dan.
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