OpenVZ

[Glauber Costa]

On Mon, Oct 15, 2012 at 6:25 PM, Josh Boyer <jwboyer at gmail.com> wrote:
> On Mon, Oct 15, 2012 at 9:59 AM, Glauber Costa <glommer at gmail.com> wrote:
>> For those who expressed interest in OpenVZ in the past,
>>
>> I've just added a Review Request for vzctl, the OpenVZ control
>> utility: https://bugzilla.redhat.com/show_bug.cgi?id=866495
>>
>> As previously said, getting OpenVZ to work with Upstream Linux Kernel
>> is a huge and ongoing effort. But with the release of vzctl 4.0,
>> Fedora users should already be able to start a container
>> with basic networking, and get it running.
>>
>> Checkpoint/Restore is expecting to be working (and thus, live
>> migration available) by no lator than Fedora 19, and will depend on an
>> aditional userspace package to work (to be submitted any time soon)
>
> Which package(s)?  The criu-tools have already been packaged by Adrian
> Reber, so that's at least one down.
>

For live migration, that would be enough. I was actually unaware that criu has
been packaged already, so this is very good news.

There are more userspace utilities to land, like vzlist, vzpid, etc,
but those will
be bundled in the vzctl package itself.

> As for actually enabling the kernel config options for CRIU in the
> kernel, we talked about that yesterday at FUDCon.  I need to discuss
> this with the kernel team still, but a tentative idea is to enable it
> in rawhide debug kernels to start with and see how things go from
> there.  That's 3.7 based at the moment.  I've resisted enabling it so
> far because namespaces aren't completed yet and it depends on those.
> It's also hidden behing CONFIG_EXPERT, which I _really_ don't want to
> enable because it makes the kernel configs a mess.
>

Well, there is a bunch of patches still in flight to give criu the ability to CR
whole containers. But this is moving very fast. =)

-- 
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