[Sheepdog] Current OpenStack compatibility for sheepdog?

[Matthew Law]

On Wed, November 2, 2011 1:05 pm, MORITA Kazutaka wrote:
> At Wed, 2 Nov 2011 12:27:08 -0000,
> Matthew Law wrote:
>>
>>
>> What is the current status of sheepdog with regard to using it for
>> bootable VM storage in openstack?  I remember work was being proposed on
>> this but has it been done?
>
> Yes, it has been done.  IIUC, you can boot VMs from Sheepdog volumes
> with EC2 API.  I'm not sure OpenStack API supports booting from
> volumes.

That's great.  I'll dig into that some more.

>>
>> Looking at the documentation online, I think perhaps Sheepdog has a lot
>> more features now than are widely publicised.  Can I volunteer to update
>> some documentation to put this right? :-)  Perhaps a new walkthrough of
>> sheepdog's features is in order?
>
> Great!  Currently, AFAIK, no one is working on that.  It would be
> really helpful. :)

I can't help with code as I am more of a web developer and sysadmin but I
do a lot of testing, scripting and docs in the $dayjob so I think I can
contribute that way.  The reason I asked about openstack is because I
think it is worth documenting if sheepdog can be used with things like
openstack.

In fact, if sheepdog worked with openstack, opennebula, eucalyptus and
ganeti out of the box that would probably cover the most popular
cloud/cluster management tools currently in use and raise the profile of
sheepdog too, which can only be a good thing.

I will be looking at how ganeti integrates DRBD this weekend with a view
to working on some patches to allow sheepdog to be used as well.  Fingers
crossed!

Final question today: can you please remind me what the issues were with
creating a block driver for Xen -was it the difference between the Xen
version of qemu and the KVM version?  Is this possible and where would the
changes need to be made to make sheepdog equally support Xen and KVM?


Cheers,

Matt.