Hi Ewan, Apologies for the late reply. Been trying to catch up since getting back from vacation on Friday...
Comments inline... On Fri, Dec 31, 2010 at 6:15 AM, Ewan Mellor <ewan.mel...@eu.citrix.com> wrote: > We (Citrix) are working on Nova-Glance integration for XenAPI, under the > bexar-xenapi-support-for-glance blueprint, but I see that something similar > has just been merged as part of Rick Harris’ xenapi_snapshots_first_cut > branch for the xs-snapshots blueprint. We need to get our design ideas > lined up, otherwise we’re just wasting time both trying to do the same thing > at the same time. > > Firstly, I see that Rick’s added a ‘glance’ XenServer plugin, following what > I did with the ‘objectstore’ plugin. Obviously it was reasonable to copy > what was there already, but I now think that this was a mistake on my part, > and that the streaming should be done inside nova-compute, rather than in a > xapi plugin. The only thing that we should be using the plugin for should > be placing the external kernel/ramdisk, if present – everything else can be > done with direct XenAPI calls, and doesn’t need a plugin. With that in > mind, Sateesh is working on putting the Glance client code inside Nova. Is > there any particular reason that you _need_ the code inside a plugin for > xs-snapshots, or will it be OK if we move it? I'll let Rick handle this, and probably the best place for discussion is on the separate mailing list thread Nova/Glance snapshot that Rick started. > Assuming that that’s OK, where should this code go? There’s discussion on > the xenapi_snapshots_first_cut merge about ImageService, and how long it’s > going to be around. I agree that Glance in the long term becomes the image > service abstraction, so I expect that the Glance client code would be in or > near nova.virt.xenapi, but I haven’t looked closely, so I’m open to other > suggestions. Is there anywhere else that it should go? No, that sounds fine to me if you want to by-pass the /images REST API call and go directly to Glance. > I was also expecting Sateesh to implement the Glance authentication, once > Jay is finished with middleware-authentication. Was anyone else expecting > to do this? This was never a Bexar target, and authentication will be done for Cactus. Is that a showstopper? > Finally, we’re expecting to follow the same model for ESX-Glance integration > as we do for XS-Glance integration, and we’re expecting to do that work at > Citrix too. I presume that that’s OK with everyone. Not sure. Rick? -jay _______________________________________________ Mailing list: https://launchpad.net/~openstack-xenapi Post to : openstack-xenapi@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack-xenapi More help : https://help.launchpad.net/ListHelp
