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I think what you ultimately want is a unified glance infrastructure, and
we're in the same boat. Currently, I don't know of a good way to do this
without taxing the network links, or slowing down the snapshots
drastically. For now, we have settled on manually syncing the base
instances from one region to the others.

Warren

Warren


On Tue, May 20, 2014 at 5:41 PM, Scott Devoid <devoid at anl.gov> wrote:

> We have two glance instances in separate deployments (an essex deployment
> and a havana deployment) and we would like to synchronize images between
> the two.
>
> Uploading the raw image data works fine with either the command line or
> the API, but making the metadata consistent is quite difficult. In the
> essex API I can't even find container_format or disk_format reported in the
> instance.
>
> I also can't find a way with the client to affix the snapshot metadata on
> the Havana side other than through a direct HTTP PATCH request, and it is
> not very clear what headers that request is expecting. [1]
>
> Another thought I had, since both instances of glance are using the
> Filesystem store (w/ separate NFS deployments) was to simply use the
> existing NFS in essex and inform the havana glance about the existence of
> an image through the --location tag. However this is intentionally blocked.
> [2]
>
> Thank you in advance for the help,
> ~ Scott
>
> [1] http://developer.openstack.org/api-ref-identity-v2.html
> [2] https://bugs.launchpad.net/glance/+bug/942118
>
>
>
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