Some folks have been discussing an app store model. perhaps in Murano, but more 
global, that would allow images/template to be registered somewhere like on 
openstack.org and show up on all clouds that have the global repo enabled. 
Murano would be extended to fetch the images/templates to the local glance on 
the first launch of an app if its not already cached locally.

Would that sort of thing fit better then trying to sync glances backing store 
between clouds?

Thanks,
Kevin

________________________________________
From: Richard Raseley [[email protected]]
Sent: Thursday, April 23, 2015 9:55 AM
To: Tim Bell
Cc: [email protected]
Subject: Re: [Openstack-operators] Sharing resources across OpenStack   
instances

Tim Bell wrote:
> Has anyone found a good way to do this without needing the user to upload
> to each cloud (and handle the associated consistency themselves) ?

For the use-case of inter-cloud replication and Swift, it seems pretty
straight forward to configure 'Container to Container Synchronization'[0].

I haven't done this specifically before, but it seems like you would
just then need some sort of auditing script running on both sides to
make Glance aware of replicated images.

Regards,

Richard Raseley

SysOps Engineer
Puppet Labs

[0] - http://docs.openstack.org/developer/swift/overview_container_sync.html

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