openstack team mailing list archive

[Craig Lee <lee@xxxxxxxx>]

All,

We've been working on a Virtual Organization (VO) capability to allow 
federated OpenStacks.  So far, we've concentrated on just federated data 
access, having modified Keystone and Swift on both the server and client 
sides.  The are a number of further distributed/federated capabilities 
that one can imagine, e.g., authorizing one Keystone to instantiate VM 
through a remote Nova.

Obviously, any type of resource federation requires security federation. 
 In the general case, this requires federated identity management, as 
David Chadwick at Kent has been working on.  This type of federation is 
somewhat different than just sharing a Keystone or Glance among multiple 
instances, but is arguably more general.

I would really like the OS community to achieve some rough consensus 
about what kinds of federation models are desirable and how to build them.

--Craig

On 5/15/13 12:21 PM, Tim Bell wrote:
> +2
>
> I feel there is a difference between
>
> -Is it possible ?
>
> -Is it a good approach for use case X ?
>
> Multi-site varies hugely depending on whether the aim is sharing the
> work or recovery scenarios.
>
> Defining a good model for multi-site, resilient deployments and
> multi-site, maximum throughput/utilisation would be very interesting.
>
> Tim
>
> *From:*Openstack
> [mailto:openstack-bounces+tim.bell=cern.ch@xxxxxxxxxxxxxxxxxxx] *On
> Behalf Of *Narayan Desai
> *Sent:* 15 May 2013 21:14
> *To:* John Paul Walters
> *Cc:* openstack@xxxxxxxxxxxxxxxxxxx
> *Subject:* Re: [Openstack] Share Glance between cells or regions
>
> +1.
>
> We're going to be running a bunch of parallel deployments of openstack
> for the purpose of experimentation in system design. it would be nice to
> be able to share glance and keystone between instances.
>
>   -nld
>
> On Wed, May 15, 2013 at 1:46 PM, John Paul Walters <jwalters@xxxxxxx
> <mailto:jwalters@xxxxxxx>> wrote:
>
>     Hi,
>
>     We're looking at setting up a geographically distributed OpenStack
>     installation, and we're considering either cells or regions.  We'd
>     like to share a single Glance install between our regions (or
>     cells), so the same images can be spawned anywhere.  From here:
>
>     http://docs.openstack.org/trunk/openstack-ops/content/segregate_cloud.html
>
>     it's not clear whether that's possible.  Can anyone shed some light
>     on this?  Is it possible in regions OR cells (or both)?  Is there a
>     better solution that I'm not thinking of?
>
>     thanks,
>     JP
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