[openstack-dev] [openstack-tc] [barbican] Curious about oslo.messaging (from Incubation Request for Barbican)

Mark McLoughlin markmc at redhat.com
Wed Dec 4 09:12:05 UTC 2013

On Wed, 2013-12-04 at 05:01 +0000, John Wood wrote:
> Hello folks,
> I was curious if there is an OpenStack project that would be a good
> example to follow as we convert Barbican over to oslo messaging. 
> I've been examining existing OpenStack projects such as Ceilometer and
> Keystone to see how they are utilizing oslo messaging. These projects
> appear to be utilizing packages such as 'rpc' and 'notifier' from the
> oslo-incubator project. It seems that the oslo.messaging project's
> structure is different than the messaging structure of oslo-incubator
> (there are newer classes such as Transport now for example). Is there
> an example OpenStack project utilizing the oslo.messaging structure
> that might be better for us to follow?
> The RPC approach of Ceilometer in particular seems well suited to
> Barbican's use case, so seems to be a good option for us to follow,
> unless there are better options folks can suggest.

The patch to port Nova might be helpful to you:


(Note - the patch is complete and ready to merge, it's just temporarily
blocked on a separate Nova issue being resolved)


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