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On 12/18/2013 12:44 PM, Nikola Đipanov wrote:
> On 12/18/2013 06:17 PM, Matt Riedemann wrote:
>>
>>
>> On 12/18/2013 9:42 AM, Matt Riedemann wrote:
>>> The question came up in this patch [1], how do we deprecate and remove
>>> keys in the notification payload?  In this case I need to deprecate and
>>> replace the 'instance_type' key with 'flavor' per the associated
>>> blueprint.
>>>
>>> [1] https://review.openstack.org/#/c/62430/
>>>
>>
>> By the way, my thinking is it's handled like a deprecated config option,
>> you deprecate it for a release, make sure it's documented in the release
>> notes and then drop it in the next release. For anyone that hasn't
>> switched over they are broken until they start consuming the new key.
>>
> 
> FWIW - I am OK with this approach - but we should at least document it.
> I am also thinking that we may want to make it explicit like oslo.config
> does it.

We really need proper versioning for notifications.  We've had a
blueprint open for about a year, but AFAICT, nobody is actively working
on it.

https://blueprints.launchpad.net/nova/+spec/versioned-notifications

-- 
Russell Bryant