[openstack-dev] [Nova] core v3 APIs (was Glance/cinder Nova API proxying)

Russell Bryant rbryant at redhat.com
Fri May 17 03:46:37 UTC 2013


On 05/16/2013 08:18 PM, Andrew Laski wrote:
> On 05/16/13 at 10:27am, Russell Bryant wrote:
>> On 05/16/2013 10:11 AM, Andrew Laski wrote:
>>> On 05/14/13 at 09:18am, Christopher Yeoh wrote:
>>>> <snip>
>>>> In a closely related issue there is also a blueprint covering promoting
>>>> APIs to core and vice-versa and we'll need to get a consensus around
>>>> this as well, so if anyone has any suggestions, please make them.
>>>
>>> I'm assuming that core means on by default, and guaranteed to be on
>>> because there's some enforcement of it being loaded.  If this is not the
>>> case then disregard the rest of this post, but if it is I would like to
>>> propose an alternative.
>>>
>>> Since everything will essentially be an extension in v3 what if core was
>>> just the default configuration value for extensions that should be
>>> loaded.  And there would be nothing preventing them from being turned
>>> off through configuration.
>>
>> I really think we should force a base API to be present.  We can do our
>> users a huge favor by setting a core API that is *always* present, and
>> that will always work in a consistent manner, assuming a reasonably
>> capable compute driver is in use.  This is how we ensure a base level of
>> consistency among all OpenStack clouds.
> 
> I'm actually not against this.  But if there's a forced API I think it
> should be somewhat minimal.  And promotion to core might occur because
> some functionality is deemed fairly essential to Nova, not necessarily
> because it's popular.

Agreed, though all things essential to Nova are also likely to be
popular.  :-)

> And I think consistency can be enforced by refstack and trademark
> guidelines, and doesn't necessarily need to be enforced by Nova.

I definitely do not want to punt this problem to the board of directors.
 I think setting some baseline of consistency is a technical issue and
should be exclusively handled by the technical community.

> More than anything I just want to have the conversation about what core
> means, which is always a heated topic in this community.  I have my own
> opinion on it but really I would like to see us all to be on the same
> page when making decisions about what should or should not be core,
> whatever page that is.

+1, definitely important to have this well defined before v3 is finalized.

-- 
Russell Bryant



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