On Wed, Apr 6, 2016 at 7:47 PM, Sean Dague <s...@dague.net> wrote:
> On 04/06/2016 04:19 AM, Sylvain Bauza wrote:
>>
>>
>> Le 06/04/2016 06:44, Qiming Teng a écrit :
>>> Not an expert of Nova but I am really shocked by such a change. Because
>>> I'm not a Nova expert, I don't have a say on the *huge* efforts in
>>> maintaining some builtin/default flavors. As a user I don't care where
>>> the data have been stored, but I do care that they are gone. They are
>>> gone because they **WILL** be supported by devstack. They are gone with
>>> the workflow +1'ed **BEFORE** the devstack patch gets merged (many
>>> thanks to the depends-on tag). They are gone in hope that all deployment
>>> tools will know this when they fail, or fortunately they read this email,
>>> or they were reviewing nova patches.
>>>
>>> It would be a little nicer to initiate a discussion on the mailinglist
>>> before such a change is introduced.
>>
>>
>> It was communicated accordingly to operators with no strong arguments :
>> http://lists.openstack.org/pipermail/openstack-operators/2016-March/010045.html
>
> Not only with no strong arguments, but with a general - "yes please,
> that simplifies our life".
>
>> You can also see that https://review.openstack.org/#/c/300127/ is having
>> three items :
>>  - a DocImpact tag creating a Launchpad bug for documentation about that
>>  - a reno file meaning that our release notes will provide also some
>> comments about that
>>  - a Depends-On tag (like you said) on a devstack change meaning that
>> people using devstack won't see a modified behavior.
>>
>> Not sure what you need more.
>
> The default flavors were originally hardcoded in Nova (in the initial
> commit) -
> https://github.com/openstack/nova/commit/bf6e6e718cdc7488e2da87b21e258ccc065fe499#diff-5ca8c06795ef481818ea1710fce91800R64
>  and moved into the db 5 years ago to be a copy of the EC2 flavors at
> the time -
> https://github.com/openstack/nova/commit/563a77fd4aa80da9bddac5cf7f8f27ed2dedb39d.
> Those flavors were meant to be examples, not the final story.
>
> All the public clouds delete these and do their own thing, as do I
> expect many of the products. Any assumption that software or users have
> that these will exist is a bad assumption.
>
> It is a big change, which is why it's being communicated on Mailing
> Lists in addition to in the release notes so that people have time to
> make any of their tooling not assume these flavors by name will be
> there, or to inject them yourself if you are sure you need them (as was
> done in the devstack case).

I'm clear. Thanks, Sean.

Cheers,
Shinobu

>
>         -Sean
>
> --
> Sean Dague
> http://dague.net
>
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