[openstack-dev] [api][nova][ironic] Microversion API HTTP header

Ken'ichi Ohmichi ken1ohmichi at gmail.com
Wed Jun 17 01:35:54 UTC 2015


2015-06-16 21:16 GMT+09:00 Jay Pipes <jaypipes at gmail.com>:
> On 06/16/2015 08:00 AM, Dmitry Tantsur wrote:
>>
>>
>> 16 июня 2015 г. 13:52 пользователь "Jay Pipes" <jaypipes at gmail.com
>> <mailto:jaypipes at gmail.com>> написал:
>>  >
>>  > On 06/16/2015 04:36 AM, Alex Xu wrote:
>>  >>
>>  >> So if our min_version is 2.1 and the max_version is 2.50. That means
>>  >> alternative implementations need implement all the 50 versions
>>  >> api...that sounds pain...
>>  >
>>  >
>>  > Yes, it's pain, but it's no different than someone who is following
>> the Amazon EC2 API, which cuts releases at a regular (sometimes every
>> 2-3 weeks) clip.
>>  >
>>  > In Amazon-land, the releases are date-based, instead of
>> microversion/incrementing version-based, but the idea is essentially the
>> same.
>>  >
>>  > There is GREAT value to having an API mean ONE thing and ONE thing
>> only. It means that developers can code against something that isn't
>> like quicksand -- constantly changing meanings.
>>
>> Being one of such developers, I only see this "value" for breaking
>> changes.
>
>
> Sorry, Dmitry, I'm not quite following you. Could you elaborate on what you
> mean by above?

I guess maybe he is thinking the value of microversions is just for
backwards incompatible changes and backwards compatible changes are
unnecessary to be managed by microversions because he is proposing it
as Ironic patch.

Thanks
Ken Ohmichi



More information about the OpenStack-dev mailing list