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Perfect, thank you Alex.

I'll depend the update review on it.

Best regards,
   Alex Levine


On 12/15/15 4:03 PM, Alex Xu wrote:
> Hi, Alexandre,
>
> we discussed this on api meeting 
> http://eavesdrop.openstack.org/meetings/nova_api/2015/nova_api.2015-12-15-12.00.log.html
>
> Finally people agreement on merge os-user-data into servers. I will 
> submit a patch up for this merge.
>
> Thanks
> Alex
>
> 2015-12-14 21:24 GMT+08:00 Alex Xu <soulxu at gmail.com 
> <mailto:soulxu at gmail.com>>:
>
>     Hi, Alexandre,
>
>     Yes, I think we need pass the version into `server_update`
>     extension point. My irc nick is alex_xu, let me know if you have
>     any trouble with this.
>
>     Thanks
>     Alex
>
>     2015-12-13 2:34 GMT+08:00 Alexandre Levine
>     <alexandrelevine at gmail.com <mailto:alexandrelevine at gmail.com>>:
>
>         Hi all,
>
>         os-user-data extension implements server_create method to add
>         user_data for server creation. No Controller is used for this,
>         only "class UserData(extensions.V21APIExtensionBase)".
>
>         I want to add server_update method allowing to update the
>         user_data. Obviously I have to add it as a microversioned
>         functionality.
>
>         And here is the problem: there is no information about the
>         incoming request version in this code. It is available for
>         Controllers only. But checking the version in controller would
>         be too late, because the instance is already updated
>         (non-generator extensions are post-processed).
>
>         Can anybody guide me how to resolve this collision?
>
>         Would it be possible to just retroactively add the user_data
>         modification for the whole 2.1 version skipping the
>         microversioning? Or we need to change nova so that request
>         version is passed through to extension?
>
>         Best regards,
>           Alex Levine
>
>         P.S. Sorry for the second attempt - previous letter went with
>         [openstack] instead of [openstack-dev] in the Subject.
>
>
>
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