Open Stack

On Mon, Jun 15, 2015 at 01:07:39PM -0400, Jay Pipes wrote:
> It has come to my attention in [1] that the microversion spec for Nova [2]
> and Ironic [3] have used the project name -- i.e. Nova and Ironic -- instead
> of the name of the API -- i.e. "OpenStack Compute" and "OpenStack Bare
> Metal" -- in the HTTP header that a client passes to indicate a preference
> for or knowledge of a particular API microversion.
> 
> The original spec said that the HTTP header should contain the name of the
> service type returned by the Keystone service catalog (which is also the
> official name of the REST API). I don't understand why the spec was changed
> retroactively and why Nova has been changed to return
> X-OpenStack-Nova-API-Version instead of X-OpenStack-Compute-API-Version HTTP
> headers [4].
> 
> To be blunt, Nova is the *implementation* of the OpenStack Compute API.
> Ironic is the *implementation* of the OpenStack BareMetal API.

While I tend to agree in principle, do we reasonably expect that other
implementations of these APIs will implement every one of these
versions? Can we even reasonably expect another implementation of these
APIs?

// jim

> 
> The HTTP headers should never have been changed like this, IMHO, and I'm
> disappointed that they were. In fact, it looks like a very select group of
> individuals pushed through this change [5] with little to no input from the
> mailing list or community.
> 
> Since no support for these headers has yet to land in the client packages,
> can we please reconsider this?
> 
> Thanks,
> -jay
> 
> [1] https://review.openstack.org/#/c/187112/
> [2] https://github.com/openstack/nova-specs/blob/master/specs/kilo/implemented/api-microversions.rst
> [3] https://github.com/openstack/ironic-specs/blob/master/specs/kilo/api-microversions.rst
> [4] https://review.openstack.org/#/c/155611/
> [5] https://review.openstack.org/#/c/153183/
> 
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