[openstack-dev] [keystone] We still have a not identical HEAD response

Attila Fazekas afazekas at redhat.com
Tue Jul 11 11:03:34 UTC 2017

Hi all,

Long time ago it was discussed to make the keystone HEAD responses
 right [1] as the RFC [2][3] recommends:

"  A response to the HEAD method is identical to what an equivalent
   request made with a GET would have been, except it lacks a body. "

So, the status code needs to be identical as well !

Recently  turned out, keystone is still not correct in all cases [4].

'Get role inference rule' (GET), 'Confirm role inference rule' (HEAD)
 has the same URL pattern, but they differs in the status code (200/204)
 which is not allowed! [5]

This is the only documented case where both the HEAD and GET defined and
the HEAD has a 204 response.

Are you going to fix this [4] as it was fixed before [6] ?

Best Regards,

 Here is the tempest change for accepting the right code [7].

[1] http://lists.openstack.org/pipermail/openstack-dev/2014-July/039140.html
[2] https://tools.ietf.org/html/rfc7231#section-4.3.2
[3] https://tools.ietf.org/html/rfc7234#section-4.3.5
[4] https://bugs.launchpad.net/keystone/+bug/1701541
[6] https://bugs.launchpad.net/keystone/+bug/1334368
[7] https://review.openstack.org/#/c/479286/
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