grizzly: swift CORS support

[Tom Fifield]

From Grizzly, swift supports CORS. There are various patches which have been merged, including the below listed. The manuals should be updated to reflect the new features, configuration options and examples.

https://review.openstack.org/#/c/19730

Documentation written by the swift team can be found in doc/source/cors.rst

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/65891

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/65891
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=96446a89580f05a64a75a03d08cfb8123828209a
Submitter: Jenkins
Branch: master

commit 96446a89580f05a64a75a03d08cfb8123828209a
Author: Tom Fifield <email address hidden>
Date: Fri Jan 10 16:30:35 2014 +0800

    Add CORS mention to object storage sec of confref

    CORS was a feature added in Grizzly. This simple patch adds a new
    section to the config reference, detailing what it is and the single
    configuration option so far.

    Change-Id: Ied2d5615e7b666370bc6d0dff136d305ba8cee62
    Closes-Bug: 1107326

[Anshu Prateek (anshu-prateek)]

Does this bug need still need any more work on the api-site component?

[Anne Gentle (annegentle)]

Yes, these headers need to be added:

Metadata Use
X-Container-Meta-Access-Control-Allow-Origin Origins to be allowed to make Cross Origin Requests, space separated.
X-Container-Meta-Access-Control-Max-Age Max age for the Origin to hold the preflight results.
X-Container-Meta-Access-Control-Expose-Headers Headers exposed to the user agent (e.g. browser) in the the actual request response. Space separated.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/290641

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/290641
Committed: https://git.openstack.org/cgit/openstack/api-site/commit/?id=89828ddadb9c61a7daf88e71a1eb6aa2a04091ae
Submitter: Jenkins
Branch: master

commit 89828ddadb9c61a7daf88e71a1eb6aa2a04091ae
Author: Anne Gentle <email address hidden>
Date: Wed Mar 9 10:38:29 2016 -0600

    Adds CORS headers for Object Storage API /containers resource

    Change-Id: I35a68ba5d18b2c92c00365c4dac2856d351991c7
    Closes-bug: 1107326

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-manuals 15.0.0 release.