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[OpenStack Infra <1551836@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/288074
Committed: https://git.openstack.org/cgit/openstack/cue/commit/?id=98bd25c5849cc6ffab8df36bab89187ef3052716
Submitter: Jenkins
Branch:    master

commit 98bd25c5849cc6ffab8df36bab89187ef3052716
Author: Michael Krotscheck <krotscheck@xxxxxxxxx>
Date:   Thu Mar 3 11:23:21 2016 -0800

    Moved CORS middleware configuration into oslo-config-generator
    
    The default values needed for cue's implementation of cors
    middleware have been moved from paste.ini into the configuration
    hooks provided by oslo.config. Furthermore, these values have been
    added to the default initialization procedure. This ensures
    that if a value remains unset in the configuration file, it will
    fallback to using sane defaults. It also ensures that an operator
    modifying the configuration will be presented with that same
    set of defaults.
    
    Change-Id: Ia179bbd7489ca128186990439a161903b7b4c28d
    Closes-Bug: 1551836


** Changed in: cue
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1551836

Title:
  CORS middleware's latent configuration options need to change

Status in Aodh:
  Fix Released
Status in Barbican:
  Fix Released
Status in Ceilometer:
  Fix Released
Status in Cinder:
  Fix Released
Status in cloudkitty:
  In Progress
Status in congress:
  Fix Released
Status in Cue:
  Fix Released
Status in Designate:
  Fix Released
Status in Glance:
  Fix Released
Status in heat:
  Fix Released
Status in Ironic:
  Fix Released
Status in OpenStack Identity (keystone):
  Fix Released
Status in Magnum:
  Fix Released
Status in Manila:
  Fix Released
Status in Mistral:
  Fix Released
Status in Murano:
  Fix Released
Status in neutron:
  Fix Released
Status in OpenStack Compute (nova):
  Fix Released
Status in oslo.config:
  Fix Released
Status in Sahara:
  Fix Released
Status in OpenStack Search (Searchlight):
  Fix Released
Status in Solum:
  Fix Released
Status in Trove:
  Fix Released

Bug description:
  It was pointed out in http://lists.openstack.org/pipermail/openstack-
  dev/2016-February/086746.html that configuration options included in
  paste.ini are less than optimal, because they impose an upgrade burden
  on both operators and engineers. The following discussion expanded to
  all projects (not just those using paste), and the following
  conclusion was reached:

  A) All generated configuration files should contain any headers which the API needs to operate. This is currently supported in oslo.config's generate-config script, as of 3.7.0
  B) These same configuration headers should be set as defaults for the given API, using cfg.set_defaults. This permits an operator to simply activate a domain, and not have to worry about tweaking additional settings.
  C) All hardcoded headers should be detached from the CORS middleware.
  D) Configuration and activation of CORS should be consistent across all projects.

  It was also agreed that this is a blocking bug for mitaka. A reference
  patch has already been approved for keystone, available here:
  https://review.openstack.org/#/c/285308/

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