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[Juan Antonio Osorio Robles <jaosorior@xxxxxxxxxx>]

** Also affects: neutron
   Importance: Undecided
       Status: New

** Also affects: aodh
   Importance: Undecided
       Status: New

** Also affects: ceilometer
   Importance: Undecided
       Status: New

** Also affects: gnocchi
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1590608

Title:
  Services should use http_proxy_to_wsgi middleware

Status in Aodh:
  New
Status in Barbican:
  New
Status in Ceilometer:
  New
Status in Cinder:
  Fix Released
Status in Glance:
  Fix Released
Status in Gnocchi:
  New
Status in OpenStack Identity (keystone):
  Fix Released
Status in neutron:
  In Progress
Status in OpenStack DBaaS (Trove):
  In Progress

Bug description:
  It's a common problem when putting a service behind a load balancer to
  need to forward the Protocol and hosts of the original request so that
  the receiving service can construct URLs to the loadbalancer and not
  the private worker node.

  Most services have implemented some form of secure_proxy_ssl_header =
  HTTP_X_FORWARDED_PROTO handling however exactly how this is done is
  dependent on the service.

  oslo.middleware provides the http_proxy_to_wsgi middleware that
  handles these headers and the newer RFC7239 forwarding header and
  completely hides the problem from the service.

  This middleware should be adopted by all services in preference to
  their own HTTP_X_FORWARDED_PROTO handling.

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