Reviewed:  https://review.openstack.org/387077
Committed: 
https://git.openstack.org/cgit/openstack/sahara/commit/?id=c0f43c2c5f6bd21d258063cb0559daf90c960412
Submitter: Jenkins
Branch:    master

commit c0f43c2c5f6bd21d258063cb0559daf90c960412
Author: Jeremy Liu <liuji...@gohighsec.com>
Date:   Sun Oct 16 23:23:54 2016 +0800

    Use http_proxy_to_wsgi middleware
    
    This sets up the HTTPProxyToWSGI middleware in front of Sahara.
    The purpose of this middleware is to set up the request URL
    correctly in case there is a proxy (For instance, a loadbalancer
    such as HAProxy) in front of Sahara.
    
    The HTTPProxyToWSGI is off by default and needs to be enabled
    via a configuration value.
    
    Change-Id: Ica7e8671e3880c0db90d382bec89b0994f75b36d
    Closes-bug: #1590608


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

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

Title:
  Services should use http_proxy_to_wsgi middleware

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:
  New
Status in Freezer:
  Fix Released
Status in Glance:
  Fix Released
Status in Gnocchi:
  Fix Committed
Status in heat:
  Fix Released
Status in OpenStack Identity (keystone):
  Fix Released
Status in Magnum:
  In Progress
Status in neutron:
  Fix Released
Status in Panko:
  Fix Released
Status in Sahara:
  Fix Released
Status in OpenStack Search (Searchlight):
  In Progress
Status in senlin:
  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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