Comment 49 for bug 1590608

Reviewed: https://review.openstack.org/387356
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=8be6a30d431da15e2389ebe288c133dc9a28d279
Submitter: Jenkins
Branch: stable/newton

commit 8be6a30d431da15e2389ebe288c133dc9a28d279
Author: Juan Antonio Osorio Robles <email address hidden>
Date: Mon Oct 10 08:56:12 2016 +0300

    Add http_proxy_to_wsgi to api-paste

    This sets up the HTTPProxyToWSGI middleware in front of Neutron-API. 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 Neutron.

    So, for instance, when TLS connections are being terminated in the
    proxy, and one tries to get the versions from the / resource of
    Neutron, one will notice that the protocol is incorrect; It will show
    'http' instead of 'https'. So this middleware handles such cases.
    Thus helping Keystone discovery work correctly.

    The HTTPProxyToWSGI is off by default and needs to be enabled via a
    configuration value.

    Change-Id: Ice9ee8f4e04050271d59858f92034c230325718b
    Closes-Bug: #1590608
    (cherry picked from commit 19c354aacd27f6941467e34826774c6199bc4f8f)