Add passing of X-Forwarded-Proto to Glance API endpoint
Add passing of X-Forwarded-Proto to Glance API endpoint

Glance supports the http_proxy_to_wsgi middlware, and it was recently
enabled in the overcloud [1]. However, for it to work properly, we
need to add the X-Forwarded-Proto header which was missing from the
HAProxy configuration.

[1] I4a8f7fc079ca93c50aa0ef7b0548dc64f6c5cfa0

Change-Id: I82e2db1145b0476cec27676fdfbb97e86cbd8182

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo