RFC: disable haproxy http mode
RFC: disable haproxy http mode

In some cases the http mode in haproxy causes issues with api calls
(We exeperienced this in production between horizon and neutron)

See:
https://ask.openstack.org/en/question/57958/keystone-through-haproxy/

Change-Id: Id2079c5a491ef8691e7ad8846a5fec99e49ec4ba

dardelean/kolla-ansible,dardelean/kolla-ansible,dardelean/kolla-ansible