Configure HAProxy, Galera and MongoDB before start
Configure HAProxy, Galera and MongoDB before start

As with RabbitMQ previously, we can hit the same race conditions between
config being written on all nodes vs. pacemaker starting the
services. Configuring the services at least one step earlier than
starting them will allow us to get rid of this race condition.

Change-Id: I78f47dfb82ca8609ed40f784d65ba92db3d411f3

rdo-management/tripleo-heat-templates,trozet/opnfv-tht,openstack/tripleo-heat-templates,trozet/opnfv-tht,dprince/tripleo-heat-templates,dprince/tripleo-heat-templates,bcrochet/tripleo-heat-templates,rdo-management/tripleo-heat-templates,trozet/tripleo-heat-templates,bcrochet/tripleo-heat-templates,trozet/tripleo-heat-templates,bcrochet/tripleo-heat-templates,trozet/opnfv-tht,wyg3958/tripleo-heat-templates,openstack/tripleo-heat-templates,wyg3958/tripleo-heat-templates