Refactor glance config tasks
Refactor glance config tasks

This now matches the way we copy confis in other services.

TrivialFix

Change-Id: Ia9c6d5f9a633c0b20b4d9a697863bd2753d39443

toby82/kolla,toby82/kolla,mandre/kolla,GalenMa/kolla,tonyli71/kolla,negronjl/kolla,rahulunair/kolla,GalenMa/kolla,dardelean/kolla-ansible,intel-onp/kolla,openstack/kolla,mrangana/kolla,openstack/kolla,dardelean/kolla-ansible,stackforge/kolla,tonyli71/kolla,nihilifer/kolla,mrangana/kolla,dardelean/kolla-ansible,toby82/kolla,coolsvap/kolla,negronjl/kolla,coolsvap/kolla,stackforge/kolla,nihilifer/kolla,mandre/kolla,mandre/kolla,stackforge/kolla,rahulunair/kolla,coolsvap/kolla,intel-onp/kolla,negronjl/kolla