Merge "Allow glance services to use independent hostnames"

ansible/group_vars/all.yml

ansible/roles/cinder/templates/cinder.conf.j2

ansible/roles/glance/defaults/main.yml

ansible/roles/glance/tasks/precheck.yml

ansible/roles/glance/templates/glance-api.conf.j2

ansible/roles/ironic/templates/ironic.conf.j2

ansible/roles/nova-hyperv/templates/nova_hyperv.conf.j2

ansible/roles/nova/templates/nova.conf.j2