Use internal interface instead of public interface

In some case, public interface may not reachable in internal.

Change-Id: Ibcdef571a6814e6626216fe33028e5e69889b4f2
Closes-Bug: #1670259
(cherry picked from commit 57dc5b3e36)

ansible/roles/common/templates/admin-openrc.sh.j2

@@ -5,6 +5,7 @@ export OS_TENANT_NAME=admin
 export OS_USERNAME=admin
 export OS_PASSWORD={{ keystone_admin_password }}
 export OS_AUTH_URL={{ admin_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_admin_port }}/v3
+export OS_INTERFACE=internal
 export OS_IDENTITY_API_VERSION=3
 {% if kolla_enable_tls_external | bool and kolla_external_fqdn_cacert %}
 export OS_CACERT={{ kolla_external_fqdn_cacert }}

ansible/roles/nova/tasks/simple_cell_setup.yml

@@ -2,6 +2,7 @@
 - name: Waiting for nova-compute service up
   command: >
     docker exec kolla_toolbox openstack
+    --os-interface internal
     --os-auth-url {{ admin_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_admin_port }}/v3
     --os-identity-api-version 3
     --os-project-domain-name default