Keystones openstack_auth was undefined

Keystones openstack_auth is undefined for Keystones sanity check
closes-bug: #1601808

Change-Id: I445482ce32b924d9220e8c351363b6793558d3b4

ansible/roles/keystone/defaults/main.yml

@@ -25,3 +25,5 @@ keystone_internal_url: "{{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ k
 keystone_public_url: "{{ public_protocol }}://{{ kolla_external_fqdn }}:{{ keystone_public_port }}/v3"
 
 keystone_logging_debug: "{{ openstack_logging_debug }}"
+
+openstack_keystone_auth: "{'auth_url':'{{ openstack_auth.auth_url }}','username':'{{ openstack_auth.username }}','password':'{{ openstack_auth.password }}','project_name':'{{ openstack_auth.project_name }}','domain_name':'default'}"
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