CORD-2933 Add domain to auth

Change-Id: I30f0c82e9f85f6c3efef7b21e7decd2f937b9896
diff --git a/xos/synchronizer/steps/sync_instances.yaml b/xos/synchronizer/steps/sync_instances.yaml
index 8557ac1..70d4824 100644
--- a/xos/synchronizer/steps/sync_instances.yaml
+++ b/xos/synchronizer/steps/sync_instances.yaml
@@ -24,6 +24,10 @@
         username: "{{ admin_user }}"
         password: "{{ admin_password }}"
         project_name: "{{ project_name }}"
+        {% if domain -%}
+        project_domain_name: "{{ domain }}"
+        user_domain_name: "{{ domain }}"
+        {%- endif %}
       interface: "admin"
       {% if delete -%}
       state: absent