+# authentication
+ENV OSMNBI_AUTHENTICATION_BACKEND internal
+#ENV OSMNBI_AUTHENTICATION_BACKEND keystone
+#ENV OSMNBI_AUTHENTICATION_AUTH_URL keystone
+#ENV OSMNBI_AUTHENTICATION_AUTH_PORT 5000
+#ENV OSMNBI_AUTHENTICATION_USER_DOMAIN_NAME default
+#ENV OSMNBI_AUTHENTICATION_PROJECT_DOMAIN_NAME default
+#ENV OSMNBI_AUTHENTICATION_SERVICE_USERNAME nbi
+#ENV OSMNBI_AUTHENTICATION_SERVICE_PASSWORD nbi
+#ENV OSMNBI_AUTHENTICATION_SERVICE_PROJECT service