the result of zun list lack the column 'host' container belongs to

$ zun list
+--------------------------------------+-----------+------------+----------+------------+-----------+-------+
| uuid | name | image | status | task_state | addresses | ports |
+--------------------------------------+-----------+------------+----------+------------+-----------+-------+

the graph should be better below
+--------------------------------------+-----------+------------+----------+------------+-----------+-------+-------+
| uuid | name | image | status | task_state | addresses | ports | host |
+--------------------------------------+-----------+------------+----------+------------+-----------+-------+-------+