Openstack的的nova list命令

nova list用於在shell交互模式下查看當前用戶存在的實例數目，但是這里仍然要注意的地方：

沒有參數的nova list

[root@node-5 newstest-master]# nova list
+--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+
| ID                                   | Name  | Status | Task State | Power State | Networks                                                        |
+--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+
| b3738b0a-8a27-4720-8364-503543fbb13c | test2 | ACTIVE | None       | Running     | network_20=10.10.0.3; test_pool=10.20.0.3; novanetwork=10.0.0.2 |
+--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+
[root@node-5 newstest-master]# nova list

有參數nova list --all-tenants 1

[root@node-5 newstest-master]# nova list --all-tenants 1
+--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+
| ID                                   | Name  | Status | Task State | Power State | Networks                                                        |
+--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+
| 957b3fd5-0526-4e23-a4f6-bbeb5a9cd734 | 1     | ACTIVE | None       | Running     | network_20=10.10.0.4; test_pool=10.20.0.4; novanetwork=10.0.0.4 |
| b3738b0a-8a27-4720-8364-503543fbb13c | test2 | ACTIVE | None       | Running     | network_20=10.10.0.3; test_pool=10.20.0.3; novanetwork=10.0.0.2 |
+--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+

從這里我們可以看到，如果不指定參數要求獲取全部的實例列表，那么當前獲得實例列表將使當前的項目的list.