I made quota of volme to 1 then try 


stack@k8s:~$ nova boot --block-device source=blank,dest=volume,size=1,bootindex=1 --flavor 1  --security-group webservers --image 5ba4945d-d190-4205-b50c-3c957410061b ji1


and see ,so basically we can switch to api layer validation to avoid 'ERROR' instance stuck there


| fault                                | {"message": "Build of instance 3eb1baef-50e6-4618-a1b8-fd8f8a0f1458 aborted: VolumeLimitExceeded: Maximum number of volumes allowed (1) exceeded for quota 'volumes'.", "code": 500, "details": "  File \"/opt/stack/nova/nova/compute/manager.py\", line 1840, in _do_build_and_run_instance |
|                                      |     filter_properties, request_spec)                                                                                                                                                                                                                                                          |
|                                      |   File \"/opt/stack/nova/nova/compute/manager.py\", line 2053, in _build_and_run_instance                                                                                                                                                                                                     |
|                                      |     bdms=block_device_mapping)                                                                                                                                                                                                                                                                |
|                                      |   File \"/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py\", line 220, in __exit__                                                                                                                                                                                               |
|                                      |     self.force_reraise()                                                                                                                                                                                                                                                                      |
|                                      |   File \"/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py\", line 196, in force_reraise                                                                                                                                                                                          |
|                                      |     six.reraise(self.type_, self.value, self.tb)                                                                                                                                                                                                                                              |
|                                      |   File \"/opt/stack/nova/nova/compute/manager.py\", line 2005, in _build_and_run_instance                                                                                                                                                                                                     |
|                                      |     block_device_mapping) as resources:                                                                                                                                                                                                                                                       |
|                                      |   File \"/usr/lib/python2.7/contextlib.py\", line 17, in __enter__