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[Bug 1825020] [NEW] resize of instance, that was booted from volume, trigger image size check then fails resize

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Public bug reported:

Brief Description
-----------------
resize of instance, that was booted from volume, trigger image size check then fails resize

Severity
--------
standard

Steps to Reproduce
------------------

1. Create two flavors based on originating flavor and destination flavor

| 15566866-06d7-487a-b087-9fe928ec8c00 | flavor                 | 1024       | 4    | 0         |      | 1     | 1.0         | True   
 flavor:extra_specs                   | {"stx_storage": "remote", "hw:mem_page_size": "2048"}  
flavor:ram                           | 1024                                                                             
|
| flavor:swap                          | 0                                                                                
|
| flavor:vcpus                         | 1
| flavor:disk                          | 4                                                                                
|
| flavor:ephemeral                     | 0


| 20ebe3fe-c1a3-4e62-8c34-10c435f27112 | flavor-2 | 1024       | 1    | 1         | 512  | 1     | 1.0         | True   
| extra_specs                | {"stx_storage": "remote", "hw:mem_page_size": "2048"} 
name                       | flavor-2
| ram                        | 1024
| swap                       | 512 
| vcpus                      | 1  
| disk                       | 1  

2. Boot instance from volume with an originating flavor
OS-EXT-SRV-ATTR:hostname             | tenant2-vm-13
id                                   | 04f43c9e-d3fa-46c4-9605-c0d1cf8dda71
os-extended-volumes:volumes_attached | [{"id": "672aaa60-1086-45ce-8650-8195aa8dd0da", "delete_on_termination": false}
OS-EXT-SRV-ATTR:hypervisor_hostname  | compute-0 
OS-EXT-SRV-ATTR:instance_name        | instance-000000a4

3. Resize instance to destination flavor that has smaller disk size.
Confirm resize.

[2019-04-14 10:05:04,590]
nova resize --poll 04f43c9e-d3fa-46c4-9605-c0d1cf8dda71 20ebe3fe-c1a3-4e62-8c34-10c435f27112'


Expected Behavior
------------------
Did not expect resize of instance, that was booted from volume, to trigger image size check


Actual Behavior
----------------
[2019-04-14 10:05:06,427]
Resize of instance booted from volume inadvertently triggered the image size check and results in a ClientExpection related to FlavorDiskSmalerThanMinDisk
ERROR (ClientException): Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<class 'nova.exception.FlavorDiskSmallerThanMinDisk'> (HTTP 500


nfv-vim.log (controller-0)

2019-04-14T10:05:06.228 controller-0
VIM_Thread[244649]     INFO
_instance_director.py.151   Instance action allowed for tenant2-vm-13,
action_type=resize

2019-04-14T10:05:06.228 controller-0
VIM_Thread[244649]    DEBUG
_instance.py.1968  Resize instance tenant2-vm-13.

2019-04-14T10:05:06.228 controller-0
VIM_Thread[244649]     INFO
_instance_state_initial.py.36    Exiting state (initial) for
tenant2-vm-13.

2019-04-14T10:05:06.229 controller-0                           VIM_Thread[244649]     INFO                  _instance_state_resize.py.27    Entering state (resize) for tenant2-vm-13.
2019-04-14T10:05:06.229 controller-0                           
VIM_Thread[244649]    DEBUG                        nfvi_compute_api.py.3418  Instance action rest-api post path: /v2.1/6b4999fd6e414ae1b3eace662eb2ed84/servers/04f43c9e-d3fa-46c4-9605-c0d1cf8dda71/action.
2019-04-14T10:05:06.270 controller-0                 
VIM_Event-Log_Thread[244975]     INFO                                      fm.py.379   Generated customer log, fm_uuid=621d5dc6-79a8-40a7-814f-2809cbadb859.

2019-04-14T10:05:06.375 controller-0
VIM_Thread[244649]    ERROR Caught exception while trying to resize an
instance, error=[OpenStack Rest-API Exception: method=POST, url=http
://nova-
api.openstack.svc.cluster.local:8774/v2.1/6b4999fd6e414ae1b3eace662eb2ed84/servers
/04f43c9e-d3fa-46c4-9605-c0d1cf8dda71/action, headers={'wrs-header':
'true', 'Content-Type': 'application/json', 'X-OpenStack-Nova-API-
Version': '2.72'}, body={"resize": {"flavorRef": "20ebe3fe-
c1a3-4e62-8c34-10c435f27112"}}, status_code=500, reason=HTTP Error 500:
Internal Server Error, response_headers=[('Content-Length', '217'), ('X
-Compute-Request-Id', 'req-aca6c954-1171-48ce-9286-3e9b952481d6'),
('Vary', 'OpenStack-API-Version, X-OpenStack-Nova-API-Version'),
('Openstack-Api-Version', 'compute 2.72'), ('X-Openstack-Nova-Api-
Version', '2.72'), ('Date', 'Sun, 14 Apr 2019 10:05:06 GMT'), ('Content-
Type', 'application/json; charset=UTF-8'), ('X-Openstack-Request-Id',
'req-aca6c954-1171-48ce-9286-3e9b952481d6')],
response_body={"computeFault": {"message": "Unexpected API Error. Please
report this at http://bugs.launchpad.net/nova/ and attach the Nova API
log if possible.\n<class
'nova.exception.FlavorDiskSmallerThanMinDisk'>", "code": 500}}].

Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/nfv_plugins/nfvi_plugins/nfvi_compute_api.py", line 2127, in resize_instance
    future.result = (yield)
OpenStackRestAPIException: [OpenStack Rest-API Exception: method=POST, url=http://nova-api.openstack.svc.cluster.local:8774/v2.1/6b4999fd6e414ae1b3eace662eb2ed84/servers/04f43c9e-d3fa-46c4-9605-c0d1cf8dda71/action, headers={'wrs-header': 'true', 'Content-Type': 'application/json', 'X-OpenStack-Nova-API-Version': '2.72'}, body={"resize": {"flavorRef": "20ebe3fe-c1a3-4e62-8c34-10c435f27112"}}, status_code=500, reason=HTTP Error 500: Internal Server Error, response_headers=[('Content-Length', '217'), ('X-Compute-Request-Id', 'req-aca6c954-1171-48ce-9286-3e9b952481d6'), ('Vary', 'OpenStack-API-Version, X-OpenStack-Nova-API-Version'), ('Openstack-Api-Version', 'compute 2.72'), ('X-Openstack-Nova-Api-Version', '2.72'), 
('Date', 'Sun, 14 Apr 2019 10:05:06 GMT'), ('Content-Type', 'application/json; charset=UTF-8'), ('X-Openstack-Request-Id', 'req-aca6c954-1171-48ce-9286-3e9b952481d6')], response_body={"computeFault": {"message": "Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.\n<class 'nova.exception.FlavorDiskSmallerThanMinDisk'>", "code": 500}}]

2019-04-14T10:05:06.377 controller-0                           VIM_Thread[244649]     INFO                        nfvi_compute_api.py.918   Sent response for request 8b44ee79-9371-479b-83a4-50534ddef1c7.
2019-04-14T10:05:06.377 controller-0                           
VIM_Thread[244649]    
DEBUG                     _instance_task_work.py.426   Resize-Instance callback for tenant2-vm-13, response={'completed': False, 'reason': "unexpected api error. please report this at http://bugs.launchpad.net/nova/ and attach the nova api log if possible.\n<class 'nova.exception.flavordisksmallerthanmindisk'>"}.
2019-04-14T10:05:06.378 controller-0                           VIM_Thread[244649]    DEBUG                         _instance_tasks.py.367   Task (resize-instance_tenant2-vm-13) complete.

2019-04-14T10:05:06.378 controller-0                           VIM_Thread[244649]     INFO                  _instance_state_resize.py.68    Resize failed for tenant2-vm-13.
2019-04-14T10:05:06.378 controller-0                          
 VIM_Thread[244649]    
DEBUG                               _instance.py.2179  Resize failed for instance tenant2-vm-13, reason=unexpected api error. please report this at http://bugs.launchpad.net/nova/ and attach the nova api log if possible.
<class 'nova.exception.flavordisksmallerthanmindisk'>.


Reproducibility
---------------
yes

System Configuration
--------------------
storage
(Lab: IP_20_27 20190414 10:02:43 test_resize_vm_positive[remote-4_0_0-1_1_512-volume])


Branch/Pull Time/Commit
--------------------
Load: 20190410T013000Z
Job: STX_build_master_master

** Affects: nova
     Importance: Undecided
         Status: New

-- 
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https://bugs.launchpad.net/bugs/1825020

Title:
  resize of instance, that was booted from volume, trigger image size
  check then fails resize

Status in OpenStack Compute (nova):
  New

Bug description:
  Brief Description
  -----------------
  resize of instance, that was booted from volume, trigger image size check then fails resize

  Severity
  --------
  standard

  Steps to Reproduce
  ------------------

  1. Create two flavors based on originating flavor and destination
  flavor

  | 15566866-06d7-487a-b087-9fe928ec8c00 | flavor                 | 1024       | 4    | 0         |      | 1     | 1.0         | True   
   flavor:extra_specs                   | {"stx_storage": "remote", "hw:mem_page_size": "2048"}  
  flavor:ram                           | 1024                                                                             
  |
  | flavor:swap                          | 0                                                                                
  |
  | flavor:vcpus                         | 1
  | flavor:disk                          | 4                                                                                
  |
  | flavor:ephemeral                     | 0

  
  | 20ebe3fe-c1a3-4e62-8c34-10c435f27112 | flavor-2 | 1024       | 1    | 1         | 512  | 1     | 1.0         | True   
  | extra_specs                | {"stx_storage": "remote", "hw:mem_page_size": "2048"} 
  name                       | flavor-2
  | ram                        | 1024
  | swap                       | 512 
  | vcpus                      | 1  
  | disk                       | 1  

  2. Boot instance from volume with an originating flavor
  OS-EXT-SRV-ATTR:hostname             | tenant2-vm-13
  id                                   | 04f43c9e-d3fa-46c4-9605-c0d1cf8dda71
  os-extended-volumes:volumes_attached | [{"id": "672aaa60-1086-45ce-8650-8195aa8dd0da", "delete_on_termination": false}
  OS-EXT-SRV-ATTR:hypervisor_hostname  | compute-0 
  OS-EXT-SRV-ATTR:instance_name        | instance-000000a4

  3. Resize instance to destination flavor that has smaller disk size.
  Confirm resize.

  [2019-04-14 10:05:04,590]
  nova resize --poll 04f43c9e-d3fa-46c4-9605-c0d1cf8dda71 20ebe3fe-c1a3-4e62-8c34-10c435f27112'


  Expected Behavior
  ------------------
  Did not expect resize of instance, that was booted from volume, to trigger image size check

  
  Actual Behavior
  ----------------
  [2019-04-14 10:05:06,427]
  Resize of instance booted from volume inadvertently triggered the image size check and results in a ClientExpection related to FlavorDiskSmalerThanMinDisk
  ERROR (ClientException): Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
  <class 'nova.exception.FlavorDiskSmallerThanMinDisk'> (HTTP 500

  
  nfv-vim.log (controller-0)

  2019-04-14T10:05:06.228 controller-0
  VIM_Thread[244649]     INFO
  _instance_director.py.151   Instance action allowed for tenant2-vm-13,
  action_type=resize

  2019-04-14T10:05:06.228 controller-0
  VIM_Thread[244649]    DEBUG
  _instance.py.1968  Resize instance tenant2-vm-13.

  2019-04-14T10:05:06.228 controller-0
  VIM_Thread[244649]     INFO
  _instance_state_initial.py.36    Exiting state (initial) for
  tenant2-vm-13.

  2019-04-14T10:05:06.229 controller-0                           VIM_Thread[244649]     INFO                  _instance_state_resize.py.27    Entering state (resize) for tenant2-vm-13.
  2019-04-14T10:05:06.229 controller-0                           
  VIM_Thread[244649]    DEBUG                        nfvi_compute_api.py.3418  Instance action rest-api post path: /v2.1/6b4999fd6e414ae1b3eace662eb2ed84/servers/04f43c9e-d3fa-46c4-9605-c0d1cf8dda71/action.
  2019-04-14T10:05:06.270 controller-0                 
  VIM_Event-Log_Thread[244975]     INFO                                      fm.py.379   Generated customer log, fm_uuid=621d5dc6-79a8-40a7-814f-2809cbadb859.

  2019-04-14T10:05:06.375 controller-0
  VIM_Thread[244649]    ERROR Caught exception while trying to resize an
  instance, error=[OpenStack Rest-API Exception: method=POST, url=http
  ://nova-
  api.openstack.svc.cluster.local:8774/v2.1/6b4999fd6e414ae1b3eace662eb2ed84/servers
  /04f43c9e-d3fa-46c4-9605-c0d1cf8dda71/action, headers={'wrs-header':
  'true', 'Content-Type': 'application/json', 'X-OpenStack-Nova-API-
  Version': '2.72'}, body={"resize": {"flavorRef": "20ebe3fe-
  c1a3-4e62-8c34-10c435f27112"}}, status_code=500, reason=HTTP Error
  500: Internal Server Error, response_headers=[('Content-Length',
  '217'), ('X-Compute-Request-Id', 'req-
  aca6c954-1171-48ce-9286-3e9b952481d6'), ('Vary', 'OpenStack-API-
  Version, X-OpenStack-Nova-API-Version'), ('Openstack-Api-Version',
  'compute 2.72'), ('X-Openstack-Nova-Api-Version', '2.72'), ('Date',
  'Sun, 14 Apr 2019 10:05:06 GMT'), ('Content-Type', 'application/json;
  charset=UTF-8'), ('X-Openstack-Request-Id', 'req-
  aca6c954-1171-48ce-9286-3e9b952481d6')],
  response_body={"computeFault": {"message": "Unexpected API Error.
  Please report this at http://bugs.launchpad.net/nova/ and attach the
  Nova API log if possible.\n<class
  'nova.exception.FlavorDiskSmallerThanMinDisk'>", "code": 500}}].

  Traceback (most recent call last):
    File "/usr/lib64/python2.7/site-packages/nfv_plugins/nfvi_plugins/nfvi_compute_api.py", line 2127, in resize_instance
      future.result = (yield)
  OpenStackRestAPIException: [OpenStack Rest-API Exception: method=POST, url=http://nova-api.openstack.svc.cluster.local:8774/v2.1/6b4999fd6e414ae1b3eace662eb2ed84/servers/04f43c9e-d3fa-46c4-9605-c0d1cf8dda71/action, headers={'wrs-header': 'true', 'Content-Type': 'application/json', 'X-OpenStack-Nova-API-Version': '2.72'}, body={"resize": {"flavorRef": "20ebe3fe-c1a3-4e62-8c34-10c435f27112"}}, status_code=500, reason=HTTP Error 500: Internal Server Error, response_headers=[('Content-Length', '217'), ('X-Compute-Request-Id', 'req-aca6c954-1171-48ce-9286-3e9b952481d6'), ('Vary', 'OpenStack-API-Version, X-OpenStack-Nova-API-Version'), ('Openstack-Api-Version', 'compute 2.72'), ('X-Openstack-Nova-Api-Version', '2.72'), 
  ('Date', 'Sun, 14 Apr 2019 10:05:06 GMT'), ('Content-Type', 'application/json; charset=UTF-8'), ('X-Openstack-Request-Id', 'req-aca6c954-1171-48ce-9286-3e9b952481d6')], response_body={"computeFault": {"message": "Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.\n<class 'nova.exception.FlavorDiskSmallerThanMinDisk'>", "code": 500}}]

  2019-04-14T10:05:06.377 controller-0                           VIM_Thread[244649]     INFO                        nfvi_compute_api.py.918   Sent response for request 8b44ee79-9371-479b-83a4-50534ddef1c7.
  2019-04-14T10:05:06.377 controller-0                           
  VIM_Thread[244649]    
  DEBUG                     _instance_task_work.py.426   Resize-Instance callback for tenant2-vm-13, response={'completed': False, 'reason': "unexpected api error. please report this at http://bugs.launchpad.net/nova/ and attach the nova api log if possible.\n<class 'nova.exception.flavordisksmallerthanmindisk'>"}.
  2019-04-14T10:05:06.378 controller-0                           VIM_Thread[244649]    DEBUG                         _instance_tasks.py.367   Task (resize-instance_tenant2-vm-13) complete.

  2019-04-14T10:05:06.378 controller-0                           VIM_Thread[244649]     INFO                  _instance_state_resize.py.68    Resize failed for tenant2-vm-13.
  2019-04-14T10:05:06.378 controller-0                          
   VIM_Thread[244649]    
  DEBUG                               _instance.py.2179  Resize failed for instance tenant2-vm-13, reason=unexpected api error. please report this at http://bugs.launchpad.net/nova/ and attach the nova api log if possible.
  <class 'nova.exception.flavordisksmallerthanmindisk'>.

  
  Reproducibility
  ---------------
  yes

  System Configuration
  --------------------
  storage
  (Lab: IP_20_27 20190414 10:02:43 test_resize_vm_positive[remote-4_0_0-1_1_512-volume])

  
  Branch/Pull Time/Commit
  --------------------
  Load: 20190410T013000Z
  Job: STX_build_master_master

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