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[melanie witt <1420192@xxxxxxxxxxxxxxxxxx>]

Hi Park, the nova part of this bug is about nova api stack tracing when
it receives interface attachment parameters. It is not yet fixed. The
os-interface api should validate the request or otherwise check return
values and raise an appropriate exception instead.

Excerpt of example request:

http://10.0.2.15:8774/v2/46d0d928a3814510ab6ab8f65380381b/servers
/37c084fb-ecea-4a77-86f5-d2ce67be48bd/os-interface -H "User-Agent:
python-novaclient" -H "Content-Type: application/json" -H "Accept:
application/json" -H "X-Auth-Token:
{SHA1}0448c6b841247e17e04a460a1479ac16cff64903" -d
'{"interfaceAttachment": {}}'

Error in n-api.log:

2015-04-30 22:50:00.014 INFO nova.api.openstack.compute.contrib.attach_interfaces [req-6aac752c-103a-4a49-8d25-32b69bc89cf9 admin admin] [instance: 37c084fb-ecea-4a77-86f5-d2ce67be48bd] Attach interface
2015-04-30 22:50:00.014 ERROR nova.api.openstack.wsgi [req-6aac752c-103a-4a49-8d25-32b69bc89cf9 admin admin] Exception handling resource: 'NoneType' object has no attribute '__getitem__'
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi Traceback (most recent call last):
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi   File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 821, in _process_stack
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi     action_result = self.dispatch(meth, request, action_args)
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi   File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 911, in dispatch
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi     return method(req=request, **action_args)
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi   File "/opt/stack/nova/nova/api/openstack/compute/contrib/attach_interfaces.py", line 145, in create
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi     return self.show(req, server_id, vif['id'])
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi TypeError: 'NoneType' object has no attribute '__getitem__'
2015-04-30 22:50:00.014 TRACE nova.api.openstack.wsgi


** Changed in: nova
       Status: Fix Released => Confirmed

** Changed in: nova
     Assignee: Park (jianlonghei) => (unassigned)

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https://bugs.launchpad.net/bugs/1420192

Title:
  Nova interface-attach command has optional arguments to add network
  details. It should be positional arguments otherwise command fails.

Status in OpenStack Compute (Nova):
  Confirmed
Status in Python client library for Nova:
  Confirmed

Bug description:
  On execution of nova interface-attach command without optional
  arguments command fails.

  root@ubuntu:~# nova interface-attach vm1
  ERROR (ClientException): Failed to attach interface (HTTP 500) (Request-ID: req-ebca9af6-8d2f-4f68-8a80-ad002b03c2fc)
  root@ubuntu:~# 

  To add a network interface atleast one amongst the optional arguments
  must be provided. Thus, help message needs to be modified.

  root@ubuntu:~# nova help interface-attach
  usage: nova interface-attach [--port-id <port_id>] [--net-id <net_id>]
                               [--fixed-ip <fixed_ip>]
                               <server>

  Attach a network interface to a server.

  Positional arguments:
    <server>               Name or ID of server.

  Optional arguments:
    --port-id <port_id>    Port ID.
    --net-id <net_id>      Network ID
    --fixed-ip <fixed_ip>  Requested fixed IP.

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