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Reviewed:  https://review.openstack.org/508802
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=f1a0557da4fbd7baa9196cb5c0ccdd7ebb16ecdf
Submitter: Zuul
Branch:    master

commit f1a0557da4fbd7baa9196cb5c0ccdd7ebb16ecdf
Author: Hongbin Lu <hongbin.lu@xxxxxxxxxx>
Date:   Mon Oct 2 04:21:26 2017 +0000

    Fix wrapping of neutron forbidden error
    
    In neutronv2 api, the neutron forbidden error is not wrapped
    correctly. The exception class expects the first parameter as
    the error message but an exception object is passed.
    
    Closes-Bug: #1720726
    Change-Id: I6e88333427ec2befe2122274b02775f013404e30


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1720726

Title:
  Attach public network return 500

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Description
  ===========
  If policy allow attaching external network, Attach a 'public' network return 500.

  Steps to reproduce
  ==================
  1. Run devstack with default configuration.
  2. Add policy.json to allow attaching external network. 
  3. Source demo credential
  4. Create an instance and wait for the instance to become active. 
  5. Attach the instance with the 'public' network.

  $ nova interface-attach --net-id 2b7e8a86-c5c6-4396-84bc-14cdc741e033 test
  ERROR (ClientException): Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
  <type 'exceptions.TypeError'> (HTTP 500) (Request-ID: req-3e353c62-a356-4d7d-bd73-28cf4406e447)

  Expected result
  ===============
  Nova should return 4xx response

  Actual result
  =============
  Nova returned 500 response

  Environment
  ===========
  Devstack with master

  Logs & Configs
  ==============
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server [None req-3e125907-0419-418a-a03c-154b99e97610 demo demo] Exception during message handling: TypeError: <class 'neutronclient.common.exceptions.Forbidden'> can't be encoded
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 160, in _process_incoming
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 222, in dispatch
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 192, in _do_dispatch
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/exception_wrapper.py", line 76, in wrapped
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     function_name, call_dict, binary)
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     self.force_reraise()
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb)
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/exception_wrapper.py", line 67, in wrapped
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     return f(self, context, *args, **kw)
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/manager.py", line 217, in decorated_function
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     kwargs['instance'], e, sys.exc_info())
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/utils.py", line 99, in add_instance_fault_from_exc
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     fault_obj.update(exception_to_dict(fault, message=fault_message))
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/utils.py", line 76, in exception_to_dict
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     u_message = utils.safe_truncate(message, 255)
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/utils.py", line 1193, in safe_truncate
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     b_value = encodeutils.safe_encode(value)[:length]
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/encodeutils.py", line 85, in safe_encode
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server     raise TypeError("%s can't be encoded" % type(text))
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server TypeError: <class 'neutronclient.common.exceptions.Forbidden'> can't be encoded
  Oct 02 04:39:13 testzun nova-compute[24239]: ERROR oslo_messaging.rpc.server
  Oct 02 04:39:13 testzun devstack@n-api.service[24253]: ERROR nova.api.openstack.extensions [None req-3e125907-0419-418a-a03c-154b99e97610 demo demo] Unexpected exception in API method: TypeError: <class 'neutronclient.common.exceptions.Forbidden'> can't be encoded

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