[Bug 1637671] Re: DRAC get_bios_config() vendor passthru causes AttributeError exception

[James Page]

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https://bugs.launchpad.net/bugs/1637671

Title:
  DRAC get_bios_config() vendor passthru causes AttributeError exception

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive newton series:
  Triaged
Status in Ironic:
  Fix Released
Status in ironic package in Ubuntu:
  Fix Released

Bug description:
  Seen in stable/newton.

  The DRAC driver's (pxe_drac) get_bios_config() vendor passthru method
  raises an AttributeError exception. It no longer returns the current
  BIOS configuration. This is a regression from stable/mitaka.

  Triage found that get_bios_config() mistakenly treats the value
  returned by python-dracclient's list_bios_settings() as containing
  named tuples. When it calls the namedtuple _asdict() method, an
  AttributeError exception is raised.

  It shows up in the ironic-conductor.log as:

  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base [req-45370baa-7511-4901-9784-da5a90af4f8b - - - - -] vendor_passthru failed with method get_bios_config
  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base Traceback (most recent call last):
  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base   File "/usr/lib/python2.7/site-packages/ironic/drivers/base.py", line 692, in passthru_handler
  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base     return func(*args, **kwargs)
  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base   File "/usr/lib/python2.7/site-packages/ironic/drivers/modules/drac/vendor_passthru.py", line 61, in get_bios_config
  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base     bios_attrs[name] = bios_attr._asdict()
  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base AttributeError: 'BIOSStringAttribute' object has no attribute '_asdict'
  2016-10-27 16:04:13.147 1573 ERROR ironic.drivers.base
  2016-10-27 16:04:13.153 1573 DEBUG ironic.conductor.task_manager [req-45370baa-7511-4901-9784-da5a90af4f8b - - - - -] Successfully released exclusive lock for calling vendor passthru on node c54ad36d-5e2e-4593-9033-9996621803bb (lock was held 8.09 sec) release_resources /usr/lib/python2.7/site-packages/ironic/conductor/task_manager.py:331
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server [req-45370baa-7511-4901-9784-da5a90af4f8b - - - - -] Exception during message handling
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 133, in _process_incoming
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 150, in dispatch
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 121, in _do_dispatch
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/site-packages/ironic_lib/metrics.py", line 61, in wrapped
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server     result = f(*args, **kwargs)
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 199, in inner
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server     return func(*args, **kwargs)
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/site-packages/ironic/conductor/manager.py", line 271, in vendor_passthru
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server     ret = vendor_func(task, **info)
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/site-packages/ironic/drivers/base.py", line 699, in passthru_handler
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server     raise exception.VendorPassthruException(message=e)
  2016-10-27 16:04:13.153 1573 ERROR oslo_messaging.rpc.server VendorPassthruException: 'BIOSStringAttribute' object has no attribute '_asdict'

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