Exception in dhcp app

[Yuli]

Hello

I got an exception when starting df-controller on Ubuntu 16 on latest version of devstack.

2016-07-31 13:13:27.337 INFO dragonflow.db.api_nb [-] Pushing Update to Queue: Action:create, Table:ovsinterface, Key:6b23f50b-0789-4b5b-a576-193d72055fb2 Value:uuid:6b23f50b-0789-4b5b-a576-193d72055fb2, ofport:65534, name:br-ex, admin_state:up, type:bridge, iface_id:, peer:, attached_mac:, remote_ip:, tunnel_type: Topic:None
2016-07-31 13:13:27.338 INFO dragonflow.db.api_nb [-] Pushing Update to Queue: Action:sync_finished, Table:ovsinterface, Key:None Value:None Topic:None
2016-07-31 13:13:27.341 CRITICAL neutron [-] AttributeError: 'module' object has no attribute 'core_opts'

2016-07-31 13:13:27.341 TRACE neutron Traceback (most recent call last):
2016-07-31 13:13:27.341 TRACE neutron File "/usr/local/bin/df-local-controller", line 10, in <module>
2016-07-31 13:13:27.341 TRACE neutron sys.exit(main())
2016-07-31 13:13:27.341 TRACE neutron File "/opt/stack/dragonflow/dragonflow/cmd/eventlet/df_local_controller.py", line 17, in main
2016-07-31 13:13:27.341 TRACE neutron df_local_controller.main()
2016-07-31 13:13:27.341 TRACE neutron File "/opt/stack/dragonflow/dragonflow/controller/df_local_controller.py", line 550, in main
2016-07-31 13:13:27.341 TRACE neutron controller.run()
2016-07-31 13:13:27.341 TRACE neutron File "/opt/stack/dragonflow/dragonflow/controller/df_local_controller.py", line 95, in run
2016-07-31 13:13:27.341 TRACE neutron self.open_flow_app.start()
2016-07-31 13:13:27.341 TRACE neutron File "/opt/stack/dragonflow/dragonflow/controller/ryu_base_app.py", line 59, in start
2016-07-31 13:13:27.341 TRACE neutron nb_api=self.nb_api)
2016-07-31 13:13:27.341 TRACE neutron File "/opt/stack/dragonflow/dragonflow/controller/ryu_base_app.py", line 63, in load
2016-07-31 13:13:27.341 TRACE neutron self.dispatcher.load(*args, **kwargs)
2016-07-31 13:13:27.341 TRACE neutron File "/opt/stack/dragonflow/dragonflow/controller/dispatcher.py", line 33, in load
2016-07-31 13:13:27.341 TRACE neutron app = app_class(*args, **kwargs)
2016-07-31 13:13:27.341 TRACE neutron File "/opt/stack/dragonflow/dragonflow/controller/dhcp_app.py", line 66, in __init__
2016-07-31 13:13:27.341 TRACE neutron cfg.CONF.register_opts(common_config.core_opts)
2016-07-31 13:13:27.341 TRACE neutron AttributeError: 'module' object has no attribute 'core_opts'
2016-07-31 13:13:27.341 TRACE neutron
2016-07-31 13:13:27.343 INFO oslo_rootwrap.client [-] Stopping rootwrap daemon process with pid=26248
df-controller failed to start

[Li Ma (nick-ma-z)]

https://review.openstack.org/#/c/349259/