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[Bug 1615718] [NEW] Load balancer create failed when dns extension is loaded

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1615718@xxxxxxxxxxxxxxxxxx>
Date: Tue, 23 Aug 2016 13:13:07 -0000
Reply-to: Bug 1615718 <1615718@xxxxxxxxxxxxxxxxxx>
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when the dns extension enabled via ml2_conf.ini , the LB could not
create because of the below Error

in create port of loadbalancer_dbv2.py does not supply 'dns_name' as part of the port attributes
https://github.com/openstack/neutron-lbaas/blob/master/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py#L99

https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/extensions/dns_integration.py#L79
at 79 neutron throws the KeyError for 'dns_name'
Since during port_create 
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron/neutron/api/v2/base.py", line 485, in do_create
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    return obj_creator(request.context, **kwargs)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron-lbaas/neutron_lbaas/services/loadbalancer/plugin.py", line 691, in create_loadbalancer
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    allocate_vip=not driver.load_balancer.allocates_vip)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron-lbaas/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py", line 301, in create_loadbalancer
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    context.session.flush()
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    self.force_reraise()
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    six.reraise(self.type_, self.value, self.tb)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron-lbaas/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py", line 293, in create_loadbalancer
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    vip_address)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron-lbaas/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py", line 110, in _create_port_for_load_balancer
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    port = self._core_plugin.create_port(context, {'port': port_data})
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron/neutron/plugins/ml2/plugin.py", line 1163, in create_port
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    result, mech_context = self._create_port_db(context, port)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron/neutron/plugins/ml2/plugin.py", line 1134, in _create_port_db
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    self.extension_manager.process_create_port(context, attrs, result)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 894, in process_create_port
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    data, result)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 869, in _call_on_ext_drivers
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    {'name': driver.name, 'method': method_name})
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    self.force_reraise()
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    six.reraise(self.type_, self.value, self.tb)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron/neutron/plugins/ml2/managers.py", line 864, in _call_on_ext_drivers
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    getattr(driver.obj, method_name)(plugin_context, data, result)
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m  File "/opt/stack/neutron/neutron/plugins/ml2/extensions/dns_integration.py", line 78, in process_create_port
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m    if not request_data[dns.DNSNAME]:
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00mKeyError: 'dns_name'
^[[01;31m2016-08-22 05:13:28.941 TRACE neutron.api.v2.resource ^[[01;35m^[[00m

** Affects: neutron
     Importance: High
         Status: New

-- 
Load balancer create failed when dns extension is loaded 
https://bugs.launchpad.net/bugs/1615718
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