[K8s] Build 3049: contrail-kube-manager Traceback NameError: global name 'sg_fq_name' is not defined

[chhandak]

Description:
When restarting contrail-kube-manager with network policy configuration observing following traceback in contrail-kube-manager log

Steps:
1. Created rc with 3 pods in namespace development
2. Created defualy deny in namespace development
3. Created policy to accept traffic from port 80 on all pods of RC
4. Restart contrail-kube-manager

Traceback
------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_kubernetes.py", line 301, in vnc_process
    self.pod_mgr.process(event)
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_pod.py", line 473, in process
    self._network_policy_mgr.vnc_pod_add(event)
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_network_policy.py", line 98, in vnc_pod_add
    self._add_src_pod_2_policy(pod_id, policy_src_list)
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_network_policy.py", line 71, in _add_src_pod_2_policy
    sg_id = SecurityGroupKM.get_kube_fq_name_to_uuid(sg_fq_name)
NameError: global name 'sg_fq_name' is not defined

Full Traceback
-----------------
dca3c7'],
 u'obj_dict': {u'display_name': u'default__ctest-nginx-pod-43483522',
               u'fq_name': [u'ctest-nginx-pod-43483522__16f9653f-15df-11e7-94d5-0272fddca3c7'],
               u'id_perms': {u'created': u'2017-03-31T06:55:56.588990',
                             u'creator': None,
                             u'description': None,
"/var/log/contrail/contrail-kube-manager.log" 22711L, 2628590C 1,1 Top
 /usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_network_policy.py in _add_src_pod_2_policy(self=<kube_manager.vnc.vnc_network_policy.VncNetworkPolicy object>, pod_id=u'35b281c5-18b6-11e7-94d5-0272fddca3c7', policy_list=set([u'c88c1ec6-018b-48a4-a2d6-60d3be5650de']))
   69 sg_id = self.get_kube_fq_name_to_uuid(SecurityGroupKM, sg.namespace,
   70 sg_name)
   71 sg_id = SecurityGroupKM.get_kube_fq_name_to_uuid(sg_fq_name)
   72 if sg_id:
   73 self._sg_2_pod_link(pod_id, sg_id, 'ADD')
sg_id = None
global SecurityGroupKM = <class 'kube_manager.vnc.config_db.SecurityGroupKM'>
SecurityGroupKM.get_kube_fq_name_to_uuid = <bound method __metaclass__.get_kube_fq_name_to_...ss 'kube_manager.vnc.config_db.SecurityGroupKM'>>
sg_fq_name undefined
<type 'exceptions.NameError'>: global name 'sg_fq_name' is not defined
    __class__ = <type 'exceptions.NameError'>
    __delattr__ = <method-wrapper '__delattr__' of exceptions.NameError object>
    __dict__ = {}
    __doc__ = 'Name not found globally.'
    __format__ = <built-in method __format__ of exceptions.NameError object>
    __getattribute__ = <method-wrapper '__getattribute__' of exceptions.NameError object>
    __getitem__ = <method-wrapper '__getitem__' of exceptions.NameError object>
    __getslice__ = <method-wrapper '__getslice__' of exceptions.NameError object>
    __hash__ = <method-wrapper '__hash__' of exceptions.NameError object>
    __init__ = <method-wrapper '__init__' of exceptions.NameError object>
    __new__ = <built-in method __new__ of type object>
    __reduce__ = <built-in method __reduce__ of exceptions.NameError object>
    __reduce_ex__ = <built-in method __reduce_ex__ of exceptions.NameError object>
    __repr__ = <method-wrapper '__repr__' of exceptions.NameError object>
    __setattr__ = <method-wrapper '__setattr__' of exceptions.NameError object>
    __setstate__ = <built-in method __setstate__ of exceptions.NameError object>
    __sizeof__ = <built-in method __sizeof__ of exceptions.NameError object>
    __str__ = <method-wrapper '__str__' of exceptions.NameError object>
    __subclasshook__ = <built-in method __subclasshook__ of type object>
    __unicode__ = <built-in method __unicode__ of exceptions.NameError object>
    args = ("global name 'sg_fq_name' is not defined",)
    message = "global name 'sg_fq_name' is not defined"

The above is a description of an error in a Python program. Here is
the original traceback:

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_kubernetes.py", line 301, in vnc_process
    self.pod_mgr.process(event)
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_pod.py", line 473, in process
    self._network_policy_mgr.vnc_pod_add(event)
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_network_policy.py", line 98, in vnc_pod_add
    self._add_src_pod_2_policy(pod_id, policy_src_list)
  File "/usr/lib/python2.7/dist-packages/kube_manager/vnc/vnc_network_policy.py", line 71, in _add_src_pod_2_policy
    sg_id = SecurityGroupKM.get_kube_fq_name_to_uuid(sg_fq_name)
NameError: global name 'sg_fq_name' is not defined

04/04/2017 12:32:09 AM [contrail-kube-manager]: Processing event[EvIdleHoldTimerExpired] in state[Idle]
04/04/2017 12:32:09 AM [contrail-kube-manager]: Sandesh Client: Event[EvIdleHoldTimerExpired] => State[Idle] -> State[Connect]
04/04/2017 12:32:09 AM [contrail-kube-manager]: Processing event[EvCollectorUnknown] in state[Connect]
04/04/2017 12:32:09 AM [contrail-kube-manager]: Sandesh Client: Event[EvCollectorUnknown] => State[Connect] -> State[Disconnect]

[Yuvaraja Mariappan (ymariappan)]

https://review.opencontrail.org/#/c/30296/ will fix this issue as well.

Thanks,
Yuvaraja