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[Fernando Royo <1972278@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Some jobs in zuul are reporting this error:

Failed to import test module: ovn_octavia_provider.tests.functional.test_integration
Traceback (most recent call last):
  File "/usr/lib/python3.8/unittest/loader.py", line 436, in _find_test_path
    module = self._get_module_from_name(name)
  File "/usr/lib/python3.8/unittest/loader.py", line 377, in _get_module_from_name
    __import__(name)
  File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/ovn_octavia_provider/tests/functional/test_integration.py", line 18, in <module>
    from ovn_octavia_provider.tests.functional import base as ovn_base
  File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/ovn_octavia_provider/tests/functional/base.py", line 31, in <module>
    from neutron.tests.functional import base
  File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/neutron/tests/functional/base.py", line 40, in <module>
    from neutron.conf.plugins.ml2.drivers.ovn import ovn_conf
  File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/neutron/conf/plugins/ml2/drivers/ovn/ovn_conf.py", line 212, in <module>
    cfg.CONF.register_opts(ovn_opts, group='ovn')
  File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/oslo_config/cfg.py", line 2077, in __inner
...
    if _is_opt_registered(self._opts, opt):
  File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/oslo_config/cfg.py", line 356, in _is_opt_registered
    raise DuplicateOptError(opt.name)
oslo_config.cfg.DuplicateOptError: duplicate option: ovn_nb_connection

Basically the OVN octavia provider is registering opts a soon modules
(driver, agent or helper) are imported so when tests run the setUp they
are triggered by a Duplicate option error because they are based on
TestOVNFunctionalBase from Neutron where same options are loaded. Error
doesn't appear in running environment as neutron and ovn-octavia-
provider (octavia) are running in separate process but in zuul jobs they
collide.

** Affects: neutron
     Importance: Undecided
     Assignee: Fernando Royo (froyoredhat)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Fernando Royo (froyoredhat)

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https://bugs.launchpad.net/bugs/1972278

Title:
  ovn-octavia-provider oslo config options colliding with neutron ones

Status in neutron:
  New

Bug description:
  Some jobs in zuul are reporting this error:

  Failed to import test module: ovn_octavia_provider.tests.functional.test_integration
  Traceback (most recent call last):
    File "/usr/lib/python3.8/unittest/loader.py", line 436, in _find_test_path
      module = self._get_module_from_name(name)
    File "/usr/lib/python3.8/unittest/loader.py", line 377, in _get_module_from_name
      __import__(name)
    File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/ovn_octavia_provider/tests/functional/test_integration.py", line 18, in <module>
      from ovn_octavia_provider.tests.functional import base as ovn_base
    File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/ovn_octavia_provider/tests/functional/base.py", line 31, in <module>
      from neutron.tests.functional import base
    File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/neutron/tests/functional/base.py", line 40, in <module>
      from neutron.conf.plugins.ml2.drivers.ovn import ovn_conf
    File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/neutron/conf/plugins/ml2/drivers/ovn/ovn_conf.py", line 212, in <module>
      cfg.CONF.register_opts(ovn_opts, group='ovn')
    File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/oslo_config/cfg.py", line 2077, in __inner
  ...
      if _is_opt_registered(self._opts, opt):
    File "/home/zuul/src/opendev.org/openstack/ovn-octavia-provider/.tox/dsvm-functional/lib/python3.8/site-packages/oslo_config/cfg.py", line 356, in _is_opt_registered
      raise DuplicateOptError(opt.name)
  oslo_config.cfg.DuplicateOptError: duplicate option: ovn_nb_connection

  Basically the OVN octavia provider is registering opts a soon modules
  (driver, agent or helper) are imported so when tests run the setUp
  they are triggered by a Duplicate option error because they are based
  on TestOVNFunctionalBase from Neutron where same options are loaded.
  Error doesn't appear in running environment as neutron and ovn-
  octavia-provider (octavia) are running in separate process but in zuul
  jobs they collide.

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