Integration with latest openstack release(2024.1)

[salimep]

Dears,

we are hitting an issue while integrating with latest newtron release ( error details are given in below) , its shows missing class exceptions

025-10-11 16:32:17.718 7 INFO neutron.manager [-] Loading core plugin: neutron_plugin_contrail.plugins.opencontrail.contrail_plugin.NeutronPluginContrailCoreV2 2025-10-11 16:32:17.901 7 ERROR neutron.service [-] Unrecoverable error: please check log for details.: AttributeError: module 'neutron_lib.plugins.ml2.api' has no attribute 'PortBindingBaseMixin' 2025-10-11 16:32:17.901 7 ERROR neutron.service Traceback (most recent call last): 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/neutron_lib/utils/runtime.py", line 113, in load_class_by_alias_or_classname 2025-10-11 16:32:17.901 7 ERROR neutron.service mgr = driver.DriverManager( 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/stevedore/driver.py", line 54, in __init__ 2025-10-11 16:32:17.901 7 ERROR neutron.service super(DriverManager, self).__init__( 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/stevedore/named.py", line 89, in __init__ 2025-10-11 16:32:17.901 7 ERROR neutron.service self._init_plugins(extensions) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/stevedore/driver.py", line 113, in _init_plugins 2025-10-11 16:32:17.901 7 ERROR neutron.service raise NoMatches('No %r driver found, looking for %r' % 2025-10-11 16:32:17.901 7 ERROR neutron.service stevedore.exception.NoMatches: No 'neutron.core_plugins' driver found, looking for 'neutron_plugin_contrail.plugins.opencontrail.contrail_plugin.NeutronPluginContrailCoreV2' 2025-10-11 16:32:17.901 7 ERROR neutron.service 2025-10-11 16:32:17.901 7 ERROR neutron.service During handling of the above exception, another exception occurred: 2025-10-11 16:32:17.901 7 ERROR neutron.service 2025-10-11 16:32:17.901 7 ERROR neutron.service Traceback (most recent call last): 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/neutron/service.py", line 86, in serve_wsgi 2025-10-11 16:32:17.901 7 ERROR neutron.service service.start() 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/neutron/service.py", line 64, in start 2025-10-11 16:32:17.901 7 ERROR neutron.service self.wsgi_app = _run_wsgi(self.app_name) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/neutron/service.py", line 326, in _run_wsgi 2025-10-11 16:32:17.901 7 ERROR neutron.service app = config.load_paste_app(app_name) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/neutron/common/config.py", line 145, in load_paste_app 2025-10-11 16:32:17.901 7 ERROR neutron.service app = loader.load_app(app_name) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/oslo_service/wsgi.py", line 351, in load_app 2025-10-11 16:32:17.901 7 ERROR neutron.service return deploy.loadapp("config:%s" % self.config_path, name=name) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/deploy/loadwsgi.py", line 246, in loadapp 2025-10-11 16:32:17.901 7 ERROR neutron.service return loadobj(APP, uri, name=name, **kw) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/deploy/loadwsgi.py", line 271, in loadobj 2025-10-11 16:32:17.901 7 ERROR neutron.service return context.create() 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/deploy/loadwsgi.py", line 738, in create 2025-10-11 16:32:17.901 7 ERROR neutron.service return self.object_type.invoke(self) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/deploy/loadwsgi.py", line 129, in invoke 2025-10-11 16:32:17.901 7 ERROR neutron.service return fix_call( 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/deploy/util.py", line 61, in fix_call 2025-10-11 16:32:17.901 7 ERROR neutron.service val = callable(*args, **kw) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/urlmap.py", line 31, in urlmap_factory 2025-10-11 16:32:17.901 7 ERROR neutron.service app = loader.get_app(app_name, global_conf=global_conf) 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/deploy/loadwsgi.py", line 352, in get_app 2025-10-11 16:32:17.901 7 ERROR neutron.service return self.app_context(name=name, global_conf=global_conf).create() 2025-10-11 16:32:17.901 7 ERROR neutron.service File "/var/lib/kolla/venv/lib64/python3.9/site-packages/paste/deploy/loadwsgi.py", line 738, in create

[mkraposhin]

Just added this from linkedin conversation to provide more details about this problem:

openstack community has removed the support of neutron plugin for the contrail api we were trying integrate 2024.1 openstack release with latest neutron plugin which cloned from the opensdn repo getting missing class exception on neutron server container kindly advise is there any on going project going on among the community for adoption with latest neutorn?

[aignatov]

Here is patch that fixes the issue: https://gerrit.opensdn.io/c/opensdn-io/tf-neutron-plugin/+/2311

[mkraposhin]

Thank you, @aignatov . @salimep , looks like the issue has been solved. Could you please check the amendment and close the issue?