At Ussuri Neutron API has begun doing writes directly to the Southbound DB, there does not appear to be a accompanying RBAC role for this, so do we need to give it access to the private port currently reserved for ovn-northd?

Example of an failed transaction:
2020-02-25 11:04:33.420 1520231 ERROR ovsdbapp.backend.ovs_idl.transaction [req-8315d356-f92f-4447-a47b-f724374cfc36 - - - - -] OVSDB Error: {"details":"RBAC rules for client \"juju-ef641e-1-lxd-2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis\".","error":"permission error"}
2020-02-25 11:04:33.420 1520231 ERROR ovsdbapp.backend.ovs_idl.transaction [req-fbf878ca-f0bc-465c-b173-882d695cb4aa 3ff519473176440bb9678c95051ed627 dd8f9f301d1e436d8d3a9b695537c897 - cb4c93ee9c98459c8cde54c2c8b0a829 cb4c93ee9c98459c8cde54c2c8b0a829] Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/connection.py", line 122, in run
    txn.results.put(txn.do_commit())
  File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py", line 115, in do_commit
    raise RuntimeError(msg)
RuntimeError: OVSDB Error: {"details":"RBAC rules for client \"juju-ef641e-1-lxd-2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis\".","error":"permission error"}

2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command [req-fbf878ca-f0bc-465c-b173-882d695cb4aa 3ff519473176440bb9678c95051ed627 dd8f9f301d1e436d8d3a9b695537c897 - cb4c93ee9c98459c8cde54c2c8b0a829 cb4c93ee9c98459c8cde54c2c8b0a829] Error executing command: RuntimeError: OVSDB Error: {"details":"RBAC rules for client \"juju-ef641e-1-lxd-2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis\".","error":"permission error"}
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command Traceback (most recent call last):
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command   File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/command.py", line 40, in execute
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command     t.add(self)
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command   File "/usr/lib/python3.6/contextlib.py", line 88, in __exit__
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command     next(self.gen)
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command   File "/usr/lib/python3/dist-packages/ovsdbapp/api.py", line 119, in transaction
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command     del self._nested_txns_map[cur_thread_id]
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command   File "/usr/lib/python3/dist-packages/ovsdbapp/api.py", line 69, in __exit__
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command     self.result = self.commit()
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command   File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py", line 62, in commit
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command     raise result.ex
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command   File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/connection.py", line 122, in run
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command     txn.results.put(txn.do_commit())
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command   File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py", line 115, in do_commit
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command     raise RuntimeError(msg)
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command RuntimeError: OVSDB Error: {"details":"RBAC rules for client \"juju-ef641e-1-lxd-2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis\".","error":"permission error"}
2020-02-25 11:04:33.421 1520231 ERROR ovsdbapp.backend.ovs_idl.command 
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation [req-fbf878ca-f0bc-465c-b173-882d695cb4aa 3ff519473176440bb9678c95051ed627 dd8f9f301d1e436d8d3a9b695537c897 - cb4c93ee9c98459c8cde54c2c8b0a829 cb4c93ee9c98459c8cde54c2c8b0a829] POST failed.: neutron_lib.callbacks.exceptions.CallbackFailure: Callback neutron.services.segments.db._add_segment_host_mapping_for_segment--9223363248144570382 failed with "OVSDB Error: {"details":"RBAC rules for client \"juju-ef641e-1-lxd-2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis\".","error":"permission error"}"
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation Traceback (most recent call last):
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/pecan/core.py", line 683, in __call__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.invoke_controller(controller, args, kwargs, state)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/pecan/core.py", line 574, in invoke_controller
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     result = controller(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 139, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     setattr(e, '_RETRY_EXCEEDED', True)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.force_reraise()
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     six.reraise(self.type_, self.value, self.tb)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise value
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 135, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_db/api.py", line 154, in wrapper
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     ectxt.value = e.inner_exc
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.force_reraise()
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     six.reraise(self.type_, self.value, self.tb)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise value
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_db/api.py", line 142, in wrapper
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 183, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     LOG.debug("Retry wrapper got retriable exception: %s", e)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.force_reraise()
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     six.reraise(self.type_, self.value, self.tb)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise value
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 179, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(*dup_args, **dup_kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/pecan_wsgi/controllers/utils.py", line 76, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/pecan_wsgi/controllers/resource.py", line 163, in post
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return self.create(resources)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/pecan_wsgi/controllers/resource.py", line 181, in create
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return {key: creator(*creator_args, **creator_kwargs)}
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/common/utils.py", line 685, in inner
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(self, context, *args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 233, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return method(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 139, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     setattr(e, '_RETRY_EXCEEDED', True)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.force_reraise()
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     six.reraise(self.type_, self.value, self.tb)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise value
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 135, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_db/api.py", line 154, in wrapper
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     ectxt.value = e.inner_exc
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.force_reraise()
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     six.reraise(self.type_, self.value, self.tb)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise value
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_db/api.py", line 142, in wrapper
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 183, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     LOG.debug("Retry wrapper got retriable exception: %s", e)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.force_reraise()
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     six.reraise(self.type_, self.value, self.tb)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise value
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/api.py", line 179, in wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return f(*dup_args, **dup_kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/plugin.py", line 1047, in create_network
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     result, mech_context = self._create_network_db(context, network)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/plugin.py", line 1006, in _create_network_db
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     tenant_id)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/managers.py", line 218, in create_network_segments
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     segment_index)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/managers.py", line 201, in _add_network_segment
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     context, network_id, segment, segment_index)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron/db/segments_db.py", line 57, in add_network_segment
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     segment=netseg_obj)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/callbacks/registry.py", line 56, in notify
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     _get_callback_manager().notify(resource, event, trigger, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/utils.py", line 108, in _wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise db_exc.RetryRequest(e)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     self.force_reraise()
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     six.reraise(self.type_, self.value, self.tb)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise value
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/db/utils.py", line 103, in _wrapped
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     return function(*args, **kwargs)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation   File "/usr/lib/python3/dist-packages/neutron_lib/callbacks/manager.py", line 177, in notify
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation     raise exceptions.CallbackFailure(errors=errors)
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation neutron_lib.callbacks.exceptions.CallbackFailure: Callback neutron.services.segments.db._add_segment_host_mapping_for_segment--9223363248144570382 failed with "OVSDB Error: {"details":"RBAC rules for client \"juju-ef641e-1-lxd-2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis\".","error":"permission error"}"
2020-02-25 11:04:33.486 1520231 ERROR neutron.pecan_wsgi.hooks.translation