See upstream story: https://storyboard.openstack.org/#!/story/2010488

when creating a listener with the fully-populated API in SINGLE topology, octavia fails with:

Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: WARNING taskflow.conductors.backends.impl_executor [-] Job execution failed (consumption proceeding): ZookeeperJob: get_create_load_balancer_flow-de511c33-99cc-4345-b4b0-6eb964ff5f1d (priority=JobPriority.NORMAL, uuid=0f746696-76b0-46b6-aaeb-5a7c4a97b246, details={'store': {'loadbalancer_id': '1091622b-7820-461c-aaee-5dc0e6815897', 'build_type_priority': 40, 'flavor': {}, 'availability_zone': {}, 'server_group_id': None, 'update_dict': {'topology': 'SINGLE'}}}): taskflow.exceptions.MissingDependencies: '"linear_flow.Flow: octavia-create-loadbalancer-flow(len=21)"' requires ['amphorae_network_config'] but no other entity produces said requirements
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]:   MissingDependencies: 'execute' method on '"octavia.controller.worker.v2.tasks.amphora_driver_tasks.AmphoraePostNetworkPlug==1.0"' requires ['amphorae_network_config'] but no other entity produces said requirements
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor Traceback (most recent call last):
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor   File "/opt/stack/taskflow/taskflow/conductors/backends/impl_executor.py", line 178, in _dispatch_job
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor     stage_func()
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor   File "/usr/local/lib/python3.9/site-packages/fasteners/lock.py", line 226, in wrapper
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor     return f(self, *args, **kwargs)
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor   File "/opt/stack/taskflow/taskflow/engines/action_engine/engine.py", line 80, in wrapper
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor     return meth(self, *args, **kwargs)
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor   File "/opt/stack/taskflow/taskflow/engines/action_engine/engine.py", line 430, in validate
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor     raise exc.MissingDependencies(self._flow,
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor taskflow.exceptions.MissingDependencies: '"linear_flow.Flow: octavia-create-loadbalancer-flow(len=21)"' requires ['amphorae_network_config'] but no other entity produces said requirements
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor   MissingDependencies: 'execute' method on '"octavia.controller.worker.v2.tasks.amphora_driver_tasks.AmphoraePostNetworkPlug==1.0"' requires ['amphorae_network_config'] but no other entity produces said requirements
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: ERROR taskflow.conductors.backends.impl_executor 
Dec 22 10:15:49 gthiemon-devstack octavia-worker[3267753]: DEBUG octavia.common.base_taskflow [-] Job get_create_load_balancer_flow-de511c33-99cc-4345-b4b0-6eb964ff5f1d is complete. Cleaning up job logbook. {{(pid=3267753) _on_job_done /opt/stack/octavia/octavia/common/base_taskflow.py:110}}


Note that ACTIVE_STANDBY topology is not affected by this issue