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[Bug 1938826] Re: Install and configure controller node in Neutron

 

Looks like your config file is missing required config values.
This is an issue of the installer.

Please file a bug to the installer project.

** Changed in: neutron
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1938826

Title:
  Install and configure controller node in Neutron

Status in neutron:
  Invalid

Bug description:
  When restarting the neutron-linuxbridge-agent service, I am facing a problem:
  sudo service neutron-linuxbridge-agent status
  ● neutron-linuxbridge-agent.service - Openstack Neutron Linux Bridge Agent
       Loaded: loaded (/lib/systemd/system/neutron-linuxbridge-agent.service; enabled; vendor preset: enabled)
       Active: inactive (dead) since Tue 2021-08-03 16:04:01 -03; 79ms ago
      Process: 377517 ExecStartPre=/bin/mkdir -p /var/lock/neutron /var/log/neutron /var/lib/neutron (code=exited, status=0/SUCCESS)
      Process: 377518 ExecStartPre=/bin/chown neutron:neutron /var/lock/neutron /var/log/neutron /var/lib/neutron (code=exited, status=0/SUCCESS)
      Process: 377519 ExecStartPre=/sbin/modprobe br_netfilter (code=exited, status=0/SUCCESS)
      Process: 377520 ExecStart=/etc/init.d/neutron-linuxbridge-agent systemd-start (code=exited, status=0/SUCCESS)
     Main PID: 377520 (code=exited, status=0/SUCCESS)

  ago 03 16:03:59 openstack-controller systemd[1]: Starting Openstack Neutron Linux Bridge Agent...
  ago 03 16:03:59 openstack-controller systemd[1]: Started Openstack Neutron Linux Bridge Agent.
  ago 03 16:04:00 openstack-controller sudo[377533]:  neutron : TTY=unknown ; PWD=/var/lib/neutron ; USER=root ; COMMAND=/usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf privsep-helper --config-file />
  ago 03 16:04:00 openstack-controller sudo[377533]: pam_unix(sudo:session): session opened for user root by (uid=0)
  ago 03 16:04:00 openstack-controller sudo[377533]: pam_unix(sudo:session): session closed for user root
  ago 03 16:04:01 openstack-controller systemd[1]: neutron-linuxbridge-agent.service: Succeeded.

  Same problem for the neutron-dhcp-agent service:
  sudo service neutron-dhcp-agent status
  ● neutron-dhcp-agent.service - OpenStack Neutron DHCP agent
       Loaded: loaded (/lib/systemd/system/neutron-dhcp-agent.service; enabled; vendor preset: enabled)
       Active: inactive (dead) since Tue 2021-08-03 16:22:18 -03; 6s ago
         Docs: man:neutron-dhcp-agent(1)
      Process: 384411 ExecStart=/etc/init.d/neutron-dhcp-agent systemd-start (code=exited, status=0/SUCCESS)
     Main PID: 384411 (code=exited, status=0/SUCCESS)

  ago 03 16:22:17 openstack-controller systemd[1]: Started OpenStack Neutron DHCP agent.
  ago 03 16:22:18 openstack-controller systemd[1]: neutron-dhcp-agent.service: Succeeded.

  
  Below is the log (/var/log/neutron/neutron-linuxbridge-agent.log):

  2021-08-02 15:27:07.843 56737 ERROR neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Tunneling cannot be enabled without the local_ip bound to an interface on the host. Please>
  2021-08-02 15:27:09.601 56805 INFO neutron.common.config [-] Logging enabled!
  2021-08-02 15:27:09.601 56805 INFO neutron.common.config [-] /usr/bin/neutron-linuxbridge-agent version 18.0.0
  2021-08-02 15:27:09.601 56805 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Interface mappings: {}
  2021-08-02 15:27:09.601 56805 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Bridge mappings: {}
  2021-08-02 15:27:09.602 56805 ERROR neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Tunneling cannot be enabled without the local_ip bound to an interface on the host. Please>
  2021-08-02 15:27:11.321 56832 INFO neutron.common.config [-] Logging enabled!
  2021-08-02 15:27:11.322 56832 INFO neutron.common.config [-] /usr/bin/neutron-linuxbridge-agent version 18.0.0
  2021-08-02 15:27:11.322 56832 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Interface mappings: {}
  2021-08-02 15:27:11.322 56832 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Bridge mappings: {}
  2021-08-02 15:27:11.322 56832 ERROR neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Tunneling cannot be enabled without the local_ip bound to an interface on the host. Please>
  2021-08-03 15:48:49.813 372237 INFO neutron.common.config [-] Logging enabled!
  2021-08-03 15:48:49.814 372237 INFO neutron.common.config [-] /usr/bin/neutron-linuxbridge-agent version 18.0.0
  2021-08-03 15:48:49.814 372237 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Interface mappings: {'provider': 'enp0s31f6'}
  2021-08-03 15:48:49.814 372237 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Bridge mappings: {}
  2021-08-03 15:48:49.815 372237 INFO oslo.privsep.daemon [-] Running privsep helper: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'privsep-helper', '--config-file', '/etc/neutron/n>
  2021-08-03 15:48:50.316 372237 INFO oslo.privsep.daemon [-] Spawned new privsep daemon via rootwrap
  2021-08-03 15:48:50.244 372269 INFO oslo.privsep.daemon [-] privsep daemon starting
  2021-08-03 15:48:50.247 372269 INFO oslo.privsep.daemon [-] privsep process running with uid/gid: 0/0
  2021-08-03 15:48:50.248 372269 INFO oslo.privsep.daemon [-] privsep process running with capabilities (eff/prm/inh): CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_NET_ADMIN|CAP_SYS_ADMIN|CAP_SYS_PTRACE/CAP_D>
  2021-08-03 15:48:50.248 372269 INFO oslo.privsep.daemon [-] privsep daemon running as pid 372269
  2021-08-03 15:48:50.638 372237 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Agent initialized successfully, now running...
  2021-08-03 15:48:51.109 372237 INFO neutron.plugins.ml2.drivers.agent._common_agent [req-f5d0cd78-1f29-4c62-be6c-ea0bbefb0894 - - - - -] RPC agent_id: lbb06ebf66d3b0
  2021-08-03 15:48:51.120 372237 INFO neutron.agent.agent_extensions_manager [req-f5d0cd78-1f29-4c62-be6c-ea0bbefb0894 - - - - -] Loaded agent extensions: []
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager [req-f5d0cd78-1f29-4c62-be6c-ea0bbefb0894 - - - - -] Error during notification for neutron.services.trunk.drivers.linuxbridge.agent.dri>
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager Traceback (most recent call last):
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron_lib/callbacks/manager.py", line 197, in _notify_loop
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     callback(resource, event, trigger, **kwargs)
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron/services/trunk/drivers/linuxbridge/agent/driver.py", line 32, in init_handler
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     LinuxBridgeTrunkDriver()
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron/services/trunk/drivers/linuxbridge/agent/driver.py", line 47, in __init__
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     super(LinuxBridgeTrunkDriver, self).__init__()
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron/services/trunk/rpc/agent.py", line 54, in __init__
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     self._connection.consume_in_threads()
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron_lib/rpc.py", line 351, in consume_in_threads
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     server.start()
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in wrapper
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 188, in run_once
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     post_fn = fn()
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in <lambda>
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 413, in start
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     self.listener = self._create_listener()
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/server.py", line 150, in _create_listener
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     return self.transport._listen(self._target, 1, None)
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/transport.py", line 142, in _listen
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     return self._driver.listen(target, batch_size,
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in listen
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     conn = self._get_connection(rpc_common.PURPOSE_LISTEN)
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 597, in _get_connection
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     return rpc_common.ConnectionContext(self._connection_pool,
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/common.py", line 425, in __init__
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     self.connection = connection_pool.create(purpose)
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/pool.py", line 146, in create
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     return self.connection_cls(self.conf, self.url, purpose)
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 539, in __init__
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     transformed_urls = [
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 540, in <listcomp>
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     self._transform_transport_url(url, host)
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 695, in _transform_transport_url
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     self._parse_url_hostname(host.hostname) or default_hostname,
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 703, in _parse_url_hostname
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager     return '[%s]' % hostname if ':' in hostname else hostname
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager TypeError: argument of type 'NoneType' is not iterable
  2021-08-03 15:48:51.123 372237 ERROR neutron_lib.callbacks.manager
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service [req-f5d0cd78-1f29-4c62-be6c-ea0bbefb0894 - - - - -] Error starting thread.: TypeError: argument of type 'NoneType' is not iterable
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service Traceback (most recent call last):
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_service/service.py", line 807, in run_service
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     service.start()
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/osprofiler/profiler.py", line 160, in wrapper
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     result = f(*args, **kwargs)
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/agent/_common_agent.py", line 110, in start
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     self.connection.consume_in_threads()
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/neutron_lib/rpc.py", line 351, in consume_in_threads
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     server.start()
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in wrapper
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 188, in run_once
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     post_fn = fn()
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in <lambda>
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 413, in start
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     self.listener = self._create_listener()
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/server.py", line 150, in _create_listener
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     return self.transport._listen(self._target, 1, None)
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/transport.py", line 142, in _listen
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     return self._driver.listen(target, batch_size,
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in listen
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     conn = self._get_connection(rpc_common.PURPOSE_LISTEN)
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 597, in _get_connection
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     return rpc_common.ConnectionContext(self._connection_pool,
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/common.py", line 425, in __init__
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     self.connection = connection_pool.create(purpose)
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/pool.py", line 146, in create
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     return self.connection_cls(self.conf, self.url, purpose)
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 539, in __init__
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     transformed_urls = [
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 540, in <listcomp>
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     self._transform_transport_url(url, host)
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 695, in _transform_transport_url
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     self._parse_url_hostname(host.hostname) or default_hostname,
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 703, in _parse_url_hostname
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service     return '[%s]' % hostname if ':' in hostname else hostname
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service TypeError: argument of type 'NoneType' is not iterable
  2021-08-03 15:48:51.126 372237 ERROR oslo_service.service
  2021-08-03 15:48:51.150 372237 INFO neutron.plugins.ml2.drivers.agent._common_agent [-] Stopping Linux bridge agent agent.
  2021-08-03 15:50:39.008 372883 INFO neutron.common.config [-] Logging enabled!
  2021-08-03 15:50:39.008 372883 INFO neutron.common.config [-] /usr/bin/neutron-linuxbridge-agent version 18.0.0
  2021-08-03 15:50:39.009 372883 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Interface mappings: {'provider': 'enp0s31f6'}
  2021-08-03 15:50:39.009 372883 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Bridge mappings: {}
  2021-08-03 15:50:39.010 372883 INFO oslo.privsep.daemon [-] Running privsep helper: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'privsep-helper', '--config-file', '/etc/neutron/n>
  2021-08-03 15:50:39.491 372883 INFO oslo.privsep.daemon [-] Spawned new privsep daemon via rootwrap
  2021-08-03 15:50:39.433 372943 INFO oslo.privsep.daemon [-] privsep daemon starting
  2021-08-03 15:50:39.435 372943 INFO oslo.privsep.daemon [-] privsep process running with uid/gid: 0/0
  2021-08-03 15:50:39.437 372943 INFO oslo.privsep.daemon [-] privsep process running with capabilities (eff/prm/inh): CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_NET_ADMIN|CAP_SYS_ADMIN|CAP_SYS_PTRACE/CAP_D>
  2021-08-03 15:50:39.437 372943 INFO oslo.privsep.daemon [-] privsep daemon running as pid 372943
  2021-08-03 15:50:39.799 372883 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Agent initialized successfully, now running...
  2021-08-03 15:50:39.925 372883 INFO neutron.plugins.ml2.drivers.agent._common_agent [req-6cb0471c-5230-445c-b942-02c8f1e4c9de - - - - -] RPC agent_id: lbb06ebf66d3b0
  2021-08-03 15:50:39.929 372883 INFO neutron.agent.agent_extensions_manager [req-6cb0471c-5230-445c-b942-02c8f1e4c9de - - - - -] Loaded agent extensions: []
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager [req-6cb0471c-5230-445c-b942-02c8f1e4c9de - - - - -] Error during notification for neutron.services.trunk.drivers.linuxbridge.agent.dri>
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager Traceback (most recent call last):
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron_lib/callbacks/manager.py", line 197, in _notify_loop
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     callback(resource, event, trigger, **kwargs)
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron/services/trunk/drivers/linuxbridge/agent/driver.py", line 32, in init_handler
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     LinuxBridgeTrunkDriver()
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron/services/trunk/drivers/linuxbridge/agent/driver.py", line 47, in __init__
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     super(LinuxBridgeTrunkDriver, self).__init__()
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron/services/trunk/rpc/agent.py", line 54, in __init__
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     self._connection.consume_in_threads()
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/neutron_lib/rpc.py", line 351, in consume_in_threads
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     server.start()
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in wrapper
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 188, in run_once
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     post_fn = fn()
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in <lambda>
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 413, in start
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     self.listener = self._create_listener()
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/server.py", line 150, in _create_listener
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     return self.transport._listen(self._target, 1, None)
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/transport.py", line 142, in _listen
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     return self._driver.listen(target, batch_size,
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in listen
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     conn = self._get_connection(rpc_common.PURPOSE_LISTEN)
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 597, in _get_connection
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     return rpc_common.ConnectionContext(self._connection_pool,
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/common.py", line 425, in __init__
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     self.connection = connection_pool.create(purpose)
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/pool.py", line 146, in create
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     return self.connection_cls(self.conf, self.url, purpose)
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 539, in __init__
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     transformed_urls = [
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 540, in <listcomp>
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     self._transform_transport_url(url, host)
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 695, in _transform_transport_url
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     self._parse_url_hostname(host.hostname) or default_hostname,
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 703, in _parse_url_hostname
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager     return '[%s]' % hostname if ':' in hostname else hostname
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager TypeError: argument of type 'NoneType' is not iterable
  2021-08-03 15:50:39.931 372883 ERROR neutron_lib.callbacks.manager
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service [req-6cb0471c-5230-445c-b942-02c8f1e4c9de - - - - -] Error starting thread.: TypeError: argument of type 'NoneType' is not iterable
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service Traceback (most recent call last):
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_service/service.py", line 807, in run_service
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     service.start()
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/osprofiler/profiler.py", line 160, in wrapper
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     result = f(*args, **kwargs)
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/agent/_common_agent.py", line 110, in start
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     self.connection.consume_in_threads()
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/neutron_lib/rpc.py", line 351, in consume_in_threads
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     server.start()
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in wrapper
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 188, in run_once
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     post_fn = fn()
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in <lambda>
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     states[state].run_once(lambda: fn(self, *args, **kwargs),
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 413, in start
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     self.listener = self._create_listener()
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/server.py", line 150, in _create_listener
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     return self.transport._listen(self._target, 1, None)
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/transport.py", line 142, in _listen
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     return self._driver.listen(target, batch_size,
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in listen
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     conn = self._get_connection(rpc_common.PURPOSE_LISTEN)
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 597, in _get_connection
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     return rpc_common.ConnectionContext(self._connection_pool,
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/common.py", line 425, in __init__
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     self.connection = connection_pool.create(purpose)
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/pool.py", line 146, in create
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     return self.connection_cls(self.conf, self.url, purpose)
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 539, in __init__
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     transformed_urls = [
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 540, in <listcomp>
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     self._transform_transport_url(url, host)
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 695, in _transform_transport_url
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     self._parse_url_hostname(host.hostname) or default_hostname,
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/impl_rabbit.py", line 703, in _parse_url_hostname
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service     return '[%s]' % hostname if ':' in hostname else hostname
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service TypeError: argument of type 'NoneType' is not iterable
  2021-08-03 15:50:39.932 372883 ERROR oslo_service.service
  2021-08-03 15:50:39.933 372883 INFO neutron.plugins.ml2.drivers.agent._common_agent [-] Stopping Linux bridge agent agent.

  What is missing during the installation/configuration?

  This bug tracker is for errors with the documentation, use the
  following as a template and remove or add fields as you see fit.
  Convert [ ] into [x] to check boxes:

  - [ ] This doc is inaccurate in this way: ______
  - [ ] This is a doc addition request.
  - [ ] I have a fix to the document that I can paste below including example: input and output.

  If you have a troubleshooting or support issue, use the following
  resources:

   - The mailing list: https://lists.openstack.org
   - IRC: 'openstack' channel on Freenode

  -----------------------------------
  Release: 18.1.1.dev5 on 2019-08-21 16:09:09
  SHA: 0f02f97f25fc0cdf47e5e6b294c6acdcaaca615c
  Source: https://opendev.org/openstack/neutron/src/doc/source/install/controller-install-ubuntu.rst
  URL: https://docs.openstack.org/neutron/wallaby/install/controller-install-ubuntu.html

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References