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[Bug 1949202] Re: ovn-controllers are listed as agents but cannot be disabled

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Rodolfo Alonso <1949202@xxxxxxxxxxxxxxxxxx>
Date: Wed, 03 Nov 2021 11:38:05 -0000
Reply-to: Bug 1949202 <1949202@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Hello David:

The ability to disable an agent is currently limited to L3 and DHCP
agents. In non-OVN deployments, you can disable the Linux Bridge, OVS or
metadata agent, but that will have no effect (apart from the flag in the
Neutron DB).

In OVN this flag has no meaning at all. The controller agent is just a
logical representation of an OVN controller service (not handled by
Neutron). The OVN metadata agent is a service provided by Neutron but
not controlled by the Neutron server; this service is attending OVN DB
events and reacts to them. In the Neutron server, the OVN metadata agent
is just a logical representation retrieved from the associated chassis
and the presence of "neutron:ovn-metadata-id" in the chassis
"external_ids".

OVN agents do not have a Neutron DB counterpart. OVN agents provide
almost the same API as other network agents but from information located
in the OVN DB.

The current behaviour is the expected one.

Regards.


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

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https://bugs.launchpad.net/bugs/1949202

Title:
   ovn-controllers are listed as agents but cannot be disabled

Status in neutron:
  Invalid

Bug description:
  We added recently the possibility to delete ovn agents [a] but we
  would also need to disable them which is apparently not supported.


  [1] neutron api logs
  [2] output of: openstack --debug network agent set 1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf --disable
  [3] neutron agent-update output

  
  [a] https://review.opendev.org/c/openstack/neutron/+/752795

  [1]
  ~~~
  2021-10-28 00:31:23.850 17 DEBUG neutron.api.v2.base [req-8fb69095-22f5-413f-87d3-3230bd9beca6 bdd63425ae7140f7b40ff3fea3f0fb02 79443079d65a45b5952e79b4fb434769 - default default] Request body: {'agent': {'admin_state_up': False}} prepare_request_body /usr/lib/python3.9/site-packages/neutron/api/v2/base.py:729
  2021-10-28 00:31:23.851 17 INFO neutron.api.v2.resource [req-8fb69095-22f5-413f-87d3-3230bd9beca6 bdd63425ae7140f7b40ff3fea3f0fb02 79443079d65a45b5952e79b4fb434769 - default default] update failed (client error): The server could not comply with the request since it is either malformed or otherwise incorrect.
  2021-10-28 00:31:23.852 17 INFO neutron.wsgi [req-8fb69095-22f5-413f-87d3-3230bd9beca6 bdd63425ae7140f7b40ff3fea3f0fb02 79443079d65a45b5952e79b4fb434769 - default default] 172.17.0.189,::1 "PUT /v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf HTTP/1.1" status: 400  len: 331 time: 0.0053201
  ~~~

  [2]
  ~~~
  START with options: --debug network agent set 1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf --disable
  options: Namespace(verbose_level=3, log_file=None, deferred_help=False, debug=True, cloud='', region_name='regionOne', cacert=None, cert='', key='', verify=None, insecure=None, default_domain='default', interface='public', service_provider='', remote_project_name='', remote_project_id='', remote_project_domain_name='', remote_project_domain_id='', timing=False, os_beta_command=False, profile='', os_compute_api_version='2.latest', os_identity_api_version='3', os_image_api_version='2', os_network_api_version='', os_object_api_version='', os_volume_api_version='3', os_orchestration_api_version='1', os_queues_api_version='2', inspector_api_version='1', inspector_url=None, os_workflow_api_version='2', os_share_api_version='2.63', os_dns_api_version='2', os_container_infra_api_version='1', os_key_manager_api_version='1', os_alarming_api_version='2', os_baremetal_api_version='1.77', os_loadbalancer_api_version='2.0', os_data_processing_api_version='1.1', os_data_processing_url='', os_database_api_version='1', os_tripleoclient_api_version='2', os_metrics_api_version='1', os_placement_api_version='1', auth_type='password', endpoint='', token='***', auth_url='https://overcloud.localdomain:13000', system_scope='', domain_id='', domain_name='', project_id='', project_name='admin', project_domain_id='', project_domain_name='Default', trust_id='', identity_provider='', protocol='', access_token='***', client_id='', client_secret='***', openid_scope='', access_token_endpoint='', discovery_endpoint='', access_token_type='', redirect_uri='', code='', auth_methods='', identity_provider_url='', username='admin', password='***', user_id='', user_domain_id='', user_domain_name='Default', service_provider_endpoint='', service_provider_entity_id='', application_credential_secret='***', application_credential_id='', application_credential_name='', roles='', user='', passcode='', aodh_endpoint='', default_domain_id='', default_domain_name='', os_project_name=None, os_project_id=None)
  Auth plugin password selected
  auth_config_hook(): {'api_timeout': None, 'verify': True, 'cacert': None, 'cert': None, 'key': None, 'baremetal_status_code_retries': '5', 'baremetal_introspection_status_code_retries': '5', 'image_status_code_retries': '5', 'disable_vendor_agent': {}, 'interface': 'public', 'floating_ip_source': 'neutron', 'image_api_use_tasks': False, 'image_format': 'qcow2', 'message': '', 'network_api_version': '2', 'object_store_api_version': '1', 'secgroup_source': 'neutron', 'status': 'active', 'auth': {'user_domain_name': 'Default', 'project_domain_name': 'Default', 'project_name': 'admin'}, 'verbose_level': 3, 'deferred_help': False, 'debug': True, 'region_name': 'regionOne', 'default_domain': 'default', 'timing': False, 'inspector_api_version': '1', 'auth_url': 'https://overcloud.localdomain:13000', 'username': 'admin', 'password': '***', 'beta_command': False, 'compute_api_version': '2.latest', 'identity_api_version': '3', 'image_api_version': '2', 'volume_api_version': '3', 'orchestration_api_version': '1', 'queues_api_version': '2', 'workflow_api_version': '2', 'share_api_version': '2.63', 'dns_api_version': '2', 'container_infra_api_version': '1', 'key_manager_api_version': '1', 'alarming_api_version': '2', 'baremetal_api_version': '1.77', 'loadbalancer_api_version': '2.0', 'data_processing_api_version': '1.1', 'database_api_version': '1', 'tripleoclient_api_version': '2', 'metrics_api_version': '1', 'placement_api_version': '1', 'auth_type': 'password', 'networks': []}
  defaults: {'api_timeout': None, 'verify': True, 'cacert': None, 'cert': None, 'key': None, 'auth_type': 'password', 'baremetal_status_code_retries': 5, 'baremetal_introspection_status_code_retries': 5, 'image_status_code_retries': 5, 'disable_vendor_agent': {}, 'interface': None, 'floating_ip_source': 'neutron', 'image_api_use_tasks': False, 'image_format': 'qcow2', 'message': '', 'network_api_version': '2', 'object_store_api_version': '1', 'secgroup_source': 'neutron', 'status': 'active'}
  cloud cfg: {'api_timeout': None, 'verify': True, 'cacert': None, 'cert': None, 'key': None, 'baremetal_status_code_retries': '5', 'baremetal_introspection_status_code_retries': '5', 'image_status_code_retries': '5', 'disable_vendor_agent': {}, 'interface': 'public', 'floating_ip_source': 'neutron', 'image_api_use_tasks': False, 'image_format': 'qcow2', 'message': '', 'network_api_version': '2', 'object_store_api_version': '1', 'secgroup_source': 'neutron', 'status': 'active', 'auth': {'user_domain_name': 'Default', 'project_domain_name': 'Default', 'project_name': 'admin'}, 'verbose_level': 3, 'deferred_help': False, 'debug': True, 'region_name': 'regionOne', 'default_domain': 'default', 'timing': False, 'inspector_api_version': '1', 'auth_url': 'https://overcloud.localdomain:13000', 'username': 'admin', 'password': '***', 'beta_command': False, 'compute_api_version': '2.latest', 'identity_api_version': '3', 'image_api_version': '2', 'volume_api_version': '3', 'orchestration_api_version': '1', 'queues_api_version': '2', 'workflow_api_version': '2', 'share_api_version': '2.63', 'dns_api_version': '2', 'container_infra_api_version': '1', 'key_manager_api_version': '1', 'alarming_api_version': '2', 'baremetal_api_version': '1.77', 'loadbalancer_api_version': '2.0', 'data_processing_api_version': '1.1', 'database_api_version': '1', 'tripleoclient_api_version': '2', 'metrics_api_version': '1', 'placement_api_version': '1', 'auth_type': 'password', 'networks': []}
  compute API version 2.latest, cmd group openstack.compute.v2
  identity API version 3, cmd group openstack.identity.v3
  image API version 2, cmd group openstack.image.v2
  network API version 2, cmd group openstack.network.v2
  object_store API version 1, cmd group openstack.object_store.v1
  volume API version 3, cmd group openstack.volume.v3
  neutronclient API version 2, cmd group openstack.neutronclient.v2
  orchestration API version 1, cmd group openstack.orchestration.v1
  messaging API version 2, cmd group openstack.messaging.v2
  baremetal_introspection API version 1, cmd group openstack.baremetal_introspection.v1
  workflow_engine API version 2, cmd group openstack.workflow_engine.v2
  share API version 2.63, cmd group openstack.share.v2
  dns API version 2, cmd group openstack.dns.v2
  container_infra API version 1, cmd group openstack.container_infra.v1
  /usr/lib/python3.9/site-packages/barbicanclient/__init__.py:57: UserWarning: The secrets module is moved to barbicanclient/v1 directory, direct import of barbicanclient.secrets will be deprecated. Please import barbicanclient.v1.secrets instead.
    warnings.warn("The %s module is moved to barbicanclient/v1 "
  key_manager API version 1, cmd group openstack.key_manager.v1
  alarming API version 2, cmd group openstack.alarming.v2
  baremetal API version 1.77, cmd group openstack.baremetal.v1
  load_balancer API version 2.0, cmd group openstack.load_balancer.v2
  data_processing API version 1.1, cmd group openstack.data_processing.v1
  database API version 1, cmd group openstack.database.v1
  Popen(['git', 'version'], cwd=/home/stack, universal_newlines=False, shell=None, istream=None)
  Popen(['git', 'version'], cwd=/home/stack, universal_newlines=False, shell=None, istream=None)
  tripleoclient API version 2, cmd group openstack.tripleoclient.v2
  metric API version 1, cmd group openstack.metric.v1
  placement API version 1, cmd group openstack.placement.v1
  command: network agent set -> openstackclient.network.v2.network_agent.SetNetworkAgent (auth=True)
  Auth plugin password selected
  auth_config_hook(): {'api_timeout': None, 'verify': True, 'cacert': None, 'cert': None, 'key': None, 'baremetal_status_code_retries': '5', 'baremetal_introspection_status_code_retries': '5', 'image_status_code_retries': '5', 'disable_vendor_agent': {}, 'interface': 'public', 'floating_ip_source': 'neutron', 'image_api_use_tasks': False, 'image_format': 'qcow2', 'message': '', 'network_api_version': '2', 'object_store_api_version': '1', 'secgroup_source': 'neutron', 'status': 'active', 'auth': {'user_domain_name': 'Default', 'project_domain_name': 'Default', 'project_name': 'admin'}, 'additional_user_agent': [('osc-lib', '2.4.2')], 'verbose_level': 3, 'deferred_help': False, 'debug': True, 'region_name': 'regionOne', 'default_domain': 'default', 'timing': False, 'inspector_api_version': '1', 'auth_url': 'https://overcloud.localdomain:13000', 'username': 'admin', 'password': '***', 'beta_command': False, 'compute_api_version': '2.latest', 'identity_api_version': '3', 'image_api_version': '2', 'volume_api_version': '3', 'orchestration_api_version': '1', 'queues_api_version': '2', 'workflow_api_version': '2', 'share_api_version': '2.63', 'dns_api_version': '2', 'container_infra_api_version': '1', 'key_manager_api_version': '1', 'alarming_api_version': '2', 'baremetal_api_version': '1.77', 'loadbalancer_api_version': '2.0', 'data_processing_api_version': '1.1', 'database_api_version': '1', 'tripleoclient_api_version': '2', 'metrics_api_version': '1', 'placement_api_version': '1', 'auth_type': 'password', 'networks': []}
  Using auth plugin: password
  Using parameters {'auth_url': 'https://overcloud.localdomain:13000', 'project_name': 'admin', 'project_domain_name': 'Default', 'username': 'admin', 'user_domain_name': 'Default', 'password': '***'}
  Get auth_ref
  REQ: curl -g -i -X GET https://overcloud.localdomain:13000 -H "Accept: application/json" -H "User-Agent: openstacksdk/0.59.0 keystoneauth1/4.4.0 python-requests/2.25.1 CPython/3.9.7"
  Starting new HTTPS connection (1): overcloud.localdomain:13000
  https://overcloud.localdomain:13000 "GET / HTTP/1.1" 300 278
  RESP: [300] content-length: 278 content-type: application/json date: Thu, 28 Oct 2021 00:40:07 GMT location: https://overcloud.localdomain:13000/v3/ server: Apache vary: X-Auth-Token x-openstack-request-id: req-d83e1d8a-1fad-4e00-ab56-9ceae908fb65
  RESP BODY: {"versions": {"values": [{"id": "v3.14", "status": "stable", "updated": "2020-04-07T00:00:00Z", "links": [{"rel": "self", "href": "https://overcloud.localdomain:13000/v3/"}], "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v3+json"}]}]}}
  GET call to https://overcloud.localdomain:13000/ used request id req-d83e1d8a-1fad-4e00-ab56-9ceae908fb65
  Making authentication request to https://overcloud.localdomain:13000/v3/auth/tokens
  https://overcloud.localdomain:13000 "POST /v3/auth/tokens HTTP/1.1" 201 6473
  {"token": {"methods": ["password"], "user": {"domain": {"id": "default", "name": "Default"}, "id": "bdd63425ae7140f7b40ff3fea3f0fb02", "name": "admin", "password_expires_at": null}, "audit_ids": ["hV-Nusz8QpqwFfOtDemPkA"], "expires_at": "2021-10-28T01:40:08.000000Z", "issued_at": "2021-10-28T00:40:08.000000Z", "project": {"domain": {"id": "default", "name": "Default"}, "id": "79443079d65a45b5952e79b4fb434769", "name": "admin"}, "is_domain": false, "roles": [{"id": "b54ba53d07d14e689a1aa15c6b3611f9", "name": "member"}, {"id": "0e8188a1d42c40818bd7414ce4951826", "name": "admin"}, {"id": "ec854daf2f544f848e3bf1b81d0cdc44", "name": "reader"}], "catalog": [{"endpoints": [{"id": "471d876423bb48dd9cb3aa235aed646d", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13004/v1/79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}, {"id": "b187093d1a7545198289530aed1f7dd8", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8004/v1/79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}, {"id": "c42964843c35410f9999e48175639083", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8004/v1/79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}], "id": "1e18795f681d44968d71c16a880b68e3", "type": "orchestration", "name": "heat"}, {"endpoints": [{"id": "5396cc12367344a8864d43af5c76a7dd", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13696";, "region": "regionOne"}, {"id": "db08cf4f3fa546ddadaaacd51f73c3aa", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:9696";, "region": "regionOne"}, {"id": "fc3ad0c156e448a48817d193e89bb5c8", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:9696";, "region": "regionOne"}], "id": "54bcd636cc3f45e8830493ee7c101535", "type": "network", "name": "neutron"}, {"endpoints": [{"id": "68972a99eda149418406d500dfdc0435", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13776/v3/79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}, {"id": "b161744633d24f38bd589264e8daa55a", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8776/v3/79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}, {"id": "ed76389060514a0eacfe82ab5dd61743", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8776/v3/79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}], "id": "7f6968d1800340308395ca94d52a9ad3", "type": "volumev3", "name": "cinderv3"}, {"endpoints": [{"id": "15f573d2877948a1b52b9e1aea5b0662", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13774/v2.1";, "region": "regionOne"}, {"id": "ce7715027b0447d29fc52179abe7b3a0", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8774/v2.1";, "region": "regionOne"}, {"id": "ec59c7bea1504f00bb38a2b9a02fd346", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8774/v2.1";, "region": "regionOne"}], "id": "b8a0a5cf10424be7a4891c641a122930", "type": "compute", "name": "nova"}, {"endpoints": [{"id": "09ac78ea2b784be5a7fe1b6067f791cc", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.ctlplane.localdomain:35357";, "region": "regionOne"}, {"id": "8e6bb333506b4175b2d4bc2a702e3004", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:5000";, "region": "regionOne"}, {"id": "c87c86be2ad7435a82795bf6fcf604ac", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13000";, "region": "regionOne"}], "id": "cc365c9f4dc94dc1bc0efda6d9a46567", "type": "identity", "name": "keystone"}, {"endpoints": [{"id": "1b2ddf2629b247e1b20c34a01199f42c", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.storage.localdomain:8080";, "region": "regionOne"}, {"id": "26c3d4e4ff08475eaa0a9f4a91076a60", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13808/v1/AUTH_79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}, {"id": "3c291cca9df44518bd6e613a4a8193cb", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.storage.localdomain:8080/v1/AUTH_79443079d65a45b5952e79b4fb434769";, "region": "regionOne"}], "id": "cd326ad376994c0ea1a784f91c10d97f", "type": "object-store", "name": "swift"}, {"endpoints": [{"id": "2cf3bb3dca644293a34cc5a62b5f4374", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8778/placement";, "region": "regionOne"}, {"id": "74ebbf3e6cbe48f2b884122e196647ae", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8778/placement";, "region": "regionOne"}, {"id": "8892dc0e1dfc420686b3fdb6c4883c4b", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13778/placement";, "region": "regionOne"}], "id": "dfabd68e2b6b474db722baad43936348", "type": "placement", "name": "placement"}, {"endpoints": [{"id": "15b412051e114052b513ad5763addcb7", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:9292";, "region": "regionOne"}, {"id": "a5fff1ad390b43e6ad256555396e8d73", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13292";, "region": "regionOne"}, {"id": "b5fc3a6645104f9c9c49cbf0e60823d7", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:9292";, "region": "regionOne"}], "id": "e6eb24e6dffc40c5a02247c1b79300ac", "type": "image", "name": "glance"}, {"endpoints": [{"id": "1d7a29007cfc4b4ab117fd076a2c1274", "interface": "internal", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8000/v1";, "region": "regionOne"}, {"id": "a4b17305a9d143ed90029e066da8352c", "interface": "public", "region_id": "regionOne", "url": "https://overcloud.localdomain:13005/v1";, "region": "regionOne"}, {"id": "da6deefd75b54226bb0e706f2c67b072", "interface": "admin", "region_id": "regionOne", "url": "https://overcloud.internalapi.localdomain:8000/v1";, "region": "regionOne"}], "id": "fad49abe356a4a428b1cf90f9b3d47bf", "type": "cloudformation", "name": "heat-cfn"}]}}
  run(Namespace(network_agent='1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf', description=None, enable=False, disable=True))
  Network client initialized using OpenStack SDK: <openstack.network.v2._proxy.Proxy object at 0x7f8090adb1f0>
  REQ: curl -g -i -X GET https://overcloud.localdomain:13696/v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf -H "User-Agent: openstacksdk/0.59.0 keystoneauth1/4.4.0 python-requests/2.25.1 CPython/3.9.7" -H "X-Auth-Token: {SHA256}5e301cec1d5e0140d198af0f542d3280ea35f868947b1a67fdc1fb08e2502071"
  Starting new HTTPS connection (1): overcloud.localdomain:13696
  https://overcloud.localdomain:13696 "GET /v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf HTTP/1.1" 200 279
  RESP: [200] content-encoding: gzip content-length: 279 content-type: application/json date: Thu, 28 Oct 2021 00:40:08 GMT server: Apache vary: Accept-Encoding via: 1.1 controller-2.internalapi.home.arpa:13696 x-openstack-request-id: req-fc0b6eda-4b65-47b6-acbd-734e5a855f8a
  RESP BODY: {"agent": {"binary": "ovn-controller", "host": "compute-1.home.arpa", "heartbeat_timestamp": "2021-10-28 00:40:08.674985", "availability_zone": "", "topic": "n/a", "description": "", "configurations": {"chassis_name": "1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf", "bridge-mappings": "datacentre:br-ex"}, "agent_type": "OVN Controller agent", "id": "1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf", "alive": true, "admin_state_up": true}}
  GET call to network for https://overcloud.localdomain:13696/v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf used request id req-fc0b6eda-4b65-47b6-acbd-734e5a855f8a
  REQ: curl -g -i -X PUT https://overcloud.localdomain:13696/v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf -H "Content-Type: application/json" -H "User-Agent: openstacksdk/0.59.0 keystoneauth1/4.4.0 python-requests/2.25.1 CPython/3.9.7" -H "X-Auth-Token: {SHA256}5e301cec1d5e0140d198af0f542d3280ea35f868947b1a67fdc1fb08e2502071" -d '{"agent": {"admin_state_up": false}}'
  https://overcloud.localdomain:13696 "PUT /v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf HTTP/1.1" 400 123
  RESP: [400] content-length: 123 content-type: application/json date: Thu, 28 Oct 2021 00:40:08 GMT server: Apache via: 1.1 controller-2.internalapi.home.arpa:13696 x-openstack-request-id: req-84c51d15-8cf6-481c-84e2-f5cec54a008e
  RESP BODY: {"NeutronError": {"type": "BadRequest", "message": "Bad agent request: OVN agent status cannot be updated.", "detail": ""}}
  PUT call to network for https://overcloud.localdomain:13696/v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf used request id req-84c51d15-8cf6-481c-84e2-f5cec54a008e
  BadRequestException: 400: Client Error for url: https://overcloud.localdomain:13696/v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf, Bad agent request: OVN agent status cannot be updated.
  Traceback (most recent call last):
    File "/usr/lib/python3.9/site-packages/cliff/app.py", line 407, in run_subcommand
      result = cmd.run(parsed_args)
    File "/usr/lib/python3.9/site-packages/osc_lib/command/command.py", line 39, in run
      return super(Command, self).run(parsed_args)
    File "/usr/lib/python3.9/site-packages/cliff/command.py", line 186, in run
      return_code = self.take_action(parsed_args) or 0
    File "/usr/lib/python3.9/site-packages/openstackclient/network/v2/network_agent.py", line 366, in take_action
      client.update_agent(obj, **attrs)
    File "/usr/lib/python3.9/site-packages/openstack/network/v2/_proxy.py", line 348, in update_agent
      return self._update(_agent.Agent, agent, **attrs)
    File "/usr/lib/python3.9/site-packages/openstack/proxy.py", line 48, in check
      return method(self, expected, actual, *args, **kwargs)
    File "/usr/lib/python3.9/site-packages/openstack/network/v2/_proxy.py", line 71, in _update
      return res.commit(self, base_path=base_path, if_revision=if_revision)
    File "/usr/lib/python3.9/site-packages/openstack/resource.py", line 1562, in commit
      return self._commit(session, request, self.commit_method, microversion,
    File "/usr/lib/python3.9/site-packages/openstack/resource.py", line 1590, in _commit
      self._translate_response(response, has_body=has_body)
    File "/usr/lib/python3.9/site-packages/openstack/resource.py", line 1177, in _translate_response
      exceptions.raise_from_response(response, error_message=error_message)
    File "/usr/lib/python3.9/site-packages/openstack/exceptions.py", line 236, in raise_from_response
      raise cls(
  openstack.exceptions.BadRequestException: BadRequestException: 400: Client Error for url: https://overcloud.localdomain:13696/v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf, Bad agent request: OVN agent status cannot be updated.
  clean_up SetNetworkAgent: BadRequestException: 400: Client Error for url: https://overcloud.localdomain:13696/v2.0/agents/1dc65f6b-d1ba-4d06-9ad6-4500bea8b9cf, Bad agent request: OVN agent status cannot be updated.
  END return value: 1
  ~~~

  [3]
  ~~~
  (overcloud) [stack@undercloud-0 ~]$ neutron agent-update 2e224307-eae5-56cc-8646-95e80432c55e --admin-state-down
  neutron CLI is deprecated and will be removed in the Z cycle. Use openstack CLI instead.
  Bad agent request: OVN agent status cannot be updated.
  Neutron server returns request_ids: ['req-dd67baa1-7adc-41f6-88d9-78b604af209e']
  ~~~

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References

[Bug 1949202] [NEW] ovn-controllers are listed as agents but cannot be disabled
From: David Vallee Delisle, 2021-10-29