Description of problem: In OSP16.2 a traceback occurs when openstack overcloud external-upgrade run is executed:

openstack overcloud external-upgrade run -y --stack overcloud --tags container_image_prepare
2021-04-14 17:17:54.503 454087 INFO osc_lib.shell [-] command: overcloud external-upgrade run -> tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun (auth=True)
2021-04-14 17:17:54.505 454087 INFO osc_lib.clientmanager [-] Using auth plugin: password
2021-04-14 17:17:54.506 454087 DEBUG osc_lib.clientmanager [-] Using parameters {'auth_url': 'https://192.168.24.2:13000', 'project_name': 'admin', 'project_domain_name': 'Default', 'username': 'admin', 'user_domain_name': 'Default', 'password': '***'} setup_auth /usr/lib/python3.6/site-packages/osc_lib/clientmanager.py:157
2021-04-14 17:17:54.508 454087 DEBUG osc_lib.clientmanager [-] Get auth_ref auth_ref /usr/lib/python3.6/site-packages/osc_lib/clientmanager.py:201
2021-04-14 17:17:59.418 454087 WARNING tripleoclient.plugin [-] Waiting for messages on queue 'tripleo' with no timeout.
ERROR! the role 'tripleo_container_stop' was not found in /var/lib/mistral/12297d9e-66c4-4bc1-8491-3d72302ab2c8/roles:/var/lib/mistral/12297d9e-66c4-4bc1-8491-3d72302ab2c8/roles:/root/.ansible/roles:/usr/share/ansible/tripleo-roles:/usr/share/ansible/roles:/etc/ansible/roles:/usr/share/openstack-tripleo-validations/roles:/var/lib/mistral/12297d9e-66c4-4bc1-8491-3d72302ab2c8:/var/lib/mistral/12297d9e-66c4-4bc1-8491-3d72302ab2c8

The error appears to be in '/var/lib/mistral/12297d9e-66c4-4bc1-8491-3d72302ab2c8/external_upgrade_steps_tasks.yaml': line 358, column 13, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

  - import_role:
      name: tripleo_container_stop
            ^ here

Ansible failed, check log at /var/log/containers/mistral/package_update.log.
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun [-] Exception occured while running the command: RuntimeError: Update failed with: Ansible failed, check log at /var/log/containers/mistral/package_update.log.
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun Traceback (most recent call last):
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun   File "/usr/lib/python3.6/site-packages/tripleoclient/command.py", line 32, in run
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun     super(Command, self).run(parsed_args)
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun   File "/usr/lib/python3.6/site-packages/osc_lib/command/command.py", line 41, in run
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun     return super(Command, self).run(parsed_args)
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun   File "/usr/lib/python3.6/site-packages/cliff/command.py", line 185, in run
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun     return_code = self.take_action(parsed_args) or 0
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun   File "/usr/lib/python3.6/site-packages/tripleoclient/v1/overcloud_external_upgrade.py", line 158, in take_action
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun     priv_key=key, forks=parsed_args.ansible_forks)
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun   File "/usr/lib/python3.6/site-packages/tripleoclient/utils.py", line 1410, in run_update_ansible_action
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun     verbosity=verbosity, extra_vars=extra_vars)
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun   File "/usr/lib/python3.6/site-packages/tripleoclient/workflows/package_update.py", line 127, in update_ansible
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun     raise RuntimeError('Update failed with: {}'.format(payload['message']))
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun RuntimeError: Update failed with: Ansible failed, check log at /var/log/containers/mistral/package_update.log.
2021-04-14 17:18:06.984 454087 ERROR tripleoclient.v1.overcloud_external_upgrade.ExternalUpgradeRun 
2021-04-14 17:18:06.987 454087 ERROR openstack [-] Update failed with: Ansible failed, check log at /var/log/containers/mistral/package_update.log.: RuntimeError: Update failed with: Ansible failed, check log at /var/log/containers/mistral/package_update.log.
2021-04-14 17:18:06.987 454087 INFO osc_lib.shell [-] END return value: 1
(undercloud) [stack@undercloud-0 ~]$ 

Version-Release number of selected component (if applicable): RHOS-16.2-RHEL-8-20210409.n.0


How reproducible: Every time


Steps to Reproduce:
1. From cli execute command:  openstack overcloud external-upgrade run -y --stack overcloud --tags container_image_prepare
2.
3.

Actual results: Command executes with traceback shown above.


Expected results: Command executes with no traceback


Additional info: