Comment 2 for bug 1963685

setUpClass (octavia_tempest_plugin.tests.scenario.v2.test_traffic_ops.TrafficOperationsScenarioTest)
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Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):

      File "/home/ubuntu/git/charmed-openstack-tester/.tox/func-target/lib/python3.6/site-packages/tempest/test.py", line 168, in setUpClass
    raise value.with_traceback(trace)

      File "/home/ubuntu/git/charmed-openstack-tester/.tox/func-target/lib/python3.6/site-packages/tempest/test.py", line 153, in setUpClass
    cls.setup_credentials()

      File "/home/ubuntu/git/charmed-openstack-tester/.tox/func-target/lib/python3.6/site-packages/octavia_tempest_plugin/tests/test_base.py", line 153, in setup_credentials
    **params)['role_assignments']

      File "/home/ubuntu/git/charmed-openstack-tester/.tox/func-target/lib/python3.6/site-packages/tempest/lib/services/identity/v3/role_assignments_client.py", line 46, in list_role_assignments
    resp, body = self.get(url)

      File "/home/ubuntu/git/charmed-openstack-tester/.tox/func-target/lib/python3.6/site-packages/tempest/lib/common/rest_client.py", line 314, in get
    return self.request('GET', url, extra_headers, headers)

      File "/home/ubuntu/git/charmed-openstack-tester/.tox/func-target/lib/python3.6/site-packages/tempest/lib/common/rest_client.py", line 703, in request
    self._error_checker(resp, resp_body)

      File "/home/ubuntu/git/charmed-openstack-tester/.tox/func-target/lib/python3.6/site-packages/tempest/lib/common/rest_client.py", line 804, in _error_checker
    raise exceptions.Forbidden(resp_body, resp=resp)

    tempest.lib.exceptions.Forbidden: Forbidden
Details: {'code': 403, 'message': 'You are not authorized to perform the requested action: identity:list_role_assignments.', 'title': 'Forbidden'}