Dear All We are using Mistral 7.0.1.1 with Openstack Rocky. (with federated users) We can create and execute a workflow via horizon, but cron triggers always fail with this error: { "result": "The action raised an exception [ action_ex_id=ef878c48-d0ad-4564-9b7e-a06f07a70ded, action_cls='<class 'mistral.actions.action_factory.NovaAction'>', attributes='{u'client_method_name': u'servers.find'}', params='{ u'action_region': u'ch-zh1', u'name': u'42724489-1912-44d1-9a59-6c7a4bebebfa' }' ] \n NovaAction.servers.find failed: You are not authorized to perform the requested action: identity:validate_token. (HTTP 403) (Request-ID: req-ec1aea36-c198-4307-bf01-58aca74fad33) " } Adding the role *admin* or *service* to the user logged in horizon is "fixing" the issue, I mean that the cron trigger then works as expected, but it would be obviously a bad idea to do this for all normal users ;-) So my question: is it a config problem on our side ? is it a known bug? or is it a feature in the sense that cron triggers are for normal users? After digging in the keystone debug logs (see at the end below), I found that RBAC check identity:validate_token an deny the authorization. But according to the policy.json (in keystone and in horizon), rule:owner should be enough to grant it...: "identity:validate_token": "rule:service_admin_or_owner", "service_admin_or_owner": "rule:service_or_admin or rule:owner", "service_or_admin": "rule:admin_required or rule:service_role", "service_role": "role:service", "owner": "user_id:%(user_id)s or user_id:%(target.token.user_id)s", Thank you in advance for your help. Best Regards Francois Scheurer Keystone logs: 2019-09-05 09:38:00.902 29 DEBUG keystone.policy.backends.rules [req-1a276b9d-8276-4ec3-b516-f51f86cd1df6 fsc fscproject - testdom testdom] enforce identity:validate_token: { 'service_project_id':None, 'service_user_id':None, 'service_user_domain_id':None, 'service_project_domain_id':None, 'trustor_id':None, 'user_domain_id':u'testdom', 'domain_id':None, 'trust_id':u'mytrustid', 'project_domain_id':u'testdom', 'service_roles':[], 'group_ids':[], 'user_id':u'fsc', 'roles':[ u'_member_', u'creator', u'reader', u'heat_stack_owner', u'member', u'load-balancer_member'], 'system_scope':None, 'trustee_id':None, 'domain_name':None, 'is_admin_project':True, 'token':<TokenModel (audit_id=0LAsW_0dQMWXh2cTZTLcWA, audit_chain_id=[u'0LAsW_0dQMWXh2cTZTLcWA']) at 0x7f208f4a3bd0>, 'project_id':u'fscproject' } enforce /var/lib/kolla/venv/local/lib/python2.7/site-packages/keystone/policy/backends/rules.py:33 2019-09-05 09:38:00.920 29 WARNING keystone.common.wsgi [req-1a276b9d-8276-4ec3-b516-f51f86cd1df6 fsc fscproject - testdom testdom] You are not authorized to perform the requested action: identity:validate_token.: *ForbiddenAction: You are not authorized to perform the requested action: identity:validate_token.* -- EveryWare AG François Scheurer Senior Systems Engineer Zurlindenstrasse 52a CH-8003 Zürich tel: +41 44 466 60 00 fax: +41 44 466 60 10 mail: francois.scheurer@everyware.ch web: http://www.everyware.ch