Seen here:
http://logs.openstack.org/98/668598/10/check/watcher-tempest-basic_optim/e10d3f9/controller/logs/screen-watcher-api.txt.gz#_Jul_22_10_31_49_684009
Jul 22 10:31:49.684009 ubuntu-bionic-ovh-bhs1-0009171642 <email address hidden>[1883]: DEBUG oslo_policy.policy [None req-6f194d6a-2186-4f11-b93c-d344f6d0ae0d None None] enforce: rule="action_plan:get" creds={"auth_token": "***", "auth_token_info": {"token": {"audit_ids": ["7vhN5VIdQuK7IRjfrPNo8w"], "auth_token": "***", "catalog": [{"endpoints": [{"id": "58fdf15446e94d99a81df13acd15936d", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/image"}], "id": "0788a71230bc4fee9b61c7d8365ebfb9", "name": "glance", "type": "image"}, {"endpoints": [{"id": "517c1bf90e8d454697e945bcc1717cd0", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/volume/v2/c309b2021a5c44adb3b1581b43e4a3ae"}], "id": "0a7dd3ce443a4bb1a6ebed47fc5b2a95", "name": "cinderv2", "type": "volumev2"}, {"endpoints": [{"id": "12b87baccf5141bb80169361cc697430", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/infra-optim"}, {"id": "6973e079d25042cca6ab47d0226c4e95", "interface": "admin", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/infra-optim"}, {"id": "e10a3d32974b46ffbad6fd9ce11e9dcc", "interface": "internal", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/infra-optim"}], "id": "10b6f8aa05ba4668a6bc24b7767ae46a", "name": "watcher", "type": "infra-optim"}, {"endpoints": [{"id": "c05a101eaf8c4066aee235a9d48aedbe", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/volume/v3/c309b2021a5c44adb3b1581b43e4a3ae"}], "id": "394d7f28b30b4850a3086bf895620030", "name": "cinderv3", "type": "volumev3"}, {"endpoints": [{"id": "343a245482a74efe9a0d4df48e3cdd54", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95:9696/"}], "id": "4f8f40e6ede84080be465204c15506f4", "name": "neutron", "type": "network"}, {"endpoints": [{"id": "c34fd4258a364c00aa962dd95e0fc21c", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/compute/v2/c309b2021a5c44adb3b1581b43e4a3ae"}], "id": "69c7f8f23fc8467893f2c1bbef50d663", "name": "nova_legacy", "type": "compute_legacy"}, {"endpoints": [{"id": "7b5df71cca494a6a9d80e92d13f52672", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/compute/v2.1"}], "id": "b7e62537798a4c279a7ce1c660d3e41b", "name": "nova", "type": "compute"}, {"endpoints": [{"id": "405964fccd3943e6adb80e90eee0a618", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/volume/v3/c309b2021a5c44adb3b1581b43e4a3ae"}], "id": "d198122637e7439e873678573a11700b", "name": "cinder", "type": "block-storage"}, {"endpoints": [{"id": "bdd43fec091b4f21b6c2e70f7c6016f5", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/placement"}], "id": "d28de79fe5bb475393ce4889a8bd8511", "name": "placement", "type": "placement"}, {"endpoints": [{"id": "9757123230be4bb784c0e79ee3f31634", "interface": "admin", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/metric"}, {"id": "adeacdc8cbf24e119aef13a7b5778fcb", "interface": "internal", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/metric"}, {"id": "b0c26959049a408996d7165110667d07", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/metric"}], "id": "f70f6a9f44634fd7aa83b41623758cf7", "name": "gnocchi", "type": "metric"}, {"endpoints": [{"id": "165b15e00a874c84844238cf036ba619", "interface": "admin", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/identity"}, {"id": "e3dfd0aab2b543d5bb8c853a524569a6", "interface": "public", "region": "RegionOne", "region_id": "RegionOne", "url": "http://158.69.69.95/identity"}], "id": "f9aedd3d01d344bbb7197af6c55a999b", "name": "keystone", "type": "identity"}], "expires_at": "2019-07-22T11:31:10.000000Z", "is_domain": false, "issued_at": "2019-07-22T10:31:10.000000Z", "methods": ["password"], "project": {"domain": {"id": "default", "name": "Default"}, "id": "c309b2021a5c44adb3b1581b43e4a3ae", "name": "admin"}, "roles": [{"id": "b9fe7c2524ae44149164ed4ee82d9302", "name": "member"}, {"id": "f06abd8a1362465db91537bb1edf0f28", "name": "admin"}, {"id": "b96c545b26b34523a1ea73e95966266b", "name": "reader"}], "user": {"domain": {"id": "default", "name": "Default"}, "id": "99862ef0537744b6bed8d70d326dc923", "name": "admin", "password_expires_at": "***"}, "version": "v3"}}, "domain": "default", "domain_id": "default", "domain_name": "Default", "global_request_id": null, "is_admin": null, "is_admin_project": true, "project": "c309b2021a5c44adb3b1581b43e4a3ae", "project_domain": null, "project_id": "c309b2021a5c44adb3b1581b43e4a3ae", "project_name": null, "read_only": false, "request_id": "req-6f194d6a-2186-4f11-b93c-d344f6d0ae0d", "resource_uuid": null, "roles": ["member", "admin", "reader"], "show_deleted": null, "system_scope": null, "tenant": "c309b2021a5c44adb3b1581b43e4a3ae", "timestamp": "2019-07-22T10:31:49.670286", "user": "99862ef0537744b6bed8d70d326dc923", "user_domain": null, "user_id": "99862ef0537744b6bed8d70d326dc923", "user_identity": "99862ef0537744b6bed8d70d326dc923 c309b2021a5c44adb3b1581b43e4a3ae default - -", "user_name": null} target=cannot format data, exception: Expected a Mapping, got <class 'watcher.objects.action_plan.ActionPlan'> instead. {{(pid=1884) enforce /usr/local/lib/python2.7/dist-packages/oslo_policy/policy.py:902}}
I've seen this before and it generally means the wrong type of object is being passed to the target kwarg in the policy enforce check, in this case an ActionPlan object is being passed when a dict should be passed instead.
