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[Lance Bragstad <lbragstad@xxxxxxxxx>]

fixed by - https://review.openstack.org/#/c/104066/

** Changed in: keystone
    Milestone: None => 2015.1.0

** Changed in: keystone
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1278739

Title:
  trusts in keystone fail in backend when impersonation is not provided

Status in Keystone:
  Fix Released

Bug description:
  When creating trusts in Keystone, if 'impersonation' is not provided
  Keystone fails out in the backend code. This should probably be handed
  at the controller level to be consistent across all backends.

  lbragstad@precise64:~/curl-examples$ cat create_trust.json
  {
      "trust": {
          "expires_at": "2014-02-27T18:30:59.999999Z",
          "project_id": "c7e2b98178e64418bb884929d3611b89",
          "impersonation": true,
          "roles": [
              {
                  "name": "admin"
              }
          ],
          "trustee_user_id": "bf3a4c9ef46d44fa9ce57349462b1998",
          "trustor_user_id": "406e6d96a30449069bf4241a00308b23"
      }
  }

  lbragstad@precise64:~/curl-examples$ cat create_trust_bad.json
  {
      "trust": {
          "expires_at": "2014-02-27T18:30:59.999999Z",
          "project_id": "c7e2b98178e64418bb884929d3611b89",
          "roles": [
              {
                  "name": "admin"
              }
          ],
          "trustee_user_id": "bf3a4c9ef46d44fa9ce57349462b1998",
          "trustor_user_id": "406e6d96a30449069bf4241a00308b23"
      }
  }

  Using impersonation in  the create_trust.json file returns a trust
  successfully:

  lbragstad@precise64:~/curl-examples$ curl -si -H "X-Auth-Token:$TOKEN" -H "Content-type:application/json" -d @create_trust.json http://localhost:5000/v3/OS-TRUST/trusts
  HTTP/1.1 201 Created
  Vary: X-Auth-Token
  Content-Type: application/json
  Content-Length: 675
  Date: Sun, 09 Feb 2014 04:36:56 GMT

  {"trust": {"impersonation": true, "roles_links": {"self":
  "http://10.0.2.15:5000/v3/OS-
  TRUST/trusts/12ce9f7214f04c018384f654f5ea9aa5/roles", "previous":
  null, "next": null}, "trustor_user_id":
  "406e6d96a30449069bf4241a00308b23", "links": {"self":
  "http://10.0.2.15:5000/v3/OS-
  TRUST/trusts/12ce9f7214f04c018384f654f5ea9aa5"}, "roles": [{"id":
  "937488fff5444edb9da1e93d20596d4b", "links": {"self":
  "http://10.0.2.15:5000/v3/roles/937488fff5444edb9da1e93d20596d4b"},
  "name": "admin"}], "expires_at": "2014-02-27T18:30:59.999999Z",
  "trustee_user_id": "bf3a4c9ef46d44fa9ce57349462b1998", "project_id":
  "c7e2b98178e64418bb884929d3611b89", "id":
  "12ce9f7214f04c018384f654f5ea9aa5"}}

  When using the request without impersonation defined I get:

  lbragstad@precise64:~/curl-examples$ curl -si -H "X-Auth-Token:$TOKEN" -H "Content-type:application/json" -d @create_trust_bad.json http://localhos
  t:5000/v3/OS-TRUST/trusts
  HTTP/1.1 500 Internal Server Error
  Vary: X-Auth-Token
  Content-Type: application/json
  Content-Length: 618
  Date: Sun, 09 Feb 2014 04:33:08 GMT

  {"error": {"message": "An unexpected error prevented the server from fulfilling your request. (OperationalError) (1048, \"Column 'impersonation
  ' cannot be null\") 'INSERT INTO trust (id, trustor_user_id, trustee_user_id, project_id, impersonation, deleted_at, expires_at, extra) VALUES
  (%s, %s, %s, %s, %s, %s, %s, %s)' ('b49ac0c7558a4450949c22c840db9794', '406e6d96a30449069bf4241a00308b23', 'bf3a4c9ef46d44fa9ce57349462b1998',
  'c7e2b98178e64418bb884929d3611b89', None, None, datetime.datetime(2014, 2, 27, 18, 30, 59, 999999), '{\"roles\": [{\"name\": \"admin\"}]}')", "
  code": 500, "title": "Internal Server Error"}}

  
  According to the Identity V3 API, 'impersonation' is a requirement when creating a trust. https://github.com/openstack/identity-api/blob/master/openstack-identity-api/v3/src/markdown/identity-api-v3-os-trust-ext.md#trusts

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