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[Colleen Murphy <colleen@xxxxxxxxxxx>]

** Also affects: keystone/rocky
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1815539

Title:
  Self-service policies for credential APIs are broken in stable/rocky

Status in OpenStack Identity (keystone):
  Triaged
Status in OpenStack Identity (keystone) rocky series:
  New

Bug description:
  Service-service policies for credential APIs are broken in
  stable/rocky. More specifically, Get/Update/Delete no longer works
  with the following policies.

  "identity:get_credential": "rule:admin_required or user_id:%(target.credential.user_id)s"
  "identity:update_credential": "rule:admin_required or user_id:%(target.credential.user_id)s"
  "identity:delete_credential": "rule:admin_required or user_id:%(target.credential.user_id)s"

  This used to work in Pike and Queens because we pass the entity to
  policy enforcement via get_member_from_driver.

  https://github.com/openstack/keystone/blob/stable/queens/keystone/credential/controllers.py#L36

  However, in stable/rocky we no longer pass the entity as part of the
  target.

  https://github.com/openstack/keystone/blob/stable/rocky/keystone/api/credentials.py#L86

  Therefore, any policy rule which has target.credential.* no longer
  works.

  Stein seems to be working again as the problem was fixed as part of
  https://bugs.launchpad.net/keystone/+bug/1788415.

  We'll need to fix stable/rocky by conveying the credential entity to
  the target again.

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