1dcb01f70a
This change is the first step to support secure RBAC and allows usage of system scope credentials for Keystone API request. This change covers the following two items. - assignment of system scope roles to system user - credential parameters for authtoken middleware Depends-on: https://review.opendev.org/804325 Change-Id: I3fdb61f675836f7de4d83baa0d3f45c491afbe68