Without this, ceilometer db gets hammered with gnocchi swift events.
Keystone creds are required so middleware can query for id.
Related change: I5c0f4f1a2c7fe7eb39ea6441970e9ac0946a4ec1
Change-Id: I9a7a80252703e470a69dc10352e7ece45ab23150
(cherry picked from commit 37447494de)