Documentation Assessment: The undercloud stackrc file is a keystone v2 rc. When switching from a v3 rc file (such as the v3 overcloudrc), some of the v3 environment variables will still be present. Keystone authentication may not work correctly. All OpenStack-related environment variables are now cleared in stackrc before the undercloud values are set. Variables from a previous rc file can no longer be present in the environment after sourcing stackrc. Keystone authentication works correctly. Might need to assess whether a small note is required post-deployment. Estimated Workload: Minimal, 1 hour at max.
Assigning to Dan for review.
No note required. This is essentially a behind-the-scenes fix.