This is necessary as the settings in this file are deployment
specific, so the defaults will never be correct. For simplicity,
the enablement environment includes the sample pools.yaml content
from the Designate docs. It can then be easily modified to match
the actual intended deployment environment.
Depends-On: https://review.openstack.org/580524
Change-Id: I84cc3b06ac77c723994be0f49960a93e0dbba0ad