Open Stack

Hi every body,
I am a new user to openstack trove. As far as I found (from the process of
creating datastore and database in trove) trove works like this: For each
datastore instance there is a nova-compute image that this instance will be
launch on that (and also a cinder storage assigned to this instance)
Therefore there is not a centralized database which could be manage by
openstack administrator. As far as I know there are two types of cloud
database: 1)virtual machine image database and 2)dbaas. For dbaas it should
not be like having a virtual machine instance per each database and
database provisioning should be manageable by system administrator (not
client). Therefore could somebody explain for me how trove works and how
could we consider it dbaas and not virtual machine image database?
Best regards.

-- 
A.Nazemian
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