Persist last error message and display on 'show' for OpenStack DBaaS (Trove)

Historically it has been very difficult to determine the cause of a failure in Trove. This is due to the fact that errors may be logged in multiple places, none of which are available to the end user. With the advent of Notifications in Trove, however, it is now feasible to persist error messages in the db so that t...

Create metadata storage for trove instances for OpenStack DBaaS (Trove)

Instance metadata is a feature that has been requested frequently by our users. They need a way to store critical information for their instances and have that be associated with the instance so that it is displayed whenever that instance is listed via the API. This also becomes very usable from a testing perspectiv...