def _configure_manager(self):
        """
        Creates a manager to handle the instances, and another
        to handle flavors.
        """
        self._manager = CloudDatabaseManager(self,
                resource_class=CloudDatabaseInstance, response_key="instance",
                uri_base="instances")
        self._flavor_manager = BaseManager(self,
                resource_class=CloudDatabaseFlavor, response_key="flavor",
                uri_base="flavors")
        self._backup_manager = CloudDatabaseBackupManager(self,
                resource_class=CloudDatabaseBackup, response_key="backup",
                uri_base="backups")