def _configure_manager(self):
        """
        Create the manager to handle the instances, and also another
        to handle flavors.
        """
        self._manager = CloudBlockStorageManager(self,
                resource_class=CloudBlockStorageVolume, response_key="volume",
                uri_base="volumes")
        self._types_manager = BaseManager(self,
                resource_class=CloudBlockStorageVolumeType,
                response_key="volume_type", uri_base="types")
        self._snapshot_manager = CloudBlockStorageSnapshotManager(self,
                resource_class=CloudBlockStorageSnapshot,
                response_key="snapshot", uri_base="snapshots")