def is_cached(self, image_id):
        return os.path.exists(self.get_image_filepath(image_id))
Return cluster with provision progress updated field.
dataset/ETHPy150Open rcbops/glance-buildpackage/glance/image_cache/drivers/xattr.py/Driver.is_cached--crossover with--dataset/ETHPy150Open openstack/sahara/sahara/conductor/manager.py/ConductorManager.cluster_provision_progress_update