def instance_on_disk(self, instance):
    instance_path = libvirt_utils.get_instance_path(instance)
    LOG.debug('Checking instance files accessibility %s', instance_path)
    return os.access(instance_path, os.W_OK)
def instance_on_disk(self, instance):
    instance_path = libvirt_utils.get_instance_path(instance)
    LOG.debug('Checking instance files accessibility %s', instance_path)
    return os.access(instance_path, os.W_OK)