'Destroy an instance from the DB if we\'re a top level cell.'

def instance_fault_create_at_top(self, message, instance_fault, **kwargs):

    if (not self._at_the_top()):
        return
    items_to_remove = ['id']
    for key in items_to_remove:
        instance_fault.pop(key, None)
    LOG.debug('Got    message    to    create    instance    fault:    %s', instance_fault)
    fault = objects.InstanceFault(context=message.ctxt)
    fault.update(instance_fault)
    fault.create()
