// TODO(roberthbailey): Can we do this without having credentials to talk
    // to the cloud provider?
    externalID, err := instances.ExternalID(kl.hostname)
    if err != nil {
        return nil, fmt.Errorf("failed to get external ID from cloud provider: %v", err)
    }
    node.Spec.ExternalID = externalID
    // TODO: We can't assume that the node has credentials to talk to the
    // cloudprovider from arbitrary nodes. At most, we should talk to a
    // local metadata server here.
    instanceID, err := instances.InstanceID(node.Name)