errs = append(errs, err)
	}

	if err := PerformAddonsUpgrade(client, cfg, patchesDir, out); err != nil {
		errs = append(errs, err)
	}

	return errorsutil.NewAggregate(errs)
}

// PerformAddonsUpgrade performs the upgrade of the coredns and kube-proxy addons.
func PerformAddonsUpgrade(client clientset.Interface, cfg *kubeadmapi.InitConfiguration, patchesDir string, out io.Writer) error {