func (kp *kubeProxyConfig) Unmarshal(docmap kubeadmapi.DocumentMap) error {
	return kp.configBase.Unmarshal(docmap, &kp.config)
}

func kubeProxyDefaultBindAddress(localAdvertiseAddress string) string {
	ip := netutils.ParseIPSloppy(localAdvertiseAddress)
	if ip.To4() != nil {
		return kubeadmapiv1.DefaultProxyBindAddressv4
	}
	return kubeadmapiv1.DefaultProxyBindAddressv6
}

func (kp *kubeProxyConfig) Get() interface{} {

	// TODO have a "real" external address
	if err := o.RecommendedOptions.SecureServing.MaybeDefaultWithSelfSignedCerts("localhost", nil, []net.IP{netutils.ParseIPSloppy("127.0.0.1")}); err != nil {
		return nil, fmt.Errorf("error creating self-signed certificates: %v", err)
	}

	serverConfig := genericapiserver.NewRecommendedConfig(apiserver.Codecs)

	}
	h.localAddresses[dev] = make([]string, 0)
	h.localAddresses[dev] = append(h.localAddresses[dev], ips...)
	return nil
}

func (h *FakeNetlinkHandle) isValidForSet(ipString string) bool {
	ip := net.ParseIPSloppy(ipString)
	if h.IsIPv6 != (ip.To4() == nil) {
		return false
	}
	if h.IsIPv6 && ip.IsLinkLocalUnicast() {
		return false
	}
	if ip.IsLoopback() {
		return false
	}
	return true

// based on the given bind address. IPv6 addresses are enclosed in square
// brackets for appending port.
func getDefaultAddresses(bindAddress string) (defaultHealthzAddress, defaultMetricsAddress string) {
	if netutils.ParseIPSloppy(bindAddress).To4() != nil {
		return "0.0.0.0", "127.0.0.1"
	}
	return "[::]", "[::1]"

	}

	return complete(cfg)
}

func isLocalHost(u *url.URL) bool {
	host := u.Hostname()
	if strings.EqualFold(host, "localhost") {
		return true
	}

	netIP := netutils.ParseIPSloppy(host)
	if netIP != nil {
		return netIP.IsLoopback()
	}
	return false

		return discovery.AddressTypeIPv6
	}
	return discovery.AddressTypeIPv4
}

func getAddressType(address string) *discovery.AddressType {
	ip := netutils.ParseIPSloppy(address)
	if ip == nil {
		return nil
	}
	addressType := discovery.AddressTypeIPv4
	if ip.To4() == nil {
		addressType = discovery.AddressTypeIPv6
	}
	return &addressType
}

			CommonName:   "test-common-name",
			Organization: testCertOrganization,
			Usages:       []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
			AltNames: certutil.AltNames{
				IPs:      []net.IP{netutils.ParseIPSloppy("10.100.0.1")},
				DNSNames: []string{"test-domain.space"},
			},
			NotBefore: notBefore,
		},
		NotAfter: notAfter,
	}
	cert, key, err := pkiutil.NewCertAndKey(caCert, caKey, cfg)
	if err != nil {