}
	if len(port) > 0 && (port[0] == '-' || port[len(port)-1] == '-') {
		errs = append(errs, "must not begin or end with a hyphen")
	}
	return errs
}

// IsValidIP tests that the argument is a valid IP address.
func IsValidIP(fldPath *field.Path, value string) field.ErrorList {
	var allErrors field.ErrorList
	if netutils.ParseIPSloppy(value) == nil {

		},
		{
			name: "ipv4 with zone",
			in:   "169.254.0.0%eth0",
			err:  "must be a valid IP address",
		},
	} {
		t.Run(tc.name, func(t *testing.T) {
			errs := IsValidIP(field.NewPath(""), tc.in)
			if tc.err == "" {
				if len(errs) != 0 {
					t.Errorf("expected %q to be valid but got: %v", tc.in, errs)
				}
			} else {
				if len(errs) != 1 {

	allErrs := field.ErrorList{}
	for i, ingress := range status.Ingress {
		idxPath := fldPath.Child("ingress").Index(i)
		if len(ingress.IP) > 0 {
			allErrs = append(allErrs, validation.IsValidIP(idxPath.Child("ip"), ingress.IP)...)
		}
		if len(ingress.Hostname) > 0 {
			for _, msg := range validation.IsDNS1123Subdomain(ingress.Hostname) {

		}
		for i, ns := range dnsConfig.Nameservers {
			allErrs = append(allErrs, validation.IsValidIP(fldPath.Child("nameservers").Index(i), ns)...)
		}
		// Validate searches.
		if len(dnsConfig.Searches) > MaxDNSSearchPaths {