WildcardIPv4        WildcardValue        = "0.0.0.0"
	WildcardIPv6        WildcardValue        = "::"
	DNSLookupFamilyIPv4 DNSLookupFamilyValue = "V4_ONLY"
	DNSLookupFamilyIPv6 DNSLookupFamilyValue = "V6_ONLY"
	DNSLookupFamilyIPS  DNSLookupFamilyValue = "ALL"
)

func ProxyConfig(value *model.NodeMetaProxyConfig) Instance {
	return newOption("config", value)
}

func PilotSubjectAltName(value []string) Instance {

				Context: networking.EnvoyFilter_ANY,
			},
			Patch: &networking.EnvoyFilter_Patch{
				Operation: networking.EnvoyFilter_Patch_MERGE,
				Value:     buildPatchStruct(`{"dns_lookup_family":"V6_ONLY"}`),
			},
		},
		{
			ApplyTo: networking.EnvoyFilter_CLUSTER,
			Match: &networking.EnvoyFilter_EnvoyConfigObjectMatch{
				Context: networking.EnvoyFilter_ANY,
			},

		},
		{
			testName: "dns lookup family v6",
			key:      "dns_lookup_family",
			option:   option.DNSLookupFamily(option.DNSLookupFamilyIPv6),
			expected: option.DNSLookupFamilyValue("V6_ONLY"),
		},
		{
			testName: "dns lookup family dual stack",
			key:      "dns_lookup_family",
			option:   option.DNSLookupFamily(option.DNSLookupFamilyIPS),
			expected: option.DNSLookupFamilyValue("ALL"),
		},