},
					},
					util.IstioMetadataKey: {
						Fields: map[string]*structpb.Value{
							"services": {
								Kind: &structpb.Value_ListValue{
									ListValue: &structpb.ListValue{
										Values: []*structpb.Value{
											{
												Kind: &structpb.Value_StructValue{
													StructValue: &structpb.Struct{
														Fields: map[string]*structpb.Value{

		return
	}

	im := getOrCreateIstioMetadata(cluster)

	// Add services field into istio metadata
	im.Fields["services"] = &structpb.Value{
		Kind: &structpb.Value_ListValue{
			ListValue: &structpb.ListValue{
				Values: []*structpb.Value{},
			},
		},
	}

	svcMetaList := im.Fields["services"].GetListValue()

				Metadata: &core.Metadata{
					FilterMetadata: map[string]*structpb.Struct{
						util.IstioMetadataKey: {
							Fields: map[string]*structpb.Value{
								"services": {Kind: &structpb.Value_ListValue{ListValue: &structpb.ListValue{Values: []*structpb.Value{
									{Kind: &structpb.Value_StructValue{StructValue: &structpb.Struct{Fields: map[string]*structpb.Value{
										"host": {
											Kind: &structpb.Value_StringValue{