Name: "tcp",
		},
		Retry: echo.Retry{
			NoRetry: true,
		},
	})
	if err != nil {
		return err
	}
	return nil
}

// BuildQueryCommon is the shared function to construct prom query for istio_request_total metric.
func BuildQueryCommon(labels map[string]string, ns string) (sourceQuery, destinationQuery, appQuery prometheus.Query) {
	sourceQuery.Metric = "istio_requests_total"

		labels["request_operation"] = "getoperation"
	}
	if protocol == grpcProtocol {
		labels["grpc_response_status"] = "OK"
		labels["request_protocol"] = "grpc"
	}

	_, destinationQuery, _ = BuildQueryCommon(labels, apps.Namespace.Name())
	return destinationQuery