md["ISTIO_METAJSON_LABELS"] = string(labelsJSON)
	}

	// TODO the defaults should be controlled by meshConfig/proxyConfig; if flags not given to the command proxyCOnfig takes precedence
	if dnsCapture {
		md["ISTIO_META_DNS_CAPTURE"] = strconv.FormatBool(dnsCapture)
	}
	if autoRegister {
		md["ISTIO_META_AUTO_REGISTER_GROUP"] = wg.Name
	}

	proxyConfig, err := protomarshal.ToJSONMap(meshConfig.DefaultConfig)
	if err != nil {