cs-->pc
    sd-->ep
```

### Config Translation

	// Note: we do not rely on istio env package to retrieve configuration. We relies on viper.
	// This is just to make sure the reference doc tool can generate doc with these vars as env variable at istio.io.
	env.Register(envName, defaultValue, usage)
	bindViper(name)
}

func bindViper(name string) {
	if err := viper.BindPFlag(name, rootCmd.Flags().Lookup(name)); err != nil {
		log.Error(err)
		os.Exit(1)
	}
}

	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 {
		return nil, err
	}