configLogIf(ctx, fmt.Errorf("Unable to parse subnet configuration: %w", err))
		} else {
			globalSubnetConfig.Update(subnetConfig, globalIsCICD)
			globalSubnetConfig.ApplyEnv() // update environment settings for Console UI
		}
	case config.CallhomeSubSys:
		callhomeCfg, err := callhome.LookupConfig(s[config.CallhomeSubSys][config.Default])
		if err != nil {
			configLogIf(ctx, fmt.Errorf("Unable to load callhome config: %w", err))

	certsDir := ctxt.CertsDir
	certsSet := ctxt.certsDirSet

	if consoleAddr == "" {
		p, err := xnet.GetFreePort()
		if err != nil {
			logger.FatalIf(err, "Unable to get free port for Console UI on the host")
		}
		// hold the port
		l, err := net.Listen("TCP", fmt.Sprintf(":%s", p.String()))
		if err == nil {
			defer l.Close()
		}
		consoleAddr = net.JoinHostPort("", p.String())
	}

		Usage:  "bind N number of listeners per ADDRESS:PORT",
		EnvVar: "MINIO_LISTENERS",
		Hidden: true,
	},
	cli.StringFlag{
		Name:   "console-address",
		Usage:  "bind to a specific ADDRESS:PORT for embedded Console UI, ADDRESS can be an IP or hostname",
		EnvVar: "MINIO_CONSOLE_ADDRESS",
	},
	cli.DurationFlag{
		Name:   "shutdown-timeout",
		Value:  xhttp.DefaultShutdownTimeout,
		Usage:  "shutdown timeout to gracefully shutdown server",