add target port as command flag

cmd/daemon.go

@@ -35,10 +35,13 @@ import (
 )
 
 func newDaemonCommand() *cobra.Command {
-	var host string
-	var driver string
-	var logLevel string
-	var blockMultipleHosts bool
+	var (
+		host               string
+		driver             string
+		logLevel           string
+		blockMultipleHosts bool
+		port               int
+	)
 	var cmd = &cobra.Command{
 		Use:   "daemon",
 		Short: "Setup a daemon",
@@ -48,17 +51,18 @@ func newDaemonCommand() *cobra.Command {
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			host = viper.GetString("host")
-			return createDaemon(host, driver, logLevel, blockMultipleHosts)
+			return createDaemon(host, driver, logLevel, blockMultipleHosts, port)
 		},
 	}
 	flags := cmd.Flags()
 	flags.StringVar(&logLevel, "log", "info", "Log level of SCSI target daemon")
 	flags.StringVar(&driver, "driver", "iscsi", "SCSI low level driver")
+	flags.IntVar(&port, "port", 3260, "iSCSI default target port")
 	flags.BoolVar(&blockMultipleHosts, "block-multiple-hosts", false, "Disable login from multiple hosts")
 	return cmd
 }
 
-func createDaemon(host, driver, level string, blockMultipleHosts bool) error {
+func createDaemon(host, driver, level string, blockMultipleHosts bool, port int) error {
 	switch level {
 	case "info":
 		log.SetLevel(log.InfoLevel)
@@ -101,7 +105,7 @@ func createDaemon(host, driver, level string, blockMultipleHosts bool) error {
 	// comment this to avoid concurrent issue
 	// runtime.GOMAXPROCS(runtime.NumCPU())
 	// run a service
-	go targetDriver.Run()
+	go targetDriver.Run(port)
 
 	serverConfig := &apiserver.Config{
 		Addrs: []apiserver.Addr{},

mock/remote.go

@@ -180,7 +180,7 @@ func (r *remoteBs) startScsiTarget(cfg *config.Config) error {
 	}
 	r.targetDriver.NewTarget(r.tgtName, cfg)
 	//r.targetDriver.SetClusterIP(r.clusterIP)
-	go r.targetDriver.Run()
+	go r.targetDriver.Run(3260)
 	// Wait here so that listener get started
 	time.Sleep(1 * time.Second)
 

pkg/port/iscsit/iscsid.go

@@ -192,8 +192,8 @@ func (s *ISCSITargetDriver) HasPortal(tgtName string, tpgt uint16, portal string
 	}
 }
 
-func (s *ISCSITargetDriver) Run() error {
-	l, err := net.Listen("tcp", ":3260")
+func (s *ISCSITargetDriver) Run(port int) error {
+	l, err := net.Listen("tcp", ":"+strconv.Itoa(port))
 	if err != nil {
 		log.Error(err)
 		os.Exit(1)

pkg/scsi/drivers.go

@@ -24,7 +24,7 @@ import (
 )
 
 type SCSITargetDriver interface {
-	Run() error
+	Run(port int) error
 	NewTarget(string, *config.Config) error
 	RereadTargetLUNMap()
 	Close() error