Allow configurable VNC bind IP for VMware builders

Signed-off-by: Ian Duffy <ian@ianduffy.ie>

builder/vmware/common/run_config.go

@@ -11,8 +11,9 @@ type RunConfig struct {
 	Headless    bool   `mapstructure:"headless"`
 	RawBootWait string `mapstructure:"boot_wait"`
 
-	VNCPortMin uint `mapstructure:"vnc_port_min"`
-	VNCPortMax uint `mapstructure:"vnc_port_max"`
+	VNCBindAddress string `mapstructure:"vnc_bind_address"`
+	VNCPortMin     uint   `mapstructure:"vnc_port_min"`
+	VNCPortMax     uint   `mapstructure:"vnc_port_max"`
 
 	BootWait time.Duration ``
 }
@@ -30,6 +31,10 @@ func (c *RunConfig) Prepare(ctx *interpolate.Context) []error {
 		c.VNCPortMax = 6000
 	}
 
+	if c.VNCBindAddress == "" {
+		c.VNCBindAddress = "127.0.0.1"
+	}
+
 	var errs []error
 	var err error
 	if c.RawBootWait != "" {

builder/vmware/common/step_configure_vnc.go

@@ -21,15 +21,16 @@ import (
 // Produces:
 //   vnc_port uint - The port that VNC is configured to listen on.
 type StepConfigureVNC struct {
-	VNCPortMin uint
-	VNCPortMax uint
+	VNCBindAddress string
+	VNCPortMin     uint
+	VNCPortMax     uint
 }
 
 type VNCAddressFinder interface {
-	VNCAddress(uint, uint) (string, uint, error)
+	VNCAddress(string, uint, uint) (string, uint, error)
 }
 
-func (StepConfigureVNC) VNCAddress(portMin, portMax uint) (string, uint, error) {
+func (StepConfigureVNC) VNCAddress(vncBindAddress string, portMin, portMax uint) (string, uint, error) {
 	// Find an open VNC port. Note that this can still fail later on
 	// because we have to release the port at some point. But this does its
 	// best.
@@ -43,13 +44,13 @@ func (StepConfigureVNC) VNCAddress(portMin, portMax uint) (string, uint, error)
 		}
 
 		log.Printf("Trying port: %d", vncPort)
-		l, err := net.Listen("tcp", fmt.Sprintf(":%d", vncPort))
+		l, err := net.Listen("tcp", fmt.Sprintf("%s:%d", vncBindAddress, vncPort))
 		if err == nil {
 			defer l.Close()
 			break
 		}
 	}
-	return "127.0.0.1", vncPort, nil
+	return vncBindAddress, vncPort, nil
 }
 
 func (s *StepConfigureVNC) Run(state multistep.StateBag) multistep.StepAction {
@@ -80,7 +81,7 @@ func (s *StepConfigureVNC) Run(state multistep.StateBag) multistep.StepAction {
 		vncFinder = s
 	}
 	log.Printf("Looking for available port between %d and %d", s.VNCPortMin, s.VNCPortMax)
-	vncIp, vncPort, err := vncFinder.VNCAddress(s.VNCPortMin, s.VNCPortMax)
+	vncBindAddress, vncPort, err := vncFinder.VNCAddress(s.VNCBindAddress, s.VNCPortMin, s.VNCPortMax)
 	if err != nil {
 		state.Put("error", err)
 		ui.Error(err.Error())
@@ -92,6 +93,7 @@ func (s *StepConfigureVNC) Run(state multistep.StateBag) multistep.StepAction {
 	vmxData := ParseVMX(string(vmxBytes))
 	vmxData["remotedisplay.vnc.enabled"] = "TRUE"
 	vmxData["remotedisplay.vnc.port"] = fmt.Sprintf("%d", vncPort)
+	vmxData["remotedisplay.vnc.ip"] = fmt.Sprintf("%s", vncBindAddress)
 
 	if err := WriteVMX(vmxPath, vmxData); err != nil {
 		err := fmt.Errorf("Error writing VMX data: %s", err)
@@ -101,7 +103,7 @@ func (s *StepConfigureVNC) Run(state multistep.StateBag) multistep.StepAction {
 	}
 
 	state.Put("vnc_port", vncPort)
-	state.Put("vnc_ip", vncIp)
+	state.Put("vnc_ip", vncBindAddress)
 
 	return multistep.ActionContinue
 }

builder/vmware/iso/builder.go

@@ -254,8 +254,9 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			HTTPPortMax: b.config.HTTPPortMax,
 		},
 		&vmwcommon.StepConfigureVNC{
-			VNCPortMin: b.config.VNCPortMin,
-			VNCPortMax: b.config.VNCPortMax,
+			VNCBindAddress: b.config.VNCBindAddress,
+			VNCPortMin:     b.config.VNCPortMin,
+			VNCPortMax:     b.config.VNCPortMax,
 		},
 		&StepRegister{
 			Format: b.config.Format,

builder/vmware/iso/driver_esx5.go

@@ -176,7 +176,7 @@ func (d *ESX5Driver) HostIP() (string, error) {
 	return host, err
 }
 
-func (d *ESX5Driver) VNCAddress(portMin, portMax uint) (string, uint, error) {
+func (d *ESX5Driver) VNCAddress(vncBindIP string, portMin, portMax uint) (string, uint, error) {
 	var vncPort uint
 
 	//Process ports ESXi is listening on to determine which are available

builder/vmware/vmx/builder.go

@@ -79,8 +79,9 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			HTTPPortMax: b.config.HTTPPortMax,
 		},
 		&vmwcommon.StepConfigureVNC{
-			VNCPortMin: b.config.VNCPortMin,
-			VNCPortMax: b.config.VNCPortMax,
+			VNCBindAddress: b.config.VNCBindAddress,
+			VNCPortMin:     b.config.VNCPortMin,
+			VNCPortMax:     b.config.VNCPortMax,
 		},
 		&vmwcommon.StepRun{
 			BootWait:           b.config.BootWait,