option to keep the VM registered with esxi

builder/vmware/iso/builder.go

@@ -46,6 +46,7 @@ type Config struct {
 	Version             string   `mapstructure:"version"`
 	VMName              string   `mapstructure:"vm_name"`
 	BootCommand         []string `mapstructure:"boot_command"`
+	KeepRegistered      bool     `mapstructure:"keep_registered"`
 	SkipCompaction      bool     `mapstructure:"skip_compaction"`
 	VMXTemplatePath     string   `mapstructure:"vmx_template_path"`
 	VMXDiskTemplatePath string   `mapstructure:"vmx_disk_template_path"`
@@ -147,7 +148,6 @@ func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
 	if b.config.RemotePort == 0 {
 		b.config.RemotePort = 22
 	}
-
 	if b.config.VMXTemplatePath != "" {
 		if err := b.validateVMXTemplatePath(); err != nil {
 			errs = packer.MultiErrorAppend(

builder/vmware/iso/step_register.go

@@ -41,6 +41,14 @@ func (s *StepRegister) Cleanup(state multistep.StateBag) {
 
 	driver := state.Get("driver").(vmwcommon.Driver)
 	ui := state.Get("ui").(packer.Ui)
+	config := state.Get("config").(*Config)
+
+	_, cancelled := state.GetOk(multistep.StateCancelled)
+	_, halted := state.GetOk(multistep.StateHalted)
+	if (config.KeepRegistered == true) && (!cancelled && !halted) {
+		ui.Say("Keeping virtual machine registered with ESX host (keep_registered = true)")
+		return
+	}
 
 	if remoteDriver, ok := driver.(RemoteDriver); ok {
 		if s.Format == "" {

builder/vmware/iso/step_register_test.go

@@ -32,6 +32,10 @@ func TestStepRegister_remoteDriver(t *testing.T) {
 	step := new(StepRegister)
 
 	driver := new(RemoteDriverMock)
+	var config Config
+	config.KeepRegistered = false
+	state.Put("config", &config)
+
 	state.Put("driver", driver)
 	state.Put("vmx_path", "foo")
 
@@ -63,3 +67,29 @@ func TestStepRegister_remoteDriver(t *testing.T) {
 		t.Fatal("should unregister proper path")
 	}
 }
+func TestStepRegister_WithoutUnregister_remoteDriver(t *testing.T) {
+	state := testState(t)
+	step := new(StepRegister)
+
+	driver := new(RemoteDriverMock)
+	var config Config
+	config.KeepRegistered = true 
+	state.Put("config", &config)
+
+	state.Put("driver", driver)
+	state.Put("vmx_path", "foo")
+
+	// Test the run
+	if action := step.Run(state); action != multistep.ActionContinue {
+		t.Fatalf("bad action: %#v", action)
+	}
+	if _, ok := state.GetOk("error"); ok {
+		t.Fatal("should NOT have error")
+	}
+
+	// cleanup
+	step.Cleanup(state)
+	if driver.UnregisterCalled {
+		t.Fatal("unregister should not be called")
+	}
+}