parallels-pvm: Optionally assign new MAC addresses to imported VMs [GH-1404]

New config option:
reassign_mac (boolean) - If this is "false" the MAC address of the first
NIC will reused when imported else a new MAC address will be generated by
Parallels. Defaults to "false".

builder/parallels/common/driver.go

@@ -16,7 +16,7 @@ import (
 // extremely specific.
 type Driver interface {
 	// Import a VM
-	Import(string, string, string) error
+	Import(string, string, string, bool) error
 
 	// Checks if the VM with the given name is running.
 	IsRunning(string) (bool, error)

builder/parallels/common/driver_9.go

@@ -19,7 +19,7 @@ type Parallels9Driver struct {
 	PrlctlPath string
 }
 
-func (d *Parallels9Driver) Import(name, srcPath, dstDir string) error {
+func (d *Parallels9Driver) Import(name, srcPath, dstDir string, reassignMac bool) error {
 
 	err := d.Prlctl("register", srcPath, "--preserve-uuid")
 	if err != nil {
@@ -31,10 +31,13 @@ func (d *Parallels9Driver) Import(name, srcPath, dstDir string) error {
 		return err
 	}
 
-	srcMac, err := getFirtsMacAddress(srcPath)
+	srcMac := "auto"
+	if !reassignMac {
+		srcMac, err = getFirtsMacAddress(srcPath)
 		if err != nil {
 			return err
 		}
+	}
 
 	err = d.Prlctl("clone", srcId, "--name", name, "--dst", dstDir)
 	if err != nil {

builder/parallels/common/driver_mock.go

@@ -45,7 +45,7 @@ type DriverMock struct {
 	IpAddressError  error
 }
 
-func (d *DriverMock) Import(name, srcPath, dstPath string) error {
+func (d *DriverMock) Import(name, srcPath, dstPath string, reassignMac bool) error {
 	d.ImportCalled = true
 	d.ImportName = name
 	d.ImportSrcPath = srcPath

builder/parallels/pvm/config.go

@@ -2,10 +2,11 @@ package pvm
 
 import (
 	"fmt"
+	"os"
+
 	parallelscommon "github.com/mitchellh/packer/builder/parallels/common"
 	"github.com/mitchellh/packer/common"
 	"github.com/mitchellh/packer/packer"
-	"os"
 )
 
 // Config is the configuration structure for the builder.
@@ -23,6 +24,7 @@ type Config struct {
 	BootCommand []string `mapstructure:"boot_command"`
 	SourcePath  string   `mapstructure:"source_path"`
 	VMName      string   `mapstructure:"vm_name"`
+	ReassignMac bool     `mapstructure:"reassign_mac"`
 
 	tpl *packer.ConfigTemplate
 }

builder/parallels/pvm/step_import.go

@@ -20,7 +20,7 @@ func (s *StepImport) Run(state multistep.StateBag) multistep.StepAction {
 	config := state.Get("config").(*Config)
 
 	ui.Say(fmt.Sprintf("Importing VM: %s", s.SourcePath))
-	if err := driver.Import(s.Name, s.SourcePath, config.OutputDir); err != nil {
+	if err := driver.Import(s.Name, s.SourcePath, config.OutputDir, config.ReassignMac); err != nil {
 		err := fmt.Errorf("Error importing VM: %s", err)
 		state.Put("error", err)
 		ui.Error(err.Error())

website/source/docs/builders/parallels-pvm.html.markdown

@@ -78,6 +78,10 @@ each category, the available options are alphabetized and described.
   be attached. The files listed in this configuration will all be put
   into the root directory of the floppy disk; sub-directories are not supported.
 
+* `reassign_mac` (boolean) - If this is "false" the MAC address of the first
+  NIC will reused when imported else a new MAC address will be generated by
+  Parallels. Defaults to "false".
+
 * `output_directory` (string) - This is the path to the directory where the
   resulting virtual machine will be created. This may be relative or absolute.
   If relative, the path is relative to the working directory when `packer`