417 lines
11 KiB
Go
417 lines
11 KiB
Go
package common
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import (
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"bytes"
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"context"
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"fmt"
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"log"
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"os/exec"
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"regexp"
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"strconv"
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"strings"
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"time"
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versionUtil "github.com/hashicorp/go-version"
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packer "github.com/hashicorp/packer/common"
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)
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type VBox42Driver struct {
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// This is the path to the "VBoxManage" application.
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VBoxManagePath string
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}
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func (d *VBox42Driver) CreateSATAController(vmName string, name string, portcount int) error {
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version, err := d.Version()
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if err != nil {
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return err
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}
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portCountArg := "--portcount"
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currentVersion, err := versionUtil.NewVersion(version)
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if err != nil {
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return err
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}
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firstVersionUsingPortCount, err := versionUtil.NewVersion("4.3")
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if err != nil {
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return err
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}
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if currentVersion.LessThan(firstVersionUsingPortCount) {
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portCountArg = "--sataportcount"
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}
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command := []string{
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"storagectl", vmName,
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"--name", name,
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"--add", "sata",
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portCountArg, strconv.Itoa(portcount),
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}
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return d.VBoxManage(command...)
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}
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func (d *VBox42Driver) CreateSCSIController(vmName string, name string) error {
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command := []string{
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"storagectl", vmName,
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"--name", name,
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"--add", "scsi",
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"--controller", "LSILogic",
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}
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return d.VBoxManage(command...)
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}
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func (d *VBox42Driver) Delete(name string) error {
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ctx := context.TODO()
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return retry.Config{
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Tries: 5,
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RetryDelay: (&retry.Backoff{InitialBackoff: 1 * time.Second, MaxBackoff: 1 * time.Second, Multiplier: 2}).Linear,
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}.Run(ctx, func(ctx context.Context) error {
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err := d.VBoxManage("unregistervm", name, "--delete")
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return err
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})
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}
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func (d *VBox42Driver) Iso() (string, error) {
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var stdout bytes.Buffer
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cmd := exec.Command(d.VBoxManagePath, "list", "systemproperties")
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cmd.Stdout = &stdout
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if err := cmd.Run(); err != nil {
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return "", err
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}
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DefaultGuestAdditionsRe := regexp.MustCompile("Default Guest Additions ISO:(.+)")
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for _, line := range strings.Split(stdout.String(), "\n") {
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// Need to trim off CR character when running in windows
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// Trimming whitespaces at this point helps to filter out empty value
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line = strings.TrimRight(line, " \r")
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matches := DefaultGuestAdditionsRe.FindStringSubmatch(line)
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if matches == nil {
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continue
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}
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isoname := strings.Trim(matches[1], " \r\n")
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log.Printf("Found Default Guest Additions ISO: %s", isoname)
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return isoname, nil
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}
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return "", fmt.Errorf("Cannot find \"Default Guest Additions ISO\" in vboxmanage output (or it is empty)")
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}
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func (d *VBox42Driver) Import(name string, path string, flags []string) error {
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args := []string{
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"import", path,
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"--vsys", "0",
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"--vmname", name,
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}
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args = append(args, flags...)
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return d.VBoxManage(args...)
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}
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func (d *VBox42Driver) IsRunning(name string) (bool, error) {
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var stdout bytes.Buffer
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cmd := exec.Command(d.VBoxManagePath, "showvminfo", name, "--machinereadable")
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cmd.Stdout = &stdout
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if err := cmd.Run(); err != nil {
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return false, err
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}
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for _, line := range strings.Split(stdout.String(), "\n") {
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// Need to trim off CR character when running in windows
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line = strings.TrimRight(line, "\r")
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if line == `VMState="running"` {
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return true, nil
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}
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// We consider "stopping" to still be running. We wait for it to
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// be completely stopped or some other state.
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if line == `VMState="stopping"` {
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return true, nil
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}
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// We consider "paused" to still be running. We wait for it to
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// be completely stopped or some other state.
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if line == `VMState="paused"` {
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return true, nil
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}
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}
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return false, nil
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}
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func (d *VBox42Driver) Stop(name string) error {
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if err := d.VBoxManage("controlvm", name, "poweroff"); err != nil {
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return err
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}
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// We sleep here for a little bit to let the session "unlock"
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time.Sleep(2 * time.Second)
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return nil
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}
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func (d *VBox42Driver) SuppressMessages() error {
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extraData := map[string]string{
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"GUI/RegistrationData": "triesLeft=0",
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"GUI/SuppressMessages": "confirmInputCapture,remindAboutAutoCapture,remindAboutMouseIntegrationOff,remindAboutMouseIntegrationOn,remindAboutWrongColorDepth",
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"GUI/UpdateDate": fmt.Sprintf("1 d, %d-01-01, stable", time.Now().Year()+1),
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"GUI/UpdateCheckCount": "60",
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}
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for k, v := range extraData {
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if err := d.VBoxManage("setextradata", "global", k, v); err != nil {
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return err
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}
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}
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return nil
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}
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func (d *VBox42Driver) VBoxManage(args ...string) error {
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_, err := d.VBoxManageWithOutput(args...)
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return err
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}
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func (d *VBox42Driver) VBoxManageWithOutput(args ...string) (string, error) {
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var stdout, stderr bytes.Buffer
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log.Printf("Executing VBoxManage: %#v", args)
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cmd := exec.Command(d.VBoxManagePath, args...)
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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stdoutString := strings.TrimSpace(stdout.String())
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stderrString := strings.TrimSpace(stderr.String())
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if _, ok := err.(*exec.ExitError); ok {
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err = fmt.Errorf("VBoxManage error: %s", stderrString)
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}
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if err == nil {
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// Sometimes VBoxManage gives us an error with a zero exit code,
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// so we also regexp match an error string.
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m, _ := regexp.MatchString("VBoxManage([.a-z]+?): error:", stderrString)
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if m {
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err = fmt.Errorf("VBoxManage error: %s", stderrString)
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}
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}
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log.Printf("stdout: %s", stdoutString)
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log.Printf("stderr: %s", stderrString)
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return stdoutString, err
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}
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func (d *VBox42Driver) Verify() error {
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return nil
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}
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func (d *VBox42Driver) Version() (string, error) {
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var stdout bytes.Buffer
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cmd := exec.Command(d.VBoxManagePath, "--version")
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cmd.Stdout = &stdout
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if err := cmd.Run(); err != nil {
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return "", err
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}
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versionOutput := strings.TrimSpace(stdout.String())
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log.Printf("VBoxManage --version output: %s", versionOutput)
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// If the "--version" output contains vboxdrv, then this is indicative
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// of problems with the VirtualBox setup and we shouldn't really continue,
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// whether or not we can read the version.
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if strings.Contains(versionOutput, "vboxdrv") {
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return "", fmt.Errorf("VirtualBox is not properly setup: %s", versionOutput)
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}
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versionRe := regexp.MustCompile("^([.0-9]+)(?:_(?:RC|OSEr)[0-9]+)?")
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matches := versionRe.FindAllStringSubmatch(versionOutput, 1)
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if matches == nil || len(matches[0]) != 2 {
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return "", fmt.Errorf("No version found: %s", versionOutput)
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}
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log.Printf("VirtualBox version: %s", matches[0][1])
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return matches[0][1], nil
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}
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// LoadSnapshots load the snapshots for a VM instance
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func (d *VBox42Driver) LoadSnapshots(vmName string) (*VBoxSnapshot, error) {
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if vmName == "" {
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panic("Argument empty exception: vmName")
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}
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log.Printf("Executing LoadSnapshots: VM: %s", vmName)
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stdoutString, err := d.VBoxManageWithOutput("snapshot", vmName, "list", "--machinereadable")
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if nil != err {
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return nil, err
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}
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var rootNode *VBoxSnapshot
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if stdoutString != "This machine does not have any snapshots" {
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rootNode, err = ParseSnapshotData(stdoutString)
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if nil != err {
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return nil, err
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}
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}
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return rootNode, nil
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}
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func (d *VBox42Driver) CreateSnapshot(vmname string, snapshotName string) error {
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if vmname == "" {
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panic("Argument empty exception: vmname")
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}
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log.Printf("Executing CreateSnapshot: VM: %s, SnapshotName %s", vmname, snapshotName)
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return d.VBoxManage("snapshot", vmname, "take", snapshotName)
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}
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func (d *VBox42Driver) HasSnapshots(vmname string) (bool, error) {
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if vmname == "" {
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panic("Argument empty exception: vmname")
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}
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log.Printf("Executing HasSnapshots: VM: %s", vmname)
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sn, err := d.LoadSnapshots(vmname)
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if nil != err {
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return false, err
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}
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return nil != sn, nil
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}
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func (d *VBox42Driver) GetCurrentSnapshot(vmname string) (*VBoxSnapshot, error) {
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if vmname == "" {
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panic("Argument empty exception: vmname")
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}
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log.Printf("Executing GetCurrentSnapshot: VM: %s", vmname)
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sn, err := d.LoadSnapshots(vmname)
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if nil != err {
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return nil, err
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}
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return sn.GetCurrentSnapshot(), nil
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}
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func (d *VBox42Driver) SetSnapshot(vmname string, sn *VBoxSnapshot) error {
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if vmname == "" {
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panic("Argument empty exception: vmname")
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}
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if nil == sn {
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panic("Argument null exception: sn")
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}
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log.Printf("Executing SetSnapshot: VM: %s, SnapshotName %s", vmname, sn.UUID)
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return d.VBoxManage("snapshot", vmname, "restore", sn.UUID)
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}
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func (d *VBox42Driver) DeleteSnapshot(vmname string, sn *VBoxSnapshot) error {
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if vmname == "" {
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panic("Argument empty exception: vmname")
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}
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if nil == sn {
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panic("Argument null exception: sn")
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}
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log.Printf("Executing DeleteSnapshot: VM: %s, SnapshotName %s", vmname, sn.UUID)
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return d.VBoxManage("snapshot", vmname, "delete", sn.UUID)
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}
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/*
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func (d *VBox42Driver) SnapshotExists(vmname string, snapshotName string) (bool, error) {
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log.Printf("Executing SnapshotExists: VM %s, SnapshotName %s", vmname, snapshotName)
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var stdout, stderr bytes.Buffer
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cmd := exec.Command(d.VBoxManagePath, "snapshot", vmname, "list", "--machinereadable")
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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if _, ok := err.(*exec.ExitError); ok {
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stderrString := strings.TrimSpace(stderr.String())
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return false, (fmt.Errorf("VBoxManage error: %s", stderrString))
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}
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SnapshotNameRe := regexp.MustCompile(fmt.Sprintf("SnapshotName[^=]*=[^\"]*\"%s\"", snapshotName))
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for _, line := range strings.Split(stdout.String(), "\n") {
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if SnapshotNameRe.MatchString(line) {
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return true, nil
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}
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}
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return false, nil
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}
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func (d *VBox42Driver) GetParentSnapshot(vmname string, snapshotName string) (string, error) {
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log.Printf("Executing GetParentSnapshot: VM %s, SnapshotName %s", vmname, snapshotName)
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var stdout, stderr bytes.Buffer
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cmd := exec.Command(d.VBoxManagePath, "snapshot", vmname, "list", "--machinereadable")
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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if _, ok := err.(*exec.ExitError); ok {
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stderrString := strings.TrimSpace(stderr.String())
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return "", (fmt.Errorf("VBoxManage error: %s", stderrString))
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}
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SnapshotNameRe := regexp.MustCompile(fmt.Sprintf("SnapshotName[^=]*=[^\"]*\"%s\"", snapshotName))
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var snapshot string
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for _, line := range strings.Split(stdout.String(), "\n") {
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if SnapshotNameRe.MatchString(line) {
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snapshot = line
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break
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}
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}
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if snapshot == "" {
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return "", (fmt.Errorf("Snapshot %s does not exist", snapshotName))
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}
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SnapshotNamePartsRe := regexp.MustCompile("SnapshotName(?P<Path>(-[1-9]+)*)")
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matches := SnapshotNamePartsRe.FindStringSubmatch(snapshot)
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log.Printf("************ Snapshot %s name parts", snapshot)
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log.Printf("Matches %#v\n", matches)
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log.Printf("Node %s\n", matches[0])
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log.Printf("Path %s\n", matches[1])
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log.Printf("Leaf %s\n", matches[2])
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leaf := matches[2]
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node := matches[0]
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if node == "" {
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return "", (fmt.Errorf("Unsupported format for snapshot %s", snapshot))
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}
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if leaf != "" && node != "" {
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SnapshotNodeRe := regexp.MustCompile("^(?P<Node>SnapshotName[^=]*)=[^\"]*\"(?P<Name>[^\"]+)\"")
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parentNode := node[:len(node)-len(leaf)]
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log.Printf("Parent node %s\n", parentNode)
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var parentName string
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for _, line := range strings.Split(stdout.String(), "\n") {
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if matches := SnapshotNodeRe.FindStringSubmatch(line); len(matches) > 1 && parentNode == matches[1] {
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parentName = matches[2]
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log.Printf("Parent Snapshot name %s\n", parentName)
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break
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}
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}
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if parentName == "" {
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return "", (fmt.Errorf("Internal error: Unable to find name for snapshot node %s", parentNode))
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}
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return parentName, nil
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}
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return "", nil
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}
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*/
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