func (b *Builder) Prepare(raws ...interface{}) error {
var md mapstructure.Metadata
decoderConfig := &mapstructure.DecoderConfig{
Metadata: &md,
Result: &b.config,
}
decoder, err := mapstructure.NewDecoder(decoderConfig)
if err != nil {
return err
}
for _, raw := range raws {
err := decoder.Decode(raw)
if err != nil {
return err
}
}
// Accumulate any errors
errs := make([]error, 0)
// Unused keys are errors
if len(md.Unused) > 0 {
sort.Strings(md.Unused)
for _, unused := range md.Unused {
if unused != "type" && !strings.HasPrefix(unused, "packer_") {
errs = append(
errs, fmt.Errorf("Unknown configuration key: %s", unused))
}
}
}
if b.config.DiskName == "" {
b.config.DiskName = "disk"
}
if b.config.DiskSize == 0 {
b.config.DiskSize = 40000
}
if b.config.FloppyFiles == nil {
b.config.FloppyFiles = make([]string, 0)
}
if b.config.GuestOSType == "" {
b.config.GuestOSType = "other"
}
if b.config.VMName == "" {
b.config.VMName = fmt.Sprintf("packer-%s", b.config.PackerBuildName)
}
if b.config.HTTPPortMin == 0 {
b.config.HTTPPortMin = 8000
}
if b.config.HTTPPortMax == 0 {
b.config.HTTPPortMax = 9000
}
if b.config.RawBootWait == "" {
b.config.RawBootWait = "10s"
}
if b.config.VNCPortMin == 0 {
b.config.VNCPortMin = 5900
}
if b.config.VNCPortMax == 0 {
b.config.VNCPortMax = 6000
}
if b.config.OutputDir == "" {
b.config.OutputDir = fmt.Sprintf("output-%s", b.config.PackerBuildName)
}
if b.config.SSHPort == 0 {
b.config.SSHPort = 22
}
if b.config.ToolsUploadPath == "" {
b.config.ToolsUploadPath = "{{ .Flavor }}.iso"
}
if b.config.HTTPPortMin > b.config.HTTPPortMax {
errs = append(errs, errors.New("http_port_min must be less than http_port_max"))
}
if b.config.ISOChecksum == "" {
errs = append(errs, errors.New("Due to large file sizes, an iso_checksum is required"))
} else {
b.config.ISOChecksum = strings.ToLower(b.config.ISOChecksum)
}
if b.config.ISOChecksumType == "" {
errs = append(errs, errors.New("The iso_checksum_type must be specified."))
} else {
b.config.ISOChecksumType = strings.ToLower(b.config.ISOChecksumType)
if h := common.HashForType(b.config.ISOChecksumType); h == nil {
errs = append(
errs,
fmt.Errorf("Unsupported checksum type: %s", b.config.ISOChecksumType))
}
}
if b.config.ISOUrl == "" {
errs = append(errs, errors.New("An iso_url must be specified."))
} else {
url, err := url.Parse(b.config.ISOUrl)
if err != nil {
errs = append(errs, fmt.Errorf("iso_url is not a valid URL: %s", err))
} else {
if url.Scheme == "" {
url.Scheme = "file"
}
if url.Scheme == "file" {
if _, err := os.Stat(url.Path); err != nil {
errs = append(errs, fmt.Errorf("iso_url points to bad file: %s", err))
}
} else {
supportedSchemes := []string{"file", "http", "https"}
scheme := strings.ToLower(url.Scheme)
found := false
for _, supported := range supportedSchemes {
if scheme == supported {
found = true
break
}
}
if !found {
errs = append(errs, fmt.Errorf("Unsupported URL scheme in iso_url: %s", scheme))
}
}
}
if len(errs) == 0 {
// Put the URL back together since we may have modified it
b.config.ISOUrl = url.String()
}
}
if !b.config.PackerForce {
if _, err := os.Stat(b.config.OutputDir); err == nil {
errs = append(
errs,
errors.New("Output directory already exists. It must not exist."))
}
}
if b.config.SSHUser == "" {
errs = append(errs, errors.New("An ssh_username must be specified."))
}
if b.config.RawBootWait != "" {
b.config.bootWait, err = time.ParseDuration(b.config.RawBootWait)
if err != nil {
errs = append(errs, fmt.Errorf("Failed parsing boot_wait: %s", err))
}
}
if b.config.RawShutdownTimeout == "" {
b.config.RawShutdownTimeout = "5m"
}
b.config.shutdownTimeout, err = time.ParseDuration(b.config.RawShutdownTimeout)
if err != nil {
errs = append(errs, fmt.Errorf("Failed parsing shutdown_timeout: %s", err))
}
if b.config.RawSSHWaitTimeout == "" {
b.config.RawSSHWaitTimeout = "20m"
}
b.config.sshWaitTimeout, err = time.ParseDuration(b.config.RawSSHWaitTimeout)
if err != nil {
errs = append(errs, fmt.Errorf("Failed parsing ssh_wait_timeout: %s", err))
}
if _, err := template.New("path").Parse(b.config.ToolsUploadPath); err != nil {
errs = append(errs, fmt.Errorf("tools_upload_path invalid: %s", err))
}
if b.config.VNCPortMin > b.config.VNCPortMax {
errs = append(errs, fmt.Errorf("vnc_port_min must be less than vnc_port_max"))
}
b.driver, err = NewDriver()
if err != nil {
errs = append(errs, fmt.Errorf("Failed creating VMware driver: %s", err))
}
if len(errs) > 0 {
return &packer.MultiError{errs}
}
return nil
}
func (s stepDownloadISO) Run(state map[string]interface{}) multistep.StepAction {
cache := state["cache"].(packer.Cache)
config := state["config"].(*config)
ui := state["ui"].(packer.Ui)
checksum, err := hex.DecodeString(config.ISOChecksum)
if err != nil {
state["error"] = fmt.Errorf("Error parsing checksum: %s", err)
return multistep.ActionHalt
}
log.Printf("Acquiring lock to download the ISO.")
cachePath := cache.Lock(config.ISOUrl)
defer cache.Unlock(config.ISOUrl)
downloadConfig := &common.DownloadConfig{
Url: config.ISOUrl,
TargetPath: cachePath,
CopyFile: false,
Hash: common.HashForType(config.ISOChecksumType),
Checksum: checksum,
}
download := common.NewDownloadClient(downloadConfig)
downloadCompleteCh := make(chan error, 1)
go func() {
ui.Say("Copying or downloading ISO. Progress will be reported periodically.")
cachePath, err = download.Get()
downloadCompleteCh <- err
}()
progressTicker := time.NewTicker(5 * time.Second)
defer progressTicker.Stop()
DownloadWaitLoop:
for {
select {
case err := <-downloadCompleteCh:
if err != nil {
err := fmt.Errorf("Error downloading ISO: %s", err)
state["error"] = err
ui.Error(err.Error())
return multistep.ActionHalt
}
break DownloadWaitLoop
case <-progressTicker.C:
ui.Message(fmt.Sprintf("Download progress: %d%%", download.PercentProgress()))
case <-time.After(1 * time.Second):
if _, ok := state[multistep.StateCancelled]; ok {
ui.Say("Interrupt received. Cancelling download...")
return multistep.ActionHalt
}
}
}
log.Printf("Path to ISO on disk: %s", cachePath)
state["iso_path"] = cachePath
return multistep.ActionContinue
}
func (s *stepDownloadISO) Run(state map[string]interface{}) multistep.StepAction {
cache := state["cache"].(packer.Cache)
config := state["config"].(*config)
ui := state["ui"].(packer.Ui)
checksum, err := hex.DecodeString(config.ISOChecksum)
if err != nil {
state["error"] = fmt.Errorf("Error parsing checksum: %s", err)
return multistep.ActionHalt
}
log.Printf("Acquiring lock to download the ISO.")
cachePath := cache.Lock(config.ISOUrl)
defer cache.Unlock(config.ISOUrl)
downloadConfig := &common.DownloadConfig{
Url: config.ISOUrl,
TargetPath: cachePath,
CopyFile: false,
Hash: common.HashForType(config.ISOChecksumType),
Checksum: checksum,
}
download := common.NewDownloadClient(downloadConfig)
downloadCompleteCh := make(chan error, 1)
go func() {
ui.Say("Copying or downloading ISO. Progress will be reported periodically.")
cachePath, err = download.Get()
downloadCompleteCh <- err
}()
progressTicker := time.NewTicker(5 * time.Second)
defer progressTicker.Stop()
DownloadWaitLoop:
for {
select {
case err := <-downloadCompleteCh:
if err != nil {
err := fmt.Errorf("Error downloading ISO: %s", err)
state["error"] = err
ui.Error(err.Error())
return multistep.ActionHalt
}
break DownloadWaitLoop
case <-progressTicker.C:
ui.Message(fmt.Sprintf("Download progress: %d%%", download.PercentProgress()))
case <-time.After(1 * time.Second):
if _, ok := state[multistep.StateCancelled]; ok {
ui.Say("Interrupt received. Cancelling download...")
return multistep.ActionHalt
}
}
}
// VirtualBox is really dumb and can't figure out that the file is an
// ISO unless it has a ".iso" extension. We can't modify the cache
// filenames so we just do a copy.
tempdir, err := ioutil.TempDir("", "packer")
if err != nil {
state["error"] = fmt.Errorf("Error copying ISO: %s", err)
return multistep.ActionHalt
}
s.isoCopyDir = tempdir
f, err := os.Create(filepath.Join(tempdir, "image.iso"))
if err != nil {
state["error"] = fmt.Errorf("Error copying ISO: %s", err)
return multistep.ActionHalt
}
defer f.Close()
sourceF, err := os.Open(cachePath)
if err != nil {
state["error"] = fmt.Errorf("Error copying ISO: %s", err)
return multistep.ActionHalt
}
defer sourceF.Close()
log.Printf("Copying ISO to temp location: %s", tempdir)
if _, err := io.Copy(f, sourceF); err != nil {
state["error"] = fmt.Errorf("Error copying ISO: %s", err)
return multistep.ActionHalt
}
log.Printf("Path to ISO on disk: %s", cachePath)
state["iso_path"] = f.Name()
return multistep.ActionContinue
}
func (b *Builder) Prepare(raws ...interface{}) error {
md, err := common.DecodeConfig(&b.config, raws...)
if err != nil {
return err
}
// Accumulate any errors
errs := common.CheckUnusedConfig(md)
if b.config.DiskSize == 0 {
b.config.DiskSize = 40000
}
if b.config.FloppyFiles == nil {
b.config.FloppyFiles = make([]string, 0)
}
if b.config.GuestAdditionsPath == "" {
b.config.GuestAdditionsPath = "VBoxGuestAdditions.iso"
}
if b.config.GuestOSType == "" {
b.config.GuestOSType = "Other"
}
if b.config.HTTPPortMin == 0 {
b.config.HTTPPortMin = 8000
}
if b.config.HTTPPortMax == 0 {
b.config.HTTPPortMax = 9000
}
if b.config.OutputDir == "" {
b.config.OutputDir = fmt.Sprintf("output-%s", b.config.PackerBuildName)
}
if b.config.RawBootWait == "" {
b.config.RawBootWait = "10s"
}
if b.config.SSHHostPortMin == 0 {
b.config.SSHHostPortMin = 2222
}
if b.config.SSHHostPortMax == 0 {
b.config.SSHHostPortMax = 4444
}
if b.config.SSHPort == 0 {
b.config.SSHPort = 22
}
if b.config.VBoxManage == nil {
b.config.VBoxManage = make([][]string, 0)
}
if b.config.VBoxVersionFile == "" {
b.config.VBoxVersionFile = ".vbox_version"
}
if b.config.VMName == "" {
b.config.VMName = fmt.Sprintf("packer-%s", b.config.PackerBuildName)
}
if b.config.HTTPPortMin > b.config.HTTPPortMax {
errs = packer.MultiErrorAppend(
errs, errors.New("http_port_min must be less than http_port_max"))
}
if b.config.ISOChecksum == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("Due to large file sizes, an iso_checksum is required"))
} else {
b.config.ISOChecksum = strings.ToLower(b.config.ISOChecksum)
}
if b.config.ISOChecksumType == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("The iso_checksum_type must be specified."))
} else {
b.config.ISOChecksumType = strings.ToLower(b.config.ISOChecksumType)
if h := common.HashForType(b.config.ISOChecksumType); h == nil {
errs = packer.MultiErrorAppend(
errs,
fmt.Errorf("Unsupported checksum type: %s", b.config.ISOChecksumType))
}
}
if b.config.ISOUrl == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("An iso_url must be specified."))
} else {
url, err := url.Parse(b.config.ISOUrl)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("iso_url is not a valid URL: %s", err))
} else {
if url.Scheme == "" {
url.Scheme = "file"
}
if url.Scheme == "file" {
if _, err := os.Stat(url.Path); err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("iso_url points to bad file: %s", err))
}
} else {
supportedSchemes := []string{"file", "http", "https"}
scheme := strings.ToLower(url.Scheme)
found := false
for _, supported := range supportedSchemes {
if scheme == supported {
found = true
break
}
}
if !found {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Unsupported URL scheme in iso_url: %s", scheme))
}
}
}
if errs == nil || len(errs.Errors) == 0 {
// Put the URL back together since we may have modified it
b.config.ISOUrl = url.String()
}
}
if b.config.GuestAdditionsSHA256 != "" {
b.config.GuestAdditionsSHA256 = strings.ToLower(b.config.GuestAdditionsSHA256)
}
if b.config.GuestAdditionsURL != "" {
url, err := url.Parse(b.config.GuestAdditionsURL)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("guest_additions_url is not a valid URL: %s", err))
} else {
if url.Scheme == "" {
url.Scheme = "file"
}
if url.Scheme == "file" {
if _, err := os.Stat(url.Path); err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("guest_additions_url points to bad file: %s", err))
}
} else {
supportedSchemes := []string{"file", "http", "https"}
scheme := strings.ToLower(url.Scheme)
found := false
for _, supported := range supportedSchemes {
if scheme == supported {
found = true
break
}
}
if !found {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Unsupported URL scheme in guest_additions_url: %s", scheme))
}
}
}
if errs == nil || len(errs.Errors) == 0 {
// Put the URL back together since we may have modified it
b.config.GuestAdditionsURL = url.String()
}
}
if !b.config.PackerForce {
if _, err := os.Stat(b.config.OutputDir); err == nil {
errs = packer.MultiErrorAppend(
errs,
fmt.Errorf("Output directory '%s' already exists. It must not exist.", b.config.OutputDir))
}
}
b.config.bootWait, err = time.ParseDuration(b.config.RawBootWait)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Failed parsing boot_wait: %s", err))
}
if b.config.RawShutdownTimeout == "" {
b.config.RawShutdownTimeout = "5m"
}
if b.config.RawSSHWaitTimeout == "" {
b.config.RawSSHWaitTimeout = "20m"
}
b.config.shutdownTimeout, err = time.ParseDuration(b.config.RawShutdownTimeout)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Failed parsing shutdown_timeout: %s", err))
}
if b.config.SSHHostPortMin > b.config.SSHHostPortMax {
errs = packer.MultiErrorAppend(
errs, errors.New("ssh_host_port_min must be less than ssh_host_port_max"))
}
if b.config.SSHUser == "" {
errs = packer.MultiErrorAppend(
errs, errors.New("An ssh_username must be specified."))
}
b.config.sshWaitTimeout, err = time.ParseDuration(b.config.RawSSHWaitTimeout)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Failed parsing ssh_wait_timeout: %s", err))
}
b.driver, err = b.newDriver()
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Failed creating VirtualBox driver: %s", err))
}
if errs != nil && len(errs.Errors) > 0 {
return errs
}
return nil
}