327 lines
8.5 KiB
Go
327 lines
8.5 KiB
Go
package iso
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import (
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"context"
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"errors"
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"fmt"
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"path"
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"strings"
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"time"
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"github.com/hashicorp/hcl/v2/hcldec"
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"github.com/hashicorp/packer-plugin-sdk/communicator"
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"github.com/hashicorp/packer-plugin-sdk/multistep"
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commonsteps "github.com/hashicorp/packer-plugin-sdk/multistep/commonsteps"
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"github.com/hashicorp/packer-plugin-sdk/packer"
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hconfig "github.com/hashicorp/packer-plugin-sdk/template/config"
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"github.com/hashicorp/packer-plugin-sdk/template/interpolate"
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xsclient "github.com/terra-farm/go-xen-api-client"
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xscommon "github.com/xenserver/packer-builder-xenserver/builder/xenserver/common"
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)
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type Builder struct {
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config xscommon.Config
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runner multistep.Runner
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}
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func (self *Builder) ConfigSpec() hcldec.ObjectSpec { return self.config.FlatMapstructure().HCL2Spec() }
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func (self *Builder) Prepare(raws ...interface{}) (params []string, warns []string, retErr error) {
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var errs *packer.MultiError
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err := hconfig.Decode(&self.config, &hconfig.DecodeOpts{
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Interpolate: true,
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InterpolateFilter: &interpolate.RenderFilter{
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Exclude: []string{
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"boot_command",
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},
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},
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}, raws...)
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if err != nil {
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packer.MultiErrorAppend(errs, err)
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}
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errs = packer.MultiErrorAppend(
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errs, self.config.CommonConfig.Prepare(self.config.GetInterpContext(), &self.config.PackerConfig)...)
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errs = packer.MultiErrorAppend(errs, self.config.SSHConfig.Prepare(self.config.GetInterpContext())...)
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// Set default values
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if self.config.RawInstallTimeout == "" {
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self.config.RawInstallTimeout = "200m"
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}
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if self.config.DiskSize == 0 {
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self.config.DiskSize = 40000
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}
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if self.config.VCPUsMax == 0 {
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self.config.VCPUsMax = 1
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}
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if self.config.VCPUsAtStartup == 0 {
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self.config.VCPUsAtStartup = 1
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}
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if self.config.VCPUsAtStartup > self.config.VCPUsMax {
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self.config.VCPUsAtStartup = self.config.VCPUsMax
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}
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if self.config.VMMemory == 0 {
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self.config.VMMemory = 1024
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}
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if self.config.CloneTemplate == "" {
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self.config.CloneTemplate = "Other install media"
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}
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if self.config.Firmware == "" {
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self.config.Firmware = "bios"
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}
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if len(self.config.PlatformArgs) == 0 {
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pargs := make(map[string]string)
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pargs["viridian"] = "false"
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pargs["nx"] = "true"
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pargs["pae"] = "true"
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pargs["apic"] = "true"
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pargs["timeoffset"] = "0"
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pargs["acpi"] = "1"
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self.config.PlatformArgs = pargs
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}
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// Template substitution
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templates := map[string]*string{
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"clone_template": &self.config.CloneTemplate,
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"iso_checksum": &self.config.ISOChecksum,
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"iso_checksum_type": &self.config.ISOChecksumType,
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"iso_url": &self.config.ISOUrl,
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"iso_name": &self.config.ISOName,
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"install_timeout": &self.config.RawInstallTimeout,
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}
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for i := range self.config.ISOUrls {
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templates[fmt.Sprintf("iso_urls[%d]", i)] = &self.config.ISOUrls[i]
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}
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// Validation
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self.config.InstallTimeout, err = time.ParseDuration(self.config.RawInstallTimeout)
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if err != nil {
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errs = packer.MultiErrorAppend(
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errs, fmt.Errorf("Failed to parse install_timeout: %s", err))
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}
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if self.config.ISOName == "" {
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// If ISO name is not specified, assume a URL and checksum has been provided.
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if self.config.ISOChecksumType == "" {
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errs = packer.MultiErrorAppend(
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errs, errors.New("The iso_checksum_type must be specified."))
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} else {
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self.config.ISOChecksumType = strings.ToLower(self.config.ISOChecksumType)
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if self.config.ISOChecksumType != "none" {
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if self.config.ISOChecksum == "" {
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errs = packer.MultiErrorAppend(
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errs, errors.New("Due to the file size being large, an iso_checksum is required."))
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} else {
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self.config.ISOChecksum = strings.ToLower(self.config.ISOChecksum)
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}
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}
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}
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if len(self.config.ISOUrls) == 0 {
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if self.config.ISOUrl == "" {
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errs = packer.MultiErrorAppend(
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errs, errors.New("One of iso_url or iso_urls must be specified."))
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} else {
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self.config.ISOUrls = []string{self.config.ISOUrl}
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}
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} else if self.config.ISOUrl != "" {
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errs = packer.MultiErrorAppend(
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errs, errors.New("Only one of iso_url or iso_urls may be specified."))
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}
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} else {
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// An ISO name has been provided. It should be attached from an available SR.
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}
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if len(errs.Errors) > 0 {
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retErr = errors.New(errs.Error())
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}
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return nil, nil, retErr
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}
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func (self *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (packer.Artifact, error) {
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c, err := xscommon.NewXenAPIClient(self.config.HostIp, self.config.Username, self.config.Password)
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if err != nil {
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return nil, err
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}
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ui.Say("XAPI client session established")
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c.GetClient().Host.GetAll(c.GetSessionRef())
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//Share state between the other steps using a statebag
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state := new(multistep.BasicStateBag)
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state.Put("client", c)
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state.Put("config", self.config)
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state.Put("commonconfig", self.config.CommonConfig)
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state.Put("hook", hook)
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state.Put("ui", ui)
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httpReqChan := make(chan string, 1)
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//Build the steps
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download_steps := []multistep.Step{
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&commonsteps.StepDownload{
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Checksum: self.config.ISOChecksum,
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Description: "ISO",
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ResultKey: "iso_path",
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Url: self.config.ISOUrls,
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},
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}
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steps := []multistep.Step{
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&xscommon.StepPrepareOutputDir{
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Force: self.config.PackerForce,
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Path: self.config.OutputDir,
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},
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&commonsteps.StepCreateFloppy{
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Files: self.config.FloppyFiles,
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Label: "cidata",
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},
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&xscommon.StepHTTPServer{
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Chan: httpReqChan,
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},
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&xscommon.StepUploadVdi{
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VdiNameFunc: func() string {
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return "Packer-floppy-disk"
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},
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ImagePathFunc: func() string {
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if floppyPath, ok := state.GetOk("floppy_path"); ok {
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return floppyPath.(string)
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}
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return ""
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},
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VdiUuidKey: "floppy_vdi_uuid",
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},
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&xscommon.StepFindOrUploadVdi{
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xscommon.StepUploadVdi{
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VdiNameFunc: func() string {
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if len(self.config.ISOUrls) > 0 {
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return path.Base(self.config.ISOUrls[0])
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}
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return ""
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},
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ImagePathFunc: func() string {
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if isoPath, ok := state.GetOk("iso_path"); ok {
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return isoPath.(string)
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}
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return ""
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},
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VdiUuidKey: "iso_vdi_uuid",
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},
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},
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&xscommon.StepFindVdi{
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VdiName: self.config.ToolsIsoName,
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VdiUuidKey: "tools_vdi_uuid",
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},
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&xscommon.StepFindVdi{
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VdiName: self.config.ISOName,
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VdiUuidKey: "isoname_vdi_uuid",
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},
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new(stepCreateInstance),
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&xscommon.StepAttachVdi{
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VdiUuidKey: "floppy_vdi_uuid",
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VdiType: xsclient.VbdTypeFloppy,
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},
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&xscommon.StepAttachVdi{
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VdiUuidKey: "iso_vdi_uuid",
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VdiType: xsclient.VbdTypeCD,
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},
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&xscommon.StepAttachVdi{
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VdiUuidKey: "isoname_vdi_uuid",
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VdiType: xsclient.VbdTypeCD,
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},
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&xscommon.StepAttachVdi{
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VdiUuidKey: "tools_vdi_uuid",
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VdiType: xsclient.VbdTypeCD,
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},
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new(xscommon.StepStartVmPaused),
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new(xscommon.StepSetVmHostSshAddress),
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// &xscommon.StepForwardPortOverSSH{
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// RemotePort: xscommon.InstanceVNCPort,
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// RemoteDest: xscommon.InstanceVNCIP,
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// HostPortMin: self.config.HostPortMin,
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// HostPortMax: self.config.HostPortMax,
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// ResultKey: "local_vnc_port",
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// },
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new(xscommon.StepBootWait),
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&xscommon.StepTypeBootCommand{
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Ctx: *self.config.GetInterpContext(),
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},
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&xscommon.StepWaitForIP{
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Chan: httpReqChan,
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Timeout: self.config.InstallTimeout, // @todo change this
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},
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&xscommon.StepForwardPortOverSSH{
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RemotePort: xscommon.InstanceSSHPort,
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RemoteDest: xscommon.InstanceSSHIP,
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HostPortMin: self.config.HostPortMin,
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HostPortMax: self.config.HostPortMax,
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ResultKey: "local_ssh_port",
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},
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&communicator.StepConnect{
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Config: &self.config.SSHConfig.Comm,
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Host: xscommon.InstanceSSHIP,
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SSHConfig: self.config.Comm.SSHConfigFunc(),
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SSHPort: xscommon.InstanceSSHPort,
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},
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new(commonsteps.StepProvision),
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new(xscommon.StepShutdown),
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new(xscommon.StepSetVmToTemplate),
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&xscommon.StepDetachVdi{
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VdiUuidKey: "iso_vdi_uuid",
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},
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&xscommon.StepDetachVdi{
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VdiUuidKey: "isoname_vdi_uuid",
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},
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&xscommon.StepDetachVdi{
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VdiUuidKey: "tools_vdi_uuid",
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},
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&xscommon.StepDetachVdi{
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VdiUuidKey: "floppy_vdi_uuid",
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},
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new(xscommon.StepExport),
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}
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if self.config.ISOName == "" {
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steps = append(download_steps, steps...)
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}
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self.runner = &multistep.BasicRunner{Steps: steps}
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self.runner.Run(ctx, state)
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if rawErr, ok := state.GetOk("error"); ok {
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return nil, rawErr.(error)
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}
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// If we were interrupted or cancelled, then just exit.
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if _, ok := state.GetOk(multistep.StateCancelled); ok {
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return nil, errors.New("Build was cancelled.")
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}
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if _, ok := state.GetOk(multistep.StateHalted); ok {
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return nil, errors.New("Build was halted.")
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}
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artifact, _ := xscommon.NewArtifact(self.config.OutputDir)
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return artifact, nil
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}
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