packer-cn/builder/hyperv/vmcx/builder.go

395 lines
14 KiB
Go

//go:generate struct-markdown
//go:generate mapstructure-to-hcl2 -type Config
package vmcx
import (
"context"
"errors"
"fmt"
"os"
"strings"
"github.com/hashicorp/hcl/v2/hcldec"
hypervcommon "github.com/hashicorp/packer/builder/hyperv/common"
"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/common/bootcommand"
powershell "github.com/hashicorp/packer/common/powershell"
"github.com/hashicorp/packer/common/shutdowncommand"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/helper/config"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/template/interpolate"
)
const (
DefaultRamSize = 1 * 1024 // 1GB
MinRamSize = 32 // 32MB
MaxRamSize = 1024 * 1024 // 1TB
MinNestedVirtualizationRamSize = 4 * 1024 // 4GB
LowRam = 256 // 256MB
DefaultUsername = ""
DefaultPassword = ""
)
// Builder implements packer.Builder and builds the actual Hyperv
// images.
type Builder struct {
config Config
runner multistep.Runner
}
type Config struct {
common.PackerConfig `mapstructure:",squash"`
common.HTTPConfig `mapstructure:",squash"`
common.ISOConfig `mapstructure:",squash"`
bootcommand.BootConfig `mapstructure:",squash"`
hypervcommon.OutputConfig `mapstructure:",squash"`
hypervcommon.SSHConfig `mapstructure:",squash"`
hypervcommon.CommonConfig `mapstructure:",squash"`
shutdowncommand.ShutdownConfig `mapstructure:",squash"`
// This is the path to a directory containing an exported virtual machine.
CloneFromVMCXPath string `mapstructure:"clone_from_vmcx_path"`
// This is the name of the virtual machine to clone from.
CloneFromVMName string `mapstructure:"clone_from_vm_name"`
// The name of a snapshot in the
// source machine to use as a starting point for the clone. If the value
// given is an empty string, the last snapshot present in the source will
// be chosen as the starting point for the new VM.
CloneFromSnapshotName string `mapstructure:"clone_from_snapshot_name" required:"false"`
// If set to true all snapshots
// present in the source machine will be copied when the machine is
// cloned. The final result of the build will be an exported virtual
// machine that contains all the snapshots of the parent.
CloneAllSnapshots bool `mapstructure:"clone_all_snapshots" required:"false"`
// If true enables differencing disks. Only
// the changes will be written to the new disk. This is especially useful if
// your source is a VHD/VHDX. This defaults to false.
DifferencingDisk bool `mapstructure:"differencing_disk" required:"false"`
// When cloning a vm to build from, we run a powershell
// Compare-VM command, which, depending on your version of Windows, may need
// the "Copy" flag to be set to true or false. Defaults to "false". Command:
CompareCopy bool `mapstructure:"copy_in_compare" required:"false"`
ctx interpolate.Context
}
func (b *Builder) ConfigSpec() hcldec.ObjectSpec { return b.config.FlatMapstructure().HCL2Spec() }
func (b *Builder) Prepare(raws ...interface{}) ([]string, []string, error) {
err := config.Decode(&b.config, &config.DecodeOpts{
Interpolate: true,
InterpolateContext: &b.config.ctx,
InterpolateFilter: &interpolate.RenderFilter{
Exclude: []string{
"boot_command",
},
},
}, raws...)
if err != nil {
return nil, nil, err
}
// Accumulate any errors and warnings
var errs *packer.MultiError
warnings := make([]string, 0)
if b.config.RawSingleISOUrl != "" || len(b.config.ISOUrls) > 0 {
isoWarnings, isoErrs := b.config.ISOConfig.Prepare(&b.config.ctx)
warnings = append(warnings, isoWarnings...)
errs = packer.MultiErrorAppend(errs, isoErrs...)
}
errs = packer.MultiErrorAppend(errs, b.config.BootConfig.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.HTTPConfig.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.OutputConfig.Prepare(&b.config.ctx, &b.config.PackerConfig)...)
errs = packer.MultiErrorAppend(errs, b.config.SSHConfig.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.ShutdownConfig.Prepare(&b.config.ctx)...)
commonErrs, commonWarns := b.config.CommonConfig.Prepare(&b.config.ctx, &b.config.PackerConfig)
packer.MultiErrorAppend(errs, commonErrs...)
warnings = append(warnings, commonWarns...)
if b.config.Cpu < 1 {
b.config.Cpu = 1
}
if b.config.CloneFromVMName == "" {
if b.config.CloneFromVMCXPath == "" {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("The clone_from_vm_name must be specified if "+
"clone_from_vmcx_path is not specified."))
}
} else {
virtualMachineExists, err := powershell.DoesVirtualMachineExist(b.config.CloneFromVMName)
if err != nil {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("Failed detecting if virtual machine to clone "+
"from exists: %s", err))
} else {
if !virtualMachineExists {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("Virtual machine '%s' to clone from does not "+
"exist.", b.config.CloneFromVMName))
} else {
b.config.Generation, err = powershell.GetVirtualMachineGeneration(b.config.CloneFromVMName)
if err != nil {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("Failed detecting virtual machine to clone "+
"from generation: %s", err))
}
if b.config.CloneFromSnapshotName != "" {
virtualMachineSnapshotExists, err := powershell.DoesVirtualMachineSnapshotExist(
b.config.CloneFromVMName, b.config.CloneFromSnapshotName)
if err != nil {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("Failed detecting if virtual machine "+
"snapshot to clone from exists: %s", err))
} else {
if !virtualMachineSnapshotExists {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("Virtual machine snapshot '%s' on "+
"virtual machine '%s' to clone from does not exist.",
b.config.CloneFromSnapshotName, b.config.CloneFromVMName))
}
}
}
virtualMachineOn, err := powershell.IsVirtualMachineOn(b.config.CloneFromVMName)
if err != nil {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("Failed detecting if virtual machine to "+
"clone is running: %s", err))
} else {
if virtualMachineOn {
warning := fmt.Sprintf("Cloning from a virtual machine that is running.")
warnings = hypervcommon.Appendwarns(warnings, warning)
}
}
}
}
}
if b.config.CloneFromVMCXPath == "" {
if b.config.CloneFromVMName == "" {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("The clone_from_vmcx_path be specified if "+
"clone_from_vm_name must is not specified."))
}
} else {
if _, err := os.Stat(b.config.CloneFromVMCXPath); os.IsNotExist(err) {
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("CloneFromVMCXPath does not exist: %s", err))
}
}
if strings.HasSuffix(strings.ToLower(b.config.CloneFromVMCXPath), ".vmcx") {
// User has provided the vmcx file itself rather than the containing
// folder.
if strings.Contains(b.config.CloneFromVMCXPath, "Virtual Machines") {
keep := strings.Split(b.config.CloneFromVMCXPath, "Virtual Machines")
b.config.CloneFromVMCXPath = keep[0]
} else {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("Unable to "+
"parse the clone_from_vmcx_path to find the vm directory. "+
"Please provide the path to the folder containing the "+
"vmcx file, not the file itself. Example: instead of "+
"C:\\path\\to\\output-hyperv-iso\\Virtual Machines\\filename.vmcx"+
", provide C:\\path\\to\\output-hyperv-iso\\."))
}
}
}
// Warnings
if b.config.ShutdownCommand == "" {
warnings = hypervcommon.Appendwarns(warnings,
"A shutdown_command was not specified. Without a shutdown command, Packer\n"+
"will forcibly halt the virtual machine, which may result in data loss.")
}
if errs != nil && len(errs.Errors) > 0 {
return nil, warnings, errs
}
return nil, warnings, nil
}
// Run executes a Packer build and returns a packer.Artifact representing
// a Hyperv appliance.
func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (packer.Artifact, error) {
// Create the driver that we'll use to communicate with Hyperv
driver, err := hypervcommon.NewHypervPS4Driver()
if err != nil {
return nil, fmt.Errorf("Failed creating Hyper-V driver: %s", err)
}
// Set up the state.
state := new(multistep.BasicStateBag)
state.Put("debug", b.config.PackerDebug)
state.Put("driver", driver)
state.Put("hook", hook)
state.Put("ui", ui)
steps := []multistep.Step{
&hypervcommon.StepCreateBuildDir{
TempPath: b.config.TempPath,
},
&common.StepOutputDir{
Force: b.config.PackerForce,
Path: b.config.OutputDir,
},
&common.StepDownload{
Checksum: b.config.ISOChecksum,
ChecksumType: b.config.ISOChecksumType,
Description: "ISO",
ResultKey: "iso_path",
Url: b.config.ISOUrls,
Extension: b.config.TargetExtension,
TargetPath: b.config.TargetPath,
},
&common.StepCreateFloppy{
Files: b.config.FloppyFiles,
Directories: b.config.FloppyConfig.FloppyDirectories,
Label: b.config.FloppyConfig.FloppyLabel,
},
&common.StepHTTPServer{
HTTPDir: b.config.HTTPDir,
HTTPPortMin: b.config.HTTPPortMin,
HTTPPortMax: b.config.HTTPPortMax,
},
&hypervcommon.StepCreateSwitch{
SwitchName: b.config.SwitchName,
},
&hypervcommon.StepCloneVM{
CloneFromVMCXPath: b.config.CloneFromVMCXPath,
CloneFromVMName: b.config.CloneFromVMName,
CloneFromSnapshotName: b.config.CloneFromSnapshotName,
CloneAllSnapshots: b.config.CloneAllSnapshots,
VMName: b.config.VMName,
SwitchName: b.config.SwitchName,
CompareCopy: b.config.CompareCopy,
RamSize: b.config.RamSize,
Cpu: b.config.Cpu,
EnableMacSpoofing: b.config.EnableMacSpoofing,
EnableDynamicMemory: b.config.EnableDynamicMemory,
EnableSecureBoot: b.config.EnableSecureBoot,
SecureBootTemplate: b.config.SecureBootTemplate,
EnableVirtualizationExtensions: b.config.EnableVirtualizationExtensions,
MacAddress: b.config.MacAddress,
KeepRegistered: b.config.KeepRegistered,
AdditionalDiskSize: b.config.AdditionalDiskSize,
DiskBlockSize: b.config.DiskBlockSize,
},
&hypervcommon.StepEnableIntegrationService{},
&hypervcommon.StepMountDvdDrive{
Generation: b.config.Generation,
FirstBootDevice: b.config.FirstBootDevice,
},
&hypervcommon.StepMountFloppydrive{
Generation: b.config.Generation,
},
&hypervcommon.StepMountGuestAdditions{
GuestAdditionsMode: b.config.GuestAdditionsMode,
GuestAdditionsPath: b.config.GuestAdditionsPath,
Generation: b.config.Generation,
},
&hypervcommon.StepMountSecondaryDvdImages{
IsoPaths: b.config.SecondaryDvdImages,
Generation: b.config.Generation,
},
&hypervcommon.StepConfigureVlan{
VlanId: b.config.VlanId,
SwitchVlanId: b.config.SwitchVlanId,
},
&hypervcommon.StepSetFirstBootDevice{
Generation: b.config.Generation,
FirstBootDevice: b.config.FirstBootDevice,
},
&hypervcommon.StepRun{
Headless: b.config.Headless,
SwitchName: b.config.SwitchName,
},
&hypervcommon.StepTypeBootCommand{
BootCommand: b.config.FlatBootCommand(),
BootWait: b.config.BootWait,
SwitchName: b.config.SwitchName,
Ctx: b.config.ctx,
GroupInterval: b.config.BootConfig.BootGroupInterval,
},
// configure the communicator ssh, winrm
&communicator.StepConnect{
Config: &b.config.SSHConfig.Comm,
Host: hypervcommon.CommHost(b.config.SSHConfig.Comm.SSHHost),
SSHConfig: b.config.SSHConfig.Comm.SSHConfigFunc(),
},
// provision requires communicator to be setup
&common.StepProvision{},
// Remove ephemeral SSH keys, if using
&common.StepCleanupTempKeys{
Comm: &b.config.SSHConfig.Comm,
},
&hypervcommon.StepShutdown{
Command: b.config.ShutdownCommand,
Timeout: b.config.ShutdownTimeout,
},
// wait for the vm to be powered off
&hypervcommon.StepWaitForPowerOff{},
// remove the secondary dvd images
// after we power down
&hypervcommon.StepUnmountSecondaryDvdImages{},
&hypervcommon.StepUnmountGuestAdditions{},
&hypervcommon.StepUnmountDvdDrive{},
&hypervcommon.StepUnmountFloppyDrive{
Generation: b.config.Generation,
},
&hypervcommon.StepCompactDisk{
SkipCompaction: b.config.SkipCompaction,
},
&hypervcommon.StepExportVm{
OutputDir: b.config.OutputDir,
SkipExport: b.config.SkipExport,
},
&hypervcommon.StepCollateArtifacts{
OutputDir: b.config.OutputDir,
SkipExport: b.config.SkipExport,
},
}
// the clean up actions for each step will be executed reverse order
// Run the steps.
b.runner = common.NewRunner(steps, b.config.PackerConfig, ui)
b.runner.Run(ctx, state)
// Report any errors.
if rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
// If we were interrupted or cancelled, then just exit.
if _, ok := state.GetOk(multistep.StateCancelled); ok {
return nil, errors.New("Build was cancelled.")
}
if _, ok := state.GetOk(multistep.StateHalted); ok {
return nil, errors.New("Build was halted.")
}
generatedData := map[string]interface{}{"generated_data": state.Get("generated_data")}
return hypervcommon.NewArtifact(b.config.OutputDir, generatedData)
}
// Cancel.