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