399 lines
14 KiB
Go
399 lines
14 KiB
Go
//go:generate struct-markdown
|
|
|
|
package common
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/hashicorp/packer/common"
|
|
powershell "github.com/hashicorp/packer/common/powershell"
|
|
"github.com/hashicorp/packer/common/powershell/hyperv"
|
|
"github.com/hashicorp/packer/template/interpolate"
|
|
)
|
|
|
|
const (
|
|
DefaultDiskSize = 40 * 1024 // ~40GB
|
|
MinDiskSize = 256 // 256MB
|
|
MaxDiskSize = 64 * 1024 * 1024 // 64TB
|
|
MaxVHDSize = 2040 * 1024 // 2040GB
|
|
|
|
DefaultDiskBlockSize = 32 // 32MB
|
|
MinDiskBlockSize = 1 // 1MB
|
|
MaxDiskBlockSize = 256 // 256MB
|
|
|
|
DefaultRamSize = 1 * 1024 // 1GB
|
|
MinRamSize = 32 // 32MB
|
|
MaxRamSize = 32 * 1024 // 32GB
|
|
MinNestedVirtualizationRamSize = 4 * 1024 // 4GB
|
|
|
|
LowRam = 256 // 256MB
|
|
|
|
DefaultUsername = ""
|
|
DefaultPassword = ""
|
|
)
|
|
|
|
type CommonConfig struct {
|
|
common.FloppyConfig `mapstructure:",squash"`
|
|
// The block size of the VHD to be created.
|
|
// Recommended disk block size for Linux hyper-v guests is 1 MiB. This
|
|
// defaults to "32" MiB.
|
|
DiskBlockSize uint `mapstructure:"disk_block_size" required:"false"`
|
|
// The amount, in megabytes, of RAM to assign to the
|
|
// VM. By default, this is 1 GB.
|
|
RamSize uint `mapstructure:"memory" required:"false"`
|
|
// A list of ISO paths to
|
|
// attach to a VM when it is booted. This is most useful for unattended
|
|
// Windows installs, which look for an Autounattend.xml file on removable
|
|
// media. By default, no secondary ISO will be attached.
|
|
SecondaryDvdImages []string `mapstructure:"secondary_iso_images" required:"false"`
|
|
// The size or sizes of any
|
|
// additional hard disks for the VM in megabytes. If this is not specified
|
|
// then the VM will only contain a primary hard disk. Additional drives
|
|
// will be attached to the SCSI interface only. The builder uses
|
|
// expandable rather than fixed-size virtual hard disks, so the actual
|
|
// file representing the disk will not use the full size unless it is
|
|
// full.
|
|
AdditionalDiskSize []uint `mapstructure:"disk_additional_size" required:"false"`
|
|
// If set to attach then attach and
|
|
// mount the ISO image specified in guest_additions_path. If set to
|
|
// none then guest additions are not attached and mounted; This is the
|
|
// default.
|
|
GuestAdditionsMode string `mapstructure:"guest_additions_mode" required:"false"`
|
|
// The path to the ISO image for guest
|
|
// additions.
|
|
GuestAdditionsPath string `mapstructure:"guest_additions_path" required:"false"`
|
|
// This is the name of the new virtual machine,
|
|
// without the file extension. By default this is "packer-BUILDNAME",
|
|
// where "BUILDNAME" is the name of the build.
|
|
VMName string `mapstructure:"vm_name" required:"false"`
|
|
// The name of the switch to connect the virtual
|
|
// machine to. By default, leaving this value unset will cause Packer to
|
|
// try and determine the switch to use by looking for an external switch
|
|
// that is up and running.
|
|
SwitchName string `mapstructure:"switch_name" required:"false"`
|
|
// This is the VLAN of the virtual switch's
|
|
// network card. By default none is set. If none is set then a VLAN is not
|
|
// set on the switch's network card. If this value is set it should match
|
|
// the VLAN specified in by vlan_id.
|
|
SwitchVlanId string `mapstructure:"switch_vlan_id" required:"false"`
|
|
// This allows a specific MAC address to be used on
|
|
// the default virtual network card. The MAC address must be a string with
|
|
// no delimiters, for example "0000deadbeef".
|
|
MacAddress string `mapstructure:"mac_address" required:"false"`
|
|
// This is the VLAN of the virtual machine's network
|
|
// card for the new virtual machine. By default none is set. If none is set
|
|
// then VLANs are not set on the virtual machine's network card.
|
|
VlanId string `mapstructure:"vlan_id" required:"false"`
|
|
// The number of CPUs the virtual machine should use. If
|
|
// this isn't specified, the default is 1 CPU.
|
|
Cpu uint `mapstructure:"cpus" required:"false"`
|
|
// The Hyper-V generation for the virtual machine. By
|
|
// default, this is 1. Generation 2 Hyper-V virtual machines do not support
|
|
// floppy drives. In this scenario use secondary_iso_images instead. Hard
|
|
// drives and DVD drives will also be SCSI and not IDE.
|
|
Generation uint `mapstructure:"generation" required:"false"`
|
|
// If true enable MAC address spoofing
|
|
// for the virtual machine. This defaults to false.
|
|
EnableMacSpoofing bool `mapstructure:"enable_mac_spoofing" required:"false"`
|
|
// If true enable dynamic memory for
|
|
// the virtual machine. This defaults to false.
|
|
EnableDynamicMemory bool `mapstructure:"enable_dynamic_memory" required:"false"`
|
|
// If true enable secure boot for the
|
|
// virtual machine. This defaults to false. See secure_boot_template
|
|
// below for additional settings.
|
|
EnableSecureBoot bool `mapstructure:"enable_secure_boot" required:"false"`
|
|
// The secure boot template to be
|
|
// configured. Valid values are "MicrosoftWindows" (Windows) or
|
|
// "MicrosoftUEFICertificateAuthority" (Linux). This only takes effect if
|
|
// enable_secure_boot is set to "true". This defaults to "MicrosoftWindows".
|
|
SecureBootTemplate string `mapstructure:"secure_boot_template" required:"false"`
|
|
// If true enable
|
|
// virtualization extensions for the virtual machine. This defaults to
|
|
// false. For nested virtualization you need to enable MAC spoofing,
|
|
// disable dynamic memory and have at least 4GB of RAM assigned to the
|
|
// virtual machine.
|
|
EnableVirtualizationExtensions bool `mapstructure:"enable_virtualization_extensions" required:"false"`
|
|
// The location under which Packer will create a directory to house all the
|
|
// VM files and folders during the build. By default `%TEMP%` is used
|
|
// which, for most systems, will evaluate to
|
|
// `%USERPROFILE%/AppData/Local/Temp`.
|
|
//
|
|
// The build directory housed under `temp_path` will have a name similar to
|
|
// `packerhv1234567`. The seven digit number at the end of the name is
|
|
// automatically generated by Packer to ensure the directory name is
|
|
// unique.
|
|
TempPath string `mapstructure:"temp_path" required:"false"`
|
|
// This allows you to set the vm version when calling New-VM to generate
|
|
// the vm.
|
|
Version string `mapstructure:"configuration_version" required:"false"`
|
|
// If "true", Packer will not delete the VM from
|
|
// The Hyper-V manager.
|
|
KeepRegistered bool `mapstructure:"keep_registered" required:"false"`
|
|
|
|
Communicator string `mapstructure:"communicator"`
|
|
// If true skip compacting the hard disk for
|
|
// the virtual machine when exporting. This defaults to false.
|
|
SkipCompaction bool `mapstructure:"skip_compaction" required:"false"`
|
|
// If true Packer will skip the export of the VM.
|
|
// If you are interested only in the VHD/VHDX files, you can enable this
|
|
// option. The resulting VHD/VHDX file will be output to
|
|
// <output_directory>/Virtual Hard Disks. By default this option is false
|
|
// and Packer will export the VM to output_directory.
|
|
SkipExport bool `mapstructure:"skip_export" required:"false"`
|
|
// Packer defaults to building Hyper-V virtual
|
|
// machines by launching a GUI that shows the console of the machine being
|
|
// built. When this value is set to true, the machine will start without a
|
|
// console.
|
|
Headless bool `mapstructure:"headless" required:"false"`
|
|
}
|
|
|
|
func (c *CommonConfig) Prepare(ctx *interpolate.Context, pc *common.PackerConfig) ([]error, []string) {
|
|
// Accumulate any errors and warns
|
|
var errs []error
|
|
var warns []string
|
|
|
|
if c.VMName == "" {
|
|
c.VMName = fmt.Sprintf("packer-%s", pc.PackerBuildName)
|
|
log.Println(fmt.Sprintf("%s: %v", "VMName", c.VMName))
|
|
}
|
|
|
|
if c.SwitchName == "" {
|
|
c.SwitchName = c.detectSwitchName(pc.PackerBuildName)
|
|
log.Println(fmt.Sprintf("Using switch %s", c.SwitchName))
|
|
}
|
|
|
|
if c.Generation < 1 || c.Generation > 2 {
|
|
c.Generation = 1
|
|
}
|
|
|
|
if c.Generation == 2 {
|
|
if len(c.FloppyFiles) > 0 || len(c.FloppyDirectories) > 0 {
|
|
err := fmt.Errorf("Generation 2 vms don't support floppy drives. Use ISO image instead.")
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
|
|
if len(c.AdditionalDiskSize) > 64 {
|
|
errs = append(errs, fmt.Errorf("VM's currently support a maximum of 64 additional SCSI attached disks."))
|
|
}
|
|
|
|
// Errors
|
|
floppyerrs := c.FloppyConfig.Prepare(ctx)
|
|
errs = append(errs, floppyerrs...)
|
|
if c.GuestAdditionsMode == "" {
|
|
if c.GuestAdditionsPath != "" {
|
|
c.GuestAdditionsMode = "attach"
|
|
} else {
|
|
c.GuestAdditionsPath = os.Getenv("WINDIR") + "\\system32\\vmguest.iso"
|
|
|
|
if _, err := os.Stat(c.GuestAdditionsPath); os.IsNotExist(err) {
|
|
if err != nil {
|
|
c.GuestAdditionsPath = ""
|
|
c.GuestAdditionsMode = "none"
|
|
} else {
|
|
c.GuestAdditionsMode = "attach"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if c.GuestAdditionsPath == "" && c.GuestAdditionsMode == "attach" {
|
|
c.GuestAdditionsPath = os.Getenv("WINDIR") + "\\system32\\vmguest.iso"
|
|
|
|
if _, err := os.Stat(c.GuestAdditionsPath); os.IsNotExist(err) {
|
|
if err != nil {
|
|
c.GuestAdditionsPath = ""
|
|
}
|
|
}
|
|
}
|
|
|
|
for _, isoPath := range c.SecondaryDvdImages {
|
|
if _, err := os.Stat(isoPath); os.IsNotExist(err) {
|
|
if err != nil {
|
|
errs = append(
|
|
errs, fmt.Errorf("Secondary Dvd image does not exist: %s", err))
|
|
}
|
|
}
|
|
}
|
|
|
|
numberOfIsos := len(c.SecondaryDvdImages)
|
|
|
|
if c.GuestAdditionsMode == "attach" {
|
|
if _, err := os.Stat(c.GuestAdditionsPath); os.IsNotExist(err) {
|
|
if err != nil {
|
|
errs = append(
|
|
errs, fmt.Errorf("Guest additions iso does not exist: %s", err))
|
|
}
|
|
}
|
|
|
|
numberOfIsos = numberOfIsos + 1
|
|
}
|
|
|
|
if c.Generation < 2 && numberOfIsos > 2 {
|
|
if c.GuestAdditionsMode == "attach" {
|
|
errs = append(errs, fmt.Errorf("There are only 2 ide controllers available, so "+
|
|
"we can't support guest additions and these secondary dvds: %s",
|
|
strings.Join(c.SecondaryDvdImages, ", ")))
|
|
} else {
|
|
errs = append(errs, fmt.Errorf("There are only 2 ide controllers available, so "+
|
|
"we can't support these secondary dvds: %s",
|
|
strings.Join(c.SecondaryDvdImages, ", ")))
|
|
}
|
|
} else if c.Generation > 1 && len(c.SecondaryDvdImages) > 16 {
|
|
if c.GuestAdditionsMode == "attach" {
|
|
errs = append(errs, fmt.Errorf("There are not enough drive letters available for "+
|
|
"scsi (limited to 16), so we can't support guest additions and these secondary dvds: %s",
|
|
strings.Join(c.SecondaryDvdImages, ", ")))
|
|
} else {
|
|
errs = append(errs, fmt.Errorf("There are not enough drive letters available for "+
|
|
"scsi (limited to 16), so we can't support these secondary dvds: %s",
|
|
strings.Join(c.SecondaryDvdImages, ", ")))
|
|
}
|
|
}
|
|
|
|
if c.EnableVirtualizationExtensions {
|
|
hasVirtualMachineVirtualizationExtensions, err := powershell.HasVirtualMachineVirtualizationExtensions()
|
|
if err != nil {
|
|
errs = append(errs, fmt.Errorf("Failed detecting virtual machine virtualization "+
|
|
"extensions support: %s", err))
|
|
} else {
|
|
if !hasVirtualMachineVirtualizationExtensions {
|
|
errs = append(errs, fmt.Errorf("This version of Hyper-V does not support "+
|
|
"virtual machine virtualization extension. Please use Windows 10 or Windows Server 2016 "+
|
|
"or newer."))
|
|
}
|
|
}
|
|
}
|
|
|
|
if c.EnableVirtualizationExtensions {
|
|
if c.EnableDynamicMemory {
|
|
warning := fmt.Sprintf("For nested virtualization, when virtualization extension is enabled, " +
|
|
"dynamic memory should not be allowed.")
|
|
warns = Appendwarns(warns, warning)
|
|
}
|
|
|
|
if !c.EnableMacSpoofing {
|
|
warning := fmt.Sprintf("For nested virtualization, when virtualization extension is enabled, " +
|
|
"mac spoofing should be allowed.")
|
|
warns = Appendwarns(warns, warning)
|
|
}
|
|
|
|
if c.RamSize < MinNestedVirtualizationRamSize {
|
|
warning := fmt.Sprintf("For nested virtualization, when virtualization extension is enabled, " +
|
|
"there should be 4GB or more memory set for the vm, otherwise Hyper-V may fail to start " +
|
|
"any nested VMs.")
|
|
warns = Appendwarns(warns, warning)
|
|
}
|
|
}
|
|
|
|
if c.SwitchVlanId != "" {
|
|
if c.SwitchVlanId != c.VlanId {
|
|
warning := fmt.Sprintf("Switch network adaptor vlan should match virtual machine network adaptor " +
|
|
"vlan. The switch will not be able to see traffic from the VM.")
|
|
warns = Appendwarns(warns, warning)
|
|
}
|
|
}
|
|
|
|
err := c.checkDiskBlockSize()
|
|
if err != nil {
|
|
errs = append(errs, err)
|
|
}
|
|
err = c.checkRamSize()
|
|
if err != nil {
|
|
errs = append(errs, err)
|
|
}
|
|
|
|
// warns
|
|
warning := c.checkHostAvailableMemory()
|
|
if warning != "" {
|
|
warns = Appendwarns(warns, warning)
|
|
}
|
|
|
|
if errs != nil && len(errs) > 0 {
|
|
return errs, warns
|
|
}
|
|
|
|
return nil, warns
|
|
}
|
|
|
|
func (c *CommonConfig) checkDiskBlockSize() error {
|
|
if c.DiskBlockSize == 0 {
|
|
c.DiskBlockSize = DefaultDiskBlockSize
|
|
}
|
|
|
|
log.Println(fmt.Sprintf("%s: %v", "DiskBlockSize", c.DiskBlockSize))
|
|
|
|
if c.DiskBlockSize < MinDiskBlockSize {
|
|
return fmt.Errorf("disk_block_size: Virtual machine requires disk block size >= %v MB, but defined: %v",
|
|
MinDiskBlockSize, c.DiskBlockSize)
|
|
} else if c.DiskBlockSize > MaxDiskBlockSize {
|
|
return fmt.Errorf("disk_block_size: Virtual machine requires disk block size <= %v MB, but defined: %v",
|
|
MaxDiskBlockSize, c.DiskBlockSize)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *CommonConfig) checkHostAvailableMemory() string {
|
|
powershellAvailable, _, _ := powershell.IsPowershellAvailable()
|
|
|
|
if powershellAvailable {
|
|
freeMB := powershell.GetHostAvailableMemory()
|
|
|
|
if (freeMB - float64(c.RamSize)) < LowRam {
|
|
return fmt.Sprintf("Hyper-V might fail to create a VM if there is not enough free memory in the system.")
|
|
}
|
|
}
|
|
|
|
return ""
|
|
}
|
|
|
|
func (c *CommonConfig) checkRamSize() error {
|
|
if c.RamSize == 0 {
|
|
c.RamSize = DefaultRamSize
|
|
}
|
|
|
|
log.Println(fmt.Sprintf("%s: %v", "RamSize", c.RamSize))
|
|
|
|
if c.RamSize < MinRamSize {
|
|
return fmt.Errorf("memory: Virtual machine requires memory size >= %v MB, but defined: %v",
|
|
MinRamSize, c.RamSize)
|
|
} else if c.RamSize > MaxRamSize {
|
|
return fmt.Errorf("memory: Virtual machine requires memory size <= %v MB, but defined: %v",
|
|
MaxRamSize, c.RamSize)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *CommonConfig) detectSwitchName(buildName string) string {
|
|
powershellAvailable, _, _ := powershell.IsPowershellAvailable()
|
|
|
|
if powershellAvailable {
|
|
// no switch name, try to get one attached to a online network adapter
|
|
onlineSwitchName, err := hyperv.GetExternalOnlineVirtualSwitch()
|
|
if onlineSwitchName != "" && err == nil {
|
|
return onlineSwitchName
|
|
}
|
|
}
|
|
|
|
return fmt.Sprintf("packer-%s", buildName)
|
|
}
|
|
|
|
func Appendwarns(slice []string, data ...string) []string {
|
|
m := len(slice)
|
|
n := m + len(data)
|
|
if n > cap(slice) { // if necessary, reallocate
|
|
// allocate double what's needed, for future growth.
|
|
newSlice := make([]string, (n+1)*2)
|
|
copy(newSlice, slice)
|
|
slice = newSlice
|
|
}
|
|
slice = slice[0:n]
|
|
copy(slice[m:n], data)
|
|
return slice
|
|
}
|