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config_qemu_disk.go
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config_qemu_disk.go
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package proxmox
import (
"errors"
"fmt"
"math"
"regexp"
"strconv"
"strings"
)
type diskSyntaxEnum bool
const (
diskSyntaxFile diskSyntaxEnum = false
diskSyntaxVolume diskSyntaxEnum = true
)
type IsoFile struct {
File string `json:"file"`
Storage string `json:"storage"`
// SizeInKibibytes can only be retrieved, setting it has no effect
SizeInKibibytes string `json:"size"`
}
const (
Error_IsoFile_File string = "file may not be empty"
Error_IsoFile_Storage string = "storage may not be empty"
)
func (iso IsoFile) Validate() error {
if iso.File == "" {
return errors.New(Error_IsoFile_File)
}
if iso.Storage == "" {
return errors.New(Error_IsoFile_Storage)
}
return nil
}
type QemuCdRom struct {
Iso *IsoFile `json:"iso,omitempty"`
// Passthrough and File are mutually exclusive
Passthrough bool `json:"passthrough,omitempty"`
}
const (
Error_QemuCdRom_MutuallyExclusive string = "iso and passthrough are mutually exclusive"
)
func (cdRom QemuCdRom) mapToApiValues() string {
if cdRom.Passthrough {
return "cdrom,media=cdrom"
}
if cdRom.Iso != nil {
return cdRom.Iso.Storage + ":iso/" + cdRom.Iso.File + ",media=cdrom"
}
return "none,media=cdrom"
}
func (QemuCdRom) mapToStruct(settings qemuCdRom) *QemuCdRom {
if settings.File != "" {
return &QemuCdRom{
Iso: &IsoFile{
Storage: settings.Storage,
File: settings.File,
SizeInKibibytes: settings.SizeInKibibytes,
},
}
}
return &QemuCdRom{Passthrough: settings.Passthrough}
}
func (cdRom QemuCdRom) Validate() error {
if cdRom.Iso != nil {
err := cdRom.Iso.Validate()
if err != nil {
return err
}
if cdRom.Passthrough {
return errors.New(Error_QemuCdRom_MutuallyExclusive)
}
}
return nil
}
type qemuCdRom struct {
CdRom bool
// "local:iso/debian-11.0.0-amd64-netinst.iso,media=cdrom,size=377M"
Passthrough bool
Storage string
Format QemuDiskFormat // Only set for Cloud-init drives
File string
SizeInKibibytes string
}
func (qemuCdRom) mapToStruct(diskData string, settings map[string]interface{}) *qemuCdRom {
if setting, isSet := settings["media"]; isSet {
if setting.(string) != "cdrom" {
return nil
}
} else {
return nil
}
if _, isSet := settings["none"]; isSet {
return &qemuCdRom{CdRom: true}
}
if _, isSet := settings["cdrom"]; isSet {
return &qemuCdRom{CdRom: true, Passthrough: true}
}
tmpStorage := strings.Split(diskData, ":")
if len(tmpStorage) > 1 {
tmpFile := strings.Split(diskData, "/")
switch len(tmpFile) {
case 1:
return &qemuCdRom{
Storage: tmpStorage[0],
File: tmpStorage[1],
Format: QemuDiskFormat_Raw,
}
case 2:
tmpFileType := strings.Split(tmpFile[1], ".")
if len(tmpFileType) > 1 {
fileType := QemuDiskFormat(tmpFileType[len(tmpFileType)-1])
if fileType == "iso" {
if setting, isSet := settings["size"]; isSet {
return &qemuCdRom{
CdRom: true,
Storage: tmpStorage[0],
File: tmpFile[1],
SizeInKibibytes: setting.(string),
}
}
} else {
return &qemuCdRom{
Storage: tmpStorage[0],
File: tmpFile[1],
Format: fileType,
}
}
}
}
}
return nil
}
type QemuCloudInitDisk struct {
Format QemuDiskFormat `json:"format,omitempty"`
Storage string `json:"storage,omitempty"`
}
const (
Error_QemuCloudInitDisk_Storage string = "storage should not be empty"
Error_QemuCloudInitDisk_OnlyOne string = "only one cloud init disk may exist"
)
func (QemuCloudInitDisk) checkDuplicates(numberOFCloudInitDrives uint8) error {
if numberOFCloudInitDrives > 1 {
return errors.New(Error_QemuCloudInitDisk_OnlyOne)
}
return nil
}
func (cloudInit QemuCloudInitDisk) mapToApiValues() string {
return cloudInit.Storage + ":cloudinit,format=" + string(cloudInit.Format)
}
func (QemuCloudInitDisk) mapToStruct(settings qemuCdRom) *QemuCloudInitDisk {
return &QemuCloudInitDisk{
Storage: settings.Storage,
Format: settings.Format,
}
}
func (cloudInit QemuCloudInitDisk) Validate() error {
if err := cloudInit.Format.Validate(); err != nil {
return err
}
if cloudInit.Storage == "" {
return errors.New(Error_QemuCloudInitDisk_Storage)
}
return nil
}
type qemuDisk struct {
AsyncIO QemuDiskAsyncIO
Backup bool
Bandwidth QemuDiskBandwidth
Cache QemuDiskCache
Discard bool
Disk bool // true = disk, false = passthrough
EmulateSSD bool // Only set for ide,sata,scsi
// TODO custom type
File string // Only set for Passthrough.
fileSyntax diskSyntaxEnum // private enum to determine the syntax of the file path, as this changes depending on the type of backing storage. ie nfs, lvm, local, etc.
Format QemuDiskFormat // Only set for Disk
Id uint // Only set for Disk
IOThread bool // Only set for scsi,virtio
LinkedDiskId *uint // Only set for Disk
ReadOnly bool // Only set for scsi,virtio
Replicate bool
Serial QemuDiskSerial
SizeInKibibytes QemuDiskSize
// TODO custom type
Storage string // Only set for Disk
Type qemuDiskType
WorldWideName QemuWorldWideName
}
const (
Error_QemuDisk_File string = "file may not be empty"
Error_QemuDisk_MutuallyExclusive string = "settings cdrom,cloudinit,disk,passthrough are mutually exclusive"
Error_QemuDisk_Storage string = "storage may not be empty"
)
// create the disk string for the api
func (disk qemuDisk) formatDisk(vmID, LinkedVmId uint, currentStorage string, currentFormat QemuDiskFormat, syntax diskSyntaxEnum) (settings string) {
tmpId := strconv.Itoa(int(vmID))
// vm-100-disk-0
settings = "vm-" + tmpId + "-disk-" + strconv.Itoa(int(disk.Id))
switch syntax {
case diskSyntaxFile:
// format is ignored when syntax is diskSyntaxVolume
// normal disk syntax
// 100/vm-100-disk-0.raw
settings = tmpId + "/" + settings + "." + string(disk.Format)
if disk.LinkedDiskId != nil && disk.Storage == currentStorage && disk.Format == currentFormat {
// linked clone disk syntax
// 110/base-110-disk-1.raw/100/vm-100-disk-0.raw
tmpId = strconv.Itoa(int(LinkedVmId))
settings = tmpId + "/base-" + tmpId + "-disk-" + strconv.Itoa(int(*disk.LinkedDiskId)) + "." + string(disk.Format) + "/" + settings
}
case diskSyntaxVolume:
// normal disk syntax
// vm-100-disk-0
if disk.LinkedDiskId != nil && disk.Storage == currentStorage {
// linked clone disk syntax
// base-110-disk-1/vm-100-disk-0
tmpId = strconv.Itoa(int(LinkedVmId))
settings = "base-" + tmpId + "-disk-" + strconv.Itoa(int(*disk.LinkedDiskId)) + "/" + settings
}
}
// storage:100/vm-100-disk-0.raw
// storage:110/base-110-disk-1.raw/100/vm-100-disk-0.raw
// storage:vm-100-disk-0
// storage:base-110-disk-1/vm-100-disk-0
settings = disk.Storage + ":" + settings
return
}
// Maps all the disk related settings to api values proxmox understands.
func (disk qemuDisk) mapToApiValues(vmID, LinkedVmId uint, currentStorage string, currentFormat QemuDiskFormat, syntax diskSyntaxEnum, create bool) (settings string) {
if disk.Storage != "" {
if create {
if disk.SizeInKibibytes%gibibyte == 0 {
settings = disk.Storage + ":" + strconv.FormatInt(int64(disk.SizeInKibibytes/gibibyte), 10)
} else {
settings = disk.Storage + ":0.001"
}
} else {
settings = disk.formatDisk(vmID, LinkedVmId, currentStorage, currentFormat, syntax)
}
}
if disk.File != "" {
settings = disk.File
}
// Set File
if disk.AsyncIO != "" {
settings = settings + ",aio=" + string(disk.AsyncIO)
}
if !disk.Backup {
settings = settings + ",backup=0"
}
if disk.Cache != "" {
settings = settings + ",cache=" + string(disk.Cache)
}
if disk.Discard {
settings = settings + ",discard=on"
}
if disk.Format != "" && create {
settings = settings + ",format=" + string(disk.Format)
}
// media
if disk.Bandwidth.Iops.ReadLimit.Concurrent != 0 {
settings = settings + ",iops_rd=" + strconv.Itoa(int(disk.Bandwidth.Iops.ReadLimit.Concurrent))
}
if disk.Bandwidth.Iops.ReadLimit.Burst != 0 {
settings = settings + ",iops_rd_max=" + strconv.Itoa(int(disk.Bandwidth.Iops.ReadLimit.Burst))
}
if disk.Bandwidth.Iops.ReadLimit.BurstDuration != 0 {
settings = settings + ",iops_rd_max_length=" + strconv.Itoa(int(disk.Bandwidth.Iops.ReadLimit.BurstDuration))
}
if disk.Bandwidth.Iops.WriteLimit.Concurrent != 0 {
settings = settings + ",iops_wr=" + strconv.Itoa(int(disk.Bandwidth.Iops.WriteLimit.Concurrent))
}
if disk.Bandwidth.Iops.WriteLimit.Burst != 0 {
settings = settings + ",iops_wr_max=" + strconv.Itoa(int(disk.Bandwidth.Iops.WriteLimit.Burst))
}
if disk.Bandwidth.Iops.WriteLimit.BurstDuration != 0 {
settings = settings + ",iops_wr_max_length=" + strconv.Itoa(int(disk.Bandwidth.Iops.WriteLimit.BurstDuration))
}
if (disk.Type == scsi || disk.Type == virtIO) && disk.IOThread {
settings = settings + ",iothread=1"
}
if disk.Bandwidth.MBps.ReadLimit.Concurrent != 0 {
settings = settings + ",mbps_rd=" + floatToTrimmedString(float64(disk.Bandwidth.MBps.ReadLimit.Concurrent), 2)
}
if disk.Bandwidth.MBps.ReadLimit.Burst != 0 {
settings = settings + ",mbps_rd_max=" + floatToTrimmedString(float64(disk.Bandwidth.MBps.ReadLimit.Burst), 2)
}
if disk.Bandwidth.MBps.WriteLimit.Concurrent != 0 {
settings = settings + ",mbps_wr=" + floatToTrimmedString(float64(disk.Bandwidth.MBps.WriteLimit.Concurrent), 2)
}
if disk.Bandwidth.MBps.WriteLimit.Burst != 0 {
settings = settings + ",mbps_wr_max=" + floatToTrimmedString(float64(disk.Bandwidth.MBps.WriteLimit.Burst), 2)
}
if !disk.Replicate {
settings = settings + ",replicate=0"
}
if (disk.Type == scsi || disk.Type == virtIO) && disk.ReadOnly {
settings = settings + ",ro=1"
}
if disk.Serial != "" {
settings = settings + ",serial=" + string(disk.Serial)
}
if disk.Type != virtIO && disk.EmulateSSD {
settings = settings + ",ssd=1"
}
if disk.WorldWideName != "" {
settings = settings + ",wwn=" + string(disk.WorldWideName)
}
return
}
// Maps all the disk related settings to our own data structure.
func (qemuDisk) mapToStruct(diskData string, settings map[string]interface{}, linkedVmId *uint) *qemuDisk {
disk := qemuDisk{Backup: true}
if diskData[0:1] == "/" {
disk.File = diskData
} else {
disk.Id, disk.Storage, disk.Format, disk.LinkedDiskId, disk.fileSyntax = qemuDisk{}.parseDisk(diskData, linkedVmId)
}
if len(settings) == 0 {
return nil
}
// Replicate defaults to true
disk.Replicate = true
if value, isSet := settings["aio"]; isSet {
disk.AsyncIO = QemuDiskAsyncIO(value.(string))
}
if value, isSet := settings["backup"]; isSet {
disk.Backup, _ = strconv.ParseBool(value.(string))
}
if value, isSet := settings["cache"]; isSet {
disk.Cache = QemuDiskCache(value.(string))
}
if value, isSet := settings["discard"]; isSet {
if value.(string) == "on" {
disk.Discard = true
}
}
if value, isSet := settings["iops_rd"]; isSet {
tmp, _ := strconv.Atoi(value.(string))
disk.Bandwidth.Iops.ReadLimit.Concurrent = QemuDiskBandwidthIopsLimitConcurrent(tmp)
}
if value, isSet := settings["iops_rd_max"]; isSet {
tmp, _ := strconv.Atoi(value.(string))
disk.Bandwidth.Iops.ReadLimit.Burst = QemuDiskBandwidthIopsLimitBurst(tmp)
}
if value, isSet := settings["iops_rd_max_length"]; isSet {
tmp, _ := strconv.Atoi(value.(string))
disk.Bandwidth.Iops.ReadLimit.BurstDuration = uint(tmp)
}
if value, isSet := settings["iops_wr"]; isSet {
tmp, _ := strconv.Atoi(value.(string))
disk.Bandwidth.Iops.WriteLimit.Concurrent = QemuDiskBandwidthIopsLimitConcurrent(tmp)
}
if value, isSet := settings["iops_wr_max"]; isSet {
tmp, _ := strconv.Atoi(value.(string))
disk.Bandwidth.Iops.WriteLimit.Burst = QemuDiskBandwidthIopsLimitBurst(tmp)
}
if value, isSet := settings["iops_wr_max_length"]; isSet {
tmp, _ := strconv.Atoi(value.(string))
disk.Bandwidth.Iops.WriteLimit.BurstDuration = uint(tmp)
}
if value, isSet := settings["iothread"]; isSet {
disk.IOThread, _ = strconv.ParseBool(value.(string))
}
if value, isSet := settings["mbps_rd"]; isSet {
tmp, _ := strconv.ParseFloat(value.(string), 32)
disk.Bandwidth.MBps.ReadLimit.Concurrent = QemuDiskBandwidthMBpsLimitConcurrent(math.Round(tmp*100) / 100)
}
if value, isSet := settings["mbps_rd_max"]; isSet {
tmp, _ := strconv.ParseFloat(value.(string), 32)
disk.Bandwidth.MBps.ReadLimit.Burst = QemuDiskBandwidthMBpsLimitBurst(math.Round(tmp*100) / 100)
}
if value, isSet := settings["mbps_wr"]; isSet {
tmp, _ := strconv.ParseFloat(value.(string), 32)
disk.Bandwidth.MBps.WriteLimit.Concurrent = QemuDiskBandwidthMBpsLimitConcurrent(math.Round(tmp*100) / 100)
}
if value, isSet := settings["mbps_wr_max"]; isSet {
tmp, _ := strconv.ParseFloat(value.(string), 32)
disk.Bandwidth.MBps.WriteLimit.Burst = QemuDiskBandwidthMBpsLimitBurst(math.Round(tmp*100) / 100)
}
if value, isSet := settings["replicate"]; isSet {
disk.Replicate, _ = strconv.ParseBool(value.(string))
}
if value, isSet := settings["ro"]; isSet {
disk.ReadOnly, _ = strconv.ParseBool(value.(string))
}
if value, isSet := settings["serial"]; isSet {
disk.Serial = QemuDiskSerial(value.(string))
}
if value, isSet := settings["size"]; isSet {
disk.SizeInKibibytes = QemuDiskSize(0).parse(value.(string))
}
if value, isSet := settings["ssd"]; isSet {
disk.EmulateSSD, _ = strconv.ParseBool(value.(string))
}
if value, isSet := settings["wwn"]; isSet {
disk.WorldWideName = QemuWorldWideName(value.(string))
}
return &disk
}
// parse and extract the values from the disk data
// storage:110/base-110-disk-1.qcow2/100/vm-100-disk-0.qcow2
// storage:100/vm-100-disk-0.qcow2
// storage:base-110-disk-1/vm-100-disk-0
// storage:vm-100-disk-0
func (qemuDisk) parseDisk(diskData string, linkedVmId *uint) (diskId uint, storage string, format QemuDiskFormat, linkedDiskId *uint, syntax diskSyntaxEnum) {
parts := strings.Split(diskData, ":")
storage = parts[0]
if len(parts) != 2 {
return
}
pathParts := strings.Split(parts[1], "/")
switch len(pathParts) {
case 1:
syntax = diskSyntaxVolume
case 2:
if _, err := strconv.Atoi(pathParts[0]); err != nil { // linked clone
tmp := strings.Split(strings.Split(pathParts[0], ".")[0], "-")
if len(tmp) > 1 {
if tmpVmId, err := strconv.Atoi(tmp[1]); err == nil {
*linkedVmId = uint(tmpVmId)
}
if tmpDiskId, err := strconv.Atoi(tmp[len(tmp)-1]); err == nil {
tmpDiskIdPointer := uint(tmpDiskId)
linkedDiskId = &tmpDiskIdPointer
}
syntax = diskSyntaxVolume
}
} else {
syntax = diskSyntaxFile
}
case 4: // Linked Clone
if tmpVmId, err := strconv.Atoi(pathParts[0]); err == nil {
*linkedVmId = uint(tmpVmId)
}
tmp := strings.Split(strings.Split(pathParts[1], ".")[0], "-")
if len(tmp) > 1 {
if tmpDiskId, err := strconv.Atoi(tmp[len(tmp)-1]); err == nil {
tmpDiskIdPointer := uint(tmpDiskId)
linkedDiskId = &tmpDiskIdPointer
}
}
syntax = diskSyntaxFile
}
diskNameAndFormat := strings.Split(pathParts[len(pathParts)-1], ".")
if len(diskNameAndFormat) > 0 {
tmp := strings.Split(diskNameAndFormat[0], "-")
if len(tmp) > 1 {
if tmpDiskId, err := strconv.Atoi(tmp[len(tmp)-1]); err == nil {
diskId = uint(tmpDiskId)
}
}
// set disk format, default to raw
if len(diskNameAndFormat) == 2 {
format = QemuDiskFormat(diskNameAndFormat[1])
} else {
format = QemuDiskFormat_Raw
}
}
return
}
func (disk *qemuDisk) validate() (err error) {
if disk == nil {
return
}
if err = disk.AsyncIO.Validate(); err != nil {
return
}
if err = disk.Bandwidth.Validate(); err != nil {
return
}
if err = disk.Cache.Validate(); err != nil {
return
}
if err = disk.Serial.Validate(); err != nil {
return
}
if err = disk.WorldWideName.Validate(); err != nil {
return
}
if disk.Disk {
// disk
if err = disk.Format.Validate(); err != nil {
return
}
if err = disk.SizeInKibibytes.Validate(); err != nil {
return
}
if disk.Storage == "" {
return errors.New(Error_QemuDisk_Storage)
}
} else {
// passthrough
if disk.File == "" {
return errors.New(Error_QemuDisk_File)
}
}
return
}
type QemuDiskAsyncIO string
const (
QemuDiskAsyncIO_Native QemuDiskAsyncIO = "native"
QemuDiskAsyncIO_Threads QemuDiskAsyncIO = "threads"
QemuDiskAsyncIO_IOuring QemuDiskAsyncIO = "io_uring"
)
func (QemuDiskAsyncIO) Error() error {
return fmt.Errorf("asyncio can only be one of the following values: %s,%s,%s", QemuDiskAsyncIO_Native, QemuDiskAsyncIO_Threads, QemuDiskAsyncIO_IOuring)
}
func (asyncIO QemuDiskAsyncIO) Validate() error {
switch asyncIO {
case "", QemuDiskAsyncIO_Native, QemuDiskAsyncIO_Threads, QemuDiskAsyncIO_IOuring:
return nil
}
return QemuDiskAsyncIO("").Error()
}
type QemuDiskBandwidth struct {
MBps QemuDiskBandwidthMBps `json:"mbps,omitempty"`
Iops QemuDiskBandwidthIops `json:"iops,omitempty"`
}
func (bandwidth QemuDiskBandwidth) Validate() error {
err := bandwidth.MBps.Validate()
if err != nil {
return err
}
return bandwidth.Iops.Validate()
}
type QemuDiskBandwidthIops struct {
ReadLimit QemuDiskBandwidthIopsLimit `json:"read,omitempty"`
WriteLimit QemuDiskBandwidthIopsLimit `json:"write,omitempty"`
}
func (iops QemuDiskBandwidthIops) Validate() error {
err := iops.ReadLimit.Validate()
if err != nil {
return err
}
return iops.WriteLimit.Validate()
}
type QemuDiskBandwidthIopsLimit struct {
Burst QemuDiskBandwidthIopsLimitBurst `json:"burst,omitempty"` // 0 = unlimited
BurstDuration uint `json:"burst_duration,omitempty"` // burst duration in seconds
Concurrent QemuDiskBandwidthIopsLimitConcurrent `json:"concurrent,omitempty"` // 0 = unlimited
}
func (limit QemuDiskBandwidthIopsLimit) Validate() (err error) {
if err = limit.Burst.Validate(); err != nil {
return
}
err = limit.Concurrent.Validate()
return
}
type QemuDiskBandwidthIopsLimitBurst uint
const (
Error_QemuDiskBandwidthIopsLimitBurst string = "burst may not be lower then 10 except for 0"
)
func (limit QemuDiskBandwidthIopsLimitBurst) Validate() error {
if limit != 0 && limit < 10 {
return errors.New(Error_QemuDiskBandwidthIopsLimitBurst)
}
return nil
}
type QemuDiskBandwidthIopsLimitConcurrent uint
const (
Error_QemuDiskBandwidthIopsLimitConcurrent string = "concurrent may not be lower then 10 except for 0"
)
func (limit QemuDiskBandwidthIopsLimitConcurrent) Validate() error {
if limit != 0 && limit < 10 {
return errors.New(Error_QemuDiskBandwidthIopsLimitConcurrent)
}
return nil
}
type QemuDiskBandwidthMBps struct {
ReadLimit QemuDiskBandwidthMBpsLimit `json:"read,omitempty"`
WriteLimit QemuDiskBandwidthMBpsLimit `json:"write,omitempty"`
}
func (data QemuDiskBandwidthMBps) Validate() error {
err := data.ReadLimit.Validate()
if err != nil {
return err
}
return data.WriteLimit.Validate()
}
type QemuDiskBandwidthMBpsLimit struct {
Burst QemuDiskBandwidthMBpsLimitBurst `json:"burst,omitempty"` // 0 = unlimited
Concurrent QemuDiskBandwidthMBpsLimitConcurrent `json:"concurrent,omitempty"` // 0 = unlimited
}
func (limit QemuDiskBandwidthMBpsLimit) Validate() (err error) {
if err = limit.Burst.Validate(); err != nil {
return
}
err = limit.Concurrent.Validate()
return
}
const (
Error_QemuDiskBandwidthMBpsLimitBurst string = "burst may not be lower then 1 except for 0"
)
type QemuDiskBandwidthMBpsLimitBurst float32
func (limit QemuDiskBandwidthMBpsLimitBurst) Validate() error {
if limit != 0 && limit < 1 {
return errors.New(Error_QemuDiskBandwidthMBpsLimitBurst)
}
return nil
}
const (
Error_QemuDiskBandwidthMBpsLimitConcurrent string = "concurrent may not be lower then 1 except for 0"
)
type QemuDiskBandwidthMBpsLimitConcurrent float32
func (limit QemuDiskBandwidthMBpsLimitConcurrent) Validate() error {
if limit != 0 && limit < 1 {
return errors.New(Error_QemuDiskBandwidthMBpsLimitConcurrent)
}
return nil
}
type QemuDiskCache string
const (
QemuDiskCache_None QemuDiskCache = "none"
QemuDiskCache_WriteThrough QemuDiskCache = "writethrough"
QemuDiskCache_WriteBack QemuDiskCache = "writeback"
QemuDiskCache_Unsafe QemuDiskCache = "unsafe"
QemuDiskCache_DirectSync QemuDiskCache = "directsync"
)
func (QemuDiskCache) Error() error {
return fmt.Errorf("cache can only be one of the following values: %s,%s,%s,%s,%s", QemuDiskCache_None, QemuDiskCache_WriteThrough, QemuDiskCache_WriteBack, QemuDiskCache_Unsafe, QemuDiskCache_DirectSync)
}
func (cache QemuDiskCache) Validate() error {
switch cache {
case "", QemuDiskCache_None, QemuDiskCache_WriteThrough, QemuDiskCache_WriteBack, QemuDiskCache_Unsafe, QemuDiskCache_DirectSync:
return nil
}
return QemuDiskCache("").Error()
}
type QemuDiskFormat string
const (
QemuDiskFormat_Cow QemuDiskFormat = "cow"
QemuDiskFormat_Cloop QemuDiskFormat = "cloop"
QemuDiskFormat_Qcow QemuDiskFormat = "qcow"
QemuDiskFormat_Qcow2 QemuDiskFormat = "qcow2"
QemuDiskFormat_Qed QemuDiskFormat = "qed"
QemuDiskFormat_Vmdk QemuDiskFormat = "vmdk"
QemuDiskFormat_Raw QemuDiskFormat = "raw"
)
func (QemuDiskFormat) Error() error {
return fmt.Errorf("format can only be one of the following values: %s,%s,%s,%s,%s,%s,%s", QemuDiskFormat_Cow, QemuDiskFormat_Cloop, QemuDiskFormat_Qcow, QemuDiskFormat_Qcow2, QemuDiskFormat_Qed, QemuDiskFormat_Vmdk, QemuDiskFormat_Raw)
}
func (format QemuDiskFormat) Validate() error {
switch format {
case QemuDiskFormat_Cow, QemuDiskFormat_Cloop, QemuDiskFormat_Qcow, QemuDiskFormat_Qcow2, QemuDiskFormat_Qed, QemuDiskFormat_Vmdk, QemuDiskFormat_Raw:
return nil
}
return QemuDiskFormat("").Error()
}
type QemuDiskId string
const (
ERROR_QemuDiskId_Invalid string = "invalid Disk ID"
)
func (id QemuDiskId) Validate() error {
if len(id) >= 7 {
if id[0:6] == "virtio" {
if id[6:] != "0" && strings.HasPrefix(string(id[6:]), "0") {
return errors.New(ERROR_QemuDiskId_Invalid)
}
number, err := strconv.Atoi(string(id[6:]))
if err != nil {
return errors.New(ERROR_QemuDiskId_Invalid)
}
if number >= 0 && number <= 15 {
return nil
}
}
}
if len(id) >= 5 {
if id[0:4] == "sata" {
if id[4:] != "0" && strings.HasPrefix(string(id[4:]), "0") {
return errors.New(ERROR_QemuDiskId_Invalid)
}
number, err := strconv.Atoi(string(id[4:]))
if err != nil {
return errors.New(ERROR_QemuDiskId_Invalid)
}
if number >= 0 && number <= 5 {
return nil
}
}
if id[0:4] == "scsi" {
if id[4:] != "0" && strings.HasPrefix(string(id[4:]), "0") {
return errors.New(ERROR_QemuDiskId_Invalid)
}
number, err := strconv.Atoi(string(id[4:]))
if err != nil {
return errors.New(ERROR_QemuDiskId_Invalid)
}
if number >= 0 && number <= 30 {
return nil
}
}
}
if len(id) == 4 {
if id[0:3] == "ide" {
number, err := strconv.Atoi(string(id[3]))
if err != nil {
return errors.New(ERROR_QemuDiskId_Invalid)
}
if number >= 0 && number <= 3 {
return nil
}
}
}
return errors.New(ERROR_QemuDiskId_Invalid)
}
type qemuDiskMark struct {
Format QemuDiskFormat
Id QemuDiskId
Size QemuDiskSize
Storage string
Type qemuDiskType
}
// Generate lists of disks that need to be moved and or resized
func (disk *qemuDiskMark) markChanges(currentDisk *qemuDiskMark, id QemuDiskId, changes *qemuUpdateChanges) {
if disk == nil || currentDisk == nil {
return
}
// Disk
if disk.Size >= currentDisk.Size {
// Update
if disk.Size > currentDisk.Size {
changes.Resize = append(changes.Resize, qemuDiskResize{
Id: id,
SizeInKibibytes: disk.Size,
})
}
if disk.Storage != currentDisk.Storage || disk.Format != currentDisk.Format {
var format *QemuDiskFormat
if disk.Format != currentDisk.Format {
format = &disk.Format
}
changes.Move = append(changes.Move, qemuDiskMove{
Format: format,
Id: id,
Storage: disk.Storage,
})
}
}
}
type QemuDiskSerial string
const (
Error_QemuDiskSerial_IllegalCharacter string = "serial may only contain the following characters: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-_"
Error_QemuDiskSerial_IllegalLength string = "serial may only be 60 characters long"
)
// QemuDiskSerial may only contain the following characters: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-_
// And has a max length of 60 characters
func (serial QemuDiskSerial) Validate() error {
regex, _ := regexp.Compile(`^([a-z]|[A-Z]|[0-9]|_|-)*$`)
if !regex.Match([]byte(serial)) {
return errors.New(Error_QemuDiskSerial_IllegalCharacter)
}
if len(serial) > 60 {
return errors.New(Error_QemuDiskSerial_IllegalLength)
}
return nil
}
// Amount of Kibibytes the disk should be.
// Disk size must be greater then 4096.
type QemuDiskSize uint
const (
QemuDiskSize_Error_Minimum string = "disk size must be greater then 4096"
qemuDiskSize_Minimum QemuDiskSize = 4097
mebibyte QemuDiskSize = 1024
gibibyte QemuDiskSize = 1048576
tebibyte QemuDiskSize = 1073741824
)
func (QemuDiskSize) parse(rawSize string) (size QemuDiskSize) {
tmpSize, _ := strconv.ParseInt(rawSize[:len(rawSize)-1], 10, 0)
switch rawSize[len(rawSize)-1:] {
case "T":
size = QemuDiskSize(tmpSize) * tebibyte
case "G":
size = QemuDiskSize(tmpSize) * gibibyte
case "M":
size = QemuDiskSize(tmpSize) * mebibyte
case "K":
size = QemuDiskSize(tmpSize)
}
return
}
func (size QemuDiskSize) Validate() error {
if size < qemuDiskSize_Minimum {
return errors.New(QemuDiskSize_Error_Minimum)
}
return nil
}
type qemuDiskResize struct {
Id QemuDiskId
SizeInKibibytes QemuDiskSize
}
// Increase the disk size to the specified amount in gigabytes
// Decrease of disk size is not permitted.
func (disk qemuDiskResize) resize(vmr *VmRef, client *Client) (exitStatus string, err error) {
return client.PutWithTask(map[string]interface{}{"disk": disk.Id, "size": strconv.FormatInt(int64(disk.SizeInKibibytes), 10) + "K"}, fmt.Sprintf("/nodes/%s/%s/%d/resize", vmr.node, vmr.vmType, vmr.vmId))
}
type qemuDiskMove struct {
Format *QemuDiskFormat
Id QemuDiskId
Storage string
}
func (disk qemuDiskMove) mapToApiValues(delete bool) (params map[string]interface{}) {
params = map[string]interface{}{"disk": string(disk.Id), "storage": string(disk.Storage)}
if delete {
params["delete"] = "1"
}
if disk.Format != nil {
params["format"] = string(*disk.Format)
}
return
}
func (disk qemuDiskMove) move(delete bool, vmr *VmRef, client *Client) (exitStatus interface{}, err error) {
return client.PostWithTask(disk.mapToApiValues(delete), fmt.Sprintf("/nodes/%s/%s/%d/move_disk", vmr.node, vmr.vmType, vmr.vmId))
}
func (disk qemuDiskMove) Validate() (err error) {
if disk.Format != nil {
err = disk.Format.Validate()
if err != nil {
return
}
}
err = disk.Id.Validate()
// TODO validate storage when it has custom type
return
}
type qemuDiskType int
const (
ide qemuDiskType = 0
sata qemuDiskType = 1
scsi qemuDiskType = 2
virtIO qemuDiskType = 3
)
type qemuStorage struct {
CdRom *QemuCdRom
CloudInit *QemuCloudInitDisk
Disk *qemuDisk
Passthrough *qemuDisk
}
func (storage *qemuStorage) mapToApiValues(currentStorage *qemuStorage, vmID, linkedVmId uint, id QemuDiskId, params map[string]interface{}, delete string) string {
if storage == nil {
return delete
}
// CDROM
if storage.CdRom != nil {
if currentStorage == nil || currentStorage.CdRom == nil {
// Create
params[string(id)] = storage.CdRom.mapToApiValues()
} else {
// Update
cdRom := storage.CdRom.mapToApiValues()
if cdRom != currentStorage.CdRom.mapToApiValues() {
params[string(id)] = cdRom
}
}
return delete
} else if currentStorage != nil && currentStorage.CdRom != nil && storage.CloudInit == nil && storage.Disk == nil && storage.Passthrough == nil {
// Delete
return AddToList(delete, string(id))
}
// CloudInit
if storage.CloudInit != nil {
if currentStorage == nil || currentStorage.CloudInit == nil {
// Create
params[string(id)] = storage.CloudInit.mapToApiValues()
} else {
// Update
cloudInit := storage.CloudInit.mapToApiValues()
if cloudInit != currentStorage.CloudInit.mapToApiValues() {
params[string(id)] = cloudInit
}
}
return delete
} else if currentStorage != nil && currentStorage.CloudInit != nil && storage.Disk == nil && storage.Passthrough == nil {
// Delete
return AddToList(delete, string(id))
}
// Disk
if storage.Disk != nil {
if currentStorage == nil || currentStorage.Disk == nil {
// Create
params[string(id)] = storage.Disk.mapToApiValues(vmID, 0, "", "", false, true)
} else {
if storage.Disk.SizeInKibibytes >= currentStorage.Disk.SizeInKibibytes {
// Update
storage.Disk.Id = currentStorage.Disk.Id
storage.Disk.LinkedDiskId = currentStorage.Disk.LinkedDiskId
disk := storage.Disk.mapToApiValues(vmID, linkedVmId, currentStorage.Disk.Storage, currentStorage.Disk.Format, currentStorage.Disk.fileSyntax, false)
if disk != currentStorage.Disk.mapToApiValues(vmID, linkedVmId, currentStorage.Disk.Storage, currentStorage.Disk.Format, currentStorage.Disk.fileSyntax, false) {
params[string(id)] = disk
}
} else {
// Delete and Create
// creating a disk on top of an existing disk is the same as detaching the disk and creating a new one.
params[string(id)] = storage.Disk.mapToApiValues(vmID, 0, "", "", false, true)
}
}
return delete
} else if currentStorage != nil && currentStorage.Disk != nil && storage.Passthrough == nil {
// Delete
return AddToList(delete, string(id))