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/*
Copyright (c) 2017 VMware, Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package disk
import (
"context"
"errors"
"flag"
"fmt"
"strings"
"github.com/vmware/govmomi/govc/cli"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/object"
"github.com/vmware/govmomi/units"
"github.com/vmware/govmomi/vim25/types"
)
type change struct {
*flags.VirtualMachineFlag
name string
key int
label string
filePath string
sharing string
bytes units.ByteSize
mode string
}
func init() {
cli.Register("vm.disk.change", &change{})
}
func (cmd *change) Description() string {
return `Change some properties of a VM's DISK
In particular, you can change the DISK mode, and the size (as long as it is bigger)
Examples:
govc vm.disk.change -vm VM -disk.key 2001 -size 10G
govc vm.disk.change -vm VM -disk.label "BDD disk" -size 10G
govc vm.disk.change -vm VM -disk.name "hard-1000-0" -size 12G
govc vm.disk.change -vm VM -disk.filePath "[DS] VM/VM-1.vmdk" -mode nonpersistent`
}
func (cmd *change) Register(ctx context.Context, f *flag.FlagSet) {
cmd.VirtualMachineFlag, ctx = flags.NewVirtualMachineFlag(ctx)
cmd.VirtualMachineFlag.Register(ctx, f)
err := (&cmd.bytes).Set("0G")
if err != nil {
panic(err)
}
f.Var(&cmd.bytes, "size", "New disk size")
f.StringVar(&cmd.name, "disk.name", "", "Disk name")
f.StringVar(&cmd.label, "disk.label", "", "Disk label")
f.StringVar(&cmd.filePath, "disk.filePath", "", "Disk file name")
f.IntVar(&cmd.key, "disk.key", 0, "Disk unique key")
f.StringVar(&cmd.mode, "mode", "", fmt.Sprintf("Disk mode (%s)", strings.Join(vdmTypes, "|")))
f.StringVar(&cmd.sharing, "sharing", "", fmt.Sprintf("Sharing (%s)", strings.Join(sharing, "|")))
}
func (cmd *change) Process(ctx context.Context) error {
if err := cmd.VirtualMachineFlag.Process(ctx); err != nil {
return err
}
return nil
}
func (cmd *change) FindDisk(ctx context.Context, list object.VirtualDeviceList) (*types.VirtualDisk, error) {
var disks []*types.VirtualDisk
for _, device := range list {
switch md := device.(type) {
case *types.VirtualDisk:
if cmd.CheckDiskProperties(ctx, list.Name(device), md) {
disks = append(disks, md)
}
default:
continue
}
}
switch len(disks) {
case 0:
return nil, errors.New("no disk found using the given values")
case 1:
return disks[0], nil
}
return nil, errors.New("the given disk values match multiple disks")
}
func (cmd *change) CheckDiskProperties(ctx context.Context, name string, disk *types.VirtualDisk) bool {
switch {
case cmd.key != 0 && disk.Key != int32(cmd.key):
fallthrough
case cmd.name != "" && name != cmd.name:
fallthrough
case cmd.label != "" && disk.DeviceInfo.GetDescription().Label != cmd.label:
return false
case cmd.filePath != "":
if b, ok := disk.Backing.(types.BaseVirtualDeviceFileBackingInfo); ok {
if b.GetVirtualDeviceFileBackingInfo().FileName != cmd.filePath {
return false
}
}
}
return true
}
func (cmd *change) setMode(mode *string) {
if cmd.mode != "" {
*mode = cmd.mode
}
}
func (cmd *change) Run(ctx context.Context, f *flag.FlagSet) error {
vm, err := cmd.VirtualMachine()
if err != nil {
return err
}
if vm == nil {
return flag.ErrHelp
}
devices, err := vm.Device(ctx)
if err != nil {
return err
}
editdisk, err := cmd.FindDisk(ctx, devices)
if err != nil {
return err
}
if int64(cmd.bytes) != 0 {
editdisk.CapacityInKB = int64(cmd.bytes) / 1024
}
switch backing := editdisk.Backing.(type) {
case *types.VirtualDiskFlatVer2BackingInfo:
backing.Sharing = cmd.sharing
cmd.setMode(&backing.DiskMode)
case *types.VirtualDiskSeSparseBackingInfo:
cmd.setMode(&backing.DiskMode)
}
spec := types.VirtualMachineConfigSpec{}
config := &types.VirtualDeviceConfigSpec{
Device: editdisk,
Operation: types.VirtualDeviceConfigSpecOperationEdit,
}
config.FileOperation = ""
spec.DeviceChange = append(spec.DeviceChange, config)
task, err := vm.Reconfigure(ctx, spec)
if err != nil {
return err
}
err = task.Wait(ctx)
if err != nil {
return fmt.Errorf("error resizing main disk\nLogged Item: %s", err)
}
return nil
}
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