forked from dougm/govmomi
/
create.go
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/
create.go
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/*
Copyright (c) 2014-2016 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 vm
import (
"flag"
"fmt"
"github.com/vmware/govmomi/govc/cli"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/object"
"github.com/vmware/govmomi/property"
"github.com/vmware/govmomi/units"
"github.com/vmware/govmomi/vim25"
"github.com/vmware/govmomi/vim25/mo"
"github.com/vmware/govmomi/vim25/types"
"golang.org/x/net/context"
)
type create struct {
*flags.ClientFlag
*flags.DatacenterFlag
*flags.DatastoreFlag
*flags.StoragePodFlag
*flags.ResourcePoolFlag
*flags.HostSystemFlag
*flags.NetworkFlag
*flags.FolderFlag
name string
memory int
cpus int
guestID string
link bool
on bool
force bool
controller string
iso string
isoDatastoreFlag *flags.DatastoreFlag
isoDatastore *object.Datastore
disk string
diskDatastoreFlag *flags.DatastoreFlag
diskDatastore *object.Datastore
// Only set if the disk argument is a byte size, which means the disk
// doesn't exist yet and should be created
diskByteSize int64
Client *vim25.Client
Datacenter *object.Datacenter
Datastore *object.Datastore
StoragePod *object.StoragePod
ResourcePool *object.ResourcePool
HostSystem *object.HostSystem
Folder *object.Folder
}
func init() {
cli.Register("vm.create", &create{})
}
func (cmd *create) Register(ctx context.Context, f *flag.FlagSet) {
cmd.ClientFlag, ctx = flags.NewClientFlag(ctx)
cmd.ClientFlag.Register(ctx, f)
cmd.DatacenterFlag, ctx = flags.NewDatacenterFlag(ctx)
cmd.DatacenterFlag.Register(ctx, f)
cmd.DatastoreFlag, ctx = flags.NewDatastoreFlag(ctx)
cmd.DatastoreFlag.Register(ctx, f)
cmd.StoragePodFlag, ctx = flags.NewStoragePodFlag(ctx)
cmd.StoragePodFlag.Register(ctx, f)
cmd.ResourcePoolFlag, ctx = flags.NewResourcePoolFlag(ctx)
cmd.ResourcePoolFlag.Register(ctx, f)
cmd.HostSystemFlag, ctx = flags.NewHostSystemFlag(ctx)
cmd.HostSystemFlag.Register(ctx, f)
cmd.NetworkFlag, ctx = flags.NewNetworkFlag(ctx)
cmd.NetworkFlag.Register(ctx, f)
cmd.FolderFlag, ctx = flags.NewFolderFlag(ctx)
cmd.FolderFlag.Register(ctx, f)
f.IntVar(&cmd.memory, "m", 1024, "Size in MB of memory")
f.IntVar(&cmd.cpus, "c", 1, "Number of CPUs")
f.StringVar(&cmd.guestID, "g", "otherGuest", "Guest OS")
f.BoolVar(&cmd.link, "link", true, "Link specified disk")
f.BoolVar(&cmd.on, "on", true, "Power on VM. Default is true if -disk argument is given.")
f.BoolVar(&cmd.force, "force", false, "Create VM if vmx already exists")
f.StringVar(&cmd.controller, "disk.controller", "scsi", "Disk controller type")
f.StringVar(&cmd.iso, "iso", "", "ISO path")
cmd.isoDatastoreFlag, ctx = flags.NewCustomDatastoreFlag(ctx)
f.StringVar(&cmd.isoDatastoreFlag.Name, "iso-datastore", "", "Datastore for ISO file")
f.StringVar(&cmd.disk, "disk", "", "Disk path (to use existing) OR size (to create new, e.g. 20GB)")
cmd.diskDatastoreFlag, ctx = flags.NewCustomDatastoreFlag(ctx)
f.StringVar(&cmd.diskDatastoreFlag.Name, "disk-datastore", "", "Datastore for disk file")
}
func (cmd *create) Process(ctx context.Context) error {
if err := cmd.ClientFlag.Process(ctx); err != nil {
return err
}
if err := cmd.DatacenterFlag.Process(ctx); err != nil {
return err
}
if err := cmd.DatastoreFlag.Process(ctx); err != nil {
return err
}
if err := cmd.StoragePodFlag.Process(ctx); err != nil {
return err
}
if err := cmd.ResourcePoolFlag.Process(ctx); err != nil {
return err
}
if err := cmd.HostSystemFlag.Process(ctx); err != nil {
return err
}
if err := cmd.NetworkFlag.Process(ctx); err != nil {
return err
}
if err := cmd.FolderFlag.Process(ctx); err != nil {
return err
}
// Default iso/disk datastores to the VM's datastore
if cmd.isoDatastoreFlag.Name == "" {
cmd.isoDatastoreFlag = cmd.DatastoreFlag
}
if cmd.diskDatastoreFlag.Name == "" {
cmd.diskDatastoreFlag = cmd.DatastoreFlag
}
return nil
}
func (cmd *create) Run(ctx context.Context, f *flag.FlagSet) error {
var err error
if len(f.Args()) != 1 {
return flag.ErrHelp
}
cmd.name = f.Arg(0)
if cmd.name == "" {
return flag.ErrHelp
}
cmd.Client, err = cmd.ClientFlag.Client()
if err != nil {
return err
}
cmd.Datacenter, err = cmd.DatacenterFlag.Datacenter()
if err != nil {
return err
}
if cmd.StoragePodFlag.Isset() {
cmd.StoragePod, err = cmd.StoragePodFlag.StoragePod()
if err != nil {
return err
}
} else {
cmd.Datastore, err = cmd.DatastoreFlag.Datastore()
if err != nil {
return err
}
}
cmd.HostSystem, err = cmd.HostSystemFlag.HostSystemIfSpecified()
if err != nil {
return err
}
if cmd.HostSystem != nil {
if cmd.ResourcePool, err = cmd.HostSystem.ResourcePool(context.TODO()); err != nil {
return err
}
} else {
// -host is optional
if cmd.ResourcePool, err = cmd.ResourcePoolFlag.ResourcePool(); err != nil {
return err
}
}
if cmd.Folder, err = cmd.FolderFlag.Folder(); err != nil {
return err
}
// Verify ISO exists
if cmd.iso != "" {
_, err = cmd.isoDatastoreFlag.Stat(context.TODO(), cmd.iso)
if err != nil {
return err
}
cmd.isoDatastore, err = cmd.isoDatastoreFlag.Datastore()
if err != nil {
return err
}
}
// Verify disk exists
if cmd.disk != "" {
var b units.ByteSize
// If disk can be parsed as byte units, don't stat
err = b.Set(cmd.disk)
if err == nil {
cmd.diskByteSize = int64(b)
} else {
_, err = cmd.diskDatastoreFlag.Stat(context.TODO(), cmd.disk)
if err != nil {
return err
}
cmd.diskDatastore, err = cmd.diskDatastoreFlag.Datastore()
if err != nil {
return err
}
}
}
task, err := cmd.createVM(context.TODO())
if err != nil {
return err
}
info, err := task.WaitForResult(context.TODO(), nil)
if err != nil {
return err
}
vm := object.NewVirtualMachine(cmd.Client, info.Result.(types.ManagedObjectReference))
if cmd.on {
task, err := vm.PowerOn(context.TODO())
if err != nil {
return err
}
_, err = task.WaitForResult(context.TODO(), nil)
if err != nil {
return err
}
}
return nil
}
func (cmd *create) createVM(ctx context.Context) (*object.Task, error) {
var devices object.VirtualDeviceList
var err error
spec := &types.VirtualMachineConfigSpec{
Name: cmd.name,
GuestId: cmd.guestID,
NumCPUs: int32(cmd.cpus),
MemoryMB: int64(cmd.memory),
}
devices, err = cmd.addStorage(nil)
if err != nil {
return nil, err
}
devices, err = cmd.addNetwork(devices)
if err != nil {
return nil, err
}
deviceChange, err := devices.ConfigSpec(types.VirtualDeviceConfigSpecOperationAdd)
if err != nil {
return nil, err
}
spec.DeviceChange = deviceChange
var datastore *object.Datastore
// If storage pod is specified, collect placement recommendations
if cmd.StoragePod != nil {
datastore, err = cmd.recommendDatastore(ctx, spec)
if err != nil {
return nil, err
}
} else {
datastore = cmd.Datastore
}
if !cmd.force {
vmxPath := fmt.Sprintf("%s/%s.vmx", cmd.name, cmd.name)
_, err := datastore.Stat(ctx, vmxPath)
if err == nil {
dsPath := cmd.Datastore.Path(vmxPath)
return nil, fmt.Errorf("File %s already exists", dsPath)
}
}
folder := cmd.Folder
spec.Files = &types.VirtualMachineFileInfo{
VmPathName: fmt.Sprintf("[%s]", datastore.Name()),
}
return folder.CreateVM(ctx, *spec, cmd.ResourcePool, cmd.HostSystem)
}
func (cmd *create) addStorage(devices object.VirtualDeviceList) (object.VirtualDeviceList, error) {
if cmd.controller != "ide" {
scsi, err := devices.CreateSCSIController(cmd.controller)
if err != nil {
return nil, err
}
devices = append(devices, scsi)
}
// If controller is specified to be IDE or if an ISO is specified, add IDE controller.
if cmd.controller == "ide" || cmd.iso != "" {
ide, err := devices.CreateIDEController()
if err != nil {
return nil, err
}
devices = append(devices, ide)
}
if cmd.diskByteSize != 0 {
controller, err := devices.FindDiskController(cmd.controller)
if err != nil {
return nil, err
}
disk := &types.VirtualDisk{
VirtualDevice: types.VirtualDevice{
Key: devices.NewKey(),
Backing: &types.VirtualDiskFlatVer2BackingInfo{
DiskMode: string(types.VirtualDiskModePersistent),
ThinProvisioned: types.NewBool(true),
},
},
CapacityInKB: cmd.diskByteSize / 1024,
}
devices.AssignController(disk, controller)
devices = append(devices, disk)
} else if cmd.disk != "" {
controller, err := devices.FindDiskController(cmd.controller)
if err != nil {
return nil, err
}
ds := cmd.diskDatastore.Reference()
path := cmd.diskDatastore.Path(cmd.disk)
disk := devices.CreateDisk(controller, ds, path)
if cmd.link {
disk = devices.ChildDisk(disk)
}
devices = append(devices, disk)
}
if cmd.iso != "" {
ide, err := devices.FindIDEController("")
if err != nil {
return nil, err
}
cdrom, err := devices.CreateCdrom(ide)
if err != nil {
return nil, err
}
cdrom = devices.InsertIso(cdrom, cmd.isoDatastore.Path(cmd.iso))
devices = append(devices, cdrom)
}
return devices, nil
}
func (cmd *create) addNetwork(devices object.VirtualDeviceList) (object.VirtualDeviceList, error) {
netdev, err := cmd.NetworkFlag.Device()
if err != nil {
return nil, err
}
devices = append(devices, netdev)
return devices, nil
}
func (cmd *create) recommendDatastore(ctx context.Context, spec *types.VirtualMachineConfigSpec) (*object.Datastore, error) {
sp := cmd.StoragePod.Reference()
// Build pod selection spec from config spec
podSelectionSpec := types.StorageDrsPodSelectionSpec{
StoragePod: &sp,
}
// Keep list of disks that need to be placed
var disks []*types.VirtualDisk
// Collect disks eligible for placement
for _, deviceConfigSpec := range spec.DeviceChange {
s := deviceConfigSpec.GetVirtualDeviceConfigSpec()
if s.Operation != types.VirtualDeviceConfigSpecOperationAdd {
continue
}
if s.FileOperation != types.VirtualDeviceConfigSpecFileOperationCreate {
continue
}
d, ok := s.Device.(*types.VirtualDisk)
if !ok {
continue
}
podConfigForPlacement := types.VmPodConfigForPlacement{
StoragePod: sp,
Disk: []types.PodDiskLocator{
{
DiskId: d.Key,
DiskBackingInfo: d.Backing,
},
},
}
podSelectionSpec.InitialVmConfig = append(podSelectionSpec.InitialVmConfig, podConfigForPlacement)
disks = append(disks, d)
}
sps := types.StoragePlacementSpec{
Type: string(types.StoragePlacementSpecPlacementTypeCreate),
ResourcePool: types.NewReference(cmd.ResourcePool.Reference()),
PodSelectionSpec: podSelectionSpec,
ConfigSpec: spec,
}
srm := object.NewStorageResourceManager(cmd.Client)
result, err := srm.RecommendDatastores(ctx, sps)
if err != nil {
return nil, err
}
// Use result to pin disks to recommended datastores
recs := result.Recommendations
if len(recs) == 0 {
return nil, fmt.Errorf("no recommendations")
}
ds := recs[0].Action[0].(*types.StoragePlacementAction).Destination
var mds mo.Datastore
err = property.DefaultCollector(cmd.Client).RetrieveOne(ctx, ds, []string{"name"}, &mds)
if err != nil {
return nil, err
}
datastore := object.NewDatastore(cmd.Client, ds)
datastore.InventoryPath = mds.Name
// Apply recommendation to eligible disks
for _, disk := range disks {
backing := disk.Backing.(*types.VirtualDiskFlatVer2BackingInfo)
backing.Datastore = &ds
}
return datastore, nil
}