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/*
Copyright (c) 2015-2017 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 vm
import (
"context"
"flag"
"fmt"
"reflect"
"strings"
"github.com/vmware/govmomi/govc/cli"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/vim25/types"
)
type extraConfig []types.BaseOptionValue
func (e *extraConfig) String() string {
return fmt.Sprintf("%v", *e)
}
func (e *extraConfig) Set(v string) error {
r := strings.SplitN(v, "=", 2)
if len(r) < 2 {
return fmt.Errorf("failed to parse extraConfig: %s", v)
}
*e = append(*e, &types.OptionValue{Key: r[0], Value: r[1]})
return nil
}
type change struct {
*flags.VirtualMachineFlag
*flags.ResourceAllocationFlag
types.VirtualMachineConfigSpec
extraConfig extraConfig
Latency string
}
func init() {
cli.Register("vm.change", &change{})
}
var latencyLevels = []string{
string(types.LatencySensitivitySensitivityLevelLow),
string(types.LatencySensitivitySensitivityLevelNormal),
string(types.LatencySensitivitySensitivityLevelHigh),
}
// setLatency validates latency level if set
func (cmd *change) setLatency() error {
if cmd.Latency == "" {
return nil
}
for _, l := range latencyLevels {
if l == cmd.Latency {
cmd.LatencySensitivity = &types.LatencySensitivity{
Level: types.LatencySensitivitySensitivityLevel(cmd.Latency),
}
return nil
}
}
return fmt.Errorf("latency must be one of: %s", strings.Join(latencyLevels, "|"))
}
// setAllocation sets *info=nil if none of the fields have been set.
// We need non-nil fields for use with flag.FlagSet, but we want the
// VirtualMachineConfigSpec fields to be nil if none of the related flags were given.
func setAllocation(info **types.ResourceAllocationInfo) {
r := *info
if r.Shares.Level == "" {
r.Shares = nil
} else {
return
}
if r.Limit != nil {
return
}
if r.Reservation != nil {
return
}
*info = nil
}
func (cmd *change) Register(ctx context.Context, f *flag.FlagSet) {
cmd.VirtualMachineFlag, ctx = flags.NewVirtualMachineFlag(ctx)
cmd.VirtualMachineFlag.Register(ctx, f)
cmd.CpuAllocation = &types.ResourceAllocationInfo{Shares: new(types.SharesInfo)}
cmd.MemoryAllocation = &types.ResourceAllocationInfo{Shares: new(types.SharesInfo)}
cmd.ResourceAllocationFlag = flags.NewResourceAllocationFlag(cmd.CpuAllocation, cmd.MemoryAllocation)
cmd.ResourceAllocationFlag.ExpandableReservation = false
cmd.ResourceAllocationFlag.Register(ctx, f)
f.Int64Var(&cmd.MemoryMB, "m", 0, "Size in MB of memory")
f.Var(flags.NewInt32(&cmd.NumCPUs), "c", "Number of CPUs")
f.StringVar(&cmd.GuestId, "g", "", "Guest OS")
f.StringVar(&cmd.Name, "name", "", "Display name")
f.StringVar(&cmd.Latency, "latency", "", fmt.Sprintf("Latency sensitivity (%s)", strings.Join(latencyLevels, "|")))
f.StringVar(&cmd.Annotation, "annotation", "", "VM description")
f.StringVar(&cmd.Uuid, "uuid", "", "BIOS UUID")
f.Var(&cmd.extraConfig, "e", "ExtraConfig. <key>=<value>")
f.Var(flags.NewOptionalBool(&cmd.NestedHVEnabled), "nested-hv-enabled", "Enable nested hardware-assisted virtualization")
cmd.Tools = &types.ToolsConfigInfo{}
f.Var(flags.NewOptionalBool(&cmd.Tools.SyncTimeWithHost), "sync-time-with-host", "Enable SyncTimeWithHost")
f.Var(flags.NewOptionalBool(&cmd.VPMCEnabled), "vpmc-enabled", "Enable CPU performance counters")
f.Var(flags.NewOptionalBool(&cmd.MemoryHotAddEnabled), "memory-hot-add-enabled", "Enable memory hot add")
f.Var(flags.NewOptionalBool(&cmd.MemoryReservationLockedToMax), "memory-pin", "Reserve all guest memory")
f.Var(flags.NewOptionalBool(&cmd.CpuHotAddEnabled), "cpu-hot-add-enabled", "Enable CPU hot add")
}
func (cmd *change) Description() string {
return `Change VM configuration.
To add ExtraConfig variables that can read within the guest, use the 'guestinfo.' prefix.
Examples:
govc vm.change -vm $vm -mem.reservation 2048
govc vm.change -vm $vm -e smc.present=TRUE -e ich7m.present=TRUE
# Enable both cpu and memory hotplug on a guest:
govc vm.change -vm $vm -cpu-hot-add-enabled -memory-hot-add-enabled
govc vm.change -vm $vm -e guestinfo.vmname $vm
# Read the variable set above inside the guest:
vmware-rpctool "info-get guestinfo.vmname"
govc vm.change -vm $vm -latency high
govc vm.change -vm $vm -latency normal
govc vm.change -vm $vm -uuid 4139c345-7186-4924-a842-36b69a24159b`
}
func (cmd *change) Process(ctx context.Context) error {
if err := cmd.VirtualMachineFlag.Process(ctx); err != nil {
return err
}
return nil
}
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
}
if len(cmd.extraConfig) > 0 {
cmd.VirtualMachineConfigSpec.ExtraConfig = cmd.extraConfig
}
setAllocation(&cmd.CpuAllocation)
setAllocation(&cmd.MemoryAllocation)
if reflect.DeepEqual(cmd.Tools, new(types.ToolsConfigInfo)) {
cmd.Tools = nil // no flags set, avoid sending <tools/> in the request
}
if err = cmd.setLatency(); err != nil {
return err
}
task, err := vm.Reconfigure(ctx, cmd.VirtualMachineConfigSpec)
if err != nil {
return err
}
return task.Wait(ctx)
}
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