104 lines
2.4 KiB
Go
104 lines
2.4 KiB
Go
package main
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import (
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"github.com/mitchellh/multistep"
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"github.com/hashicorp/packer/packer"
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"github.com/vmware/govmomi/object"
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"context"
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"fmt"
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"log"
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"time"
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"bytes"
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"errors"
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)
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type ShutdownConfig struct {
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Command string `mapstructure:"shutdown_command"`
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RawTimeout string `mapstructure:"shutdown_timeout"`
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Timeout time.Duration
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}
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func (c *ShutdownConfig) Prepare() []error {
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var errs []error
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if c.RawTimeout != "" {
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timeout, err := time.ParseDuration(c.RawTimeout)
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if err != nil {
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errs = append(errs, fmt.Errorf("Failed parsing shutdown_timeout: %s", err))
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return errs
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}
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c.Timeout = timeout
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} else {
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c.Timeout = 5 * time.Minute
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}
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return nil
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}
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type StepShutdown struct {
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config *ShutdownConfig
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}
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func (s *StepShutdown) Run(state multistep.StateBag) multistep.StepAction {
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// is set during the communicator.StepConnect
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comm := state.Get("communicator").(packer.Communicator)
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ui := state.Get("ui").(packer.Ui)
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vm := state.Get("vm").(*object.VirtualMachine)
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ctx := state.Get("ctx").(context.Context)
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ui.Say("Shut down VM...")
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if s.config.Command != "" {
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ui.Say("Gracefully halting virtual machine...")
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log.Printf("Executing shutdown command: %s", s.config.Command)
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var stdout, stderr bytes.Buffer
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cmd := &packer.RemoteCmd{
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Command: s.config.Command,
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Stdout: &stdout,
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Stderr: &stderr,
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}
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if err := comm.Start(cmd); err != nil {
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state.Put("error", fmt.Errorf("Failed to send shutdown command: %s", err))
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return multistep.ActionHalt
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}
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} else {
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ui.Say("Forcibly halting virtual machine...")
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err := vm.ShutdownGuest(ctx)
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if err != nil {
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state.Put("error", fmt.Errorf("Cannot shut down VM: %v", err))
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return multistep.ActionHalt
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}
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}
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// Wait for the machine to actually shut down
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log.Printf("Waiting max %s for shutdown to complete", s.config.Timeout)
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shutdownTimer := time.After(s.config.Timeout)
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for {
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powerState, err := vm.PowerState(ctx)
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if err != nil {
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state.Put("error", err)
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return multistep.ActionHalt
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}
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if powerState == "poweredOff" {
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break
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}
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select {
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case <-shutdownTimer:
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err := errors.New("Timeout while waiting for machine to shut down.")
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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default:
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time.Sleep(150 * time.Millisecond)
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}
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}
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ui.Say("VM stopped")
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return multistep.ActionContinue
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}
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func (s *StepShutdown) Cleanup(state multistep.StateBag) {}
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