136 lines
3.4 KiB
Go
136 lines
3.4 KiB
Go
package vmware
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import (
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"bytes"
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"errors"
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"fmt"
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"github.com/mitchellh/multistep"
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"github.com/mitchellh/packer/packer"
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"log"
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"path/filepath"
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"runtime"
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"strings"
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"time"
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)
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// This step shuts down the machine. It first attempts to do so gracefully,
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// but ultimately forcefully shuts it down if that fails.
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//
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// Uses:
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// communicator packer.Communicator
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// config *config
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// driver Driver
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// ui packer.Ui
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// vmx_path string
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//
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// Produces:
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// <nothing>
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type stepShutdown struct{}
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func (s *stepShutdown) Run(state map[string]interface{}) multistep.StepAction {
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comm := state["communicator"].(packer.Communicator)
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config := state["config"].(*config)
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driver := state["driver"].(Driver)
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ui := state["ui"].(packer.Ui)
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vmxPath := state["vmx_path"].(string)
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if config.ShutdownCommand != "" {
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ui.Say("Gracefully halting virtual machine...")
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log.Printf("Executing shutdown command: %s", config.ShutdownCommand)
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var stdout, stderr bytes.Buffer
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cmd := &packer.RemoteCmd{
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Command: config.ShutdownCommand,
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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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err := fmt.Errorf("Failed to send shutdown command: %s", err)
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state["error"] = err
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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// Wait for the command to run
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cmd.Wait()
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// If the command failed to run, notify the user in some way.
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if cmd.ExitStatus != 0 {
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state["error"] = fmt.Errorf(
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"Shutdown command has non-zero exit status.\n\nStdout: %s\n\nStderr: %s",
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stdout.String(), stderr.String())
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return multistep.ActionHalt
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}
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log.Printf("Shutdown stdout: %s", stdout.String())
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log.Printf("Shutdown stderr: %s", stderr.String())
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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", config.shutdownTimeout)
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shutdownTimer := time.After(config.shutdownTimeout)
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for {
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running, _ := driver.IsRunning(vmxPath)
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if !running {
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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["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(1 * time.Second)
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}
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}
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} else {
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if err := driver.Stop(vmxPath); err != nil {
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err := fmt.Errorf("Error stopping VM: %s", err)
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state["error"] = err
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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}
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ui.Message("Waiting for VMware to clean up after itself...")
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lockPattern := filepath.Join(config.OutputDir, "*.lck")
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timer := time.After(15 * time.Second)
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LockWaitLoop:
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for {
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locks, err := filepath.Glob(lockPattern)
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if err == nil {
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if len(locks) == 0 {
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log.Println("No more lock files found. VMware is clean.")
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break
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}
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if len(locks) == 1 && strings.HasSuffix(locks[0], ".vmx.lck") {
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log.Println("Only waiting on VMX lock. VMware is clean.")
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break
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}
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log.Printf("Waiting on lock files: %#v", locks)
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}
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select {
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case <-timer:
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log.Println("Reached timeout on waiting for clean VMware. Assuming clean.")
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break LockWaitLoop
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case <-time.After(1 * time.Second):
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}
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}
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if runtime.GOOS == "windows" {
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// Windows takes a while to yield control of the files when the
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// process is exiting. We just sleep here. In the future, it'd be
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// nice to find a better solution to this.
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time.Sleep(5 * time.Second)
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}
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log.Println("VM shut down.")
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return multistep.ActionContinue
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}
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func (s *stepShutdown) Cleanup(state map[string]interface{}) {}
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