packer-cn/step_shutdown.go
Elizaveta Tretyakova b2c6e44c70 Builder (#2)
* the very initial builder: just clones the VM

* removed post-processor

* builder now waits for IP address

* more separated steps

* clean up

* added run and shutdown steps

* added step connecting via ssh

* changed the BuilderId to a proper one

* added shutdown command, only echo works

* added cleanup

* removed wainting for VM to stop, removed error on the non-zero exit status

* removed BuildSuccessFlag

* refactored config structures; fixed interpolation of json template

* the rest of configuration refactoring

* removed duplicated parameters from Config

* removed duplicated parameters drom Config

* changed BuilderId and Artifact

* create a dedicated step for VM hardware configuration

* merged StepSetupCloningEnv into StepCloneVM

* improved cleanup

* added proper handling of 'disconnected' command exit status; added guest os shutdown before halting the machine [in case when no shutdown command is given]

* refactored non-conventional variable and field names

* removed redundant fields from Artifact

* removed the success field at all

* removed ArtifactFiles

* removed unnecessary warnings

* minor change in parameters structure
2017-05-09 17:23:57 +03:00

84 lines
1.9 KiB
Go

package main
import (
"github.com/mitchellh/multistep"
"github.com/hashicorp/packer/packer"
"github.com/vmware/govmomi/object"
"context"
"fmt"
"log"
"time"
"bytes"
)
type StepShutdown struct{
Command string
}
func (s *StepShutdown) Run(state multistep.StateBag) multistep.StepAction {
// is set during the communicator.StepConnect
comm := state.Get("communicator").(packer.Communicator)
ui := state.Get("ui").(packer.Ui)
vm := state.Get("vm").(*object.VirtualMachine)
ctx := state.Get("ctx").(context.Context)
ui.Say("VM shutdown...")
if s.Command != "" {
ui.Say("Gracefully halting virtual machine...")
log.Printf("Executing shutdown command: %s", s.Command)
var stdout, stderr bytes.Buffer
cmd := &packer.RemoteCmd{
Command: s.Command,
Stdout: &stdout,
Stderr: &stderr,
}
if err := comm.Start(cmd); err != nil {
err := fmt.Errorf("Failed to send shutdown command: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// TODO: add timeout
for !cmd.Exited {
ui.Say("Waiting for remote cmd to finish...")
time.Sleep(150 * time.Millisecond)
}
if cmd.ExitStatus != 0 && cmd.ExitStatus != packer.CmdDisconnect {
err := fmt.Errorf("Cmd exit status %v, not 0", cmd.ExitStatus)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
} else if cmd.ExitStatus == packer.CmdDisconnect {
ui.Say("VM disconnected")
}
} else {
ui.Say("Forcibly halting virtual machine...")
err := vm.ShutdownGuest(ctx)
if err != nil {
state.Put("error", err)
return multistep.ActionHalt
}
task, err := vm.PowerOff(ctx)
if err != nil {
state.Put("error", err)
return multistep.ActionHalt
}
_, err = task.WaitForResult(ctx, nil)
if err != nil {
state.Put("error", err)
return multistep.ActionHalt
}
}
ui.Say("VM stopped")
return multistep.ActionContinue
}
func (s *StepShutdown) Cleanup(state multistep.StateBag) {}