packer-cn/builder/docker/step_temp_dir.go

42 lines
950 B
Go

package docker
import (
"context"
"fmt"
"os"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/packer/tmp"
)
// StepTempDir creates a temporary directory that we use in order to
// share data with the docker container over the communicator.
type StepTempDir struct {
tempDir string
}
func (s *StepTempDir) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
ui := state.Get("ui").(packer.Ui)
ui.Say("Creating a temporary directory for sharing data...")
tempdir, err := tmp.Dir("packer-docker")
if err != nil {
err := fmt.Errorf("Error making temp dir: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
s.tempDir = tempdir
state.Put("temp_dir", s.tempDir)
return multistep.ActionContinue
}
func (s *StepTempDir) Cleanup(state multistep.StateBag) {
if s.tempDir != "" {
os.RemoveAll(s.tempDir)
}
}