package googlecompute import ( "errors" "fmt" "time" "github.com/hashicorp/packer/packer" "github.com/mitchellh/multistep" ) // StepCreateImage represents a Packer build step that creates GCE machine // images. type StepCreateImage int // Run executes the Packer build step that creates a GCE machine image. // // The image is created from the persistent disk used by the instance. The // instance must be deleted and the disk retained before doing this step. func (s *StepCreateImage) Run(state multistep.StateBag) multistep.StepAction { config := state.Get("config").(*Config) driver := state.Get("driver").(Driver) ui := state.Get("ui").(packer.Ui) if config.PackerForce && config.imageAlreadyExists { ui.Say("Deleting previous image...") errCh := driver.DeleteImage(config.ImageName) err := <-errCh if err != nil { err := fmt.Errorf("Error deleting image: %s", err) state.Put("error", err) ui.Error(err.Error()) return multistep.ActionHalt } } ui.Say("Creating image...") imageCh, errCh := driver.CreateImage( config.ImageName, config.ImageDescription, config.ImageFamily, config.Zone, config.DiskName) var err error select { case err = <-errCh: case <-time.After(config.stateTimeout): err = errors.New("time out while waiting for image to register") } if err != nil { err := fmt.Errorf("Error waiting for image: %s", err) state.Put("error", err) ui.Error(err.Error()) return multistep.ActionHalt } state.Put("image", <-imageCh) return multistep.ActionContinue } // Cleanup. func (s *StepCreateImage) Cleanup(state multistep.StateBag) {}