github.com/amanya/packer@v0.12.1-0.20161117214323-902ac5ab2eb6/builder/googlecompute/step_instance_info.go (about)

     1  package googlecompute
     2  
     3  import (
     4  	"errors"
     5  	"fmt"
     6  	"time"
     7  
     8  	"github.com/mitchellh/multistep"
     9  	"github.com/mitchellh/packer/packer"
    10  )
    11  
    12  // stepInstanceInfo represents a Packer build step that gathers GCE instance info.
    13  type StepInstanceInfo struct {
    14  	Debug bool
    15  
    16  	info int
    17  }
    18  
    19  // Run executes the Packer build step that gathers GCE instance info.
    20  // This adds "instance_ip" to the multistep state.
    21  func (s *StepInstanceInfo) Run(state multistep.StateBag) multistep.StepAction {
    22  	config := state.Get("config").(*Config)
    23  	driver := state.Get("driver").(Driver)
    24  	ui := state.Get("ui").(packer.Ui)
    25  
    26  	instanceName := state.Get("instance_name").(string)
    27  
    28  	ui.Say("Waiting for the instance to become running...")
    29  	errCh := driver.WaitForInstance("RUNNING", config.Zone, instanceName)
    30  	var err error
    31  	select {
    32  	case err = <-errCh:
    33  	case <-time.After(config.stateTimeout):
    34  		err = errors.New("time out while waiting for instance to become running")
    35  	}
    36  
    37  	if err != nil {
    38  		err := fmt.Errorf("Error waiting for instance: %s", err)
    39  		state.Put("error", err)
    40  		ui.Error(err.Error())
    41  		return multistep.ActionHalt
    42  	}
    43  
    44  	if config.UseInternalIP {
    45  		ip, err := driver.GetInternalIP(config.Zone, instanceName)
    46  		if err != nil {
    47  			err := fmt.Errorf("Error retrieving instance internal ip address: %s", err)
    48  			state.Put("error", err)
    49  			ui.Error(err.Error())
    50  			return multistep.ActionHalt
    51  		}
    52  
    53  		if s.Debug {
    54  			if ip != "" {
    55  				ui.Message(fmt.Sprintf("Internal IP: %s", ip))
    56  			}
    57  		}
    58  		ui.Message(fmt.Sprintf("IP: %s", ip))
    59  		state.Put("instance_ip", ip)
    60  		return multistep.ActionContinue
    61  	} else {
    62  		ip, err := driver.GetNatIP(config.Zone, instanceName)
    63  		if err != nil {
    64  			err := fmt.Errorf("Error retrieving instance nat ip address: %s", err)
    65  			state.Put("error", err)
    66  			ui.Error(err.Error())
    67  			return multistep.ActionHalt
    68  		}
    69  
    70  		if s.Debug {
    71  			if ip != "" {
    72  				ui.Message(fmt.Sprintf("Public IP: %s", ip))
    73  			}
    74  		}
    75  		ui.Message(fmt.Sprintf("IP: %s", ip))
    76  		state.Put("instance_ip", ip)
    77  		return multistep.ActionContinue
    78  	}
    79  }
    80  
    81  // Cleanup.
    82  func (s *StepInstanceInfo) Cleanup(state multistep.StateBag) {}