github.com/kikitux/packer@v0.10.1-0.20160322154024-6237df566f9f/builder/openstack/step_get_password.go (about)

     1  package openstack
     2  
     3  import (
     4  	"crypto/rsa"
     5  	"fmt"
     6  	"log"
     7  	"time"
     8  
     9  	"github.com/mitchellh/multistep"
    10  	"github.com/mitchellh/packer/helper/communicator"
    11  	"github.com/mitchellh/packer/packer"
    12  	"github.com/rackspace/gophercloud/openstack/compute/v2/servers"
    13  	"golang.org/x/crypto/ssh"
    14  )
    15  
    16  // StepGetPassword reads the password from a booted OpenStack server and sets
    17  // it on the WinRM config.
    18  type StepGetPassword struct {
    19  	Debug bool
    20  	Comm  *communicator.Config
    21  }
    22  
    23  func (s *StepGetPassword) Run(state multistep.StateBag) multistep.StepAction {
    24  	config := state.Get("config").(Config)
    25  	ui := state.Get("ui").(packer.Ui)
    26  
    27  	// Skip if we're not using winrm
    28  	if s.Comm.Type != "winrm" {
    29  		log.Printf("[INFO] Not using winrm communicator, skipping get password...")
    30  		return multistep.ActionContinue
    31  	}
    32  
    33  	// If we already have a password, skip it
    34  	if s.Comm.WinRMPassword != "" {
    35  		ui.Say("Skipping waiting for password since WinRM password set...")
    36  		return multistep.ActionContinue
    37  	}
    38  
    39  	// We need the v2 compute client
    40  	computeClient, err := config.computeV2Client()
    41  	if err != nil {
    42  		err = fmt.Errorf("Error initializing compute client: %s", err)
    43  		state.Put("error", err)
    44  		return multistep.ActionHalt
    45  	}
    46  
    47  	ui.Say("Waiting for password since WinRM password is not set...")
    48  	server := state.Get("server").(*servers.Server)
    49  	var password string
    50  
    51  	privateKey, err := ssh.ParseRawPrivateKey([]byte(state.Get("privateKey").(string)))
    52  	if err != nil {
    53  		err = fmt.Errorf("Error parsing private key: %s", err)
    54  		state.Put("error", err)
    55  		return multistep.ActionHalt
    56  	}
    57  
    58  	for ; password == "" && err == nil; password, err = servers.GetPassword(computeClient, server.ID).ExtractPassword(privateKey.(*rsa.PrivateKey)) {
    59  
    60  		// Check for an interrupt in between attempts.
    61  		if _, ok := state.GetOk(multistep.StateCancelled); ok {
    62  			return multistep.ActionHalt
    63  		}
    64  
    65  		log.Printf("Retrying to get a administrator password evry 5 seconds.")
    66  		time.Sleep(5 * time.Second)
    67  	}
    68  
    69  	ui.Message(fmt.Sprintf("Password retrieved!"))
    70  	s.Comm.WinRMPassword = password
    71  
    72  	// In debug-mode, we output the password
    73  	if s.Debug {
    74  		ui.Message(fmt.Sprintf(
    75  			"Password (since debug is enabled) \"%s\"", s.Comm.WinRMPassword))
    76  	}
    77  
    78  	return multistep.ActionContinue
    79  }
    80  
    81  func (s *StepGetPassword) Cleanup(multistep.StateBag) {}