github.com/askholme/packer@v0.7.2-0.20140924152349-70d9566a6852/builder/openstack/step_key_pair.go (about)

     1  package openstack
     2  
     3  import (
     4  	"fmt"
     5  	"github.com/mitchellh/multistep"
     6  	"github.com/mitchellh/packer/common/uuid"
     7  	"github.com/mitchellh/packer/packer"
     8  	"github.com/rackspace/gophercloud"
     9  	"log"
    10  	"os"
    11  	"runtime"
    12  )
    13  
    14  type StepKeyPair struct {
    15  	Debug        bool
    16  	DebugKeyPath string
    17  	keyName      string
    18  }
    19  
    20  func (s *StepKeyPair) Run(state multistep.StateBag) multistep.StepAction {
    21  	csp := state.Get("csp").(gophercloud.CloudServersProvider)
    22  	ui := state.Get("ui").(packer.Ui)
    23  
    24  	ui.Say("Creating temporary keypair for this instance...")
    25  	keyName := fmt.Sprintf("packer %s", uuid.TimeOrderedUUID())
    26  	log.Printf("temporary keypair name: %s", keyName)
    27  	keyResp, err := csp.CreateKeyPair(gophercloud.NewKeyPair{Name: keyName})
    28  	if err != nil {
    29  		state.Put("error", fmt.Errorf("Error creating temporary keypair: %s", err))
    30  		return multistep.ActionHalt
    31  	}
    32  	if keyResp.PrivateKey == "" {
    33  		state.Put("error", fmt.Errorf("The temporary keypair returned was blank"))
    34  		return multistep.ActionHalt
    35  	}
    36  
    37  	// If we're in debug mode, output the private key to the working
    38  	// directory.
    39  	if s.Debug {
    40  		ui.Message(fmt.Sprintf("Saving key for debug purposes: %s", s.DebugKeyPath))
    41  		f, err := os.Create(s.DebugKeyPath)
    42  		if err != nil {
    43  			state.Put("error", fmt.Errorf("Error saving debug key: %s", err))
    44  			return multistep.ActionHalt
    45  		}
    46  		defer f.Close()
    47  
    48  		// Write the key out
    49  		if _, err := f.Write([]byte(keyResp.PrivateKey)); err != nil {
    50  			state.Put("error", fmt.Errorf("Error saving debug key: %s", err))
    51  			return multistep.ActionHalt
    52  		}
    53  
    54  		// Chmod it so that it is SSH ready
    55  		if runtime.GOOS != "windows" {
    56  			if err := f.Chmod(0600); err != nil {
    57  				state.Put("error", fmt.Errorf("Error setting permissions of debug key: %s", err))
    58  				return multistep.ActionHalt
    59  			}
    60  		}
    61  	}
    62  
    63  	// Set the keyname so we know to delete it later
    64  	s.keyName = keyName
    65  
    66  	// Set some state data for use in future steps
    67  	state.Put("keyPair", keyName)
    68  	state.Put("privateKey", keyResp.PrivateKey)
    69  
    70  	return multistep.ActionContinue
    71  }
    72  
    73  func (s *StepKeyPair) Cleanup(state multistep.StateBag) {
    74  	// If no key name is set, then we never created it, so just return
    75  	if s.keyName == "" {
    76  		return
    77  	}
    78  
    79  	csp := state.Get("csp").(gophercloud.CloudServersProvider)
    80  	ui := state.Get("ui").(packer.Ui)
    81  
    82  	ui.Say("Deleting temporary keypair...")
    83  	err := csp.DeleteKeyPair(s.keyName)
    84  	if err != nil {
    85  		ui.Error(fmt.Sprintf(
    86  			"Error cleaning up keypair. Please delete the key manually: %s", s.keyName))
    87  	}
    88  }