130 lines
3.4 KiB
Go
130 lines
3.4 KiB
Go
package openstack
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import (
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"fmt"
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"io/ioutil"
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"os"
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"runtime"
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"github.com/mitchellh/multistep"
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"github.com/mitchellh/packer/common/uuid"
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"github.com/mitchellh/packer/packer"
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"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/keypairs"
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)
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type StepKeyPair struct {
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Debug bool
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DebugKeyPath string
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KeyPairName string
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PrivateKeyFile string
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keyName string
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}
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func (s *StepKeyPair) Run(state multistep.StateBag) multistep.StepAction {
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if s.PrivateKeyFile != "" {
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privateKeyBytes, err := ioutil.ReadFile(s.PrivateKeyFile)
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if err != nil {
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state.Put("error", fmt.Errorf(
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"Error loading configured private key file: %s", err))
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return multistep.ActionHalt
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}
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state.Put("keyPair", s.KeyPairName)
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state.Put("privateKey", string(privateKeyBytes))
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return multistep.ActionContinue
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}
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config := state.Get("config").(Config)
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ui := state.Get("ui").(packer.Ui)
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// We need the v2 compute client
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computeClient, err := config.computeV2Client()
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if err != nil {
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err = fmt.Errorf("Error initializing compute client: %s", err)
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state.Put("error", err)
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return multistep.ActionHalt
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}
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ui.Say("Creating temporary keypair for this instance...")
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keyName := fmt.Sprintf("packer %s", uuid.TimeOrderedUUID())
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keypair, err := keypairs.Create(computeClient, keypairs.CreateOpts{
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Name: keyName,
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}).Extract()
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if err != nil {
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state.Put("error", fmt.Errorf("Error creating temporary keypair: %s", err))
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return multistep.ActionHalt
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}
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if keypair.PrivateKey == "" {
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state.Put("error", fmt.Errorf("The temporary keypair returned was blank"))
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return multistep.ActionHalt
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}
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// If we're in debug mode, output the private key to the working
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// directory.
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if s.Debug {
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ui.Message(fmt.Sprintf("Saving key for debug purposes: %s", s.DebugKeyPath))
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f, err := os.Create(s.DebugKeyPath)
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if err != nil {
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state.Put("error", fmt.Errorf("Error saving debug key: %s", err))
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return multistep.ActionHalt
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}
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defer f.Close()
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// Write the key out
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if _, err := f.Write([]byte(keypair.PrivateKey)); err != nil {
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state.Put("error", fmt.Errorf("Error saving debug key: %s", err))
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return multistep.ActionHalt
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}
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// Chmod it so that it is SSH ready
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if runtime.GOOS != "windows" {
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if err := f.Chmod(0600); err != nil {
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state.Put("error", fmt.Errorf("Error setting permissions of debug key: %s", err))
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return multistep.ActionHalt
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}
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}
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}
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// Set the keyname so we know to delete it later
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s.keyName = keyName
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// Set some state data for use in future steps
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state.Put("keyPair", keyName)
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state.Put("privateKey", keypair.PrivateKey)
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return multistep.ActionContinue
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}
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func (s *StepKeyPair) Cleanup(state multistep.StateBag) {
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// If we used an SSH private key file, do not go about deleting
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// keypairs
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if s.PrivateKeyFile != "" {
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return
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}
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// If no key name is set, then we never created it, so just return
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if s.keyName == "" {
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return
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}
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config := state.Get("config").(Config)
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ui := state.Get("ui").(packer.Ui)
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// We need the v2 compute client
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computeClient, err := config.computeV2Client()
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if err != nil {
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ui.Error(fmt.Sprintf(
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"Error cleaning up keypair. Please delete the key manually: %s", s.keyName))
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return
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}
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ui.Say("Deleting temporary keypair...")
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err = keypairs.Delete(computeClient, s.keyName).ExtractErr()
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if err != nil {
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ui.Error(fmt.Sprintf(
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"Error cleaning up keypair. Please delete the key manually: %s", s.keyName))
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}
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}
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