137 lines
3.8 KiB
Go
137 lines
3.8 KiB
Go
package ecs
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import (
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"context"
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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/denverdino/aliyungo/common"
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"github.com/denverdino/aliyungo/ecs"
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"github.com/hashicorp/packer/helper/communicator"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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)
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type stepConfigAlicloudKeyPair struct {
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Debug bool
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Comm *communicator.Config
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DebugKeyPath string
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RegionId string
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keyName string
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}
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func (s *stepConfigAlicloudKeyPair) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
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ui := state.Get("ui").(packer.Ui)
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if s.Comm.SSHPrivateKeyFile != "" {
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ui.Say("Using existing SSH private key")
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privateKeyBytes, err := ioutil.ReadFile(s.Comm.SSHPrivateKeyFile)
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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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s.Comm.SSHPrivateKey = privateKeyBytes
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return multistep.ActionContinue
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}
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if s.Comm.SSHAgentAuth && s.Comm.SSHKeyPairName == "" {
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ui.Say("Using SSH Agent with key pair in source image")
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return multistep.ActionContinue
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}
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if s.Comm.SSHAgentAuth && s.Comm.SSHKeyPairName != "" {
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ui.Say(fmt.Sprintf("Using SSH Agent for existing key pair %s", s.Comm.SSHKeyPairName))
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return multistep.ActionContinue
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}
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if s.Comm.SSHTemporaryKeyPairName == "" {
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ui.Say("Not using temporary keypair")
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s.Comm.SSHKeyPairName = ""
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return multistep.ActionContinue
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}
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client := state.Get("client").(*ecs.Client)
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ui.Say(fmt.Sprintf("Creating temporary keypair: %s", s.Comm.SSHTemporaryKeyPairName))
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keyResp, err := client.CreateKeyPair(&ecs.CreateKeyPairArgs{
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KeyPairName: s.Comm.SSHTemporaryKeyPairName,
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RegionId: common.Region(s.RegionId),
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})
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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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// Set the keyname so we know to delete it later
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s.keyName = s.Comm.SSHTemporaryKeyPairName
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// Set some state data for use in future steps
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s.Comm.SSHKeyPairName = s.keyName
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s.Comm.SSHPrivateKey = []byte(keyResp.PrivateKeyBody)
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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(keyResp.PrivateKeyBody)); 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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return multistep.ActionContinue
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}
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func (s *stepConfigAlicloudKeyPair) Cleanup(state multistep.StateBag) {
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// If no key name is set, then we never created it, so just return
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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.Comm.SSHPrivateKeyFile != "" || (s.Comm.SSHKeyPairName == "" && s.keyName == "") {
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return
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}
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client := state.Get("client").(*ecs.Client)
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ui := state.Get("ui").(packer.Ui)
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// Remove the keypair
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ui.Say("Deleting temporary keypair...")
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err := client.DeleteKeyPairs(&ecs.DeleteKeyPairsArgs{
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RegionId: common.Region(s.RegionId),
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KeyPairNames: "[\"" + s.keyName + "\"]",
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})
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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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// Also remove the physical key if we're debugging.
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if s.Debug {
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if err := os.Remove(s.DebugKeyPath); err != nil {
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ui.Error(fmt.Sprintf(
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"Error removing debug key '%s': %s", s.DebugKeyPath, err))
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}
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}
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}
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