packer-cn/builder/osc/common/step_key_pair.go

137 lines
3.6 KiB
Go

package common
import (
"context"
"fmt"
"os"
"runtime"
"github.com/antihax/optional"
"github.com/hashicorp/packer/packer-plugin-sdk/communicator"
"github.com/hashicorp/packer/packer-plugin-sdk/multistep"
packersdk "github.com/hashicorp/packer/packer-plugin-sdk/packer"
"github.com/outscale/osc-sdk-go/osc"
)
type StepKeyPair struct {
Debug bool
Comm *communicator.Config
DebugKeyPath string
doCleanup bool
}
func (s *StepKeyPair) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
ui := state.Get("ui").(packersdk.Ui)
if s.Comm.SSHPrivateKeyFile != "" {
ui.Say("Using existing SSH private key")
privateKeyBytes, err := s.Comm.ReadSSHPrivateKeyFile()
if err != nil {
state.Put("error", err)
return multistep.ActionHalt
}
s.Comm.SSHPrivateKey = privateKeyBytes
return multistep.ActionContinue
}
if s.Comm.SSHAgentAuth && s.Comm.SSHKeyPairName == "" {
ui.Say("Using SSH Agent with key pair in Source OMI")
return multistep.ActionContinue
}
if s.Comm.SSHAgentAuth && s.Comm.SSHKeyPairName != "" {
ui.Say(fmt.Sprintf("Using SSH Agent for existing key pair %s", s.Comm.SSHKeyPairName))
return multistep.ActionContinue
}
if s.Comm.SSHTemporaryKeyPairName == "" {
ui.Say("Not using temporary keypair")
s.Comm.SSHKeyPairName = ""
return multistep.ActionContinue
}
conn := state.Get("osc").(*osc.APIClient)
ui.Say(fmt.Sprintf("Creating temporary keypair: %s", s.Comm.SSHTemporaryKeyPairName))
resp, _, err := conn.KeypairApi.CreateKeypair(context.Background(), &osc.CreateKeypairOpts{
CreateKeypairRequest: optional.NewInterface(osc.CreateKeypairRequest{
KeypairName: s.Comm.SSHTemporaryKeyPairName,
}),
})
if err != nil {
state.Put("error", fmt.Errorf("Error creating temporary keypair: %s", err))
return multistep.ActionHalt
}
s.doCleanup = true
// Set some data for use in future steps
s.Comm.SSHKeyPairName = s.Comm.SSHTemporaryKeyPairName
s.Comm.SSHPrivateKey = []byte(resp.Keypair.PrivateKey)
// If we're in debug mode, output the private key to the working
// directory.
if s.Debug {
ui.Message(fmt.Sprintf("Saving key for debug purposes: %s", s.DebugKeyPath))
f, err := os.Create(s.DebugKeyPath)
if err != nil {
state.Put("error", fmt.Errorf("Error saving debug key: %s", err))
return multistep.ActionHalt
}
defer f.Close()
// Write the key out
if _, err := f.Write([]byte(resp.Keypair.PrivateKey)); err != nil {
state.Put("error", fmt.Errorf("Error saving debug key: %s", err))
return multistep.ActionHalt
}
// Chmod it so that it is SSH ready
if runtime.GOOS != "windows" {
if err := f.Chmod(0600); err != nil {
state.Put("error", fmt.Errorf("Error setting permissions of debug key: %s", err))
return multistep.ActionHalt
}
}
}
return multistep.ActionContinue
}
func (s *StepKeyPair) Cleanup(state multistep.StateBag) {
if !s.doCleanup {
return
}
var (
conn = state.Get("osc").(*osc.APIClient)
ui = state.Get("ui").(packersdk.Ui)
)
// Remove the keypair
ui.Say("Deleting temporary keypair...")
_, _, err := conn.KeypairApi.DeleteKeypair(context.Background(), &osc.DeleteKeypairOpts{
DeleteKeypairRequest: optional.NewInterface(osc.DeleteKeypairRequest{
KeypairName: s.Comm.SSHTemporaryKeyPairName,
}),
})
if err != nil {
ui.Error(fmt.Sprintf(
"Error cleaning up keypair. Please delete the key manually: %s", s.Comm.SSHTemporaryKeyPairName))
}
// Also remove the physical key if we're debugging.
if s.Debug {
if err := os.Remove(s.DebugKeyPath); err != nil {
ui.Error(fmt.Sprintf(
"Error removing debug key '%s': %s", s.DebugKeyPath, err))
}
}
}