packer-cn/builder/profitbricks/step_create_ssh_key.go

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package profitbricks
import (
"context"
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"crypto/x509"
"encoding/pem"
"fmt"
"io/ioutil"
"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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"golang.org/x/crypto/ssh"
)
type StepCreateSSHKey struct {
Debug bool
DebugKeyPath string
}
func (s *StepCreateSSHKey) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
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ui := state.Get("ui").(packer.Ui)
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c := state.Get("config").(*Config)
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if c.Comm.SSHPrivateKeyFile != "" {
pemBytes, err := ioutil.ReadFile(c.Comm.SSHPrivateKeyFile)
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if err != nil {
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ui.Error(err.Error())
return multistep.ActionHalt
}
block, _ := pem.Decode(pemBytes)
priv, err := x509.ParsePKCS1PrivateKey(block.Bytes)
if err != nil {
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state.Put("error", err.Error())
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ui.Error(err.Error())
return multistep.ActionHalt
}
priv_blk := pem.Block{
Type: "RSA PRIVATE KEY",
Headers: nil,
Bytes: x509.MarshalPKCS1PrivateKey(priv),
}
pub, err := ssh.NewPublicKey(&priv.PublicKey)
if err != nil {
err := fmt.Errorf("Error creating temporary ssh key: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
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c.Comm.SSHPrivateKey = pem.EncodeToMemory(&priv_blk)
c.Comm.SSHPublicKey = ssh.MarshalAuthorizedKey(pub)
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}
return multistep.ActionContinue
}
func (s *StepCreateSSHKey) Cleanup(state multistep.StateBag) {}