package profitbricks import ( "crypto/x509" "encoding/pem" "fmt" "github.com/hashicorp/packer/packer" "github.com/mitchellh/multistep" "golang.org/x/crypto/ssh" "io/ioutil" ) type StepCreateSSHKey struct { Debug bool DebugKeyPath string } func (s *StepCreateSSHKey) Run(state multistep.StateBag) multistep.StepAction { ui := state.Get("ui").(packer.Ui) c := state.Get("config").(*Config) if c.Comm.SSHPrivateKey != "" { pemBytes, err := ioutil.ReadFile(c.Comm.SSHPrivateKey) if err != nil { ui.Error(err.Error()) return multistep.ActionHalt } block, _ := pem.Decode(pemBytes) priv, err := x509.ParsePKCS1PrivateKey(block.Bytes) if err != nil { state.Put("error", err.Error()) 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 } state.Put("privateKey", string(pem.EncodeToMemory(&priv_blk))) state.Put("publicKey", string(ssh.MarshalAuthorizedKey(pub))) } return multistep.ActionContinue } func (s *StepCreateSSHKey) Cleanup(state multistep.StateBag) {}