github.phpd.cn/hashicorp/packer@v1.3.2/builder/profitbricks/step_create_ssh_key.go (about)

     1  package profitbricks
     2  
     3  import (
     4  	"context"
     5  	"crypto/x509"
     6  	"encoding/pem"
     7  	"fmt"
     8  	"io/ioutil"
     9  
    10  	"github.com/hashicorp/packer/helper/multistep"
    11  	"github.com/hashicorp/packer/packer"
    12  	"golang.org/x/crypto/ssh"
    13  )
    14  
    15  type StepCreateSSHKey struct {
    16  	Debug        bool
    17  	DebugKeyPath string
    18  }
    19  
    20  func (s *StepCreateSSHKey) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
    21  	ui := state.Get("ui").(packer.Ui)
    22  	c := state.Get("config").(*Config)
    23  
    24  	if c.Comm.SSHPrivateKeyFile != "" {
    25  		pemBytes, err := ioutil.ReadFile(c.Comm.SSHPrivateKeyFile)
    26  
    27  		if err != nil {
    28  			ui.Error(err.Error())
    29  			return multistep.ActionHalt
    30  		}
    31  
    32  		block, _ := pem.Decode(pemBytes)
    33  
    34  		priv, err := x509.ParsePKCS1PrivateKey(block.Bytes)
    35  
    36  		if err != nil {
    37  
    38  			state.Put("error", err.Error())
    39  			ui.Error(err.Error())
    40  			return multistep.ActionHalt
    41  		}
    42  
    43  		priv_blk := pem.Block{
    44  			Type:    "RSA PRIVATE KEY",
    45  			Headers: nil,
    46  			Bytes:   x509.MarshalPKCS1PrivateKey(priv),
    47  		}
    48  
    49  		pub, err := ssh.NewPublicKey(&priv.PublicKey)
    50  		if err != nil {
    51  			err := fmt.Errorf("Error creating temporary ssh key: %s", err)
    52  			state.Put("error", err)
    53  			ui.Error(err.Error())
    54  			return multistep.ActionHalt
    55  		}
    56  		c.Comm.SSHPrivateKey = pem.EncodeToMemory(&priv_blk)
    57  		c.Comm.SSHPublicKey = ssh.MarshalAuthorizedKey(pub)
    58  	}
    59  	return multistep.ActionContinue
    60  }
    61  
    62  func (s *StepCreateSSHKey) Cleanup(state multistep.StateBag) {}