packer-cn/builder/vmware/common/ssh.go

107 lines
2.3 KiB
Go

package common
import (
gossh "code.google.com/p/gosshold/ssh"
"errors"
"fmt"
"io/ioutil"
"log"
"os"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/communicator/ssh"
)
func SSHAddressFunc(config *SSHConfig) func(multistep.StateBag) (string, error) {
return func(state multistep.StateBag) (string, error) {
driver := state.Get("driver").(Driver)
vmxPath := state.Get("vmx_path").(string)
log.Println("Lookup up IP information...")
f, err := os.Open(vmxPath)
if err != nil {
return "", err
}
defer f.Close()
vmxBytes, err := ioutil.ReadAll(f)
if err != nil {
return "", err
}
vmxData := ParseVMX(string(vmxBytes))
var ok bool
macAddress := ""
if macAddress, ok = vmxData["ethernet0.address"]; !ok || macAddress == "" {
if macAddress, ok = vmxData["ethernet0.generatedaddress"]; !ok || macAddress == "" {
return "", errors.New("couldn't find MAC address in VMX")
}
}
ipLookup := &DHCPLeaseGuestLookup{
Driver: driver,
Device: "vmnet8",
MACAddress: macAddress,
}
ipAddress, err := ipLookup.GuestIP()
if err != nil {
log.Printf("IP lookup failed: %s", err)
return "", fmt.Errorf("IP lookup failed: %s", err)
}
if ipAddress == "" {
log.Println("IP is blank, no IP yet.")
return "", errors.New("IP is blank")
}
log.Printf("Detected IP: %s", ipAddress)
return fmt.Sprintf("%s:%d", ipAddress, config.SSHPort), nil
}
}
func SSHConfigFunc(config *SSHConfig) func(multistep.StateBag) (*gossh.ClientConfig, error) {
return func(state multistep.StateBag) (*gossh.ClientConfig, error) {
auth := []gossh.AuthMethod{
gossh.Password(config.SSHPassword),
gossh.KeyboardInteractive(
ssh.PasswordKeyboardInteractive(config.SSHPassword)),
}
if config.SSHKeyPath != "" {
signer, err := sshKeyToSigner(config.SSHKeyPath)
if err != nil {
return nil, err
}
auth = append(auth, gossh.PublicKeys(signer))
}
return &gossh.ClientConfig{
User: config.SSHUser,
Auth: auth,
}, nil
}
}
func sshKeyToSigner(path string) (gossh.Signer, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
keyBytes, err := ioutil.ReadAll(f)
if err != nil {
return nil, err
}
signer, err := gossh.ParsePrivateKey(keyBytes)
if err != nil {
return nil, fmt.Errorf("Error setting up SSH config: %s", err)
}
return signer, nil
}