builder/vmware: convert to cmmon ssh step

This commit is contained in:
Mitchell Hashimoto 2013-07-15 14:22:13 +09:00
parent 979bfc412e
commit fd58b33b38
3 changed files with 70 additions and 184 deletions

View File

@ -284,7 +284,11 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
&stepConfigureVNC{}, &stepConfigureVNC{},
&stepRun{}, &stepRun{},
&stepTypeBootCommand{}, &stepTypeBootCommand{},
&stepWaitForSSH{}, &common.StepConnectSSH{
SSHAddress: sshAddress,
SSHConfig: sshConfig,
SSHWaitTimeout: b.config.sshWaitTimeout,
},
&stepUploadTools{}, &stepUploadTools{},
&stepProvision{}, &stepProvision{},
&stepShutdown{}, &stepShutdown{},

65
builder/vmware/ssh.go Normal file
View File

@ -0,0 +1,65 @@
package vmware
import (
gossh "code.google.com/p/go.crypto/ssh"
"errors"
"fmt"
"github.com/mitchellh/packer/communicator/ssh"
"io/ioutil"
"log"
"os"
)
func sshAddress(state map[string]interface{}) (string, error) {
config := state["config"].(*config)
vmxPath := state["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{
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)
}
log.Printf("Detected IP: %s", ipAddress)
return fmt.Sprintf("%s:%d", ipAddress, config.SSHPort), nil
}
func sshConfig(state map[string]interface{}) (*gossh.ClientConfig, error) {
config := state["config"].(*config)
return &gossh.ClientConfig{
User: config.SSHUser,
Auth: []gossh.ClientAuth{
gossh.ClientAuthPassword(ssh.Password(config.SSHPassword)),
gossh.ClientAuthKeyboardInteractive(
ssh.PasswordKeyboardInteractive(config.SSHPassword)),
},
}, nil
}

View File

@ -1,183 +0,0 @@
package vmware
import (
gossh "code.google.com/p/go.crypto/ssh"
"errors"
"fmt"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/communicator/ssh"
"github.com/mitchellh/packer/packer"
"io/ioutil"
"log"
"os"
"time"
)
// This step waits for SSH to become available and establishes an SSH
// connection.
//
// Uses:
// config *config
// ui packer.Ui
// vmx_path string
//
// Produces:
// communicator packer.Communicator
type stepWaitForSSH struct {
cancel bool
comm packer.Communicator
}
func (s *stepWaitForSSH) Run(state map[string]interface{}) multistep.StepAction {
config := state["config"].(*config)
ui := state["ui"].(packer.Ui)
var comm packer.Communicator
var err error
waitDone := make(chan bool, 1)
go func() {
comm, err = s.waitForSSH(state)
waitDone <- true
}()
log.Printf("Waiting for SSH, up to timeout: %s", config.sshWaitTimeout.String())
timeout := time.After(config.sshWaitTimeout)
WaitLoop:
for {
// Wait for either SSH to become available, a timeout to occur,
// or an interrupt to come through.
select {
case <-waitDone:
if err != nil {
ui.Error(fmt.Sprintf("Error waiting for SSH: %s", err))
return multistep.ActionHalt
}
s.comm = comm
state["communicator"] = comm
break WaitLoop
case <-timeout:
ui.Error("Timeout waiting for SSH.")
s.cancel = true
return multistep.ActionHalt
case <-time.After(1 * time.Second):
if _, ok := state[multistep.StateCancelled]; ok {
log.Println("Interrupt detected, quitting waiting for SSH.")
return multistep.ActionHalt
}
}
}
return multistep.ActionContinue
}
func (s *stepWaitForSSH) Cleanup(map[string]interface{}) {
if s.comm != nil {
// TODO: close
s.comm = nil
}
}
// Reads the network information for lookup via DHCP.
func (s *stepWaitForSSH) dhcpLeaseLookup(vmxPath string) (GuestIPFinder, error) {
f, err := os.Open(vmxPath)
if err != nil {
return nil, err
}
defer f.Close()
vmxBytes, err := ioutil.ReadAll(f)
if err != nil {
return nil, 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 nil, errors.New("couldn't find MAC address in VMX")
}
}
return &DHCPLeaseGuestLookup{"vmnet8", macAddress}, nil
}
// This blocks until SSH becomes available, and sends the communicator
// on the given channel.
func (s *stepWaitForSSH) waitForSSH(state map[string]interface{}) (packer.Communicator, error) {
config := state["config"].(*config)
ui := state["ui"].(packer.Ui)
vmxPath := state["vmx_path"].(string)
handshakeAttempts := 0
ui.Say("Waiting for SSH to become available...")
var comm packer.Communicator
for {
time.Sleep(5 * time.Second)
if s.cancel {
log.Println("SSH wait cancelled. Exiting loop.")
return nil, errors.New("SSH wait cancelled")
}
// First we wait for the IP to become available...
log.Println("Lookup up IP information...")
ipLookup, err := s.dhcpLeaseLookup(vmxPath)
if err != nil {
log.Printf("Can't lookup via DHCP lease: %s", err)
}
ip, err := ipLookup.GuestIP()
if err != nil {
log.Printf("IP lookup failed: %s", err)
continue
}
log.Printf("Detected IP: %s", ip)
// Attempt to connect to SSH port
connFunc := ssh.ConnectFunc(
"tcp", fmt.Sprintf("%s:%d", ip, config.SSHPort), 5*time.Minute)
nc, err := connFunc()
if err != nil {
log.Printf("TCP connection to SSH ip/port failed: %s", err)
continue
}
nc.Close()
// Then we attempt to connect via SSH
config := &ssh.Config{
Connection: connFunc,
SSHConfig: &gossh.ClientConfig{
User: config.SSHUser,
Auth: []gossh.ClientAuth{
gossh.ClientAuthPassword(ssh.Password(config.SSHPassword)),
gossh.ClientAuthKeyboardInteractive(
ssh.PasswordKeyboardInteractive(config.SSHPassword)),
},
},
}
comm, err = ssh.New(config)
if err != nil {
log.Printf("SSH handshake err: %s", err)
handshakeAttempts += 1
if handshakeAttempts < 10 {
// Try to connect via SSH a handful of times
continue
}
return nil, err
}
ui.Say("Connected via SSH!")
break
}
return comm, nil
}