func TestStart(t *testing.T) {
address := newMockLineServer(t)
parts := strings.Split(address, ":")
r := &terraform.InstanceState{
Ephemeral: terraform.EphemeralState{
ConnInfo: map[string]string{
"type": "ssh",
"user": "******",
"password": "******",
"host": parts[0],
"port": parts[1],
"timeout": "30s",
},
},
}
c, err := New(r)
if err != nil {
t.Fatalf("error creating communicator: %s", err)
}
var cmd remote.Cmd
stdout := new(bytes.Buffer)
cmd.Command = "echo foo"
cmd.Stdout = stdout
err = c.Start(&cmd)
if err != nil {
t.Fatalf("error executing remote command: %s", err)
}
}
// Start implementation of communicator.Communicator interface
func (c *MockCommunicator) Start(r *remote.Cmd) error {
if !c.Commands[r.Command] {
return fmt.Errorf("Command not found!")
}
r.SetExited(0)
return nil
}
// Start implementation of communicator.Communicator interface
func (c *Communicator) Start(cmd *remote.Cmd) error {
session, err := c.newSession()
if err != nil {
return err
}
// Setup our session
session.Stdin = cmd.Stdin
session.Stdout = cmd.Stdout
session.Stderr = cmd.Stderr
if !c.config.noPty {
// Request a PTY
termModes := ssh.TerminalModes{
ssh.ECHO: 0, // do not echo
ssh.TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
ssh.TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
}
if err := session.RequestPty("xterm", 80, 40, termModes); err != nil {
return err
}
}
log.Printf("starting remote command: %s", cmd.Command)
err = session.Start(cmd.Command + "\n")
if err != nil {
return err
}
// Start a goroutine to wait for the session to end and set the
// exit boolean and status.
go func() {
defer session.Close()
err := session.Wait()
exitStatus := 0
if err != nil {
exitErr, ok := err.(*ssh.ExitError)
if ok {
exitStatus = exitErr.ExitStatus()
}
}
log.Printf("remote command exited with '%d': %s", exitStatus, cmd.Command)
cmd.SetExited(exitStatus)
}()
return nil
}
func runCommand(shell *winrm.Shell, cmd *winrm.Command, rc *remote.Cmd) {
defer shell.Close()
var wg sync.WaitGroup
go func() {
wg.Add(1)
io.Copy(rc.Stdout, cmd.Stdout)
wg.Done()
}()
go func() {
wg.Add(1)
io.Copy(rc.Stderr, cmd.Stderr)
wg.Done()
}()
cmd.Wait()
wg.Wait()
rc.SetExited(cmd.ExitCode())
}
func TestStart_KeyFile(t *testing.T) {
address := newMockLineServer(t)
parts := strings.Split(address, ":")
keyFile, err := ioutil.TempFile("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
keyFilePath := keyFile.Name()
keyFile.Write([]byte(testClientPrivateKey))
keyFile.Close()
defer os.Remove(keyFilePath)
r := &terraform.InstanceState{
Ephemeral: terraform.EphemeralState{
ConnInfo: map[string]string{
"type": "ssh",
"user": "******",
"key_file": keyFilePath,
"host": parts[0],
"port": parts[1],
"timeout": "30s",
},
},
}
c, err := New(r)
if err != nil {
t.Fatalf("error creating communicator: %s", err)
}
var cmd remote.Cmd
stdout := new(bytes.Buffer)
cmd.Command = "echo foo"
cmd.Stdout = stdout
err = c.Start(&cmd)
if err != nil {
t.Fatalf("error executing remote command: %s", err)
}
}
func TestStart(t *testing.T) {
wrm := newMockWinRMServer(t)
defer wrm.Close()
r := &terraform.InstanceState{
Ephemeral: terraform.EphemeralState{
ConnInfo: map[string]string{
"type": "winrm",
"user": "******",
"password": "******",
"host": wrm.Host,
"port": strconv.Itoa(wrm.Port),
"timeout": "30s",
},
},
}
c, err := New(r)
if err != nil {
t.Fatalf("error creating communicator: %s", err)
}
var cmd remote.Cmd
stdout := new(bytes.Buffer)
cmd.Command = "echo foo"
cmd.Stdout = stdout
err = c.Start(&cmd)
if err != nil {
t.Fatalf("error executing remote command: %s", err)
}
cmd.Wait()
if stdout.String() != "foo" {
t.Fatalf("bad command response: expected %q, got %q", "foo", stdout.String())
}
}
// runScripts is used to copy and execute a set of scripts
func (p *ResourceProvisioner) runScripts(
o terraform.UIOutput,
comm communicator.Communicator,
scripts []io.ReadCloser) error {
// Wait and retry until we establish the connection
err := retryFunc(comm.Timeout(), func() error {
err := comm.Connect(o)
return err
})
if err != nil {
return err
}
defer comm.Disconnect()
for _, script := range scripts {
var cmd *remote.Cmd
outR, outW := io.Pipe()
errR, errW := io.Pipe()
outDoneCh := make(chan struct{})
errDoneCh := make(chan struct{})
go p.copyOutput(o, outR, outDoneCh)
go p.copyOutput(o, errR, errDoneCh)
err = retryFunc(comm.Timeout(), func() error {
remotePath := comm.ScriptPath()
if err := comm.UploadScript(remotePath, script); err != nil {
return fmt.Errorf("Failed to upload script: %v", err)
}
cmd = &remote.Cmd{
Command: remotePath,
Stdout: outW,
Stderr: errW,
}
if err := comm.Start(cmd); err != nil {
return fmt.Errorf("Error starting script: %v", err)
}
return nil
})
if err == nil {
cmd.Wait()
if cmd.ExitStatus != 0 {
err = fmt.Errorf("Script exited with non-zero exit status: %d", cmd.ExitStatus)
}
}
// Wait for output to clean up
outW.Close()
errW.Close()
<-outDoneCh
<-errDoneCh
// If we have an error, return it out now that we've cleaned up
if err != nil {
return err
}
}
return nil
}