Esempio n. 1
0
func TestWatchNewFile(t *testing.T) {
	t.Parallel()

	dir, am := tmpManager(t, false)
	defer os.RemoveAll(dir)

	// Ensure the watcher is started before adding any files.
	am.Accounts()
	time.Sleep(200 * time.Millisecond)

	// Move in the files.
	wantAccounts := make([]Account, len(cachetestAccounts))
	for i := range cachetestAccounts {
		a := cachetestAccounts[i]
		a.File = filepath.Join(dir, filepath.Base(a.File))
		wantAccounts[i] = a
		if err := cp.CopyFile(a.File, cachetestAccounts[i].File); err != nil {
			t.Fatal(err)
		}
	}

	// am should see the accounts.
	var list []Account
	for d := 200 * time.Millisecond; d < 5*time.Second; d *= 2 {
		list = am.Accounts()
		if reflect.DeepEqual(list, wantAccounts) {
			return
		}
		time.Sleep(d)
	}
	t.Errorf("got %s, want %s", spew.Sdump(list), spew.Sdump(wantAccounts))
}
Esempio n. 2
0
func TestWatchNoDir(t *testing.T) {
	t.Parallel()

	// Create am but not the directory that it watches.
	rand.Seed(time.Now().UnixNano())
	dir := filepath.Join(os.TempDir(), fmt.Sprintf("eth-keystore-watch-test-%d-%d", os.Getpid(), rand.Int()))
	am := NewManager(dir, LightScryptN, LightScryptP)

	list := am.Accounts()
	if len(list) > 0 {
		t.Error("initial account list not empty:", list)
	}
	time.Sleep(100 * time.Millisecond)

	// Create the directory and copy a key file into it.
	os.MkdirAll(dir, 0700)
	defer os.RemoveAll(dir)
	file := filepath.Join(dir, "aaa")
	if err := cp.CopyFile(file, cachetestAccounts[0].File); err != nil {
		t.Fatal(err)
	}

	// am should see the account.
	wantAccounts := []Account{cachetestAccounts[0]}
	wantAccounts[0].File = file
	for d := 200 * time.Millisecond; d < 8*time.Second; d *= 2 {
		list = am.Accounts()
		if reflect.DeepEqual(list, wantAccounts) {
			return
		}
		time.Sleep(d)
	}
	t.Errorf("\ngot  %v\nwant %v", list, wantAccounts)
}
Esempio n. 3
0
func (cmd) Execute(arguments map[string]interface{}) bool {
	// Read arguments
	imageFile := arguments["<image>"].(string)
	command := arguments["<command>"].([]string)
	vnc := arguments["--vnc"].(bool)

	// Create temporary storage and environment
	storage, err := runtime.NewTemporaryStorage(os.TempDir())
	if err != nil {
		panic("Failed to create TemporaryStorage")
	}
	environment := &runtime.Environment{
		TemporaryStorage: storage,
	}

	// Create a temporary folder
	tempFolder := filepath.Join("/tmp", slugid.Nice())
	if err = os.Mkdir(tempFolder, 0777); err != nil {
		log.Fatal("Failed to create temporary folder in /tmp, error: ", err)
	}

	// Create the necessary runtime setup
	gc := &gc.GarbageCollector{}
	logger, _ := runtime.CreateLogger("info")
	log := logger.WithField("component", "qemu-run")

	// Create image manager
	log.Info("Creating image manager")
	manager, err := image.NewManager(filepath.Join(tempFolder, "/images/"), gc, logger.WithField("component", "image-manager"), nil)
	if err != nil {
		log.Fatal("Failed to create image manager", err)
	}

	// Get an instance of the image
	log.Info("Creating instance of image")
	image, err := manager.Instance("image", func(target string) error {
		return cp.CopyFile(target, imageFile)
	})
	if err != nil {
		log.Fatal("Failed to create instance of image, error: ", err)
	}

	// Setup a user-space network
	log.Info("Creating user-space network")
	net, err := network.NewUserNetwork(tempFolder)
	if err != nil {
		log.Fatal("Failed to create user-space network, error: ", err)
	}

	// Create virtual machine
	log.Info("Creating virtual machine")
	vm, err := vm.NewVirtualMachine(
		image.Machine().Options(), image, net, tempFolder,
		"", "", logger.WithField("component", "vm"),
	)
	if err != nil {
		log.Fatal("Failed to create virtual-machine, error: ", err)
	}

	// Create meta-data service
	log.Info("Creating meta-data service")
	var shellServer *interactive.ShellServer
	var displayServer *interactive.DisplayServer
	ms := metaservice.New(command, make(map[string]string), os.Stdout, func(result bool) {
		fmt.Println("### Task Completed, result = ", result)
		shellServer.WaitAndClose()
		displayServer.Abort()
		vm.Kill()
	}, environment)

	// Setup http handler for network
	vm.SetHTTPHandler(ms)

	// Create ShellServer
	shellServer = interactive.NewShellServer(
		ms.ExecShell, log.WithField("component", "shell-server"),
	)

	// Create displayServer
	displayServer = interactive.NewDisplayServer(
		&socketDisplayProvider{socket: vm.VNCSocket()},
		log.WithField("component", "display-server"),
	)

	interactiveHandler := http.NewServeMux()
	interactiveHandler.Handle("/shell/", shellServer)
	interactiveHandler.Handle("/display/", displayServer)
	interactiveServer := graceful.Server{
		Timeout: 30 * time.Second,
		Server: &http.Server{
			Addr:    "localhost:8080",
			Handler: interactiveHandler,
		},
		NoSignalHandling: true,
	}
	go interactiveServer.ListenAndServe()

	// Start the virtual machine
	log.Info("Start the virtual machine")
	vm.Start()

	// Start vncviewer
	done := make(chan struct{})
	if vnc {
		go StartVNCViewer(vm.VNCSocket(), done)
	}

	// Wait for SIGINT/SIGKILL or vm.Done
	c := make(chan os.Signal, 2)
	signal.Notify(c, os.Interrupt, os.Kill) // This pattern leaks, acceptable here
	select {
	case <-c:
		signal.Stop(c)
		fmt.Println("### Terminating QEMU")
		vm.Kill()
	case <-vm.Done:
		fmt.Println("### QEMU terminated")
	}
	close(done)

	// Ensure that QEMU has terminated before we continue
	<-vm.Done
	interactiveServer.Stop(100 * time.Millisecond)

	// Clean up anything left in the garbage collector
	gc.CollectAll()
	return true
}