// Returns the cert paths.
// codegangsta/cli will not set the cert paths if the storage-path is set to
// something different so we cannot use the paths in the global options. le
// sigh.
func getCertPathInfoFromContext(c CommandLine) cert.PathInfo {
	caCertPath := c.GlobalString("tls-ca-cert")
	if caCertPath == "" {
		caCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "ca.pem")
	}

	caKeyPath := c.GlobalString("tls-ca-key")
	if caKeyPath == "" {
		caKeyPath = filepath.Join(mcndirs.GetMachineCertDir(), "ca-key.pem")
	}

	clientCertPath := c.GlobalString("tls-client-cert")
	if clientCertPath == "" {
		clientCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "cert.pem")
	}

	clientKeyPath := c.GlobalString("tls-client-key")
	if clientKeyPath == "" {
		clientKeyPath = filepath.Join(mcndirs.GetMachineCertDir(), "key.pem")
	}

	return cert.PathInfo{
		CaCertPath:       caCertPath,
		CaPrivateKeyPath: caKeyPath,
		ClientCertPath:   clientCertPath,
		ClientKeyPath:    clientKeyPath,
	}
}

func fatalOnError(command func(commandLine CommandLine, api libmachine.API) error) func(context *cli.Context) {
	return func(context *cli.Context) {
		api := libmachine.NewClient(mcndirs.GetBaseDir(), mcndirs.GetMachineCertDir())
		defer api.Close()

		if context.GlobalBool("native-ssh") {
			api.SSHClientType = ssh.Native
		}
		api.GithubAPIToken = context.GlobalString("github-api-token")
		api.Filestore.Path = context.GlobalString("storage-path")

		// TODO (nathanleclaire): These should ultimately be accessed
		// through the libmachine client by the rest of the code and
		// not through their respective modules.  For now, however,
		// they are also being set the way that they originally were
		// set to preserve backwards compatibility.
		mcndirs.BaseDir = api.Filestore.Path
		mcnutils.GithubAPIToken = api.GithubAPIToken
		ssh.SetDefaultClient(api.SSHClientType)

		if err := command(&contextCommandLine{context}, api); err != nil {
			log.Fatal(err)

			if crashErr, ok := err.(crashreport.CrashError); ok {
				crashReporter := crashreport.NewCrashReporter(mcndirs.GetBaseDir(), context.GlobalString("bugsnag-api-token"))
				crashReporter.Send(crashErr)
			}
		}
	}
}

func run() error {
	machineName := flag.String("machine", "default", "Docker machine name")
	addr := flag.String("addr", "localhost:2375", "Address of the proxy")
	help := flag.Bool("help", false, "Show help")

	flag.Parse()

	if *help {
		flag.Usage()
		return nil
	}

	api := libmachine.NewClient(mcndirs.GetBaseDir(), mcndirs.GetMachineCertDir())
	defer api.Close()

	machine, err := api.Load(*machineName)
	if err != nil {
		return err
	}

	url, err := machine.URL()
	if err != nil {
		return err
	}

	return http.ListenAndServe(*addr, &proxy.DockerMachineProxy{
		Machine: &mcn.DockerMachine{
			Url:      url,
			CertPath: filepath.Join(mcndirs.GetBaseDir(), "machines", *machineName),
		},
	})
}

func tlsPath(c CommandLine, flag string, defaultName string) string {
	path := c.GlobalString(flag)
	if path != "" {
		return path
	}

	return filepath.Join(mcndirs.GetMachineCertDir(), defaultName)
}

func WithApi(handler Handler, args map[string]string, form map[string][]string) func() (interface{}, error) {
	return func() (interface{}, error) {
		globalMutex.Lock()
		defer globalMutex.Unlock()

		api := libmachine.NewClient(mcndirs.GetBaseDir(), mcndirs.GetMachineCertDir())
		defer api.Close()

		return handler.Handle(api, args, form)
	}
}

// findIP finds the IP address of a Docker Machine host given its name.
func findIP(name string) (net.IP, error) {
	log.Println("Looking for virtualbox machine", name)

	api := libmachine.NewClient(mcndirs.GetBaseDir(), mcndirs.GetMachineCertDir())
	defer api.Close()

	machine, err := api.Load(name)
	if err != nil {
		return nil, err
	}

	driver := machine.Driver.DriverName()

	ip, err := machine.Driver.GetIP()
	if err != nil {
		return nil, err
	}

	log.Printf("Found %s(%s) with IP %s\n", name, driver, ip)

	return net.ParseIP(ip), nil
}

func (d *DockerMachineFsNotify) NotifyVm(event FsEvent) error {
	api := libmachine.NewClient(mcndirs.GetBaseDir(), mcndirs.GetMachineCertDir())

	host, err := api.Load(d.DockerMachineName)
	if err != nil {
		return err
	}

	currentState, err := host.Driver.GetState()
	if err != nil {
		return err
	}

	if currentState != state.Running {
		return errors.New("Docker Machine " + host.Name + " is not running")
	}

	client, err := host.CreateSSHClient()
	if err != nil {
		return err
	}

	return client.Shell("touch -t " + event.ModTime.UTC().Format(touchTimeFormat) + " -m -c " + event.File)
}

func cmdCreateInner(c CommandLine) error {
	if len(c.Args()) > 1 {
		return fmt.Errorf("Invalid command line. Found extra arguments %v", c.Args()[1:])
	}

	name := c.Args().First()
	driverName := c.String("driver")
	certInfo := getCertPathInfoFromContext(c)

	storePath := c.GlobalString("storage-path")

	store := &persist.Filestore{
		Path:             storePath,
		CaCertPath:       certInfo.CaCertPath,
		CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
	}

	if name == "" {
		c.ShowHelp()
		return errNoMachineName
	}

	validName := host.ValidateHostName(name)
	if !validName {
		return fmt.Errorf("Error creating machine: %s", mcnerror.ErrInvalidHostname)
	}

	if err := validateSwarmDiscovery(c.String("swarm-discovery")); err != nil {
		return fmt.Errorf("Error parsing swarm discovery: %s", err)
	}

	// TODO: Fix hacky JSON solution
	bareDriverData, err := json.Marshal(&drivers.BaseDriver{
		MachineName: name,
		StorePath:   c.GlobalString("storage-path"),
	})
	if err != nil {
		return fmt.Errorf("Error attempting to marshal bare driver data: %s", err)
	}

	driver, err := newPluginDriver(driverName, bareDriverData)
	if err != nil {
		return fmt.Errorf("Error loading driver %q: %s", driverName, err)
	}

	h, err := store.NewHost(driver)
	if err != nil {
		return fmt.Errorf("Error getting new host: %s", err)
	}

	h.HostOptions = &host.Options{
		AuthOptions: &auth.Options{
			CertDir:          mcndirs.GetMachineCertDir(),
			CaCertPath:       certInfo.CaCertPath,
			CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
			ClientCertPath:   certInfo.ClientCertPath,
			ClientKeyPath:    certInfo.ClientKeyPath,
			ServerCertPath:   filepath.Join(mcndirs.GetMachineDir(), name, "server.pem"),
			ServerKeyPath:    filepath.Join(mcndirs.GetMachineDir(), name, "server-key.pem"),
			StorePath:        filepath.Join(mcndirs.GetMachineDir(), name),
		},
		EngineOptions: &engine.Options{
			ArbitraryFlags:   c.StringSlice("engine-opt"),
			Env:              c.StringSlice("engine-env"),
			InsecureRegistry: c.StringSlice("engine-insecure-registry"),
			Labels:           c.StringSlice("engine-label"),
			RegistryMirror:   c.StringSlice("engine-registry-mirror"),
			StorageDriver:    c.String("engine-storage-driver"),
			TLSVerify:        true,
			InstallURL:       c.String("engine-install-url"),
		},
		SwarmOptions: &swarm.Options{
			IsSwarm:        c.Bool("swarm"),
			Image:          c.String("swarm-image"),
			Master:         c.Bool("swarm-master"),
			Discovery:      c.String("swarm-discovery"),
			Address:        c.String("swarm-addr"),
			Host:           c.String("swarm-host"),
			Strategy:       c.String("swarm-strategy"),
			ArbitraryFlags: c.StringSlice("swarm-opt"),
		},
	}

	exists, err := store.Exists(h.Name)
	if err != nil {
		return fmt.Errorf("Error checking if host exists: %s", err)
	}
	if exists {
		return mcnerror.ErrHostAlreadyExists{
			Name: h.Name,
		}
	}

	// driverOpts is the actual data we send over the wire to set the
	// driver parameters (an interface fulfilling drivers.DriverOptions,
	// concrete type rpcdriver.RpcFlags).
	mcnFlags := driver.GetCreateFlags()
	driverOpts := getDriverOpts(c, mcnFlags)

	if err := h.Driver.SetConfigFromFlags(driverOpts); err != nil {
//.........这里部分代码省略.........

func cmdCreateInner(c CommandLine, api libmachine.API) error {
	if len(c.Args()) > 1 {
		return fmt.Errorf("Invalid command line. Found extra arguments %v", c.Args()[1:])
	}

	name := c.Args().First()
	if name == "" {
		c.ShowHelp()
		return errNoMachineName
	}

	validName := host.ValidateHostName(name)
	if !validName {
		return fmt.Errorf("Error creating machine: %s", mcnerror.ErrInvalidHostname)
	}

	if err := validateSwarmDiscovery(c.String("swarm-discovery")); err != nil {
		return fmt.Errorf("Error parsing swarm discovery: %s", err)
	}

	// TODO: Fix hacky JSON solution
	rawDriver, err := json.Marshal(&drivers.BaseDriver{
		MachineName: name,
		StorePath:   c.GlobalString("storage-path"),
	})
	if err != nil {
		return fmt.Errorf("Error attempting to marshal bare driver data: %s", err)
	}

	driverName := c.String("driver")
	h, err := api.NewHost(driverName, rawDriver)
	if err != nil {
		return fmt.Errorf("Error getting new host: %s", err)
	}

	h.HostOptions = &host.Options{
		AuthOptions: &auth.Options{
			CertDir:          mcndirs.GetMachineCertDir(),
			CaCertPath:       tlsPath(c, "tls-ca-cert", "ca.pem"),
			CaPrivateKeyPath: tlsPath(c, "tls-ca-key", "ca-key.pem"),
			ClientCertPath:   tlsPath(c, "tls-client-cert", "cert.pem"),
			ClientKeyPath:    tlsPath(c, "tls-client-key", "key.pem"),
			ServerCertPath:   filepath.Join(mcndirs.GetMachineDir(), name, "server.pem"),
			ServerKeyPath:    filepath.Join(mcndirs.GetMachineDir(), name, "server-key.pem"),
			StorePath:        filepath.Join(mcndirs.GetMachineDir(), name),
			ServerCertSANs:   c.StringSlice("tls-san"),
		},
		EngineOptions: &engine.Options{
			ArbitraryFlags:   c.StringSlice("engine-opt"),
			Env:              c.StringSlice("engine-env"),
			InsecureRegistry: c.StringSlice("engine-insecure-registry"),
			Labels:           c.StringSlice("engine-label"),
			RegistryMirror:   c.StringSlice("engine-registry-mirror"),
			StorageDriver:    c.String("engine-storage-driver"),
			TLSVerify:        true,
			InstallURL:       c.String("engine-install-url"),
		},
		SwarmOptions: &swarm.Options{
			IsSwarm:            c.Bool("swarm") || c.Bool("swarm-master"),
			Image:              c.String("swarm-image"),
			Agent:              c.Bool("swarm"),
			Master:             c.Bool("swarm-master"),
			Discovery:          c.String("swarm-discovery"),
			Address:            c.String("swarm-addr"),
			Host:               c.String("swarm-host"),
			Strategy:           c.String("swarm-strategy"),
			ArbitraryFlags:     c.StringSlice("swarm-opt"),
			ArbitraryJoinFlags: c.StringSlice("swarm-join-opt"),
			IsExperimental:     c.Bool("swarm-experimental"),
		},
	}

	exists, err := api.Exists(h.Name)
	if err != nil {
		return fmt.Errorf("Error checking if host exists: %s", err)
	}
	if exists {
		return mcnerror.ErrHostAlreadyExists{
			Name: h.Name,
		}
	}

	// driverOpts is the actual data we send over the wire to set the
	// driver parameters (an interface fulfilling drivers.DriverOptions,
	// concrete type rpcdriver.RpcFlags).
	mcnFlags := h.Driver.GetCreateFlags()
	driverOpts := getDriverOpts(c, mcnFlags)

	if err := h.Driver.SetConfigFromFlags(driverOpts); err != nil {
		return fmt.Errorf("Error setting machine configuration from flags provided: %s", err)
	}

	if err := api.Create(h); err != nil {
		// Wait for all the logs to reach the client
		time.Sleep(2 * time.Second)

		vBoxLog := ""
		if h.DriverName == "virtualbox" {
			vBoxLog = filepath.Join(api.GetMachinesDir(), h.Name, h.Name, "Logs", "VBox.log")
		}
//.........这里部分代码省略.........

func cmdCreate(c *cli.Context) {
	var (
		driver drivers.Driver
	)

	driverName := c.String("driver")
	name := c.Args().First()
	certInfo := getCertPathInfoFromContext(c)

	storePath := c.GlobalString("storage-path")
	store := &persist.Filestore{
		Path:             storePath,
		CaCertPath:       certInfo.CaCertPath,
		CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
	}

	// TODO: Not really a fan of "none" as the default driver...
	if driverName != "none" {
		var err error

		c.App.Commands, err = trimDriverFlags(driverName, c.App.Commands)
		if err != nil {
			log.Fatal(err)
		}
	}

	if name == "" {
		cli.ShowCommandHelp(c, "create")
		log.Fatal("You must specify a machine name")
	}

	if len(c.Args()) > 1 {
		log.Fatalf("Invalid command line. Found extra arguments %v", c.Args()[1:])
	}

	validName := host.ValidateHostName(name)
	if !validName {
		log.Fatal("Error creating machine: ", mcnerror.ErrInvalidHostname)
	}

	if err := validateSwarmDiscovery(c.String("swarm-discovery")); err != nil {
		log.Fatalf("Error parsing swarm discovery: %s", err)
	}

	hostOptions := &host.HostOptions{
		AuthOptions: &auth.AuthOptions{
			CertDir:          mcndirs.GetMachineCertDir(),
			CaCertPath:       certInfo.CaCertPath,
			CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
			ClientCertPath:   certInfo.ClientCertPath,
			ClientKeyPath:    certInfo.ClientKeyPath,
			ServerCertPath:   filepath.Join(mcndirs.GetMachineDir(), name, "server.pem"),
			ServerKeyPath:    filepath.Join(mcndirs.GetMachineDir(), name, "server-key.pem"),
			StorePath:        filepath.Join(mcndirs.GetMachineDir(), name),
		},
		EngineOptions: &engine.EngineOptions{
			ArbitraryFlags:   c.StringSlice("engine-opt"),
			Env:              c.StringSlice("engine-env"),
			InsecureRegistry: c.StringSlice("engine-insecure-registry"),
			Labels:           c.StringSlice("engine-label"),
			RegistryMirror:   c.StringSlice("engine-registry-mirror"),
			StorageDriver:    c.String("engine-storage-driver"),
			TlsVerify:        true,
			InstallURL:       c.String("engine-install-url"),
		},
		SwarmOptions: &swarm.SwarmOptions{
			IsSwarm:        c.Bool("swarm"),
			Image:          c.String("swarm-image"),
			Master:         c.Bool("swarm-master"),
			Discovery:      c.String("swarm-discovery"),
			Address:        c.String("swarm-addr"),
			Host:           c.String("swarm-host"),
			Strategy:       c.String("swarm-strategy"),
			ArbitraryFlags: c.StringSlice("swarm-opt"),
		},
	}

	driver, err := driverfactory.NewDriver(driverName, name, storePath)
	if err != nil {
		log.Fatalf("Error trying to get driver: %s", err)
	}

	h, err := store.NewHost(driver)
	if err != nil {
		log.Fatalf("Error getting new host: %s", err)
	}

	h.HostOptions = hostOptions

	exists, err := store.Exists(h.Name)
	if err != nil {
		log.Fatalf("Error checking if host exists: %s", err)
	}
	if exists {
		log.Fatal(mcnerror.ErrHostAlreadyExists{
			Name: h.Name,
		})
	}

	// TODO: This should be moved out of the driver and done in the
//.........这里部分代码省略.........

func createMachine(api libmachine.API, name string, driver string, form map[string][]string) error {
	validName := host.ValidateHostName(name)
	if !validName {
		return fmt.Errorf("Error creating machine: %s", mcnerror.ErrInvalidHostname)
	}

	exists, err := api.Exists(name)
	if err != nil {
		return fmt.Errorf("Error checking if host exists: %s", err)
	}
	if exists {
		return mcnerror.ErrHostAlreadyExists{
			Name: name,
		}
	}

	rawDriver, err := json.Marshal(&drivers.BaseDriver{
		MachineName: name,
		StorePath:   mcndirs.GetBaseDir(),
	})
	if err != nil {
		return fmt.Errorf("Error attempting to marshal bare driver data: %s", err)
	}

	h, err := api.NewHost(driver, rawDriver)
	if err != nil {
		return err
	}

	globalOpts := globalFlags{
		flags: form,
	}

	h.HostOptions = &host.Options{
		AuthOptions: &auth.Options{
			CertDir:          mcndirs.GetMachineCertDir(),
			CaCertPath:       filepath.Join(mcndirs.GetMachineCertDir(), "ca.pem"),
			CaPrivateKeyPath: filepath.Join(mcndirs.GetMachineCertDir(), "ca-key.pem"),
			ClientCertPath:   filepath.Join(mcndirs.GetMachineCertDir(), "cert.pem"),
			ClientKeyPath:    filepath.Join(mcndirs.GetMachineCertDir(), "key.pem"),
			ServerCertPath:   filepath.Join(mcndirs.GetMachineDir(), name, "server.pem"),
			ServerKeyPath:    filepath.Join(mcndirs.GetMachineDir(), name, "server-key.pem"),
			StorePath:        filepath.Join(mcndirs.GetMachineDir(), name),
			ServerCertSANs:   globalOpts.StringSlice("tls-san"),
		},
		EngineOptions: &engine.Options{
			ArbitraryFlags:   globalOpts.StringSlice("engine-opt"),
			Env:              globalOpts.StringSlice("engine-env"),
			InsecureRegistry: globalOpts.StringSlice("engine-insecure-registry"),
			Labels:           globalOpts.StringSlice("engine-label"),
			RegistryMirror:   globalOpts.StringSlice("engine-registry-mirror"),
			StorageDriver:    globalOpts.String("engine-storage-driver"),
			TLSVerify:        true,
			InstallURL:       globalOpts.String("engine-install-url"),
		},
		SwarmOptions: &swarm.Options{
			IsSwarm:        globalOpts.Bool("swarm"),
			Image:          globalOpts.String("swarm-image"),
			Master:         globalOpts.Bool("swarm-master"),
			Discovery:      globalOpts.String("swarm-discovery"),
			Address:        globalOpts.String("swarm-addr"),
			Host:           globalOpts.String("swarm-host"),
			Strategy:       globalOpts.String("swarm-strategy"),
			ArbitraryFlags: globalOpts.StringSlice("swarm-opt"),
			IsExperimental: globalOpts.Bool("swarm-experimental"),
		},
	}

	mcnFlags := h.Driver.GetCreateFlags()
	opts, err := parseFlags(form, mcnFlags, commands.SharedCreateFlags)
	if err != nil {
		return err
	}

	if err := h.Driver.SetConfigFromFlags(opts); err != nil {
		return fmt.Errorf("Error setting machine configuration from flags provided: %s", err)
	}

	if err := api.Create(h); err != nil {
		return err
	}

	if err := api.Save(h); err != nil {
		return fmt.Errorf("Error attempting to save store: %s", err)
	}

	return nil
}