Exemple #1
0
func cmdConfig(c *cli.Context) error {
	// Ensure that log messages always go to stderr when this command is
	// being run (it is intended to be run in a subshell)
	log.SetOutWriter(os.Stderr)

	if len(c.Args()) != 1 {
		return ErrExpectedOneMachine
	}

	host, err := getFirstArgHost(c)
	if err != nil {
		return err
	}

	dockerHost, authOptions, err := runConnectionBoilerplate(host, c)
	if err != nil {
		return fmt.Errorf("Error running connection boilerplate: %s", err)
	}

	log.Debug(dockerHost)

	fmt.Printf("--tlsverify --tlscacert=%q --tlscert=%q --tlskey=%q -H=%s",
		authOptions.CaCertPath, authOptions.ClientCertPath, authOptions.ClientKeyPath, dockerHost)

	return nil
}
Exemple #2
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func cmdSsh(c *cli.Context) error {
	name := c.Args().First()
	if name == "" {
		return ErrExpectedOneMachine
	}

	store := getStore(c)
	host, err := loadHost(store, name)
	if err != nil {
		return err
	}

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

	if currentState != state.Running {
		return fmt.Errorf("Error: Cannot run SSH command: Host %q is not running", host.Name)
	}

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

	return client.Shell(c.Args().Tail()...)
}
Exemple #3
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func cmdSsh(c *cli.Context) {
	args := c.Args()
	name := args.First()

	if name == "" {
		fatal("Error: Please specify a machine name.")
	}

	store := getStore(c)
	host, err := loadHost(store, name)
	if err != nil {
		fatal(err)
	}

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

	if currentState != state.Running {
		fatalf("Error: Cannot run SSH command: Host %q is not running", host.Name)
	}

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

	if err := client.Shell(c.Args().Tail()...); err != nil {
		fatal(err)
	}
}
Exemple #4
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func cmdScp(c *cli.Context) error {
	hostLoader = &ScpHostLoader{}

	args := c.Args()
	if len(args) != 2 {
		cli.ShowCommandHelp(c, "scp")
		return errWrongNumberArguments
	}

	// TODO: Check that "-3" flag is available in user's version of scp.
	// It is on every system I've checked, but the manual mentioned it's "newer"
	sshArgs := append(baseSSHArgs, "-3")

	if c.Bool("recursive") {
		sshArgs = append(sshArgs, "-r")
	}

	src := args[0]
	dest := args[1]

	store := getStore(c)

	cmd, err := getScpCmd(src, dest, sshArgs, store)
	if err != nil {
		return err
	}

	return runCmdWithStdIo(*cmd)
}
Exemple #5
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func getStore(c *cli.Context) persist.Store {
	certInfo := getCertPathInfoFromContext(c)
	return &persist.Filestore{
		Path:             c.GlobalString("storage-path"),
		CaCertPath:       certInfo.CaCertPath,
		CaPrivateKeyPath: certInfo.CaPrivateKeyPath,
	}
}
Exemple #6
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func cmdRegenerateCerts(c *cli.Context) {
	force := c.Bool("force")
	if force || confirmInput("Regenerate TLS machine certs?  Warning: this is irreversible.") {
		log.Infof("Regenerating TLS certificates")
		if err := runActionWithContext("configureAuth", c); err != nil {
			fatal(err)
		}
	}
}
Exemple #7
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func cmdCreateOuter(c *cli.Context) {
	driverName := flagHackLookup("--driver")

	// We didn't recognize the driver name.
	if driverName == "" {
		cli.ShowCommandHelp(c, "create")
		return
	}

	name := c.Args().First()

	// TODO: Fix hacky JSON solution
	bareDriverData, err := json.Marshal(&drivers.BaseDriver{
		MachineName: name,
	})
	if err != nil {
		fatalf("Error attempting to marshal bare driver data: %s", err)
	}

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

	// TODO: So much flag manipulation and voodoo here, it seems to be
	// asking for trouble.
	//
	// mcnFlags is the data we get back over the wire (type mcnflag.Flag)
	// to indicate which parameters are available.
	mcnFlags := driver.GetCreateFlags()

	// This bit will actually make "create" display the correct flags based
	// on the requested driver.
	cliFlags, err := convertMcnFlagsToCliFlags(mcnFlags)
	if err != nil {
		fatalf("Error trying to convert provided driver flags to cli flags: %s", err)
	}
	for i := range c.App.Commands {
		cmd := &c.App.Commands[i]
		if cmd.HasName("create") {
			cmd = addDriverFlagsToCommand(cliFlags, cmd)
		}
	}

	if err := driver.Close(); err != nil {
		fatal(err)
	}

	if err := c.App.Run(os.Args); err != nil {
		fatal(err)
	}
}
Exemple #8
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func cmdStatus(c *cli.Context) {
	if len(c.Args()) != 1 {
		fatal(ErrExpectedOneMachine)
	}

	host := getFirstArgHost(c)
	currentState, err := host.Driver.GetState()
	if err != nil {
		log.Errorf("error getting state for host %s: %s", host.Name, err)
	}

	log.Info(currentState)
}
Exemple #9
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func getHostsFromContext(c *cli.Context) ([]*host.Host, error) {
	store := getStore(c)
	hosts := []*host.Host{}

	for _, hostName := range c.Args() {
		h, err := loadHost(store, hostName)
		if err != nil {
			return nil, fmt.Errorf("Could not load host %q: %s", hostName, err)
		}
		hosts = append(hosts, h)
	}

	return hosts, nil
}
Exemple #10
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// 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 *cli.Context) cert.CertPathInfo {
	caCertPath := c.GlobalString("tls-ca-cert")
	caKeyPath := c.GlobalString("tls-ca-key")
	clientCertPath := c.GlobalString("tls-client-cert")
	clientKeyPath := c.GlobalString("tls-client-key")

	if caCertPath == "" {
		caCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "ca.pem")
	}

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

	if clientCertPath == "" {
		clientCertPath = filepath.Join(mcndirs.GetMachineCertDir(), "cert.pem")
	}

	if clientKeyPath == "" {
		clientKeyPath = filepath.Join(mcndirs.GetMachineCertDir(), "key.pem")
	}

	return cert.CertPathInfo{
		CaCertPath:       caCertPath,
		CaPrivateKeyPath: caKeyPath,
		ClientCertPath:   clientCertPath,
		ClientKeyPath:    clientKeyPath,
	}
}
Exemple #11
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func cmdActive(c *cli.Context) {
	if len(c.Args()) > 0 {
		fatal("Error: Too many arguments given.")
	}

	store := getStore(c)
	host, err := getActiveHost(store)
	if err != nil {
		fatalf("Error getting active host: %s", err)
	}

	if host != nil {
		fmt.Println(host.Name)
	}
}
Exemple #12
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func cmdRegenerateCerts(c *cli.Context) error {
	if !c.Bool("force") {
		ok, err := confirmInput("Regenerate TLS machine certs?  Warning: this is irreversible.")
		if err != nil {
			return err
		}

		if !ok {
			return nil
		}
	}

	log.Infof("Regenerating TLS certificates")

	return runActionWithContext("configureAuth", c)
}
Exemple #13
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func cmdConfig(c *cli.Context) {
	if len(c.Args()) != 1 {
		fatal(ErrExpectedOneMachine)
	}

	h := getFirstArgHost(c)

	dockerHost, authOptions, err := runConnectionBoilerplate(h, c)
	if err != nil {
		fatalf("Error running connection boilerplate: %s", err)
	}

	log.Debug(dockerHost)

	fmt.Printf("--tlsverify --tlscacert=%q --tlscert=%q --tlskey=%q -H=%s",
		authOptions.CaCertPath, authOptions.ClientCertPath, authOptions.ClientKeyPath, dockerHost)
}
Exemple #14
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func cmdInspect(c *cli.Context) error {
	if len(c.Args()) == 0 {
		cli.ShowCommandHelp(c, "inspect")
		return ErrExpectedOneMachine
	}

	host, err := getFirstArgHost(c)
	if err != nil {
		return err
	}

	tmplString := c.String("format")
	if tmplString != "" {
		var tmpl *template.Template
		var err error
		if tmpl, err = template.New("").Funcs(funcMap).Parse(tmplString); err != nil {
			return fmt.Errorf("Template parsing error: %v\n", err)
		}

		jsonHost, err := json.Marshal(host)
		if err != nil {
			return err
		}

		obj := make(map[string]interface{})
		if err := json.Unmarshal(jsonHost, &obj); err != nil {
			return err
		}

		if err := tmpl.Execute(os.Stdout, obj); err != nil {
			return err
		}

		os.Stdout.Write([]byte{'\n'})
	} else {
		prettyJSON, err := json.MarshalIndent(host, "", "    ")
		if err != nil {
			return err
		}

		fmt.Println(string(prettyJSON))
	}

	return nil
}
Exemple #15
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func cmdActive(c *cli.Context) error {
	if len(c.Args()) > 0 {
		return errTooManyArguments
	}

	store := getStore(c)

	host, err := getActiveHost(store)
	if err != nil {
		return fmt.Errorf("Error getting active host: %s", err)
	}

	if host != nil {
		fmt.Println(host.Name)
	}

	return nil
}
Exemple #16
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func cmdUrl(c *cli.Context) error {
	if len(c.Args()) != 1 {
		return ErrExpectedOneMachine
	}

	host, err := getFirstArgHost(c)
	if err != nil {
		return err
	}

	url, err := host.GetURL()
	if err != nil {
		return err
	}

	fmt.Println(url)

	return nil
}
Exemple #17
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func cmdStatus(c *cli.Context) error {
	if len(c.Args()) != 1 {
		return ErrExpectedOneMachine
	}

	host, err := getFirstArgHost(c)
	if err != nil {
		return err
	}

	currentState, err := host.Driver.GetState()
	if err != nil {
		log.Errorf("error getting state for host %s: %s", host.Name, err)
	}

	log.Info(currentState)

	return nil
}
Exemple #18
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func cmdRm(c *cli.Context) {
	if len(c.Args()) == 0 {
		cli.ShowCommandHelp(c, "rm")
		fatal("You must specify a machine name")
	}

	force := c.Bool("force")
	store := getStore(c)

	for _, hostName := range c.Args() {
		h, err := loadHost(store, hostName)
		if err != nil {
			fatalf("Error removing host %q: %s", hostName, err)
		}
		if err := h.Driver.Remove(); err != nil {
			if !force {
				log.Errorf("Provider error removing machine %q: %s", hostName, err)
				continue
			}
		}

		if err := store.Remove(hostName); err != nil {
			log.Errorf("Error removing machine %q from store: %s", hostName, err)
		} else {
			log.Infof("Successfully removed %s", hostName)
		}
	}
}
Exemple #19
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func getDriverOpts(c *cli.Context, mcnflags []mcnflag.Flag) drivers.DriverOptions {
	// TODO: This function is pretty damn YOLO and would benefit from some
	// sanity checking around types and assertions.
	//
	// But, we need it so that we can actually send the flags for creating
	// a machine over the wire (cli.Context is a no go since there is so
	// much stuff in it).
	driverOpts := rpcdriver.RpcFlags{
		Values: make(map[string]interface{}),
	}

	for _, f := range mcnflags {
		driverOpts.Values[f.String()] = f.Default()

		// Hardcoded logic for boolean... :(
		if f.Default() == nil {
			driverOpts.Values[f.String()] = false
		}
	}

	for _, name := range c.FlagNames() {
		getter, ok := c.Generic(name).(flag.Getter)
		if !ok {
			// TODO: This is pretty hacky.  StringSlice is the only
			// type so far we have to worry about which is not a
			// Getter, though.
			driverOpts.Values[name] = c.StringSlice(name)
			continue
		}
		driverOpts.Values[name] = getter.Get()
	}

	return driverOpts
}
Exemple #20
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func getFirstArgHost(c *cli.Context) *host.Host {
	store := getStore(c)
	hostName := c.Args().First()

	exists, err := store.Exists(hostName)
	if err != nil {
		fatalf("Error checking if host %q exists: %s", hostName, err)
	}

	if !exists {
		fatalf("Host %q does not exist", hostName)
	}

	h, err := loadHost(store, hostName)
	if err != nil {
		// I guess I feel OK with bailing here since if we can't get
		// the host reliably we're definitely not going to be able to
		// do anything else interesting, but also this premature exit
		// feels wrong to me.  Let's revisit it later.
		fatalf("Error trying to get host %q: %s", hostName, err)
	}
	return h
}
Exemple #21
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func runConnectionBoilerplate(h *host.Host, c *cli.Context) (string, *auth.AuthOptions, error) {
	hostState, err := h.Driver.GetState()
	if err != nil {
		// TODO: This is a common operation and should have a commonly
		// defined error.
		return "", &auth.AuthOptions{}, fmt.Errorf("Error trying to get host state: %s", err)
	}
	if hostState != state.Running {
		return "", &auth.AuthOptions{}, fmt.Errorf("%s is not running. Please start it in order to use the connection settings.", h.Name)
	}

	dockerHost, err := h.Driver.GetURL()
	if err != nil {
		return "", &auth.AuthOptions{}, fmt.Errorf("Error getting driver URL: %s", err)
	}

	if c.Bool("swarm") {
		var err error
		dockerHost, err = parseSwarm(dockerHost, h)
		if err != nil {
			return "", &auth.AuthOptions{}, fmt.Errorf("Error parsing swarm: %s", err)
		}
	}

	u, err := url.Parse(dockerHost)
	if err != nil {
		return "", &auth.AuthOptions{}, fmt.Errorf("Error parsing URL: %s", err)
	}

	authOptions := h.HostOptions.AuthOptions

	if err := checkCert(u.Host, authOptions, c); err != nil {
		return "", &auth.AuthOptions{}, fmt.Errorf("Error checking and/or regenerating the certs: %s", err)
	}

	return dockerHost, authOptions, nil
}
Exemple #22
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func cmdScp(c *cli.Context) error {
	args := c.Args()
	if len(args) != 2 {
		cli.ShowCommandHelp(c, "scp")
		return errWrongNumberArguments
	}

	src := args[0]
	dest := args[1]

	store := getStore(c)
	hostInfoLoader := &storeHostInfoLoader{store}

	cmd, err := getScpCmd(src, dest, c.Bool("recursive"), hostInfoLoader)
	if err != nil {
		return err
	}

	if err := runCmdWithStdIo(*cmd); err != nil {
		return err
	}

	return runCmdWithStdIo(*cmd)
}
Exemple #23
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func cmdInspect(c *cli.Context) {
	if len(c.Args()) == 0 {
		cli.ShowCommandHelp(c, "inspect")
		fatal("You must specify a machine name")
	}

	tmplString := c.String("format")
	if tmplString != "" {
		var tmpl *template.Template
		var err error
		if tmpl, err = template.New("").Funcs(funcMap).Parse(tmplString); err != nil {
			fatalf("Template parsing error: %v\n", err)
		}

		jsonHost, err := json.Marshal(getFirstArgHost(c))
		if err != nil {
			fatal(err)
		}
		obj := make(map[string]interface{})
		if err := json.Unmarshal(jsonHost, &obj); err != nil {
			fatal(err)
		}

		if err := tmpl.Execute(os.Stdout, obj); err != nil {
			fatal(err)
		}
		os.Stdout.Write([]byte{'\n'})
	} else {
		prettyJSON, err := json.MarshalIndent(getFirstArgHost(c), "", "    ")
		if err != nil {
			fatal(err)
		}

		fmt.Println(string(prettyJSON))
	}
}
Exemple #24
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func cmdSsh(c *cli.Context) error {
	// Check for help flag -- Needed due to SkipFlagParsing
	for _, arg := range c.Args() {
		if arg == "-help" || arg == "--help" || arg == "-h" {
			cli.ShowCommandHelp(c, "ssh")
			return nil
		}
	}

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

	store := getStore(c)
	host, err := loadHost(store, name)
	if err != nil {
		return err
	}

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

	if currentState != state.Running {
		return fmt.Errorf("Error: Cannot run SSH command: Host %q is not running", host.Name)
	}

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

	return client.Shell(c.Args().Tail()...)
}
Exemple #25
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func cmdEnv(c *cli.Context) {
	// Ensure that log messages always go to stderr when this command is
	// being run (it is intended to be run in a subshell)
	log.SetOutWriter(os.Stderr)

	if len(c.Args()) != 1 && !c.Bool("unset") {
		fatal(improperEnvArgsError)
	}

	h := getFirstArgHost(c)

	dockerHost, authOptions, err := runConnectionBoilerplate(h, c)
	if err != nil {
		fatalf("Error running connection boilerplate: %s", err)
	}

	userShell := c.String("shell")
	if userShell == "" {
		shell, err := detectShell()
		if err != nil {
			fatal(err)
		}
		userShell = shell
	}

	t := template.New("envConfig")

	usageHint := generateUsageHint(c.App.Name, c.Args().First(), userShell, c.Bool("no-proxy"), c.Bool("swarm"))

	shellCfg := &ShellConfig{
		DockerCertPath:  authOptions.CertDir,
		DockerHost:      dockerHost,
		DockerTLSVerify: "1",
		UsageHint:       usageHint,
		MachineName:     h.Name,
	}

	if c.Bool("no-proxy") {
		ip, err := h.Driver.GetIP()
		if err != nil {
			fatalf("Error getting host IP: %s", err)
		}

		// first check for an existing lower case no_proxy var
		noProxyVar := "no_proxy"
		noProxyValue := os.Getenv("no_proxy")

		// otherwise default to allcaps HTTP_PROXY
		if noProxyValue == "" {
			noProxyVar = "NO_PROXY"
			noProxyValue = os.Getenv("NO_PROXY")
		}

		// add the docker host to the no_proxy list idempotently
		switch {
		case noProxyValue == "":
			noProxyValue = ip
		case strings.Contains(noProxyValue, ip):
			//ip already in no_proxy list, nothing to do
		default:
			noProxyValue = fmt.Sprintf("%s,%s", noProxyValue, ip)
		}

		shellCfg.NoProxyVar = noProxyVar
		shellCfg.NoProxyValue = noProxyValue
	}

	// unset vars
	if c.Bool("unset") {
		switch userShell {
		case "fish":
			shellCfg.Prefix = "set -e "
			shellCfg.Delimiter = ""
			shellCfg.Suffix = ";\n"
		case "powershell":
			shellCfg.Prefix = "Remove-Item Env:\\\\"
			shellCfg.Delimiter = ""
			shellCfg.Suffix = "\n"
		case "cmd":
			// since there is no way to unset vars in cmd just reset to empty
			shellCfg.DockerCertPath = ""
			shellCfg.DockerHost = ""
			shellCfg.DockerTLSVerify = ""
			shellCfg.Prefix = "set "
			shellCfg.Delimiter = "="
			shellCfg.Suffix = "\n"
		default:
			shellCfg.Prefix = "unset "
			shellCfg.Delimiter = " "
			shellCfg.Suffix = "\n"
		}

		tmpl, err := t.Parse(envTmpl)
		if err != nil {
			fatal(err)
		}

		if err := tmpl.Execute(os.Stdout, shellCfg); err != nil {
			fatal(err)
		}
		return
	}

	switch userShell {
	case "fish":
		shellCfg.Prefix = "set -x "
		shellCfg.Suffix = "\";\n"
		shellCfg.Delimiter = " \""
	case "powershell":
		shellCfg.Prefix = "$Env:"
		shellCfg.Suffix = "\"\n"
		shellCfg.Delimiter = " = \""
	case "cmd":
		shellCfg.Prefix = "set "
		shellCfg.Suffix = "\n"
		shellCfg.Delimiter = "="
	default:
		shellCfg.Prefix = "export "
		shellCfg.Suffix = "\"\n"
		shellCfg.Delimiter = "=\""
	}

	tmpl, err := t.Parse(envTmpl)
	if err != nil {
		fatal(err)
	}

	if err := tmpl.Execute(os.Stdout, shellCfg); err != nil {
		fatal(err)
	}
}
Exemple #26
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func cmdLs(c *cli.Context) {
	quiet := c.Bool("quiet")
	filters, err := parseFilters(c.StringSlice("filter"))
	if err != nil {
		fatal(err)
	}

	store := getStore(c)
	hostList, err := listHosts(store)
	if err != nil {
		fatal(err)
	}

	hostList = filterHosts(hostList, filters)

	// Just print out the names if we're being quiet
	if quiet {
		for _, host := range hostList {
			fmt.Println(host.Name)
		}
		return
	}

	swarmMasters := make(map[string]string)
	swarmInfo := make(map[string]string)

	w := tabwriter.NewWriter(os.Stdout, 5, 1, 3, ' ', 0)
	fmt.Fprintln(w, "NAME\tACTIVE\tDRIVER\tSTATE\tURL\tSWARM")

	for _, host := range hostList {
		swarmOptions := host.HostOptions.SwarmOptions
		if swarmOptions.Master {
			swarmMasters[swarmOptions.Discovery] = host.Name
		}

		if swarmOptions.Discovery != "" {
			swarmInfo[host.Name] = swarmOptions.Discovery
		}
	}

	items := getHostListItems(hostList)

	sortHostListItemsByName(items)

	for _, item := range items {
		activeString := "-"
		if item.Active {
			activeString = "*"
		}

		swarmInfo := ""

		if item.SwarmOptions.Discovery != "" {
			swarmInfo = swarmMasters[item.SwarmOptions.Discovery]
			if item.SwarmOptions.Master {
				swarmInfo = fmt.Sprintf("%s (master)", swarmInfo)
			}
		}
		fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\n",
			item.Name, activeString, item.DriverName, item.State, item.URL, swarmInfo)
	}

	w.Flush()
}
Exemple #27
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func cmdCreateInner(c *cli.Context) {
	if len(c.Args()) > 1 {
		fatalf("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 == "" {
		cli.ShowCommandHelp(c, "create")
		fatal("Error: No machine name specified.")
	}

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

	if err := validateSwarmDiscovery(c.String("swarm-discovery")); err != nil {
		fatalf("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 {
		fatalf("Error attempting to marshal bare driver data: %s", err)
	}

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

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

	h.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"),
		},
	}

	exists, err := store.Exists(h.Name)
	if err != nil {
		fatalf("Error checking if host exists: %s", err)
	}
	if exists {
		fatal(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 {
		fatalf("Error setting machine configuration from flags provided: %s", err)
	}

	if err := libmachine.Create(store, h); err != nil {
		fatalf("Error creating machine: %s", err)
	}

	if err := saveHost(store, h); err != nil {
		fatalf("Error attempting to save store: %s", err)
	}

	log.Infof("To see how to connect Docker to this machine, run: %s", fmt.Sprintf("%s env %s", os.Args[0], name))
}