Exemplo n.º 1
0
func SerialRun(config map[string]interface{}, raw_host_arr []string, start, end int) error {
	host_arr := raw_host_arr[start:end]
	user, _ := config["User"].(string)
	pwd, _ := config["Password"].(string)
	keyfile, _ := config["Keyfile"].(string)
	cmd, _ := config["Cmd"].(string)
	args, _ := config["Args"].(string)
	timeout, _ := config["Timeout"].(int)
	// Format command
	cmd = format_cmd(cmd, args)
	printer, _ := config["Output"].(io.Writer)
	err_printer, _ := config["Errout"].(io.Writer)

	mgr, _ := job.NewManager()

	for index, h := range host_arr {
		s3h := sssh.NewS3h(h, user, pwd, keyfile, cmd, printer, err_printer, mgr)
		s3h.Timeout = timeout
		go func() {
			if _, err := mgr.Receive(-1); err == nil {
				report(err_printer, fmt.Sprintf("%d/%d ", index+1+start, len(raw_host_arr)), s3h.Host, true)
				mgr.Send(s3h.Host, map[string]interface{}{"FROM": job.MASTER_ID, "BODY": "CONTINUE"})
			} else {
				mgr.Send(s3h.Host, map[string]interface{}{"FROM": job.MASTER_ID, "BODY": "STOP"})
			}
		}()
		s3h.Work()
	}
	return nil
}
Exemplo n.º 2
0
func Interact(config map[string]interface{}, host string) {
	user, _ := config["User"].(string)
	pwd, _ := config["Password"].(string)
	keyfile, _ := config["Keyfile"].(string)
	cmd, _ := config["Cmd"].(string)
	printer, _ := config["Output"].(io.Writer)
	err_printer, _ := config["Errout"].(io.Writer)

	mgr, _ := job.NewManager()
	s3h := sssh.NewS3h(host, user, pwd, keyfile, cmd, printer, err_printer, mgr)
	s3h.SysLogin()
}
Exemplo n.º 3
0
func ParallelRun(config map[string]interface{}, raw_host_arr []string, start, end int, tmpdir string) error {
	host_arr := raw_host_arr[start:end]
	user, _ := config["User"].(string)
	pwd, _ := config["Password"].(string)
	keyfile, _ := config["Keyfile"].(string)
	cmd, _ := config["Cmd"].(string)
	args, _ := config["Args"].(string)
	timeout, _ := config["Timeout"].(int)
	cmd = format_cmd(cmd, args)
	printer, _ := config["Output"].(io.Writer)
	err_printer, _ := config["Errout"].(io.Writer)

	// Create master, the master is used to manage go routines
	mgr, _ := job.NewManager()
	// Setup tmp directory for tmp files
	dir := fmt.Sprintf("%s/.s3h.%d", tmpdir, time.Now().Nanosecond())
	if err := os.Mkdir(dir, os.ModeDir|os.ModePerm); err != nil {
		return err
	}

	// Listen interrupt and kill signal, clear tmp files before exit.
	intqueue := make(chan os.Signal, 1)
	signal.Notify(intqueue, os.Interrupt, os.Kill)
	// If got interrupt or kill signal, delete tmp directory first, then exit with 1
	go func() {
		<-intqueue
		os.RemoveAll(dir)
		os.Exit(1)
	}()
	// If the complete all the tasks normlly, stop listenning signals and remove tmp directory
	defer func() {
		signal.Stop(intqueue)
		os.RemoveAll(dir)
	}()

	// Create tmp file for every host, then executes.
	var tmpfiles []*os.File
	for _, h := range host_arr {
		file, _ := os.Create(fmt.Sprintf("%s/%s", dir, h))
		err_file, _ := os.Create(fmt.Sprintf("%s/%s.err", dir, h))
		tmpfiles = append(tmpfiles, file, err_file)
		s3h := sssh.NewS3h(h, user, pwd, keyfile, cmd, file, err_file, mgr)
		s3h.Timeout = timeout
		go s3h.Work()
	}

	// show realtime view for each host
	var dc *dircat.DirCat
	if terminal.IsTerminal(1) {
		wlist := []string{}
		for _, h := range host_arr {
			wlist = append(wlist, fmt.Sprintf("%s/%s", dir, h))
		}
		dc, _ = dircat.Init(wlist...)
		go dc.Start()
	}
	// When a host is ready and request for continue, the master would echo CONTINUE for response to allow host to run
	size := len(host_arr)
	for {
		data, _ := mgr.Receive(-1)
		info, _ := data.(map[string]interface{})
		if info["BODY"].(string) == "BEGIN" {
			mgr.Send(info["FROM"].(string), map[string]interface{}{"FROM": job.MASTER_ID, "BODY": "CONTINUE"})
		} else if info["BODY"].(string) == "END" {
			// If master gets every hosts' END message, then it stop waiting.
			size -= 1
			if size == 0 {
				break
			}
		}
	}
	if terminal.IsTerminal(1) {
		dc.Stop()
	}
	// close tmp files
	for _, f := range tmpfiles {
		f.Close()
	}
	// Merge all the hosts' output to the output file
	for _, h := range host_arr {
		report(os.Stderr, "", h, true)
		// copy err output first
		err_fn := fmt.Sprintf("%s/%s.err", dir, h)
		err_src, _ := os.Open(err_fn)
		io.Copy(err_printer, err_src)
		err_src.Close()
		// copy output then
		fn := fmt.Sprintf("%s/%s", dir, h)
		src, _ := os.Open(fn)
		io.Copy(printer, src)
		src.Close()
		// remove tmp file
		os.Remove(err_fn)
		os.Remove(fn)
	}
	return nil
}