예제 #1
0
파일: main.go 프로젝트: couchbase/cbgt
func main() {
	flag.Parse()

	if flags.Help {
		flag.Usage()
		os.Exit(2)
	}

	if flags.Version {
		fmt.Printf("%s main: %s, data: %s\n",
			path.Base(os.Args[0]), cbgt.VERSION, cbgt.VERSION)
		os.Exit(0)
	}

	cmd.MainCommon(cbgt.VERSION, flagAliases)

	options := cmd.ParseOptions(flags.Options, "CBGTCTL_ENV_OPTIONS", nil)

	cfg, err := cmd.MainCfgClient(path.Base(os.Args[0]), flags.CfgConnect)
	if err != nil {
		log.Fatalf("%v", err)
		return
	}

	if flags.IndexTypes != "" {
		cmd.RegisterIndexTypes(strings.Split(flags.IndexTypes, ","))
	}

	nodesToRemove := []string(nil)
	if len(flags.RemoveNodes) > 0 {
		nodesToRemove = strings.Split(flags.RemoveNodes, ",")
	}

	steps := map[string]bool{}
	if flags.Steps != "" {
		steps = cbgt.StringsToMap(strings.Split(flags.Steps, ","))
	}

	// ------------------------------------------------

	if steps != nil && steps["rebalance"] {
		steps["rebalance_"] = true
		steps["unregister"] = true
		steps["planner"] = true
	}

	// ------------------------------------------------

	if steps != nil && steps["rebalance_"] {
		log.Printf("main: step rebalance_")

		err := rebalance.RunRebalance(cfg, flags.Server, options,
			nodesToRemove, flags.FavorMinNodes,
			flags.DryRun, flags.Verbose, nil)
		if err != nil {
			log.Fatalf("main: RunRebalance, err: %v", err)
			return
		}
	}

	// ------------------------------------------------

	err = cmd.PlannerSteps(steps, cfg, cbgt.VERSION,
		flags.Server, options, nodesToRemove, flags.DryRun, nil)
	if err != nil {
		log.Fatalf("main: PlannerSteps, err: %v", err)
		return
	}

	// ------------------------------------------------

	var c *ctl.Ctl

	if steps != nil && (steps["service"] || steps["rest"] || steps["prompt"]) {
		c, err = ctl.StartCtl(cfg, flags.Server, options, ctl.CtlOptions{
			DryRun:             flags.DryRun,
			Verbose:            flags.Verbose,
			FavorMinNodes:      flags.FavorMinNodes,
			WaitForMemberNodes: flags.WaitForMemberNodes,
		})
		if err != nil {
			log.Fatalf("main: StartCtl, err: %v", err)
			return
		}

		if steps["service"] {
			// TODO.
		}

		if steps["rest"] {
			bindHttp := flags.BindHttp
			if bindHttp[0] == ':' {
				bindHttp = "localhost" + bindHttp
			}
			if strings.HasPrefix(bindHttp, "0.0.0.0:") {
				bindHttp = "localhost" + bindHttp[len("0.0.0.0"):]
			}

			http.Handle("/", newRestRouter(c))

			go func() {
				log.Printf("------------------------------------------------------------")
				log.Printf("REST API is available: http://%s", bindHttp)
				log.Printf("------------------------------------------------------------")

				err := http.ListenAndServe(bindHttp, nil) // Blocks.
				if err != nil {
					log.Fatalf("main: listen, err: %v\n"+
						"  Please check that your -bindHttp parameter (%q)\n"+
						"  is correct and available.", err, bindHttp)
				}
			}()
		}

		if steps["prompt"] {
			go runCtlPrompt(c)
		}

		<-make(chan struct{})
	}

	// ------------------------------------------------

	log.Printf("main: done")
}
예제 #2
-1
파일: main.go 프로젝트: couchbase/cbft
func main() {
	platform.HideConsole(true)
	defer platform.HideConsole(false)

	flag.Parse()

	if flags.Help {
		flag.Usage()
		os.Exit(2)
	}

	if flags.Version {
		fmt.Printf("%s main: %s, data: %s\n", path.Base(os.Args[0]),
			VERSION, cbgt.VERSION)
		os.Exit(0)
	}

	if os.Getenv("GOMAXPROCS") == "" {
		runtime.GOMAXPROCS(runtime.NumCPU())
	}

	mr, err := cbgt.NewMsgRing(os.Stderr, 1000)
	if err != nil {
		log.Fatalf("main: could not create MsgRing, err: %v", err)
	}
	log.SetOutput(mr)
	log.SetLoggerCallback(LoggerFunc)

	log.Printf("main: %s started (%s/%s)",
		os.Args[0], VERSION, cbgt.VERSION)

	rand.Seed(time.Now().UTC().UnixNano())

	// disabling as speculative change for
	// https://issues.couchbase.com/browse/MB-20002
	// theory being that invoking signal.Notify()
	// interferes with forestdb signal handler
	// go cmd.DumpOnSignalForPlatform()

	MainWelcome(flagAliases)

	s, err := os.Stat(flags.DataDir)
	if err != nil {
		if os.IsNotExist(err) {
			if flags.DataDir == DEFAULT_DATA_DIR {
				log.Printf("main: creating data directory, dataDir: %s",
					flags.DataDir)
				err = os.Mkdir(flags.DataDir, 0700)
				if err != nil {
					log.Fatalf("main: could not create data directory,"+
						" dataDir: %s, err: %v", flags.DataDir, err)
				}
			} else {
				log.Fatalf("main: data directory does not exist,"+
					" dataDir: %s", flags.DataDir)
				return
			}
		} else {
			log.Fatalf("main: could not access data directory,"+
				" dataDir: %s, err: %v", flags.DataDir, err)
			return
		}
	} else {
		if !s.IsDir() {
			log.Fatalf("main: not a directory, dataDir: %s", flags.DataDir)
			return
		}
	}

	wd, err := os.Getwd()
	if err != nil {
		log.Fatalf("main: os.Getwd, err: %#v", err)
		return
	}
	log.Printf("main: curr dir: %q", wd)

	dataDirAbs, err := filepath.Abs(flags.DataDir)
	if err != nil {
		log.Fatalf("main: filepath.Abs, err: %#v", err)
		return
	}
	log.Printf("main: data dir: %q", dataDirAbs)

	uuid := flags.UUID
	if uuid != "" {
		uuidPath :=
			flags.DataDir + string(os.PathSeparator) + cmdName + ".uuid"

		err = ioutil.WriteFile(uuidPath, []byte(uuid), 0600)
		if err != nil {
			log.Fatalf("main: could not write uuidPath: %s\n"+
				"  Please check that your -data/-dataDir parameter (%q)\n"+
				"  is to a writable directory where %s can persist data.",
				uuidPath, flags.DataDir, cmdName)
			return
		}
	}

	if uuid == "" {
		uuid, err = cmd.MainUUID(cmdName, flags.DataDir)
		if err != nil {
			log.Fatalf("%v", err)
			return
		}
	}

	options := cmd.ParseOptions(flags.Options, "CBFT_ENV_OPTIONS",
		map[string]string{
			"managerLoadDataDir": "async",
			"authType":           flags.AuthType,
		})

	err = InitHttpOptions(options)
	if err != nil {
		log.Fatalf("main: InitHttpOptions, err: %v", err)
		return
	}

	// User may supply a comma-separated list of HOST:PORT values for
	// http addresss/port listening, but only the first http entry
	// is used for cbgt node and Cfg registration.
	bindHttpList := strings.Split(flags.BindHttp, ",")

	// If cfg is down, we error, leaving it to some user-supplied
	// outside watchdog to backoff and restart/retry.
	cfg, err := cmd.MainCfgEx(cmdName, flags.CfgConnect,
		bindHttpList[0], flags.Register, flags.DataDir, uuid, options)
	if err != nil {
		if err == cmd.ErrorBindHttp {
			log.Fatalf("%v", err)
			return
		}
		log.Fatalf("main: could not start cfg, cfgConnect: %s, err: %v\n"+
			"  Please check that your -cfg/-cfgConnect parameter (%q)\n"+
			"  is correct and/or that your configuration provider\n"+
			"  is available.",
			flags.CfgConnect, err, flags.CfgConnect)
		return
	}

	var tagsArr []string
	if flags.Tags != "" {
		tagsArr = strings.Split(flags.Tags, ",")
	}

	router, err := MainStart(cfg, uuid, tagsArr,
		flags.Container, flags.Weight, flags.Extras,
		bindHttpList[0], flags.DataDir,
		flags.StaticDir, flags.StaticETag,
		flags.Server, flags.Register, mr, options)
	if err != nil {
		log.Fatal(err)
	}

	if flags.Register == "unknown" {
		log.Printf("main: unregistered node; now exiting")
		os.Exit(0)
	}

	http.Handle("/", router)

	anyHostPorts := map[string]bool{}

	// Bind to 0.0.0.0's first for http listening.
	for _, bindHttp := range bindHttpList {
		if strings.HasPrefix(bindHttp, "0.0.0.0:") {
			go MainServeHttp("http", bindHttp, nil, "", "")

			anyHostPorts[bindHttp] = true
		}
	}

	for i := len(bindHttpList) - 1; i >= 1; i-- {
		go MainServeHttp("http", bindHttpList[i], anyHostPorts, "", "")
	}

	if flags.BindHttps != "" {
		bindHttpsList := strings.Split(flags.BindHttps, ",")

		// Bind to 0.0.0.0's first for https listening.
		for _, bindHttps := range bindHttpsList {
			if strings.HasPrefix(bindHttps, "0.0.0.0:") {
				go MainServeHttp("https", bindHttps, nil,
					flags.TlsCertFile, flags.TlsKeyFile)

				anyHostPorts[bindHttps] = true
			}
		}

		for _, bindHttps := range bindHttpsList {
			go MainServeHttp("https", bindHttps, anyHostPorts,
				flags.TlsCertFile, flags.TlsKeyFile)
		}
	}

	MainServeHttp("http", bindHttpList[0], anyHostPorts, "", "")

	<-(make(chan struct{})) // Block forever.
}