uptimeMonitor    monitor.Monitor
)

const (
	interval = 100 * time.Millisecond
)

var _ = Describe("UptimeMonitor", func() {
	BeforeEach(func() {
		fakeEventEmitter = fake.NewFakeEventEmitter("MonitorTest")
		sender := metric_sender.NewMetricSender(fakeEventEmitter)
		batcher := metricbatcher.New(sender, 100*time.Millisecond)

		metrics.Initialize(sender, batcher)

		uptimeMonitor = monitor.NewUptimeMonitor(interval)
		go uptimeMonitor.Start()
	})

	AfterEach(func() {
		fakeEventEmitter.Close()
	})

	Context("stops automatically", func() {

		AfterEach(func() {
			uptimeMonitor.Stop()
		})

		PIt("returns a value metric containing uptime after specified time", func() {
			Eventually(fakeEventEmitter.GetMessages).Should(HaveLen(1))
Exemple #2
0
func main() {
	flag.Parse()

	config, err := config.ParseConfig(*logLevel, *configFile)
	if err != nil {
		panic(fmt.Errorf("Unable to parse config: %s", err))
	}

	transport := &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: config.SkipCertVerify}}
	http.DefaultClient.Transport = transport

	ipAddress, err := localip.LocalIP()
	if err != nil {
		panic(fmt.Errorf("Unable to resolve own IP address: %s", err))
	}

	log := logger.NewLogger(*logLevel, *logFilePath, "loggregator trafficcontroller", config.Syslog)
	log.Info("Startup: Setting up the loggregator traffic controller")

	dropsonde.Initialize(net.JoinHostPort(config.MetronHost, strconv.Itoa(config.MetronPort)), "LoggregatorTrafficController")

	go func() {
		err := http.ListenAndServe(net.JoinHostPort(ipAddress, pprofPort), nil)
		if err != nil {
			log.Errorf("Error starting pprof server: %s", err.Error())
		}
	}()

	uptimeMonitor := monitor.NewUptimeMonitor(time.Duration(config.MonitorIntervalSeconds) * time.Second)
	go uptimeMonitor.Start()
	defer uptimeMonitor.Stop()

	etcdAdapter := defaultStoreAdapterProvider(config.EtcdUrls, config.EtcdMaxConcurrentRequests)
	err = etcdAdapter.Connect()
	if err != nil {
		panic(fmt.Errorf("Unable to connect to ETCD: %s", err))
	}

	logAuthorizer := authorization.NewLogAccessAuthorizer(*disableAccessControl, config.ApiHost)

	uaaClient := uaa_client.NewUaaClient(config.UaaHost, config.UaaClientId, config.UaaClientSecret)
	adminAuthorizer := authorization.NewAdminAccessAuthorizer(*disableAccessControl, &uaaClient)

	// TODO: The preferredProtocol of udp tells the finder to pull out the Doppler URLs from the legacy ETCD endpoint.
	// Eventually we'll have a separate websocket client pool
	finder := dopplerservice.NewFinder(etcdAdapter, int(config.DopplerPort), []string{"udp"}, "", log)
	finder.Start()
	// Draining the finder's events channel in order to not block the finder from handling etcd events.
	go func() {
		for {
			finder.Next()
		}
	}()

	var accessMiddleware, legacyAccessMiddleware func(middleware.HttpHandler) *middleware.AccessHandler
	if config.SecurityEventLog != "" {
		accessLog, err := os.OpenFile(config.SecurityEventLog, os.O_APPEND|os.O_WRONLY, os.ModeAppend)
		if err != nil {
			panic(fmt.Errorf("Unable to open access log: %s", err))
		}
		defer func() {
			accessLog.Sync()
			accessLog.Close()
		}()
		accessLogger := accesslogger.New(accessLog, log)
		accessMiddleware = middleware.Access(accessLogger, ipAddress, config.OutgoingDropsondePort, log)
		legacyAccessMiddleware = middleware.Access(accessLogger, ipAddress, config.OutgoingPort, log)
	}

	dopplerCgc := channel_group_connector.NewChannelGroupConnector(finder, newDropsondeWebsocketListener, marshaller.DropsondeLogMessage, log)
	dopplerHandler := http.Handler(dopplerproxy.NewDopplerProxy(logAuthorizer, adminAuthorizer, dopplerCgc, dopplerproxy.TranslateFromDropsondePath, "doppler."+config.SystemDomain, log))
	if accessMiddleware != nil {
		dopplerHandler = accessMiddleware(dopplerHandler)
	}
	startOutgoingProxy(net.JoinHostPort(ipAddress, strconv.FormatUint(uint64(config.OutgoingDropsondePort), 10)), dopplerHandler)

	legacyCgc := channel_group_connector.NewChannelGroupConnector(finder, newLegacyWebsocketListener, marshaller.LoggregatorLogMessage, log)
	legacyHandler := http.Handler(dopplerproxy.NewDopplerProxy(logAuthorizer, adminAuthorizer, legacyCgc, dopplerproxy.TranslateFromLegacyPath, "loggregator."+config.SystemDomain, log))
	if legacyAccessMiddleware != nil {
		legacyHandler = legacyAccessMiddleware(legacyHandler)
	}
	startOutgoingProxy(net.JoinHostPort(ipAddress, strconv.FormatUint(uint64(config.OutgoingPort), 10)), legacyHandler)

	killChan := signalmanager.RegisterKillSignalChannel()
	dumpChan := signalmanager.RegisterGoRoutineDumpSignalChannel()

	for {
		select {
		case <-dumpChan:
			signalmanager.DumpGoRoutine()
		case <-killChan:
			log.Info("Shutting down")
			return
		}
	}
}
Exemple #3
0
func New(logger *gosteno.Logger,
	host string,
	config *config.Config,
	storeAdapter storeadapter.StoreAdapter,
	messageDrainBufferSize uint,
	dropsondeOrigin string,
	websocketWriteTimeout time.Duration,
	dialTimeout time.Duration) (*Doppler, error) {

	keepAliveInterval := 30 * time.Second

	appStoreCache := cache.NewAppServiceCache()
	appStoreWatcher, newAppServiceChan, deletedAppServiceChan := store.NewAppServiceStoreWatcher(storeAdapter, appStoreCache, logger)

	var udpListener listeners.Listener
	var tlsListener listeners.Listener
	var dropsondeBytesChan <-chan []byte
	var err error
	listenerEnvelopeChan := make(chan *events.Envelope)

	if config.EnableTLSTransport {
		tlsListener, err = listeners.NewTLSListener("tlsListener", fmt.Sprintf("%s:%d", host, config.TLSListenerConfig.Port), config.TLSListenerConfig, listenerEnvelopeChan, logger)
		if err != nil {
			return nil, err
		}
	}

	udpListener, dropsondeBytesChan = listeners.NewUDPListener(fmt.Sprintf("%s:%d", host, config.DropsondeIncomingMessagesPort), logger, "dropsondeListener")

	signatureVerifier := signature.NewVerifier(logger, config.SharedSecret)

	unmarshallerCollection := dropsonde_unmarshaller.NewDropsondeUnmarshallerCollection(logger, config.UnmarshallerCount)

	blacklist := blacklist.New(config.BlackListIps, logger)
	metricTTL := time.Duration(config.ContainerMetricTTLSeconds) * time.Second
	sinkTimeout := time.Duration(config.SinkInactivityTimeoutSeconds) * time.Second
	sinkIOTimeout := time.Duration(config.SinkIOTimeoutSeconds) * time.Second
	sinkManager := sinkmanager.New(config.MaxRetainedLogMessages, config.SinkSkipCertVerify, blacklist, logger, messageDrainBufferSize, dropsondeOrigin, sinkTimeout, sinkIOTimeout, metricTTL, dialTimeout)

	websocketServer, err := websocketserver.New(fmt.Sprintf("%s:%d", host, config.OutgoingPort), sinkManager, websocketWriteTimeout, keepAliveInterval, config.MessageDrainBufferSize, dropsondeOrigin, logger)
	if err != nil {
		return nil, fmt.Errorf("Failed to create the websocket server: %s", err.Error())
	}

	initializeMetrics(config.MetricBatchIntervalMilliseconds)

	return &Doppler{
		Logger:                          logger,
		udpListener:                     udpListener,
		tlsListener:                     tlsListener,
		sinkManager:                     sinkManager,
		messageRouter:                   sinkserver.NewMessageRouter(sinkManager, logger),
		websocketServer:                 websocketServer,
		newAppServiceChan:               newAppServiceChan,
		deletedAppServiceChan:           deletedAppServiceChan,
		appStoreWatcher:                 appStoreWatcher,
		storeAdapter:                    storeAdapter,
		dropsondeBytesChan:              dropsondeBytesChan,
		dropsondeUnmarshallerCollection: unmarshallerCollection,
		envelopeChan:                    listenerEnvelopeChan,
		signatureVerifier:               signatureVerifier,
		dropsondeVerifiedBytesChan:      make(chan []byte),
		uptimeMonitor:                   monitor.NewUptimeMonitor(time.Duration(config.MonitorIntervalSeconds) * time.Second),
	}, nil
}
Exemple #4
0
func main() {
	// Put os.Exit in a deferred statement so that other defers get executed prior to
	// the os.Exit call.
	exitCode := 0
	defer func() {
		os.Exit(exitCode)
	}()

	flag.Parse()

	config, err := config.ParseConfig(*logLevel, *configFile, *logFilePath)
	if err != nil {
		panic(err)
	}

	log := logger.NewLogger(*logLevel, *logFilePath, "loggregator trafficcontroller", config.Syslog)
	log.Info("Startup: Setting up the loggregator traffic controller")

	dropsonde.Initialize("127.0.0.1:"+strconv.Itoa(config.MetronPort), "LoggregatorTrafficController")

	profiler := profiler.New(*cpuprofile, *memprofile, 1*time.Second, log)
	profiler.Profile()
	defer profiler.Stop()

	uptimeMonitor := monitor.NewUptimeMonitor(time.Duration(config.MonitorIntervalSeconds) * time.Second)
	go uptimeMonitor.Start()
	defer uptimeMonitor.Stop()

	etcdAdapter := DefaultStoreAdapterProvider(config.EtcdUrls, config.EtcdMaxConcurrentRequests)
	err = etcdAdapter.Connect()
	if err != nil {
		log.Errorf("Cannot connect to ETCD: %s", err.Error())
		exitCode = -1
		return
	}

	ipAddress, err := localip.LocalIP()
	if err != nil {
		panic(err)
	}

	logAuthorizer := authorization.NewLogAccessAuthorizer(*disableAccessControl, config.ApiHost, config.SkipCertVerify)

	uaaClient := uaa_client.NewUaaClient(config.UaaHost, config.UaaClientId, config.UaaClientSecret, config.SkipCertVerify)
	adminAuthorizer := authorization.NewAdminAccessAuthorizer(*disableAccessControl, &uaaClient)

	preferredServers := func(string) bool { return false }
	finder := dopplerservice.NewLegacyFinder(etcdAdapter, int(config.DopplerPort), preferredServers, nil, log)
	finder.Start()

	dopplerCgc := channel_group_connector.NewChannelGroupConnector(finder, newDropsondeWebsocketListener, marshaller.DropsondeLogMessage, log)
	dopplerProxy := dopplerproxy.NewDopplerProxy(logAuthorizer, adminAuthorizer, dopplerCgc, dopplerproxy.TranslateFromDropsondePath, "doppler."+config.SystemDomain, log)
	startOutgoingProxy(net.JoinHostPort(ipAddress, strconv.FormatUint(uint64(config.OutgoingDropsondePort), 10)), dopplerProxy)

	legacyCgc := channel_group_connector.NewChannelGroupConnector(finder, newLegacyWebsocketListener, marshaller.LoggregatorLogMessage, log)
	legacyProxy := dopplerproxy.NewDopplerProxy(logAuthorizer, adminAuthorizer, legacyCgc, dopplerproxy.TranslateFromLegacyPath, "loggregator."+config.SystemDomain, log)
	startOutgoingProxy(net.JoinHostPort(ipAddress, strconv.FormatUint(uint64(config.OutgoingPort), 10)), legacyProxy)

	killChan := signalmanager.RegisterKillSignalChannel()
	dumpChan := signalmanager.RegisterGoRoutineDumpSignalChannel()

	for {
		select {
		case <-dumpChan:
			signalmanager.DumpGoRoutine()
		case <-killChan:
			log.Info("Shutting down")
			return
		}
	}
}