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))
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
}
}
}
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
}
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
}
}
}