func main() {
flag.Parse()
// ** Config Setup
config, err := readConfig(*configFile)
if err != nil {
panic(err)
}
dropsonde.Initialize(config.MetronAddress, "dea_logging_agent")
log := logger.NewLogger(*logLevel, *logFilePath, "deaagent", config.Syslog)
log.Info("Startup: Setting up the loggregator dea logging agent")
// ** END Config Setup
agent := deaagent.NewAgent(*instancesJsonFilePath, log)
go agent.Start()
killChan := signalmanager.RegisterKillSignalChannel()
dumpChan := signalmanager.RegisterGoRoutineDumpSignalChannel()
for {
select {
case <-dumpChan:
signalmanager.DumpGoRoutine()
case <-killChan:
log.Info("Shutting down")
os.Exit(0)
return
}
}
}
func main() {
// Metron is intended to be light-weight so we occupy only one core
runtime.GOMAXPROCS(1)
flag.Parse()
config, err := config.ParseConfig(*configFilePath)
if err != nil {
panic(fmt.Errorf("Unable to parse config: %s", err))
}
localIp, err := localip.LocalIP()
if err != nil {
panic(fmt.Errorf("Unable to resolve own IP address: %s", err))
}
log := logger.NewLogger(*debug, *logFilePath, "metron", config.Syslog)
go func() {
err := http.ListenAndServe(net.JoinHostPort(localIp, pprofPort), nil)
if err != nil {
log.Errorf("Error starting pprof server: %s", err.Error())
}
}()
log.Info("Startup: Setting up the Metron agent")
marshaller, err := initializeDopplerPool(config, log)
if err != nil {
panic(fmt.Errorf("Could not initialize doppler connection pool: %s", err))
}
messageTagger := tagger.New(config.Deployment, config.Job, config.Index, marshaller)
aggregator := messageaggregator.New(messageTagger, log)
statsStopChan := make(chan struct{})
initializeMetrics(messageTagger, config, statsStopChan, log)
dropsondeUnmarshaller := eventunmarshaller.New(aggregator, log)
metronAddress := fmt.Sprintf("127.0.0.1:%d", config.IncomingUDPPort)
dropsondeReader, err := networkreader.New(metronAddress, "dropsondeAgentListener", dropsondeUnmarshaller, log)
if err != nil {
panic(fmt.Errorf("Failed to listen on %s: %s", metronAddress, err))
}
log.Info("metron started")
go dropsondeReader.Start()
dumpChan := signalmanager.RegisterGoRoutineDumpSignalChannel()
killChan := signalmanager.RegisterKillSignalChannel()
for {
select {
case <-dumpChan:
signalmanager.DumpGoRoutine()
case <-killChan:
log.Info("Shutting down")
close(statsStopChan)
return
}
}
}
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)
}()
// Metron is intended to be light-weight so we occupy only one core
runtime.GOMAXPROCS(1)
flag.Parse()
config, err := config.ParseConfig(*configFilePath)
if err != nil {
panic(err)
}
log := logger.NewLogger(*debug, *logFilePath, "metron", config.Syslog)
log.Info("Startup: Setting up the Metron agent")
profiler := profiler.New(*cpuprofile, *memprofile, 1*time.Second, log)
profiler.Profile()
defer profiler.Stop()
dopplerClientPool, err := initializeDopplerPool(config, log)
if err != nil {
log.Errorf("Failed to initialize the doppler pool: %s", err.Error())
os.Exit(-1)
}
dopplerForwarder := dopplerforwarder.New(dopplerClientPool, []byte(config.SharedSecret), uint(config.BufferSize), config.EnableBuffer, log)
messageTagger := tagger.New(config.Deployment, config.Job, config.Index, dopplerForwarder)
aggregator := messageaggregator.New(messageTagger, log)
statsStopChan := make(chan struct{})
initializeMetrics(messageTagger, config, statsStopChan, log)
dropsondeUnmarshaller := eventunmarshaller.New(aggregator, log)
metronAddress := fmt.Sprintf("127.0.0.1:%d", config.DropsondeIncomingMessagesPort)
dropsondeReader, err := networkreader.New(metronAddress, "dropsondeAgentListener", dropsondeUnmarshaller, log)
if err != nil {
log.Errorf("Failed to listen on %s: %s", metronAddress, err)
exitCode = 1
return
}
log.Info("metron started")
go dopplerForwarder.Run()
go dropsondeReader.Start()
dumpChan := signalmanager.RegisterGoRoutineDumpSignalChannel()
killChan := signalmanager.RegisterKillSignalChannel()
for {
select {
case <-dumpChan:
signalmanager.DumpGoRoutine()
case <-killChan:
log.Info("Shutting down")
dopplerForwarder.Stop()
close(statsStopChan)
return
}
}
}
func main() {
flag.Parse()
config, err := parseConfig(*debug, *configFile, *logFilePath)
if err != nil {
panic(err)
}
log := logger.NewLogger(*debug, *logFilePath, "syslog_drain_binder", config.Syslog)
dropsonde.Initialize(config.MetronAddress, "syslog_drain_binder")
workPool, err := workpool.NewWorkPool(config.EtcdMaxConcurrentRequests)
if err != nil {
panic(err)
}
options := &etcdstoreadapter.ETCDOptions{
ClusterUrls: config.EtcdUrls,
}
adapter, err := etcdstoreadapter.New(options, workPool)
if err != nil {
panic(err)
}
updateInterval := time.Duration(config.UpdateIntervalSeconds) * time.Second
politician := elector.NewElector(config.InstanceName, adapter, updateInterval, log)
drainTTL := time.Duration(config.DrainUrlTtlSeconds) * time.Second
store := etcd_syslog_drain_store.NewEtcdSyslogDrainStore(adapter, drainTTL, log)
dumpChan := registerGoRoutineDumpSignalChannel()
ticker := time.NewTicker(updateInterval)
for {
select {
case <-dumpChan:
signalmanager.DumpGoRoutine()
case <-ticker.C:
if politician.IsLeader() {
err = politician.StayAsLeader()
if err != nil {
log.Errorf("Error when staying leader: %s", err.Error())
politician.Vacate()
continue
}
} else {
err = politician.RunForElection()
if err != nil {
log.Errorf("Error when running for leader: %s", err.Error())
politician.Vacate()
continue
}
}
log.Debugf("Polling %s for updates", config.CloudControllerAddress)
drainUrls, err := Poll(config.CloudControllerAddress, config.BulkApiUsername, config.BulkApiPassword, config.PollingBatchSize, config.SkipCertVerify)
if err != nil {
log.Errorf("Error when polling cloud controller: %s", err.Error())
politician.Vacate()
continue
}
metrics.IncrementCounter("pollCount")
var totalDrains int
for _, drainList := range drainUrls {
totalDrains += len(drainList)
}
metrics.SendValue("totalDrains", float64(totalDrains), "drains")
log.Debugf("Updating drain URLs for %d application(s)", len(drainUrls))
err = store.UpdateDrains(drainUrls)
if err != nil {
log.Errorf("Error when updating ETCD: %s", err.Error())
politician.Vacate()
continue
}
}
}
}
func main() {
seed := time.Now().UnixNano()
rand.Seed(seed)
flag.Parse()
runtime.GOMAXPROCS(runtime.NumCPU())
localIp, err := localip.LocalIP()
if err != nil {
panic(fmt.Errorf("Unable to resolve own IP address: %s", err))
}
conf, err := config.ParseConfig(*configFile)
if err != nil {
panic(fmt.Errorf("Unable to parse config: %s", err))
}
log := logger.NewLogger(*logLevel, *logFilePath, "doppler", conf.Syslog)
go func() {
err := http.ListenAndServe(net.JoinHostPort(localIp, pprofPort), nil)
if err != nil {
log.Errorf("Error starting pprof server: %s", err.Error())
}
}()
log.Info("Startup: Setting up the doppler server")
dropsonde.Initialize(conf.MetronAddress, DOPPLER_ORIGIN)
storeAdapter := NewStoreAdapter(conf.EtcdUrls, conf.EtcdMaxConcurrentRequests)
doppler, err := New(log, localIp, conf, storeAdapter, conf.MessageDrainBufferSize, DOPPLER_ORIGIN, time.Duration(conf.WebsocketWriteTimeoutSeconds)*time.Second, time.Duration(conf.SinkDialTimeoutSeconds)*time.Second)
if err != nil {
panic(fmt.Errorf("Failed to create doppler: %s", err))
}
go doppler.Start()
log.Info("Startup: doppler server started.")
killChan := signalmanager.RegisterKillSignalChannel()
dumpChan := signalmanager.RegisterGoRoutineDumpSignalChannel()
releaseNodeChan := dopplerservice.Announce(localIp, config.HeartbeatInterval, conf, storeAdapter, log)
legacyReleaseNodeChan := dopplerservice.AnnounceLegacy(localIp, config.HeartbeatInterval, conf, storeAdapter, log)
for {
select {
case <-dumpChan:
signalmanager.DumpGoRoutine()
case <-killChan:
log.Info("Shutting down")
stopped := make(chan bool)
legacyStopped := make(chan bool)
releaseNodeChan <- stopped
legacyReleaseNodeChan <- legacyStopped
doppler.Stop()
<-stopped
<-legacyStopped
return
}
}
}
func main() {
seed := time.Now().UnixNano()
rand.Seed(seed)
// 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()
runtime.GOMAXPROCS(runtime.NumCPU())
localIp, err := localip.LocalIP()
if err != nil {
panic(errors.New("Unable to resolve own IP address: " + err.Error()))
}
conf, err := config.ParseConfig(*configFile)
if err != nil {
panic(err)
}
log := logger.NewLogger(*logLevel, *logFilePath, "doppler", conf.Syslog)
log.Info("Startup: Setting up the doppler server")
profiler := profiler.New(*cpuprofile, *memprofile, 1*time.Second, log)
profiler.Profile()
defer profiler.Stop()
dropsonde.Initialize(conf.MetronAddress, DOPPLER_ORIGIN)
storeAdapter := NewStoreAdapter(conf.EtcdUrls, conf.EtcdMaxConcurrentRequests)
doppler, err := New(log, localIp, conf, storeAdapter, conf.MessageDrainBufferSize, DOPPLER_ORIGIN, time.Duration(conf.WebsocketWriteTimeoutSeconds)*time.Second, time.Duration(conf.SinkDialTimeoutSeconds)*time.Second)
if err != nil {
log.Errorf("Failed to create doppler: %s", err.Error())
exitCode = -1
return
}
go doppler.Start()
log.Info("Startup: doppler server started.")
killChan := signalmanager.RegisterKillSignalChannel()
dumpChan := signalmanager.RegisterGoRoutineDumpSignalChannel()
releaseNodeChan := dopplerservice.Announce(localIp, config.HeartbeatInterval, conf, storeAdapter, log)
legacyReleaseNodeChan := dopplerservice.AnnounceLegacy(localIp, config.HeartbeatInterval, conf, storeAdapter, log)
for {
select {
case <-dumpChan:
signalmanager.DumpGoRoutine()
case <-killChan:
log.Info("Shutting down")
stopped := make(chan bool)
legacyStopped := make(chan bool)
releaseNodeChan <- stopped
legacyReleaseNodeChan <- legacyStopped
doppler.Stop()
<-stopped
<-legacyStopped
return
}
}
}
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 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
}
}
}