func SetupEventRouting(wantedEvents string) error {
selectedEvents = make(map[string]bool)
if wantedEvents == "" {
selectedEvents["LogMessage"] = true
} else {
for _, event := range strings.Split(wantedEvents, ",") {
if isAuthorizedEvent(event) {
selectedEvents[event] = true
log.LogStd(fmt.Sprintf("Event Type [%s] is included in the fireshose!", event), false)
} else {
return fmt.Errorf("Rejected Event Name [%s] - Valid events: %s", event, GetListAuthorizedEventEvents())
}
}
}
return nil
}
func main() {
kingpin.Version(version)
kingpin.Parse()
logging.LogStd(fmt.Sprintf("Starting firehose-to-syslog %s ", version), true)
logging.SetupLogging(*syslogServer, *debug)
c := cfclient.Config{
ApiAddress: *apiEndpoint,
Username: *user,
Password: *password,
SkipSslValidation: *skipSSLValidation,
}
cfClient := cfclient.NewClient(&c)
if len(*dopplerEndpoint) > 0 {
cfClient.Endpoint.DopplerEndpoint = *dopplerEndpoint
}
logging.LogStd(fmt.Sprintf("Using %s as doppler endpoint", cfClient.Endpoint.DopplerEndpoint), true)
logging.LogStd("Setting up event routing!", true)
err := events.SetupEventRouting(*wantedEvents)
if err != nil {
log.Fatal("Error setting up event routing: ", err)
os.Exit(1)
}
//Use bolt for in-memory - file caching
db, err := bolt.Open(*boltDatabasePath, 0600, &bolt.Options{Timeout: 1 * time.Second})
if err != nil {
log.Fatal("Error opening bolt db: ", err)
os.Exit(1)
}
defer db.Close()
if *modeProf != "" {
switch *modeProf {
case "cpu":
defer profile.Start(profile.CPUProfile, profile.ProfilePath(*pathProf)).Stop()
case "mem":
defer profile.Start(profile.MemProfile, profile.ProfilePath(*pathProf)).Stop()
case "block":
defer profile.Start(profile.BlockProfile, profile.ProfilePath(*pathProf)).Stop()
default:
// do nothing
}
}
caching.SetCfClient(cfClient)
caching.SetAppDb(db)
caching.CreateBucket()
//Let's Update the database the first time
logging.LogStd("Start filling app/space/org cache.", true)
apps := caching.GetAllApp()
logging.LogStd(fmt.Sprintf("Done filling cache! Found [%d] Apps", len(apps)), true)
// Ticker Pooling the CC every X sec
ccPooling := time.NewTicker(*tickerTime)
go func() {
for range ccPooling.C {
apps = caching.GetAllApp()
}
}()
// Parse extra fields from cmd call
extraFields, err := extrafields.ParseExtraFields(*extraFields)
if err != nil {
log.Fatal("Error parsing extra fields: ", err)
os.Exit(1)
}
// Parse filters
filtersToApply := filters.GetFilters(*filterPath)
if err != nil {
log.Fatal("Error parsing filters: ", err)
os.Exit(1)
}
// Ticker Pooling the Filters file every 60 seconds
filterPolling := time.NewTicker(time.Second * 60)
go func() {
for range filterPolling.C {
filtersToApply = filters.GetFilters(*filterPath)
}
}()
// Connect to redis
redisConn, err := redisurl.ConnectToURL(*redisUrl)
if err != nil {
panic("Can't connect to Redis")
}
events.SetupRedisClient(redisConn)
if logging.Connect() || *debug {
logging.LogStd("Connected to Syslog Server! Connecting to Firehose...", true)
firehose := firehose.CreateFirehoseChan(cfClient.Endpoint.DopplerEndpoint, cfClient.GetToken(), *subscriptionId, *skipSSLValidation)
if firehose != nil {
logging.LogStd("Firehose Subscription Succesfull! Routing events...", true)
events.RouteEvents(firehose, extraFields, filtersToApply)
} else {
logging.LogError("Failed connecting to Firehose...Please check settings and try again!", "")
}
} else {
logging.LogError("Failed connecting to the Syslog Server...Please check settings and try again!", "")
}
}