func bananas(addrs []string, lock chan bool) {
cfg := nsq.NewConfig()
cfg.UserAgent = fmt.Sprintf("redis-nom/0.1 go-nsq/%s", nsq.VERSION)
producers = make(map[string]*nsq.Producer)
for _, addr := range addrs {
if producer, err := nsq.NewProducer(addr, cfg); err == nil {
producers[addr] = producer
} else {
l2n.Printf("Failed to connect to NSQ @ %s", addr)
}
}
if len(producers) == 0 {
l2n.Println("No NSQ available")
return
}
l2n.Println("NSQ Producer is on the go!")
<-lock
for _, producer := range producers {
producer.Stop()
}
}
func main() {
log.Println("Starting Redis NOM NOM NOM...")
if err := loadConfiguration(); err != nil {
l2n.Printf("%v", err)
os.Exit(-1)
}
logger2Nsq := l2n.NewLog2Nsq(&l2n.Options{
AppName: "redis-nom",
Addr: cfg.Nsq.Address[0],
})
l2n.Println("Configuration loaded")
l2n.Printf("%+v", cfg)
commons.HoldMeTillICantGetEnough(cfg.Cache.Mastername, cfg.Cache.Sentinel, cfg.General.Env)
if err := getSentinelClient(); err != nil {
l2n.Printf("%v", err)
os.Exit(-1)
}
if masterPodList = retrievePodList(); masterPodList == nil {
l2n.Println("Failed to retrieve pod list")
os.Exit(-1)
}
l2n.Printf("%+v", masterPodList)
nsqLock := make(chan bool, 1)
dispatcher.InitPagerDutyInterface(cfg.PagerDuty.Key)
dispatcher.StartNSQProducer(cfg.Nsq.Topic, cfg.Nsq.Address, nsqLock)
monitor.StartSentinelMonitoring(cfg.Redis.Sentinel)
monitor.StartRedisMonitoring(cfg.Redis.Sentinel)
lock := make(chan bool, 1)
sigRcv := make(chan os.Signal, 1)
signal.Notify(sigRcv, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
// Routine to catch and handle signals
go func(sigRcv chan os.Signal) {
for sig := range sigRcv {
l2n.Printf("Signal caught: %s", sig.String())
// TODO Clean all
nsqLock <- true
lock <- true
}
}(sigRcv)
<-lock
logger2Nsq.Close()
}
func iWillSurvive(env string) {
l2n.Println("[HOLD] First I was afraid, then I was petrified...")
for {
cache.Set(env, "I Will Survive!", 4*time.Second)
time.Sleep(3 * time.Second)
}
}
// HoldMeTillICantGetEnough will hold the application here, until he finds out he was left out alone to do all the work
func HoldMeTillICantGetEnough(mastername string, sentinel []string, env string) {
cache = redis.NewFailoverClient(&redis.FailoverOptions{
MasterName: mastername,
SentinelAddrs: sentinel,
})
if _, err := cache.Ping().Result(); err != nil {
l2n.Printf("[CACHE] %s", err.Error())
os.Exit(1)
}
monkeyOutThere := false
for cache.Get(env).Err() == nil {
if !monkeyOutThere {
l2n.Println("[HOLD] There's a monkey doing monkey's work...")
monkeyOutThere = true
}
time.Sleep(5 * time.Second)
}
go iWillSurvive(env)
go logImAlive()
}
func logImAlive() {
for {
time.Sleep(time.Minute)
l2n.Println("[HOLD] STOP! Don't kill me, I'm listening quietly...")
}
}