func main() {
upgradelater := flag.Bool("upgradelater", false, "Upgrade later")
flag.Parse()
had_upgrade := false
if !*upgradelater && os.Getenv("GOAGAIN_PPID") == "" { // not after gone again
log.Println("Initial check for upgrades; run with -ugradelater to disable")
had_upgrade = upgrade_once(false)
}
if !had_upgrade { // start the background routine unless just had an upgrade and gonna relaunch anyway
go ostent.Loop()
// go ostent.CollectdLoop()
}
listen, err := goagain.Listener()
if err != nil {
listen, err = net.Listen("tcp", ostent.OstentBindFlag.String())
if err != nil {
log.Fatalln(err)
}
if had_upgrade { // goagain
go func() {
time.Sleep(time.Second) // not before goagain.Wait
syscall.Kill(os.Getpid(), syscall.SIGUSR2)
// goagain.ForkExec(listen)
}()
} else {
go upgrade_loop()
go ostent.Serve(listen, true, nil)
}
} else {
go upgrade_loop()
go ostent.Serve(listen, true, nil)
if err := goagain.Kill(); err != nil {
log.Fatalln(err)
}
}
if _, err := goagain.Wait(listen); err != nil { // signals before won't be catched
log.Fatalln(err)
}
// shutting down
if ostent.Connections.Reload() {
time.Sleep(time.Second)
} // */
if err := listen.Close(); err != nil {
log.Fatalln(err)
}
time.Sleep(time.Second)
}
func main() {
displayConfig()
if doMemoryProfile {
log.Info("Memory profiling active")
profileFile, _ = os.Create("tyk.mprof")
defer profileFile.Close()
}
targetPort := fmt.Sprintf(":%d", config.ListenPort)
loadAPIEndpoints(http.DefaultServeMux)
// Handle reload when SIGUSR2 is received
l, err := goagain.Listener()
if nil != err {
// Listen on a TCP or a UNIX domain socket (TCP here).
l, err = net.Listen("tcp", targetPort)
if nil != err {
log.Fatalln(err)
}
log.Println("Listening on", l.Addr())
// Accept connections in a new goroutine.
specs := getAPISpecs()
loadApps(specs, http.DefaultServeMux)
go http.Serve(l, nil)
} else {
// Resume accepting connections in a new goroutine.
log.Println("Resuming listening on", l.Addr())
specs := getAPISpecs()
loadApps(specs, http.DefaultServeMux)
go http.Serve(l, nil)
// Kill the parent, now that the child has started successfully.
if err := goagain.Kill(); nil != err {
log.Fatalln(err)
}
}
// Block the main goroutine awaiting signals.
if _, err := goagain.Wait(l); nil != err {
log.Fatalln(err)
}
// Do whatever's necessary to ensure a graceful exit like waiting for
// goroutines to terminate or a channel to become closed.
//
// In this case, we'll simply stop listening and wait one second.
if err := l.Close(); nil != err {
log.Fatalln(err)
}
time.Sleep(1e9)
}
func main() {
// Inherit a net.Listener from our parent process or listen anew.
ch := make(chan struct{})
wg := &sync.WaitGroup{}
wg.Add(1)
l, err := goagain.Listener()
if nil != err {
// Listen on a TCP or a UNIX domain socket (TCP here).
l, err = net.Listen("tcp", "127.0.0.1:48879")
if nil != err {
log.Fatalln(err)
}
log.Println("listening on", l.Addr())
// Accept connections in a new goroutine.
go serve(l, ch, wg)
} else {
// Resume listening and accepting connections in a new goroutine.
log.Println("resuming listening on", l.Addr())
go serve(l, ch, wg)
// If this is the child, send the parent SIGUSR2. If this is the
// parent, send the child SIGQUIT.
if err := goagain.Kill(); nil != err {
log.Fatalln(err)
}
}
// Block the main goroutine awaiting signals.
sig, err := goagain.Wait(l)
if nil != err {
log.Fatalln(err)
}
// Do whatever's necessary to ensure a graceful exit like waiting for
// goroutines to terminate or a channel to become closed.
//
// In this case, we'll close the channel to signal the goroutine to stop
// accepting connections and wait for the goroutine to exit.
close(ch)
wg.Wait()
// If we received SIGUSR2, re-exec the parent process.
if goagain.SIGUSR2 == sig {
if err := goagain.Exec(l); nil != err {
log.Fatalln(err)
}
}
}
func main() {
updatelater := flag.Bool("updatelater", false, "Update later")
flag.Parse()
had_update := false
if !*updatelater && os.Getenv("GOAGAIN_PPID") == "" { // not after gone again
log.Println("Initial check for updates; run with -updatelater to disable")
had_update = update_once(false)
}
martini.Env = martini.Prod
listen, err := goagain.Listener()
if err != nil {
listen, err = ostential.Listen()
if err != nil {
if _, ok := err.(ostential.FlagError); ok {
flag.Usage()
os.Exit(2)
return
}
log.Fatalln(err)
}
if had_update { // goagain
go func() {
time.Sleep(time.Second) // not before goagain.Wait
syscall.Kill(os.Getpid(), syscall.SIGUSR2)
// goagain.ForkExec(listen)
}()
} else {
go update_loop()
go ostential.Serve(listen, ostential.LogOne, nil)
}
} else {
go update_loop()
go ostential.Serve(listen, ostential.LogOne, nil)
if err := goagain.Kill(); err != nil {
log.Fatalln(err)
}
}
if _, err := goagain.Wait(listen); err != nil { // signals before won't be catched
log.Fatalln(err)
}
if err := listen.Close(); err != nil {
log.Fatalln(err)
}
time.Sleep(time.Second)
}
func main() {
// Inherit a net.Listener from our parent process or listen anew.
l, err := goagain.Listener()
if nil != err {
// Listen on a TCP or a UNIX domain socket (TCP here).
l, err = net.Listen("tcp", "127.0.0.1:48879")
if nil != err {
log.Fatalln(err)
}
log.Println("listening on", l.Addr())
// Accept connections in a new goroutine.
go serve(l)
} else {
// Resume accepting connections in a new goroutine.
log.Println("resuming listening on", l.Addr())
go serve(l)
// Kill the parent, now that the child has started successfully.
if err := goagain.Kill(); nil != err {
log.Fatalln(err)
}
}
// Block the main goroutine awaiting signals.
if _, err := goagain.Wait(l); nil != err {
log.Fatalln(err)
}
// Do whatever's necessary to ensure a graceful exit like waiting for
// goroutines to terminate or a channel to become closed.
//
// In this case, we'll simply stop listening and wait one second.
if err := l.Close(); nil != err {
log.Fatalln(err)
}
time.Sleep(1e9)
}
func startServer() syscall.Signal {
listener, err := again.Listener()
if err != nil {
port := config.Get("port").(string)
listener, err = net.Listen("tcp4", "127.0.0.1:"+port)
if err != nil {
panic(err)
}
logger.Infof("listening on %s", listener.Addr())
go serve(listener)
} else {
go serve(listener)
err := again.Kill()
if err != nil {
panic(err)
}
}
logPid()
//block
signal, err := again.Wait(listener)
if err != nil {
logger.Errorf(err.Error())
panic(err)
}
err = listener.Close()
if err != nil {
logger.Errorf(err.Error())
panic(err)
}
return signal
}
/**
* 运行一个可以平滑重启的服务器
*/
func RunZeroDowntimeRestartServer(address string, serve ServerStarter, exiter ServerExiter) {
l, err := goagain.Listener()
if nil != err {
l, err = net.Listen("tcp", address)
if nil != err {
log.Fatalln(err)
}
log.Println("listening on", l.Addr())
go serve(l)
} else {
log.Println("resuming listening on", l.Addr())
go serve(l)
if err := goagain.Kill(); nil != err {
log.Fatalln(err)
}
}
sig, err := goagain.Wait(l)
if nil != err {
log.Println(sig, err)
}
exiter(l, sig)
}
func main() {
displayConfig()
ReadTimeout := 120
WriteTimeout := 120
if config.HttpServerOptions.ReadTimeout > 0 {
ReadTimeout = config.HttpServerOptions.ReadTimeout
}
if config.HttpServerOptions.WriteTimeout > 0 {
WriteTimeout = config.HttpServerOptions.WriteTimeout
}
if doMemoryProfile {
log.Debug("Memory profiling active")
profileFile, _ = os.Create("tyk.mprof")
defer profileFile.Close()
}
targetPort := fmt.Sprintf(":%d", config.ListenPort)
// Set up a default org manager so we can traverse non-live paths
if !config.SupressDefaultOrgStore {
log.Debug("Initialising default org store")
//DefaultOrgStore.Init(&RedisStorageManager{KeyPrefix: "orgkey."})
DefaultOrgStore.Init(GetGlobalStorageHandler("orgkey.", false))
//DefaultQuotaStore.Init(GetGlobalStorageHandler(CloudHandler, "orgkey.", false))
DefaultQuotaStore.Init(GetGlobalStorageHandler("orgkey.", false))
}
loadAPIEndpoints(http.DefaultServeMux)
// Start listening for reload messages
if !config.SuppressRedisSignalReload {
go StartPubSubLoop()
}
if config.SlaveOptions.UseRPC {
log.Warning("Strting RPC reload listener!")
RPCListener := RPCStorageHandler{KeyPrefix: "rpc.listener.", UserKey: config.SlaveOptions.APIKey, Address: config.SlaveOptions.ConnectionString}
RPCListener.Connect()
go RPCListener.CheckForReload(config.SlaveOptions.RPCKey)
}
// Handle reload when SIGUSR2 is received
l, err := goagain.Listener()
if nil != err {
// Listen on a TCP or a UNIX domain socket (TCP here).
l, err = net.Listen("tcp", targetPort)
if nil != err {
log.Fatalln(err)
}
//log.Println("Listening on", l.Addr())
// Accept connections in a new goroutine.
specs := getAPISpecs()
loadApps(specs, http.DefaultServeMux)
getPolicies()
// Use a custom server so we can control keepalives
if config.HttpServerOptions.OverrideDefaults {
log.Info("Custom Server started")
log.Warning("HTTP Server Overrides detected, this could destabilise long-running http-requests")
s := &http.Server{
Addr: ":" + targetPort,
ReadTimeout: time.Duration(ReadTimeout) * time.Second,
WriteTimeout: time.Duration(WriteTimeout) * time.Second,
Handler: http.DefaultServeMux,
}
go s.Serve(l)
} else {
log.Printf("Server started (%v)", VERSION)
go http.Serve(l, nil)
}
} else {
// Resume accepting connections in a new goroutine.
log.Info("Resuming listening on", l.Addr())
specs := getAPISpecs()
loadApps(specs, http.DefaultServeMux)
getPolicies()
if config.HttpServerOptions.OverrideDefaults {
log.Warning("HTTP Server Overrides detected, this could destabilise long-running http-requests")
s := &http.Server{
Addr: ":" + targetPort,
ReadTimeout: time.Duration(ReadTimeout) * time.Second,
WriteTimeout: time.Duration(WriteTimeout) * time.Second,
Handler: http.DefaultServeMux,
}
log.Info("Custom server started")
go s.Serve(l)
} else {
log.Printf("Server started (%v)", VERSION)
http.Serve(l, nil)
}
// Kill the parent, now that the child has started successfully.
if err := goagain.Kill(); nil != err {
log.Fatalln(err)
}
}
// Block the main goroutine awaiting signals.
if _, err := goagain.Wait(l); nil != err {
log.Fatalln(err)
}
// Do whatever's necessary to ensure a graceful exit like waiting for
// goroutines to terminate or a channel to become closed.
//
// In this case, we'll simply stop listening and wait one second.
if err := l.Close(); nil != err {
log.Fatalln(err)
}
//time.Sleep(1e9)
}
func main() {
ReadTimeout := 120
WriteTimeout := 120
if config.HttpServerOptions.ReadTimeout > 0 {
ReadTimeout = config.HttpServerOptions.ReadTimeout
}
if config.HttpServerOptions.WriteTimeout > 0 {
WriteTimeout = config.HttpServerOptions.WriteTimeout
}
if doMemoryProfile {
log.Debug("Memory profiling active")
profileFile, _ = os.Create("tyk.mprof")
defer profileFile.Close()
}
targetPort := fmt.Sprintf(":%d", config.ListenPort)
// Set up a default org manager so we can traverse non-live paths
if !config.SupressDefaultOrgStore {
log.Debug("Initialising default org store")
//DefaultOrgStore.Init(&RedisClusterStorageManager{KeyPrefix: "orgkey."})
DefaultOrgStore.Init(GetGlobalStorageHandler("orgkey.", false))
//DefaultQuotaStore.Init(GetGlobalStorageHandler(CloudHandler, "orgkey.", false))
DefaultQuotaStore.Init(GetGlobalStorageHandler("orgkey.", false))
}
loadAPIEndpoints(http.DefaultServeMux)
// Start listening for reload messages
if !config.SuppressRedisSignalReload {
go StartPubSubLoop()
}
if config.SlaveOptions.UseRPC {
log.Debug("Starting RPC reload listener")
RPCListener = RPCStorageHandler{
KeyPrefix: "rpc.listener.",
UserKey: config.SlaveOptions.APIKey,
Address: config.SlaveOptions.ConnectionString,
SuppressRegister: true,
}
RPCListener.Connect()
go RPCReloadLoop(config.SlaveOptions.RPCKey)
go RPCListener.StartRPCLoopCheck(config.SlaveOptions.RPCKey)
}
// Handle reload when SIGUSR2 is received
l, err := goagain.Listener()
if nil != err {
// Listen on a TCP or a UNIX domain socket (TCP here).
log.Info("Setting up Server")
if config.HttpServerOptions.UseSSL {
log.Warning("--> Using SSL (https)")
certs := make([]tls.Certificate, len(config.HttpServerOptions.Certificates))
certNameMap := make(map[string]*tls.Certificate)
for i, certData := range config.HttpServerOptions.Certificates {
cert, err := tls.LoadX509KeyPair(certData.CertFile, certData.KeyFile)
if err != nil {
log.Fatalf("Server error: loadkeys: %s", err)
}
certs[i] = cert
certNameMap[certData.Name] = &certs[i]
}
config := tls.Config{
Certificates: certs,
NameToCertificate: certNameMap,
ServerName: config.HttpServerOptions.ServerName,
MinVersion: config.HttpServerOptions.MinVersion,
}
l, err = tls.Listen("tcp", targetPort, &config)
} else {
log.Warning("--> Standard listener (http)")
l, err = net.Listen("tcp", targetPort)
}
// Accept connections in a new goroutine.
specs := getAPISpecs()
loadApps(specs, http.DefaultServeMux)
getPolicies()
// Use a custom server so we can control keepalives
if config.HttpServerOptions.OverrideDefaults {
log.Info("Custom gateway started")
log.Warning("HTTP Server Overrides detected, this could destabilise long-running http-requests")
s := &http.Server{
Addr: ":" + targetPort,
ReadTimeout: time.Duration(ReadTimeout) * time.Second,
WriteTimeout: time.Duration(WriteTimeout) * time.Second,
Handler: http.DefaultServeMux,
}
go s.Serve(l)
displayConfig()
} else {
log.Printf("Gateway started (%v)", VERSION)
go http.Serve(l, nil)
displayConfig()
}
} else {
// Resume accepting connections in a new goroutine.
log.Info("Resuming listening on", l.Addr())
specs := getAPISpecs()
loadApps(specs, http.DefaultServeMux)
getPolicies()
if config.HttpServerOptions.OverrideDefaults {
log.Warning("HTTP Server Overrides detected, this could destabilise long-running http-requests")
s := &http.Server{
Addr: ":" + targetPort,
ReadTimeout: time.Duration(ReadTimeout) * time.Second,
WriteTimeout: time.Duration(WriteTimeout) * time.Second,
Handler: http.DefaultServeMux,
}
log.Info("Custom gateway started")
go s.Serve(l)
displayConfig()
} else {
log.Printf("Gateway started (%v)", VERSION)
displayConfig()
http.Serve(l, nil)
}
// Kill the parent, now that the child has started successfully.
if err := goagain.Kill(); nil != err {
log.Fatalln(err)
}
}
// Block the main goroutine awaiting signals.
if _, err := goagain.Wait(l); nil != err {
log.Fatalln(err)
}
// Do whatever's necessary to ensure a graceful exit like waiting for
// goroutines to terminate or a channel to become closed.
//
// In this case, we'll simply stop listening and wait one second.
if err := l.Close(); nil != err {
log.Fatalln(err)
}
//time.Sleep(1e9)
}
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
flag.Parse()
log.SetFlags(log.Lmicroseconds | log.Lshortfile)
log.SetPrefix(fmt.Sprintf("pid:%d ", syscall.Getpid()))
if err := readConfig(configFileName); err != nil {
log.Fatalf("error reading config %s: %s", *configFileName, err)
}
logFile, err := os.OpenFile(logFileName, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
if err != nil {
log.Fatalf("error opening log file %s: %s", logFileName, err)
}
defer logFile.Close()
log.SetOutput(logFile)
err = ioutil.WriteFile(pidFileName, []byte(fmt.Sprint(syscall.Getpid())), 0644)
if err != nil {
log.Fatalf("error writing pid file %s: %s", pidFileName, err)
}
retentionConfigFile, err := os.Open(retentionConfigFileName)
if err != nil {
log.Fatalf("error open retentions file %s: %s", pidFileName, err)
}
filter.InitGraphiteMetrics()
db = filter.NewDbConnector(newRedisPool(redisURI))
patterns = filter.NewPatternStorage()
cache, err = filter.NewCacheStorage(retentionConfigFile)
if err != nil {
log.Fatalf("failed to initialize cache with config %s: %s", retentionConfigFileName, err.Error())
}
go patterns.Refresh(db)
if graphiteURI != "" {
graphiteAddr, _ := net.ResolveTCPAddr("tcp", graphiteURI)
go graphite.Graphite(metrics.DefaultRegistry, time.Duration(graphiteInterval)*time.Second, fmt.Sprintf("%s.cache", graphitePrefix), graphiteAddr)
}
l, err := goagain.Listener()
if err != nil {
l, err = net.Listen("tcp", listen)
if err != nil {
log.Fatalf("failed to listen on %s: %s", listen, err.Error())
}
log.Printf("listening on %s", listen)
go serve(l)
} else {
log.Printf("resuming listening on %s", listen)
go serve(l)
if err := goagain.Kill(); err != nil {
log.Fatalf("failed to kill parent process: %s", err.Error())
}
}
if _, err := goagain.Wait(l); err != nil {
log.Fatalf("failed to block main goroutine: %s", err.Error())
}
log.Printf("shutting down")
if err := l.Close(); err != nil {
log.Fatalf("failed to stop listening: %s", err.Error())
}
time.Sleep(time.Second)
log.Printf("shutdown complete")
}