func main() {
c := config.DefaultConfig()
logCounter := vcap.NewLogCounter()
if configFile != "" {
c = config.InitConfigFromFile(configFile)
}
InitLoggerFromConfig(c, logCounter)
logger := steno.NewLogger("router.main")
err := dropsonde.Initialize(c.Logging.MetronAddress, c.Logging.JobName)
if err != nil {
logger.Errorf("Dropsonde failed to initialize: %s", err.Error())
os.Exit(1)
}
// setup number of procs
if c.GoMaxProcs != 0 {
runtime.GOMAXPROCS(c.GoMaxProcs)
}
if c.DebugAddr != "" {
cf_debug_server.Run(c.DebugAddr)
}
logger.Info("Setting up NATs connection")
natsClient := connectToNatsServer(c, logger)
registry := rregistry.NewRouteRegistry(c, natsClient)
logger.Info("Setting up routing_api route fetcher")
setupRouteFetcher(c, registry)
varz := rvarz.NewVarz(registry)
accessLogger, err := access_log.CreateRunningAccessLogger(c)
if err != nil {
logger.Fatalf("Error creating access logger: %s\n", err)
}
proxy := buildProxy(c, registry, accessLogger, varz)
router, err := router.NewRouter(c, proxy, natsClient, registry, varz, logCounter)
if err != nil {
logger.Errorf("An error occurred: %s", err.Error())
os.Exit(1)
}
errChan := router.Run()
logger.Info("gorouter.started")
waitOnErrOrSignal(c, logger, errChan, router)
os.Exit(0)
}
func main() {
c := config.DefaultConfig()
logCounter := vcap.NewLogCounter()
if configFile != "" {
c = config.InitConfigFromFile(configFile)
}
InitLoggerFromConfig(c, logCounter)
logger := steno.NewLogger("router.main")
err := dropsonde.Initialize(c.Logging.MetronAddress, c.Logging.JobName)
if err != nil {
logger.Errorf("Dropsonde failed to initialize: %s", err.Error())
os.Exit(1)
}
// setup number of procs
if c.GoMaxProcs != 0 {
runtime.GOMAXPROCS(c.GoMaxProcs)
}
if c.DebugAddr != "" {
cf_debug_server.Run(c.DebugAddr)
}
natsServers := c.NatsServers()
var natsClient yagnats.NATSConn
attempts := 3
for attempts > 0 {
natsClient, err = yagnats.Connect(natsServers)
if err == nil {
break
} else {
attempts--
time.Sleep(100 * time.Millisecond)
}
}
if err != nil {
logger.Errorf("Error connecting to NATS: %s\n", err)
os.Exit(1)
}
natsClient.AddClosedCB(func(conn *nats.Conn) {
logger.Errorf("Close on NATS client. nats.Conn: %+v", *conn)
os.Exit(1)
})
registry := rregistry.NewRouteRegistry(c, natsClient)
if c.RoutingApiEnabled() {
logger.Info("Setting up routing_api route fetcher")
tokenFetcher := token_fetcher.NewTokenFetcher(&c.OAuth)
routingApiUri := fmt.Sprintf("%s:%d", c.RoutingApi.Uri, c.RoutingApi.Port)
routingApiClient := routing_api.NewClient(routingApiUri)
routeFetcher := route_fetcher.NewRouteFetcher(steno.NewLogger("router.route_fetcher"), tokenFetcher, registry, c, routingApiClient, 1)
routeFetcher.StartFetchCycle()
routeFetcher.StartEventCycle()
}
varz := rvarz.NewVarz(registry)
accessLogger, err := access_log.CreateRunningAccessLogger(c)
if err != nil {
logger.Fatalf("Error creating access logger: %s\n", err)
}
args := proxy.ProxyArgs{
EndpointTimeout: c.EndpointTimeout,
Ip: c.Ip,
TraceKey: c.TraceKey,
Registry: registry,
Reporter: varz,
AccessLogger: accessLogger,
SecureCookies: c.SecureCookies,
}
p := proxy.NewProxy(args)
router, err := router.NewRouter(c, p, natsClient, registry, varz, logCounter)
if err != nil {
logger.Errorf("An error occurred: %s", err.Error())
os.Exit(1)
}
signals := make(chan os.Signal, 1)
signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT, syscall.SIGUSR1)
errChan := router.Run()
logger.Info("gorouter.started")
select {
case err := <-errChan:
if err != nil {
logger.Errorf("Error occurred: %s", err.Error())
os.Exit(1)
}
case sig := <-signals:
go func() {
for sig := range signals {
logger.Infod(
map[string]interface{}{
"signal": sig.String(),
},
"gorouter.signal.ignored",
)
}
}()
if sig == syscall.SIGUSR1 {
logger.Infod(
map[string]interface{}{
"timeout": (c.DrainTimeout).String(),
},
"gorouter.draining",
)
router.Drain(c.DrainTimeout)
}
stoppingAt := time.Now()
logger.Info("gorouter.stopping")
router.Stop()
logger.Infod(
map[string]interface{}{
"took": time.Since(stoppingAt).String(),
},
"gorouter.stopped",
)
}
os.Exit(0)
}
func main() {
flag.StringVar(&configFile, "c", "", "Configuration File")
cf_lager.AddFlags(flag.CommandLine)
flag.Parse()
c := config.DefaultConfig()
logCounter := schema.NewLogCounter()
if configFile != "" {
c = config.InitConfigFromFile(configFile)
}
prefix := "gorouter.stdout"
if c.Logging.Syslog != "" {
prefix = c.Logging.Syslog
}
logger, reconfigurableSink := cf_lager.New(prefix)
InitLoggerFromConfig(logger, c, logCounter)
logger.Info("starting")
err := dropsonde.Initialize(c.Logging.MetronAddress, c.Logging.JobName)
if err != nil {
logger.Fatal("dropsonde-initialize-error", err)
}
// setup number of procs
if c.GoMaxProcs != 0 {
runtime.GOMAXPROCS(c.GoMaxProcs)
}
if c.DebugAddr != "" {
cf_debug_server.Run(c.DebugAddr, reconfigurableSink)
}
logger.Info("setting-up-nats-connection")
natsClient := connectToNatsServer(logger.Session("nats"), c)
logger.Info("Successfully-connected-to-nats")
metricsReporter := metrics.NewMetricsReporter()
registry := rregistry.NewRouteRegistry(logger.Session("registry"), c, metricsReporter)
varz := rvarz.NewVarz(registry)
compositeReporter := metrics.NewCompositeReporter(varz, metricsReporter)
accessLogger, err := access_log.CreateRunningAccessLogger(logger.Session("access-log"), c)
if err != nil {
logger.Fatal("error-creating-access-logger", err)
}
var crypto secure.Crypto
var cryptoPrev secure.Crypto
if c.RouteServiceEnabled {
crypto = createCrypto(logger, c.RouteServiceSecret)
if c.RouteServiceSecretPrev != "" {
cryptoPrev = createCrypto(logger, c.RouteServiceSecretPrev)
}
}
proxy := buildProxy(logger.Session("proxy"), c, registry, accessLogger, compositeReporter, crypto, cryptoPrev)
router, err := router.NewRouter(logger.Session("router"), c, proxy, natsClient, registry, varz, logCounter, nil)
if err != nil {
logger.Fatal("initialize-router-error", err)
}
members := grouper.Members{
{"router", router},
}
if c.RoutingApiEnabled() {
logger.Info("setting-up-routing-api")
routeFetcher := setupRouteFetcher(logger.Session("route-fetcher"), c, registry)
// check connectivity to routing api
err := routeFetcher.FetchRoutes()
if err != nil {
logger.Fatal("routing-api-connection-failed", err)
}
members = append(members, grouper.Member{"router-fetcher", routeFetcher})
}
group := grouper.NewOrdered(os.Interrupt, members)
monitor := ifrit.Invoke(sigmon.New(group, syscall.SIGTERM, syscall.SIGINT, syscall.SIGUSR1))
err = <-monitor.Wait()
if err != nil {
logger.Error("gorouter.exited-with-failure", err)
os.Exit(1)
}
os.Exit(0)
}
func main() {
c := config.DefaultConfig()
logCounter := vcap.NewLogCounter()
if configFile != "" {
c = config.InitConfigFromFile(configFile)
}
InitLoggerFromConfig(c, logCounter)
logger := steno.NewLogger("router.main")
err := dropsonde.Initialize(c.Logging.MetronAddress, c.Logging.JobName)
if err != nil {
logger.Errorf("Dropsonde failed to initialize: %s", err.Error())
os.Exit(1)
}
// setup number of procs
if c.GoMaxProcs != 0 {
runtime.GOMAXPROCS(c.GoMaxProcs)
}
if c.DebugAddr != "" {
cf_debug_server.Run(c.DebugAddr)
}
logger.Info("Setting up etcd connection")
etcdEndpoint, err := endpoint.NewEtcdEndpoint(c)
if err != nil {
os.Exit(1)
}
metricsReporter := metrics.NewMetricsReporter()
registry := rregistry.NewRouteRegistry(c, etcdEndpoint, metricsReporter)
logger.Info("Setting up routing_api route fetcher")
setupRouteFetcher(c, registry)
varz := rvarz.NewVarz(registry)
compositeReporter := metrics.NewCompositeReporter(varz, metricsReporter)
accessLogger, err := access_log.CreateRunningAccessLogger(c)
if err != nil {
logger.Fatalf("Error creating access logger: %s\n", err)
}
var crypto secure.Crypto
var cryptoPrev secure.Crypto
if c.RouteServiceEnabled {
crypto = createCrypto(c.RouteServiceSecret, logger)
if c.RouteServiceSecretPrev != "" {
cryptoPrev = createCrypto(c.RouteServiceSecretPrev, logger)
}
}
proxy := buildProxy(c, registry, accessLogger, compositeReporter, crypto, cryptoPrev)
router, err := router.NewRouter(c, proxy, etcdEndpoint, registry, varz, logCounter)
if err != nil {
logger.Errorf("An error occurred: %s", err.Error())
os.Exit(1)
}
errChan := router.Run()
logger.Info("gorouter.started")
waitOnErrOrSignal(c, logger, errChan, router)
os.Exit(0)
}
})
})
Context("when not set", func() {
It("returns the empty string", func() {
Ω(cf_debug_server.DebugAddress(flags)).Should(Equal(""))
})
})
})
})
Describe("Run", func() {
It("serves debug information", func() {
address := "127.0.0.1:10003"
err := cf_debug_server.Run(address)
Ω(err).ShouldNot(HaveOccurred())
debugResponse, err := http.Get(fmt.Sprintf("http://%s/debug/pprof/goroutine", address))
Ω(err).ShouldNot(HaveOccurred())
debugInfo, err := ioutil.ReadAll(debugResponse.Body)
Ω(err).ShouldNot(HaveOccurred())
Ω(debugInfo).Should(ContainSubstring("goroutine profile: total"))
})
Context("when the address is already in use", func() {
It("returns an error", func() {
address := "127.0.0.1:10004"
func main() {
flag.StringVar(&configFile, "c", "", "Configuration File")
cf_lager.AddFlags(flag.CommandLine)
flag.Parse()
c := config.DefaultConfig()
logCounter := vcap.NewLogCounter()
if configFile != "" {
c = config.InitConfigFromFile(configFile)
}
InitLoggerFromConfig(c, logCounter)
logger := steno.NewLogger("router.main")
err := dropsonde.Initialize(c.Logging.MetronAddress, c.Logging.JobName)
if err != nil {
logger.Errorf("Dropsonde failed to initialize: %s", err.Error())
os.Exit(1)
}
// setup number of procs
if c.GoMaxProcs != 0 {
runtime.GOMAXPROCS(c.GoMaxProcs)
}
if c.DebugAddr != "" {
cf_debug_server.Run(c.DebugAddr)
}
logger.Info("Setting up NATs connection")
natsClient := connectToNatsServer(logger, c)
metricsReporter := metrics.NewMetricsReporter()
registry := rregistry.NewRouteRegistry(c, natsClient, metricsReporter)
varz := rvarz.NewVarz(registry)
compositeReporter := metrics.NewCompositeReporter(varz, metricsReporter)
accessLogger, err := access_log.CreateRunningAccessLogger(c)
if err != nil {
logger.Fatalf("Error creating access logger: %s\n", err)
}
var crypto secure.Crypto
var cryptoPrev secure.Crypto
if c.RouteServiceEnabled {
crypto = createCrypto(logger, c.RouteServiceSecret)
if c.RouteServiceSecretPrev != "" {
cryptoPrev = createCrypto(logger, c.RouteServiceSecretPrev)
}
}
proxy := buildProxy(c, registry, accessLogger, compositeReporter, crypto, cryptoPrev)
router, err := router.NewRouter(c, proxy, natsClient, registry, varz, logCounter, nil)
if err != nil {
logger.Errorf("An error occurred: %s", err.Error())
os.Exit(1)
}
members := grouper.Members{
{"router", router},
}
if c.RoutingApiEnabled() {
logger.Info("Setting up route fetcher")
routeFetcher := setupRouteFetcher(logger, c, registry)
members = append(members, grouper.Member{"router-fetcher", routeFetcher})
}
group := grouper.NewOrdered(os.Interrupt, members)
monitor := ifrit.Invoke(sigmon.New(group, syscall.SIGTERM, syscall.SIGINT, syscall.SIGUSR1))
err = <-monitor.Wait()
if err != nil {
logger.Error("gorouter.exited-with-failure")
os.Exit(1)
}
os.Exit(0)
}
Expect(cf_debug_server.DebugAddress(flags)).To(Equal(address))
})
})
Context("when not set", func() {
It("returns the empty string", func() {
Expect(cf_debug_server.DebugAddress(flags)).To(Equal(""))
})
})
})
})
Describe("Run", func() {
It("serves debug information", func() {
var err error
process, err = cf_debug_server.Run(address, sink)
Expect(err).NotTo(HaveOccurred())
debugResponse, err := http.Get(fmt.Sprintf("http://%s/debug/pprof/goroutine", address))
Expect(err).NotTo(HaveOccurred())
debugInfo, err := ioutil.ReadAll(debugResponse.Body)
Expect(err).NotTo(HaveOccurred())
Expect(debugInfo).To(ContainSubstring("goroutine profile: total"))
})
Context("when the address is already in use", func() {
var listener net.Listener