func main() {
flags := flag.NewFlagSet(os.Args[0], flag.ExitOnError)
pidfile := flags.String("pidfile", "", "Path to pid file")
scriptPath := flags.String("scriptPath", "./check_node_validity.sh", "Path to script file")
cf_lager.AddFlags(flags)
serviceConfig := service_config.New()
serviceConfig.AddFlags(flags)
flags.Set("configPath", "registrar_settings.yml")
flags.Parse(os.Args[1:])
logger, _ := cf_lager.New("Route Registrar")
logger.Info("Route Registrar started")
var registrarConfig config.Config
err := serviceConfig.Read(®istrarConfig)
if err != nil {
logger.Fatal("error parsing file: %s\n", err)
}
registrar := NewRegistrar(registrarConfig, logger)
//add health check handler
checker := InitHealthChecker(registrarConfig, logger, *scriptPath)
if checker != nil {
registrar.AddHealthCheckHandler(checker)
}
if *pidfile != "" {
pid := strconv.Itoa(os.Getpid())
err := ioutil.WriteFile(*pidfile, []byte(pid), 0644)
if err != nil {
logger.Fatal(
"error writing pid to pidfile",
err,
lager.Data{
"pid": pid,
"pidfile": *pidfile},
)
}
}
registrar.RegisterRoutes()
os.Exit(1)
}
It("Sends a router.register message and does not send a router.unregister message", func() {
// Detect when a router.register message gets sent
var registered chan (string)
registered = subscribeToRegisterEvents(func(msg *yagnats.Message) {
registered <- string(msg.Payload)
})
// Detect when an unregister message gets sent
var unregistered chan (bool)
unregistered = subscribeToUnregisterEvents(func(msg *yagnats.Message) {
unregistered <- true
})
go func() {
registrar := NewRegistrar(config, logger)
registrar.RegisterRoutes()
}()
// Assert that we got the right router.register message
var receivedMessage string
Eventually(registered, 2).Should(Receive(&receivedMessage))
Expect(receivedMessage).To(Equal(`{"uris":["riakcs.vcap.me"],"host":"127.0.0.1","port":8080}`))
// Assert that we never got a router.unregister message
Consistently(unregistered, 2).ShouldNot(Receive())
})
It("Emits a router.unregister message when SIGINT is sent to the registrar's signal channel", func() {
verifySignalTriggersUnregister(syscall.SIGINT, logger)
})
