// SetupMainServer allocates a listener socket and starts a web server with graceful restart
// on the specified IP address and port. The ipPort has the format "ip_address:port" or
// ":port" for 0.0.0.0/port.
func SetupMainServer(ipPort string, mux *web.Mux) {
listener, err := net.Listen("tcp4", ipPort)
if err != nil {
FatalError(err.Error())
}
// Install our handler at the root of the standard net/http default mux.
// This allows packages like expvar to continue working as expected.
mux.Compile()
http.Handle("/", mux)
graceful.HandleSignals()
graceful.PreHook(func() { log15.Warn("Gracefully stopping on signal") })
graceful.PostHook(func() { log.Printf("Gracefully stopped") })
err = graceful.Serve(listener, http.DefaultServeMux)
if err != nil {
FatalError(err.Error())
}
graceful.Wait()
}