// ServeListenerForever is the same as ServeForever except it uses the specified
// listener. This is useful in testing when an ephemeral port should be used.
func ServeListenerForever(l net.Listener) error {
// Wrap with logger
handler := logginghandler.New(http.DefaultServeMux, log.GetVerbosity())
_, aps, err := net.SplitHostPort(l.Addr().String())
if err != nil {
log.Errorf("govtil/net/server: failed to get port - %v", err)
}
log.Printf("govtil/net/server: starting on port %v", aps)
// Serve
err = http.Serve(l, handler)
if err != nil {
if vnet.SocketClosed(err) {
err = nil // closed due to signal, no error
} else {
log.Errorf("govtil/net/server: %v", err)
}
}
log.Println("govtil/net/server: Terminating")
return err
}
// Serve on a given port
//
// The server will log to the default logger and will gracefully terminate on
// receipt of an interrupt or kill signal.
//
// The following URLs are defined:
// /
// /healthz
// /varz
// /streamz
// /birpc
// /debug/pprof
//
func ServeForever(port int) error {
addr := ":" + fmt.Sprint(port)
l, err := net.Listen("tcp", addr)
if err != nil {
log.Errorln("govtil/net/server: Failed to listen on", port, err)
return err
}
// Close listen port on signals (causes http.Serve() to return)
sigch := make(chan os.Signal)
signal.Notify(sigch, []os.Signal{
syscall.SIGABRT,
syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGKILL,
syscall.SIGPWR,
syscall.SIGQUIT,
syscall.SIGSTOP,
syscall.SIGTERM,
}...)
go func() {
sig := <-sigch
log.Println("govtil/net/server: Closing listen port", l.Addr().String(), "due to signal", sig)
l.Close()
}()
logginghandler := logginghandler.New(http.DefaultServeMux, log.NORMAL)
err = http.Serve(l, logginghandler)
if err != nil {
if vnet.SocketClosed(err) {
err = nil // closed due to signal, no error
} else {
log.Errorln("govtil/net/server:", err)
}
}
log.Println("govtil/net/server: Terminating")
return err
}
