also skip /etc/hosts on termination if disabled

main.go

@@ -45,6 +45,7 @@ func main() {
 
 	incomingSigs := make(chan os.Signal, 1)
 	signal.Notify(incomingSigs, syscall.SIGTERM, os.Interrupt)
+	logrus.Debug("waiting for cluster events")
 	for {
 		select {
 		case nodes := <-nodec:
@@ -71,9 +72,11 @@ func main() {
 		case <-incomingSigs:
 			logrus.Info("terminating...")
 			cluster.leave()
+			if !config.NoEtcHosts {
 				if err := writeToEtcHosts(nil); err != nil {
 					logrus.Errorf("could not remove stale hosts entries: %s", err)
 				}
+			}
 			if err := wg.downInterface(); err != nil {
 				logrus.Errorf("could not down interface: %s", err)
 			}