Add README and WIP server lifecycle

cmd/rmsn/rmsn.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"os/signal"
+
+	"git.ctrlz.es/mgdelacroix/rmsn/server"
+)
+
+func main() {
+	configFlag := flag.String("config", "rmsn.yml", "the configuration path")
+	flag.Parse()
+
+	srv, err := server.NewServerWithConfigPath(*configFlag)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "cannot create server: %s", err)
+		os.Exit(1)
+	}
+
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt)
+	closed := make(chan bool, 1)
+
+	go func() {
+		fmt.Println("Starting rmsn")
+		srv.Start() // ToDo: this should be blocking
+		closed <- true
+	}()
+
+	s := <-c
+	fmt.Printf("Got signal %s, exiting...\n", s)
+	srv.Close()
+	<-closed
+}