Replace long sleep by a select{}, add signal handling

- `select {}` is the idiomatic way of doing nothing
- Signal handling will avoid waiting 10s after a `docker compose down`
  if you have not set `init: true`

main.go

@@ -4,11 +4,21 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"os/signal"
+	"syscall"
 
 	trunks "github.com/shynuu/trunks/runtime"
 	"github.com/urfave/cli/v2"
 )
 
+// Initialize signals handling
+func initSignals() {
+	cancelChan := make(chan os.Signal, 1)
+	signal.Notify(cancelChan, syscall.SIGTERM, syscall.SIGINT)
+	func(_ os.Signal) {}(<-cancelChan)
+	os.Exit(0)
+}
+
 func main() {
 	var config string
 	var flush bool = false
@@ -82,7 +92,7 @@ func main() {
 			return nil
 		},
 	}
-
+	go initSignals()
 	err := app.Run(os.Args)
 	if err != nil {
 		log.Fatal(err)

runtime/trunks.go

@@ -203,7 +203,7 @@ func (t *TrunksConfig) Run() {
 		scheduler.StartBlocking()
 	} else {
 		log.Println("Trunks started without ACM")
-		time.Sleep(time.Duration(1<<63 - 1))
+		select {}
 	}
 
 }