Fix missing loop (#1398)

* WithRoles variadic args

* Load Rules

* Timer => Ticker

* Add missing for loop in auth service

Co-authored-by: Ben Toogood <ben@micro.mu>

auth/service/service.go

@@ -54,8 +54,10 @@ func (s *svc) Init(opts ...auth.Option) {
 	// load rules periodically from the auth service
 	timer := time.NewTicker(time.Second * 30)
 	go func() {
+		for {
 			s.loadRules()
 			<-timer.C
+		}
 	}()
 }