pkg/alerting/alerting.go

@@ -38,6 +38,7 @@ type Alerter interface {
 
 	Enabled() bool
 	Go(context.Context)
+	HUP(*config.Config)
 
 	stats
 }
@@ -101,9 +102,7 @@ func New(cfg config.Alerting, tgCache tgstore.Store, opts ...AlertOption) Alerte
 		tgCache:    tgCache,
 	}
 
-	if cfg.Renotify != nil {
+	as.reload()
-		as.renotify = cfg.Renotify.Duration()
-	}
 
 	for _, opt := range opts {
 		opt(as)
@@ -122,6 +121,21 @@ func New(cfg config.Alerting, tgCache tgstore.Store, opts ...AlertOption) Alerte
 	return as
 }
 
+func (as *alerter) reload() {
+	if as.cfg.Renotify != nil {
+		as.renotify = as.cfg.Renotify.Duration()
+	}
+}
+
+func (as *alerter) HUP(cfg *config.Config) {
+	as.Lock()
+	defer as.Unlock()
+
+	log.Debug().Msg("reloading alert config")
+	as.cfg = cfg.Alerting
+	as.reload()
+}
+
 // Go is the alerting loop. It does not start a goroutine.
 func (as *alerter) Go(ctx context.Context) {
 	ctx = entities.CtxWithSubject(ctx, &entities.SystemServiceSubject{Name: "alerter"})
@@ -381,3 +395,4 @@ func (*noopAlerter) SinkType() string                            { return "noopA
 func (*noopAlerter) Call(_ context.Context, _ *calls.Call) error { return nil }
 func (*noopAlerter) Go(_ context.Context)                        {}
 func (*noopAlerter) Enabled() bool                               { return false }
+func (*noopAlerter) HUP(_ *config.Config) { }

pkg/server/signals.go

@@ -18,6 +18,7 @@ func (s *Server) huppers() []hupper {
 		s.logger,
 		s.auth,
 		s.tgs,
+		s.alerter,
 	}
 }