cmd: fix shutdown not being signaled properl

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

cmd/server/main.go

@@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"net/url"
-	"os"
 	"time"
 
 	"github.com/getsentry/sentry-go"
@@ -17,6 +16,8 @@ import (
 	"goauthentik.io/internal/web"
 )
 
+var running = true
+
 func main() {
 	log.SetLevel(log.DebugLevel)
 	config.DefaultConfig()
@@ -44,31 +45,30 @@ func main() {
 	defer g.Kill()
 	defer ws.Shutdown()
 	for {
-		go attemptStartBackend(g, ex)
+		go attemptStartBackend(g)
 		ws.Start()
-		// go attemptProxyStart(u, ex)
+		// go attemptProxyStart(u)
 
 		<-ex
-		log.WithField("logger", "authentik").Debug("shutting down webserver")
+		running = false
+		log.WithField("logger", "authentik").Info("shutting down webserver")
 		go ws.Shutdown()
-		log.WithField("logger", "authentik").Debug("killing gunicorn")
+		log.WithField("logger", "authentik").Info("killing gunicorn")
 		g.Kill()
 	}
 }
 
-func attemptStartBackend(g *gounicorn.GoUnicorn, exitSignal chan os.Signal) error {
+func attemptStartBackend(g *gounicorn.GoUnicorn) error {
 	for {
 		err := g.Start()
-		select {
-		case <-exitSignal:
+		if !running {
 			return nil
-		default:
-			log.WithField("logger", "authentik.g").WithError(err).Warning("gunicorn process died, restarting")
 		}
+		log.WithField("logger", "authentik.g").WithError(err).Warning("gunicorn process died, restarting")
 	}
 }
 
-func attemptProxyStart(u *url.URL, exitSignal chan os.Signal) error {
+func attemptProxyStart(u *url.URL) error {
 	maxTries := 100
 	attempt := 0
 	for {
@@ -93,12 +93,9 @@ func attemptProxyStart(u *url.URL, exitSignal chan os.Signal) error {
 			}
 			continue
 		}
-		select {
-		case <-exitSignal:
+		if !running {
 			ac.Shutdown()
 			return nil
-		default:
-			break
 		}
 	}
 	return nil

internal/gounicorn/gounicorn.go

@@ -48,7 +48,7 @@ func (g *GoUnicorn) initCmd() {
 
 func (g *GoUnicorn) Start() error {
 	if g.killed {
-		g.log.Info("Not restarting gunicorn since we're killed")
+		g.log.Debug("Not restarting gunicorn since we're killed")
 		return nil
 	}
 	if g.started {