fix: add shutdown signal and flag for renterd

main.go

@@ -90,10 +90,16 @@ func main() {
 	app.Get("/swagger/{any:path}", swaggerUI)
 
 	// Start the Iris app and listen for incoming requests on port 80
-	log.Fatal(app.Listen(":8080", func(app *iris.Application) {
+	err := app.Listen(":8080", func(app *iris.Application) {
 		routes := app.GetRoutes()
 		for _, route := range routes {
 			log.Println(route)
 		}
-	}))
+	})
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	renterd.ShutdownComplete()
 }

renterd/main.go

@@ -46,11 +46,13 @@ var (
 	builddate = "?"
 
 	// fetched once, then cached
-	apiPassword *string
-	apiAddr     *string
-	seed        *types.PrivateKey
-	ready       = make(chan bool)
-	readyFired  = false
+	apiPassword   *string
+	apiAddr       *string
+	seed          *types.PrivateKey
+	ready         = make(chan bool)
+	readyFired    = false
+	shutdown      = make(chan bool)
+	shutdownFired = false
 )
 
 func check(context string, err error) {
@@ -367,6 +369,8 @@ func Main() {
 			log.Fatalf("Shutdown function %v failed: %v", i+1, err)
 		}
 	}
+
+	shutdown <- true
 }
 
 func GetApiAddr() string {
@@ -382,3 +386,13 @@ func Ready() bool {
 
 	return true
 }
+
+func ShutdownComplete() bool {
+	if shutdownFired {
+		return true
+	}
+
+	shutdownFired = <-shutdown
+
+	return true
+}