fix: improve error logging

backend/main.go

@@ -24,6 +24,8 @@ var imageProcessDurationResize = imageProcessDuration.WithLabelValues("resize")
 var imageProcessDurationWrite = imageProcessDuration.WithLabelValues("write")
 
 func main() {
+	defer shared.ErrorHandler()
+
 	configFile, err := os.Open("config.yaml")
 	if err != nil {
 		log.Fatalf("error opening config file: %s", err.Error())

frontend/main.go

@@ -12,6 +12,8 @@ import (
 )
 
 func main() {
+	defer shared.ErrorHandler()
+
 	configFile, err := os.Open("config.yaml")
 	if err != nil {
 		log.Fatalf("error opening config file: %s", err.Error())

shared/error.go

+package shared
+
+import "log"
+
+func ErrorHandler() {
+	if err := recover(); err != nil {
+		log.Fatalf("error occured unexpectedly: %s", err)
+	}
+}