ADD: added dockerfiles and a logger for the backend

Dockerfile.backend

@@ -0,0 +1,29 @@
+# =========================
+# Build stage
+# =========================
+FROM golang:1.25.5-alpine AS builder
+
+WORKDIR /app
+
+COPY backend/go.mod backend/go.sum ./
+RUN go mod download
+
+COPY backend/ ./
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -o server ./cmd/server
+
+
+# =========================
+# Runtime stage
+# =========================
+FROM gcr.io/distroless/base-debian12
+
+WORKDIR /app
+
+COPY --from=builder /app/server ./server
+
+EXPOSE 8081
+
+USER nonroot:nonroot
+ENTRYPOINT ["./server"]

Dockerfile.frontend

@@ -0,0 +1,30 @@
+# =========================
+# Build stage
+# =========================
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+COPY frontend/studia/package*.json ./
+RUN npm ci
+
+COPY frontend/studia/ ./
+RUN npm run build
+
+
+# =========================
+# Runtime stage
+# =========================
+FROM nginx:1.27-alpine
+
+# Remove default nginx config
+RUN rm /etc/nginx/conf.d/default.conf
+
+# Custom nginx config
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+# Vite build output
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+EXPOSE 3000
+CMD ["nginx", "-g", "daemon off;"]

backend/cmd/server/main.go

@@ -1,12 +1,13 @@
 package main
 
 import (
-	"log"
 	"studia/internal/config"
+	"studia/internal/logger"
 	"studia/internal/server"
 )
 
 func main() {
+	logger.Init()
 
 	cfg := config.New()
 
@@ -16,8 +17,8 @@ func main() {
 	cfg.DatabasePassword = "12345678"
 	cfg.DatabaseName = "studia"
 
-	log.Println("Configuration loaded:", cfg)
+	logger.Log.Info().Msgf("Configuration loaded: %+v", cfg)
 
-	log.Println("Starting server...")
+	logger.Log.Info().Msg("Starting server...")
 	server.StartServer(cfg)
 }

backend/go.mod

@@ -10,6 +10,7 @@ require (
 require (
 	github.com/gin-gonic/contrib v0.0.0-20250521004450-2b1292699c15 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/spf13/pflag v1.0.9 // indirect
 )
 
@@ -35,6 +36,7 @@ require (
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/quic-go/qpack v0.5.1 // indirect
 	github.com/quic-go/quic-go v0.54.0 // indirect
+	github.com/rs/zerolog v1.34.0
 	github.com/spf13/cobra v1.10.2
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.3.0 // indirect

backend/go.sum

@@ -4,6 +4,7 @@ github.com/bytedance/sonic/loader v0.3.0 h1:dskwH8edlzNMctoruo8FPTJDF3vLtDT0sXZw
 github.com/bytedance/sonic/loader v0.3.0/go.mod h1:N8A3vUdtUebEY2/VQC0MyhYeKUFosQU6FxH2JmUe6VI=
 github.com/cloudwego/base64x v0.1.6 h1:t11wG9AECkCDk5fMSoxmufanudBtJ+/HemLstXDLI2M=
 github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gEHfghB2IPU=
+github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -34,6 +35,7 @@ github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4=
 github.com/goccy/go-json v0.10.5/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
 github.com/goccy/go-yaml v1.18.0 h1:8W7wMFS12Pcas7KU+VVkaiCng+kG8QiFeFwzFb+rwuw=
 github.com/goccy/go-yaml v1.18.0/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
+github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/golang-jwt/jwt/v5 v5.3.0 h1:pv4AsKCKKZuqlgs5sUmn4x8UlGa0kEVt/puTpKx9vvo=
 github.com/golang-jwt/jwt/v5 v5.3.0/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArsqaEUEa5bE=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
@@ -49,6 +51,10 @@ github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
@@ -59,12 +65,16 @@ github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9G
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4=
 github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/quic-go/qpack v0.5.1 h1:giqksBPnT/HDtZ6VhtFKgoLOWmlyo9Ei6u9PqzIMbhI=
 github.com/quic-go/qpack v0.5.1/go.mod h1:+PC4XFrEskIVkcLzpEkbLqq1uCoxPhQuvK5rH1ZgaEg=
 github.com/quic-go/quic-go v0.54.0 h1:6s1YB9QotYI6Ospeiguknbp2Znb/jZYjZLRXn9kMQBg=
 github.com/quic-go/quic-go v0.54.0/go.mod h1:e68ZEaCdyviluZmy44P6Iey98v/Wfz6HCjQEm+l8zTY=
+github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
+github.com/rs/zerolog v1.34.0 h1:k43nTLIwcTVQAncfCw4KZ2VY6ukYoZaBPNOE8txlOeY=
+github.com/rs/zerolog v1.34.0/go.mod h1:bJsvje4Z08ROH4Nhs5iH600c3IkWhwp44iRc54W6wYQ=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
 github.com/spf13/cobra v1.10.2/go.mod h1:7C1pvHqHw5A4vrJfjNwvOdzYu0Gml16OCs2GRiTUUS4=
@@ -96,7 +106,9 @@ golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
 golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
 golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
 golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
 golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=

backend/internal/database/database.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"log"
 	"studia/internal/config"
+	"studia/internal/logger"
 
 	_ "github.com/lib/pq" // Import the PostgreSQL driver
 )
@@ -22,7 +23,7 @@ func New(cfg *config.Config) *sql.DB {
 		WHERE table_schema = 'public'
 	`)
 	if err != nil {
-		log.Println("failed to query existing tables:", err)
+		logger.Log.Error().Err(err).Msg("Failed to query existing tables")
 	}
 
 	missing := checkTables(expectedTables, existing)
@@ -32,7 +33,7 @@ func New(cfg *config.Config) *sql.DB {
 		// Here you would normally run migrations to create the missing tables
 		// For simplicity, we just log the missing tables
 	} else {
-		log.Println("All expected tables are present.")
+		logger.Log.Info().Msg("All expected tables are present.")
 	}
 
 	return db
@@ -41,7 +42,7 @@ func New(cfg *config.Config) *sql.DB {
 func setupDatabase(cfg *config.Config) *sql.DB {
 	// Database connection setup logic here
 
-	log.Println(cfg)
+	logger.Log.Println(cfg)
 	switch cfg.DatabaseDriver {
 	case "postgres":
 		// Setup Postgres connection

backend/internal/logger/logger.go

@@ -0,0 +1,46 @@
+// internal/logger/logger.go
+package logger
+
+import (
+	"io"
+	"os"
+	"time"
+
+	"github.com/rs/zerolog"
+)
+
+var Log zerolog.Logger
+
+// Init initializes the global logger.
+// It configures console output, timestamps, and log level from environment.
+func Init() {
+	// Determine output writer
+	consoleWriter := zerolog.ConsoleWriter{
+		Out:        os.Stdout,
+		TimeFormat: time.RFC3339,
+	}
+
+	// You can switch to JSON output by replacing with os.Stdout directly:
+	// writer := os.Stdout
+
+	// Create the global logger
+	Log = zerolog.New(consoleWriter).
+		Level(zerolog.TraceLevel).With().Caller().Logger().
+		With().
+		Timestamp().
+		Logger()
+
+	// Set log level from environment variable, default to InfoLevel
+	level := zerolog.InfoLevel
+	if lvlStr, ok := os.LookupEnv("LOG_LEVEL"); ok {
+		if parsedLevel, err := zerolog.ParseLevel(lvlStr); err == nil {
+			level = parsedLevel
+		}
+	}
+	zerolog.SetGlobalLevel(level)
+}
+
+// SetOutput allows changing output (e.g., to a file)
+func SetOutput(w io.Writer) {
+	Log = Log.Output(w)
+}

backend/internal/server/server.go

@@ -1,12 +1,10 @@
 package server
 
 import (
-	"fmt"
-	"log"
-	"os"
 	"studia/internal/auth"
 	"studia/internal/config"
 	"studia/internal/database"
+	"studia/internal/logger"
 	"time"
 
 	"github.com/gin-contrib/cors"
@@ -21,18 +19,18 @@ func StartServer(cfg *config.Config) {
 
 	// 2. CORS-Konfiguration
 	// Lese die Frontend-URL aus den Umgebungsvariablen
-	frontendURL := os.Getenv("FRONTEND_URL")
+	// frontendURL := os.Getenv("FRONTEND_URL")
 
 	// Lokaler Fallback (wichtig für die Entwicklung)
 	allowedOrigins := []string{
 		"http://localhost:5173", // Gängiger Vite-Dev-Port
 	}
 
-	if frontendURL != "" {
+	if cfg.FrontendURL != "" {
-		allowedOrigins = append(allowedOrigins, frontendURL)
+		allowedOrigins = append(allowedOrigins, cfg.FrontendURL)
-		fmt.Printf("CORS: Erlaubte Produktiv-URL hinzugefügt: %s\n", frontendURL)
+		logger.Log.Printf("CORS: Erlaubte Produktiv-URL hinzugefügt: %s\n", cfg.FrontendURL)
 	} else {
-		log.Println("ACHTUNG: FRONTEND_URL fehlt in den Umgebungsvariablen. Nur lokale URLs erlaubt.")
+		logger.Log.Error().Msg("ACHTUNG: FRONTEND_URL fehlt in den Umgebungsvariablen. Nur lokale URLs erlaubt.")
 	}
 
 	// CORS

docker-compose.yaml

@@ -0,0 +1,24 @@
+version: "3.9"
+
+services:
+  backend:
+    build:
+      context: .
+      dockerfile: Dockerfile.backend
+    container_name: studia-backend
+    expose:
+      - "9090"
+    environment:
+      - PORT=9090
+    restart: unless-stopped
+
+  frontend:
+    build:
+      context: .
+      dockerfile: Dockerfile.frontend
+    container_name: studia-frontend
+    ports:
+      - "3000:3000"
+    depends_on:
+      - backend
+    restart: unless-stopped

frontend/studia/src/api/user.tsx

@@ -11,11 +11,11 @@ export async function loginUser(email:string, password: string) {
   return res.json(); // { token: string }
 }
 
-export async function registerUser(email:string, password: string){
+export async function registerUser(email:string, username:string, password: string){
   const res = await fetch(`${API_URL}/register`, {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ email, password }),
+    body: JSON.stringify({ email,username, password }),
   });
   if (!res.ok) throw new Error('Registrierung fehlgeschlagen');
   return res.json(); // { token: string }

frontend/studia/src/components/LoginModal.tsx

@@ -1,4 +1,4 @@
-import {loginUser} from "../api/user";
+import {loginUser, registerUser} from "../api/user";
 import { useState } from "react";
 
 export default function LoginModal({ isOpen, onClose, onSuccess }: any) {
@@ -36,7 +36,11 @@ export default function LoginModal({ isOpen, onClose, onSuccess }: any) {
           }
 
           // TODO: Call registerUser API
-          // const res = await registerUser(email as string, username as string, password as string);
+          const res = await registerUser(email as string, username as string, password as string);
+          if (!res.ok) {
+            alert("Registration failed!");
+            return;
+          }
 
           // TODO: Implement actual registration logic here
           console.log("Registering with:", email, password);

nginx.conf

@@ -0,0 +1,17 @@
+server {
+  listen 3000;
+
+  root /usr/share/nginx/html;
+  index index.html;
+
+  location / {
+    try_files $uri /index.html;
+  }
+
+  location /api/ {
+    proxy_pass http://backend:8081;
+    proxy_http_version 1.1;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+  }
+}