Update

Dockerfile

@@ -1,20 +1,53 @@
-# Stage 1: Frontend build
+# ===============================
+# Stage 1: Frontend Build
+# ===============================
 FROM node:20-alpine AS frontend-build
+
+# Arbeitsverzeichnis
 WORKDIR /app/frontend
+
+# Nur package.json & package-lock.json kopieren und Dependencies installieren
 COPY frontend/package.json frontend/package-lock.json ./
 RUN npm ci
+
+# Restliche Frontend-Dateien kopieren
 COPY frontend/ ./
+
+# Frontend Build erzeugen (statische Dateien)
 RUN npm run build
 
+
+# ===============================
 # Stage 2: Backend + Frontend
+# ===============================
 FROM node:20-alpine AS runtime
+
+# Arbeitsverzeichnis
 WORKDIR /app/backend
+
+# Backend Dependencies installieren
 COPY backend/package.json backend/package-lock.json ./
 RUN npm ci --only=production
-COPY backend/ ./
-COPY --from=frontend-build /app/frontend/dist ./public
 
+# Backend-Code kopieren
+COPY backend/ ./
+
+# public leeren
+RUN rm -rf ./public/*
+
+# Inhalt von dist inklusive Unterordner direkt nach public kopieren
+COPY --from=frontend-build /app/frontend/dist/. ./public/
+
+# Environment
 ENV NODE_ENV=production
-EXPOSE 4000
+
+# Ports
+# Backend intern: 4001
+# Frontend exposed: 5173
+EXPOSE 5173
+
+# Node User
 USER node
+
+# Container startet das Backend (liefert statisches Frontend)
 CMD ["node", "index.js"]