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Dockerfile

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+# Stage 1: Build React App
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Dependencies installieren
+COPY package*.json ./
+RUN npm ci
+
+# App bauen
+COPY . .
+RUN npm run build
+
+# Stage 2: Serve with nginx
+FROM nginx:alpine
+
+# nginx.conf kopieren
+COPY nginx/nginx.conf /etc/nginx/nginx.conf
+
+# Built app aus builder stage kopieren
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Port 80 exponieren
+EXPOSE 80
+
+# nginx starten
+CMD ["nginx", "-g", "daemon off;"]