ludo web based game config file changes

Dockerfile

@@ -1,19 +1,111 @@
-FROM node:14 as frontend
+# FROM node:14 as frontend
+# WORKDIR /app
+# COPY . /app
+# RUN npm install --production
+# RUN npm run build
+
+# FROM node:14 as backend
+# WORKDIR /app
+# COPY /backend /app
+# RUN npm install
+
+# FROM node:14
+# WORKDIR /app
+# COPY --from=backend /app /app/
+# COPY --from=frontend /app/build /app/build
+
+# EXPOSE 8080
+
+# CMD ["npm", "run", "start"]
+
+
+const express = require('express');
+const cors = require('cors');
+const path = require('path');
+const cookieParser = require('cookie-parser');
+const mongoose = require('mongoose');
+require('dotenv').config();
+const { sessionMiddleware } = require('./config/session');
+
+const PORT = process.env.PORT || 5000;
+
+const app = express();
+
+app.use(cookieParser());
+app.use(express.urlencoded({ extended: true }));
+app.use(express.json());
+app.set('trust proxy', 1);
+
+/* ---------- CORS ---------- */
+app.use(
+    cors({
+        origin:
+            process.env.NODE_ENV === 'production'
+                ? true               // same origin (Docker / prod)
+                : 'http://localhost:3000',
+        credentials: true,
+    })
+);
+
+app.use(sessionMiddleware);
+
+const server = app.listen(PORT, "0.0.0.0", () => {
+    console.log(`Server listening on port ${PORT}`);
+});
+
+/* ---------- Mongo + Socket ---------- */
+require('./config/database')(mongoose);
+require('./config/socket')(server);
+
+/* ---------- Serve React build ---------- */
+if (process.env.NODE_ENV === 'production') {
+    const buildPath = path.resolve(__dirname, 'build');
+
+    app.use(express.static(buildPath));
+
+    app.get('*', (req, res) => {
+        res.sendFile(path.join(buildPath, 'index.html'));
+    });
+}
+
+module.exports = { server };
+root@DietPi:~/mern-ludo/backend# ^C
+root@DietPi:~/mern-ludo/backend# cd .
+root@DietPi:~/mern-ludo/backend# cd ..
+root@DietPi:~/mern-ludo# nano Dockerfile
+root@DietPi:~/mern-ludo# cat Dockerfile
+# Node 20 for Pi 5 (ARM64)
+FROM node:20-bullseye-slim
+
 WORKDIR /app
+
+# Copy all files
 COPY . /app
-RUN npm install --production
+
+# Install frontend (root) dependencies
+RUN npm install --legacy-peer-deps
+
+# Build frontend
 RUN npm run build
 
-FROM node:14 as backend
-WORKDIR /app
-COPY /backend /app
-RUN npm install
+# Install backend dependencies
+RUN cd backend && npm install --production --legacy-peer-deps
 
-FROM node:14
-WORKDIR /app
-COPY --from=backend /app /app/
-COPY --from=frontend /app/build /app/build
+# Move frontend build into backend/public for Express
+# RUN cp -r build backend/public
+RUN rm -rf backend/build
+RUN cp -r build backend/build
 
-EXPOSE 8080
+# Copy wait-for-mongo.sh and make it executable
+COPY wait-for-mongo.sh ./
+RUN chmod +x wait-for-mongo.sh
 
-CMD ["npm", "run", "start"]
+# Default fallback values (can be overridden by Compose)
+ENV NODE_ENV=production
+ENV PORT=8080
+ENV CONNECTION_URI=mongodb://mongo:27017/ludo?replicaSet=rs0
+
+EXPOSE 18081
+
+# Start backend with wait-for-mongo
+CMD ["bash", "./wait-for-mongo.sh", "mongo", "27017", "node", "backend/server.js"]