ludo web based game config file changes

Feature deployment

.circleci/config.yml

@@ -1,12 +1,13 @@
 version: 2.1
-
+orbs:
+    aws-cli: circleci/aws-cli@4.1.2
+    aws-ecr: circleci/aws-ecr@9.4.0
+    aws-ecs: circleci/aws-ecs@4.0.0
 jobs:
     build_and_test:
         docker:
             - image: circleci/node:14
-
         working_directory: ~/app
-
         steps:
             - checkout
             - run:
@@ -26,9 +27,43 @@ jobs:
                   name: Test Frontend
                   command: |
                       npm test
+    run_task:
+        docker:
+            - image: cimg/python:3.10
+        steps:
+            - aws-cli/setup:
+                    role_arn: arn:aws:iam::982081055194:role/circleci-ecs-ecr
+                    role_session_name: example-session
+            - aws-ecs/run_task:
+                    awsvpc: true
+                    assign_public_ip: ENABLED
+                    cluster: arn:aws:ecs:eu-north-1:982081055194:cluster/mern-ludo-cluster
+                    launch_type: FARGATE
+                    task_definition: mern-ludo-fargate
+                    subnet_ids: subnet-06f63f5063b74a7c9,subnet-07cdbe8b01b46e0b7,subnet-06dbac60591c79f5d
+                    security_group_ids: sg-0cfd2369802b8be43
 
 workflows:
-    version: 2
-    build:
+    build_and_test_and_deploy:
         jobs:
             - build_and_test
+            - aws-ecr/build_and_push_image:
+                  auth:
+                      - aws-cli/setup:
+                            role_arn: arn:aws:iam::982081055194:role/circleci-ecs-ecr
+                            role_session_name: ecr-session
+                  repo: mern-ludo
+                  public_registry: true
+                  requires:
+                      - build_and_test
+                  filters:
+                      branches:
+                          only:
+                              - main
+            - run_task:
+                  requires:
+                      - aws-ecr/build_and_push_image
+                  filters:
+                      branches:
+                          only:
+                              - main

.dockerignore

@@ -0,0 +1,35 @@
+# Include any files or directories that you don't want to be copied to your
+# container here (e.g., local build artifacts, temporary files, etc.).
+#
+# For more help, visit the .dockerignore file reference guide at
+# https://docs.docker.com/engine/reference/builder/#dockerignore-file
+
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/.next
+**/.cache
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/charts
+**/docker-compose*
+**/compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+**/build
+**/dist
+LICENSE
+README.md
+node_modules

.env

@@ -0,0 +1,8 @@
+# MongoDB connection for backend
+CONNECTION_URI=mongodb://admin:adminpassword@mongo:27017/ludo?authSource=admin&replicaSet=rs0
+
+# Backend port
+PORT=18081
+
+# Environment
+NODE_ENV=production

.gitignore

@@ -9,7 +9,7 @@ backend/node_modules
 /coverage
 
 # production
-/build
+build
 
 # misc
 .DS_Store
@@ -21,3 +21,4 @@ backend/node_modules
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+# .env

Dockerfile

@@ -0,0 +1,111 @@
+# 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
+
+# Install frontend (root) dependencies
+RUN npm install --legacy-peer-deps
+
+# Build frontend
+RUN npm run build
+
+# Install backend dependencies
+RUN cd backend && npm install --production --legacy-peer-deps
+
+# 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
+
+# Copy wait-for-mongo.sh and make it executable
+COPY wait-for-mongo.sh ./
+RUN chmod +x wait-for-mongo.sh
+
+# 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"]

README.md

@@ -1,11 +1,10 @@
-# <center>Online Multiplayer Ludo Game</center>
-
-## About
+<h1  align="center">Online Multiplayer Ludo Game </h1>
 
 Ludo Online is a multiplayer web-based implementation of the classic board game Ludo, built using the MERN stack and integrated with SocketIO for real-time communication.
-
-\>\> Play Online here <<
-\>\> [Watch YouTube Video here](https://youtu.be/mGMnH9Nvsyw) <<
+  
+<p align="center">
+>> <a href="https://youtu.be/mGMnH9Nvsyw">Watch YouTube Video here</a> <<
+  </p>
 
 ## Architecture
 
@@ -14,34 +13,49 @@ Ludo Online is a multiplayer web-based implementation of the classic board game
 ## Tech Stack
 
 Frontend:
+
 ![JavaScript](https://img.shields.io/badge/javascript-%23323330.svg?style=for-the-badge&logo=javascript&logoColor=%23F7DF1E) ![React](https://img.shields.io/badge/react-%2320232a.svg?style=for-the-badge&logo=react&logoColor=%2361DAFB) ![React Router](https://img.shields.io/badge/React_Router-CA4245?style=for-the-badge&logo=react-router&logoColor=white)
 ![CSS3](https://img.shields.io/badge/css3-%231572B6.svg?style=for-the-badge&logo=css3&logoColor=white) ![HTML5](https://img.shields.io/badge/html5-%23E34F26.svg?style=for-the-badge&logo=html5&logoColor=white) ![MUI](https://img.shields.io/badge/MUI-%230081CB.svg?style=for-the-badge&logo=mui&logoColor=white)
+
 Backend:
+
 ![MongoDB](https://img.shields.io/badge/MongoDB-%234ea94b.svg?style=for-the-badge&logo=mongodb&logoColor=white) ![Express.js](https://img.shields.io/badge/express.js-%23404d59.svg?style=for-the-badge&logo=express&logoColor=%2361DAFB) ![Socket.io](https://img.shields.io/badge/Socket.io-black?style=for-the-badge&logo=socket.io&badgeColor=010101) ![NodeJS](https://img.shields.io/badge/node.js-6DA55F?style=for-the-badge&logo=node.js&logoColor=white)
+
 Tests:
+
 ![cypress](https://img.shields.io/badge/-cypress-%23E5E5E5?style=for-the-badge&logo=cypress&logoColor=058a5e) ![Mocha](https://img.shields.io/badge/-mocha-%238D6748?style=for-the-badge&logo=mocha&logoColor=white) ![Jest](https://img.shields.io/badge/-jest-%23C21325?style=for-the-badge&logo=jest&logoColor=white)
-Tools:
+
+Other:
+
 ![Docker](https://img.shields.io/badge/docker-%230db7ed.svg?style=for-the-badge&logo=docker&logoColor=white) ![AWS](https://img.shields.io/badge/AWS-%23FF9900.svg?style=for-the-badge&logo=amazon-aws&logoColor=white) ![CircleCI](https://img.shields.io/badge/circle%20ci-%23161616.svg?style=for-the-badge&logo=circleci&logoColor=white) ![Git](https://img.shields.io/badge/git-%23F05033.svg?style=for-the-badge&logo=git&logoColor=white) ![Jira](https://img.shields.io/badge/jira-%230A0FFF.svg?style=for-the-badge&logo=jira&logoColor=white)
 
 ## Key Features and Challenges
 
 -   Maintained session consistency with **Express Session** and **MongoDB**.
+
 -   Enabled real-time communication via **WebSocket** and **SocketIO**.
+
 -   Maintained code reliability by implementing unit and integration tests using **Mocha**, **Chai**, and **Jest**.
--   Hosted in a **Docker** container on **AWS EC2**.
--   Established CI/CD using **CircleCI**.
+
 -   Implemented E2E tests utilizing **Cypress**, addressing challenges related to [testing collaboration](https://docs.cypress.io/guides/references/trade-offs#Multiple-browsers-open-at-the-same-time) and canvas functionality in the application.
 
+-   Established a CI/CD pipeline using **CircleCI**, with pushing **Docker** container to **AWS ECR** and deploying to **AWS ECS**
+
+
 ## Installation
 
 1.  Download this repository
+
 2.  Generate your own [mongoDB atlas](https://www.mongodb.com) credential URL. It should looks like this:
 
 ```
+
 mongodb+srv://madmin:<password>@clustername.mongodb.net/<dbname>?retryWrites=true&w=majority
+
 ```
 
-3.  Add this URL to the /backend/credentials.js file
+3.  Add this URL to the /backend/.env file (refer to .env.example)
+
 4.  Perform these commands in the main directory:
 
 ```

backend/.env.example

@@ -0,0 +1,3 @@
+PORT=8080
+CONNECTION_URI=your_mongodb_connection_uri
+NODE_ENV="development"

backend/config/database.js

@@ -1,15 +1,9 @@
-const CONNECTION_URI = require('../credentials.js');
-
-module.exports = function (mongoose) {
-    mongoose.set('useFindAndModify', false);
-    mongoose
-        .connect(CONNECTION_URI, {
-            useNewUrlParser: true,
-            useUnifiedTopology: true,
-            dbName: 'test',
-        })
-        .then(() => {
-            console.log('MongoDB Connected…');
-        })
-        .catch(err => console.error(err));
+module.exports = async function (mongoose) {
+    try {
+        await mongoose.connect(process.env.CONNECTION_URI);
+        console.log('✅ MongoDB connected');
+    } catch (err) {
+        console.error('❌ MongoDB connection error:', err);
+        process.exit(1);
+    }
 };

backend/config/session.js

@@ -1,8 +1,8 @@
 const session = require('express-session');
-const CONNECTION_URI = require('../credentials.js');
 const MongoDBStore = require('connect-mongodb-session')(session);
+
 const store = new MongoDBStore({
-    uri: CONNECTION_URI,
+    uri: process.env.CONNECTION_URI,
     collection: 'sessions',
 });
 const sessionMiddleware = session({

backend/credentials.js

@@ -1,2 +0,0 @@
-// Write your own mongoDBatlas credentials here
-module.exports = '';

backend/handlers/playerHandler.js

@@ -1,5 +1,5 @@
 const { getRoom, updateRoom } = require('../services/roomService');
-const { colors } = require('../utils/constants');
+const { COLORS } = require('../utils/constants');
 
 module.exports = socket => {
     const req = socket.request;
@@ -44,7 +44,7 @@ module.exports = socket => {
             if (err) return socket.disconnect();
             req.session.roomId = room._id.toString();
             req.session.playerId = room.players[room.players.length - 1]._id.toString();
-            req.session.color = colors[room.players.length - 1];
+            req.session.color = COLORS[room.players.length - 1];
             req.session.save();
             socket.join(room._id.toString());
             socket.emit('player:data', JSON.stringify(req.session));

backend/models/room.js

@@ -1,6 +1,7 @@
 const mongoose = require('mongoose');
-const { colors } = require('../utils/constants');
+const { COLORS, MOVE_TIME } = require('../utils/constants');
 const { makeRandomMove } = require('../handlers/handlersFunctions');
+const timeoutManager = require('./timeoutManager.js');
 const PawnSchema = require('./pawn');
 const PlayerSchema = require('./player');
 
@@ -12,7 +13,6 @@ const RoomSchema = new mongoose.Schema({
     started: { type: Boolean, default: false },
     full: { type: Boolean, default: false },
     nextMoveTime: Number,
-    timeoutID: Number,
     rolledNumber: Number,
     players: [PlayerSchema],
     winner: { type: String, default: null },
@@ -24,10 +24,10 @@ const RoomSchema = new mongoose.Schema({
                 let pawn = {};
                 pawn.basePos = i;
                 pawn.position = i;
-                if (i < 4) pawn.color = colors[0];
-                else if (i < 8) pawn.color = colors[1];
-                else if (i < 12) pawn.color = colors[2];
-                else if (i < 16) pawn.color = colors[3];
+                if (i < 4) pawn.color = COLORS[0];
+                else if (i < 8) pawn.color = COLORS[1];
+                else if (i < 12) pawn.color = COLORS[2];
+                else if (i < 16) pawn.color = COLORS[3];
                 startPositions.push(pawn);
             }
             return startPositions;
@@ -54,10 +54,10 @@ RoomSchema.methods.changeMovingPlayer = function () {
     } else {
         this.players[playerIndex + 1].nowMoving = true;
     }
-    this.nextMoveTime = Date.now() + 15000;
+    this.nextMoveTime = Date.now() + MOVE_TIME;
     this.rolledNumber = null;
-    if (this.timeoutID) clearTimeout(this.timeoutID);
-    this.timeoutID = setTimeout(makeRandomMove, 15000, this._id.toString());
+    timeoutManager.clear(this._id.toString());
+    timeoutManager.set(makeRandomMove, MOVE_TIME, this._id.toString());
 };
 
 RoomSchema.methods.movePawn = function (pawn) {
@@ -83,14 +83,14 @@ RoomSchema.methods.canStartGame = function () {
 
 RoomSchema.methods.startGame = function () {
     this.started = true;
-    this.nextMoveTime = Date.now() + 15000;
+    this.nextMoveTime = Date.now() + MOVE_TIME;
     this.players.forEach(player => (player.ready = true));
     this.players[0].nowMoving = true;
-    this.timeoutID = setTimeout(makeRandomMove, 15000, this._id.toString());
+    timeoutManager.set(makeRandomMove, MOVE_TIME, this._id.toString());
 };
 
 RoomSchema.methods.endGame = function (winner) {
-    this.timeoutID = null;
+    timeoutManager.clear(this._id.toString());
     this.rolledNumber = null;
     this.nextMoveTime = null;
     this.players.map(player => (player.nowMoving = false));
@@ -131,7 +131,7 @@ RoomSchema.methods.addPlayer = function (name, id) {
         sessionID: id,
         name: name,
         ready: false,
-        color: colors[this.players.length],
+        color: COLORS[this.players.length],
     });
 };
 

backend/models/timeoutManager.js

@@ -0,0 +1,19 @@
+const timeoutManager = {
+    timeouts: new Map(),
+    add: function (roomId, timeoutId) {
+        this.timeouts.set(roomId, timeoutId);
+    },
+    get: function (roomId) {
+        return this.timeouts.get(roomId);
+    },
+    clear: function (roomId) {
+        clearTimeout(this.timeouts.get(roomId));
+        this.timeouts.delete(roomId);
+    },
+    set: function (timeoutFunction, time, roomId) {
+        const timeoutId = setTimeout(timeoutFunction, time, roomId);
+        this.add(roomId, timeoutId);
+    },
+};
+
+module.exports = timeoutManager;

backend/package-lock.json

@@ -10,9 +10,11 @@
         "connect-mongodb-session": "^3.1.1",
         "cookie-parser": "^1.4.5",
         "cors": "^2.8.5",
+        "dotenv": "^16.3.1",
         "express": "^4.17.1",
         "express-session": "^1.17.1",
         "mongoose": "^5.12.0",
+        "sinon": "^17.0.1",
         "socket.io": "^4.5.1"
       },
       "devDependencies": {
@@ -21,6 +23,45 @@
         "socket.io-client": "^4.7.2"
       }
     },
+    "node_modules/@sinonjs/commons": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-3.0.0.tgz",
+      "integrity": "sha512-jXBtWAF4vmdNmZgD5FoKsVLv3rPgDnLgPbU84LIJ3otV44vJlDRokVng5v8NFJdCf/da9legHcKaRuZs4L7faA==",
+      "dependencies": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "node_modules/@sinonjs/fake-timers": {
+      "version": "11.2.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-11.2.2.tgz",
+      "integrity": "sha512-G2piCSxQ7oWOxwGSAyFHfPIsyeJGXYtc6mFbnFA+kRXkiEnTl8c/8jul2S329iFBnDI9HGoeWWAZvuvOkZccgw==",
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.0"
+      }
+    },
+    "node_modules/@sinonjs/samsam": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-8.0.0.tgz",
+      "integrity": "sha512-Bp8KUVlLp8ibJZrnvq2foVhP0IVX2CIprMJPK0vqGqgrDa0OHVKeZyBykqskkrdxV6yKBPmGasO8LVjAKR3Gew==",
+      "dependencies": {
+        "@sinonjs/commons": "^2.0.0",
+        "lodash.get": "^4.4.2",
+        "type-detect": "^4.0.8"
+      }
+    },
+    "node_modules/@sinonjs/samsam/node_modules/@sinonjs/commons": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
+      "integrity": "sha512-uLa0j859mMrg2slwQYdO/AkrOfmH+X6LTVmNTS9CqexuE2IvVORIkSpJLqePAbEnKJ77aMmCwr1NUZ57120Xcg==",
+      "dependencies": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "node_modules/@sinonjs/text-encoding": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.2.tgz",
+      "integrity": "sha512-sXXKG+uL9IrKqViTtao2Ws6dy0znu9sOaP1di/jKGW1M6VssO8vlpXCQcpZ+jisQ1tTFAC5Jo/EOzFbggBagFQ=="
+    },
     "node_modules/@socket.io/component-emitter": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.0.tgz",
@@ -668,6 +709,17 @@
         "node": ">=0.3.1"
       }
     },
+    "node_modules/dotenv": {
+      "version": "16.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.3.1.tgz",
+      "integrity": "sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ==",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/motdotla/dotenv?sponsor=1"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -1081,7 +1133,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
       "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-      "dev": true,
       "engines": {
         "node": ">=8"
       }
@@ -1257,6 +1308,11 @@
         "js-yaml": "bin/js-yaml.js"
       }
     },
+    "node_modules/just-extend": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.2.1.tgz",
+      "integrity": "sha512-g3UB796vUFIY90VIv/WX3L2c8CS2MdWUww3CNrYmqza1Fg0DURc2K/O4YrnklBdQarSJ/y8JnJYDGc+1iumQjg=="
+    },
     "node_modules/kareem": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/kareem/-/kareem-2.3.2.tgz",
@@ -1293,6 +1349,11 @@
       "resolved": "https://registry.npmjs.org/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz",
       "integrity": "sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8="
     },
+    "node_modules/lodash.get": {
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
+      "integrity": "sha512-z+Uw/vLuy6gQe8cfaFWD7p0wVv8fJl3mbzXh33RS+0oW2wvUqiRXiQ69gLWSLpgB5/6sU+r6BlQR0MBILadqTQ=="
+    },
     "node_modules/lodash.set": {
       "version": "4.3.2",
       "resolved": "https://registry.npmjs.org/lodash.set/-/lodash.set-4.3.2.tgz",
@@ -1676,6 +1737,55 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/nise": {
+      "version": "5.1.5",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-5.1.5.tgz",
+      "integrity": "sha512-VJuPIfUFaXNRzETTQEEItTOP8Y171ijr+JLq42wHes3DiryR8vT+1TXQW/Rx8JNUhyYYWyIvjXTU6dOhJcs9Nw==",
+      "dependencies": {
+        "@sinonjs/commons": "^2.0.0",
+        "@sinonjs/fake-timers": "^10.0.2",
+        "@sinonjs/text-encoding": "^0.7.1",
+        "just-extend": "^4.0.2",
+        "path-to-regexp": "^1.7.0"
+      }
+    },
+    "node_modules/nise/node_modules/@sinonjs/commons": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
+      "integrity": "sha512-uLa0j859mMrg2slwQYdO/AkrOfmH+X6LTVmNTS9CqexuE2IvVORIkSpJLqePAbEnKJ77aMmCwr1NUZ57120Xcg==",
+      "dependencies": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "node_modules/nise/node_modules/@sinonjs/fake-timers": {
+      "version": "10.3.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-10.3.0.tgz",
+      "integrity": "sha512-V4BG07kuYSUkTCSBHG8G8TNhM+F19jXFWnQtzj+we8DrkpSBCee9Z3Ms8yiGer/dlmhe35/Xdgyo3/0rQKg7YA==",
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.0"
+      }
+    },
+    "node_modules/nise/node_modules/@sinonjs/fake-timers/node_modules/@sinonjs/commons": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-3.0.0.tgz",
+      "integrity": "sha512-jXBtWAF4vmdNmZgD5FoKsVLv3rPgDnLgPbU84LIJ3otV44vJlDRokVng5v8NFJdCf/da9legHcKaRuZs4L7faA==",
+      "dependencies": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "node_modules/nise/node_modules/isarray": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+      "integrity": "sha512-D2S+3GLxWH+uhrNEcoh/fnmYeP8E8/zHl644d/jdA0g2uyXvy3sb0qxotE+ne0LtccHknQzWwZEzhak7oJ0COQ=="
+    },
+    "node_modules/nise/node_modules/path-to-regexp": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
+      "integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
+      "dependencies": {
+        "isarray": "0.0.1"
+      }
+    },
     "node_modules/normalize-path": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
@@ -2039,6 +2149,42 @@
       "resolved": "https://registry.npmjs.org/sift/-/sift-13.5.2.tgz",
       "integrity": "sha512-+gxdEOMA2J+AI+fVsCqeNn7Tgx3M9ZN9jdi95939l1IJ8cZsqS8sqpJyOkic2SJk+1+98Uwryt/gL6XDaV+UZA=="
     },
+    "node_modules/sinon": {
+      "version": "17.0.1",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-17.0.1.tgz",
+      "integrity": "sha512-wmwE19Lie0MLT+ZYNpDymasPHUKTaZHUH/pKEubRXIzySv9Atnlw+BUMGCzWgV7b7wO+Hw6f1TEOr0IUnmU8/g==",
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.0",
+        "@sinonjs/fake-timers": "^11.2.2",
+        "@sinonjs/samsam": "^8.0.0",
+        "diff": "^5.1.0",
+        "nise": "^5.1.5",
+        "supports-color": "^7.2.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/sinon"
+      }
+    },
+    "node_modules/sinon/node_modules/diff": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-5.1.0.tgz",
+      "integrity": "sha512-D+mk+qE8VC/PAUrlAU34N+VfXev0ghe5ywmpqrawphmVZc1bEfn56uo9qpyGp1p4xpzOHkSW4ztBd6L7Xx4ACw==",
+      "engines": {
+        "node": ">=0.3.1"
+      }
+    },
+    "node_modules/sinon/node_modules/supports-color": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/sliced": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/sliced/-/sliced-1.0.1.tgz",
@@ -2306,7 +2452,6 @@
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
       "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
-      "dev": true,
       "engines": {
         "node": ">=4"
       }
@@ -2506,6 +2651,47 @@
     }
   },
   "dependencies": {
+    "@sinonjs/commons": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-3.0.0.tgz",
+      "integrity": "sha512-jXBtWAF4vmdNmZgD5FoKsVLv3rPgDnLgPbU84LIJ3otV44vJlDRokVng5v8NFJdCf/da9legHcKaRuZs4L7faA==",
+      "requires": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "@sinonjs/fake-timers": {
+      "version": "11.2.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-11.2.2.tgz",
+      "integrity": "sha512-G2piCSxQ7oWOxwGSAyFHfPIsyeJGXYtc6mFbnFA+kRXkiEnTl8c/8jul2S329iFBnDI9HGoeWWAZvuvOkZccgw==",
+      "requires": {
+        "@sinonjs/commons": "^3.0.0"
+      }
+    },
+    "@sinonjs/samsam": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-8.0.0.tgz",
+      "integrity": "sha512-Bp8KUVlLp8ibJZrnvq2foVhP0IVX2CIprMJPK0vqGqgrDa0OHVKeZyBykqskkrdxV6yKBPmGasO8LVjAKR3Gew==",
+      "requires": {
+        "@sinonjs/commons": "^2.0.0",
+        "lodash.get": "^4.4.2",
+        "type-detect": "^4.0.8"
+      },
+      "dependencies": {
+        "@sinonjs/commons": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
+          "integrity": "sha512-uLa0j859mMrg2slwQYdO/AkrOfmH+X6LTVmNTS9CqexuE2IvVORIkSpJLqePAbEnKJ77aMmCwr1NUZ57120Xcg==",
+          "requires": {
+            "type-detect": "4.0.8"
+          }
+        }
+      }
+    },
+    "@sinonjs/text-encoding": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.2.tgz",
+      "integrity": "sha512-sXXKG+uL9IrKqViTtao2Ws6dy0znu9sOaP1di/jKGW1M6VssO8vlpXCQcpZ+jisQ1tTFAC5Jo/EOzFbggBagFQ=="
+    },
     "@socket.io/component-emitter": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.0.tgz",
@@ -2983,6 +3169,11 @@
       "integrity": "sha512-/VTCrvm5Z0JGty/BWHljh+BAiw3IK+2j87NGMu8Nwc/f48WoDAC395uomO9ZD117ZOBaHmkX1oyLvkVM/aIT3w==",
       "dev": true
     },
+    "dotenv": {
+      "version": "16.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.3.1.tgz",
+      "integrity": "sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ=="
+    },
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -3291,8 +3482,7 @@
     "has-flag": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-      "dev": true
+      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ=="
     },
     "he": {
       "version": "1.2.0",
@@ -3412,6 +3602,11 @@
         "argparse": "^2.0.1"
       }
     },
+    "just-extend": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.2.1.tgz",
+      "integrity": "sha512-g3UB796vUFIY90VIv/WX3L2c8CS2MdWUww3CNrYmqza1Fg0DURc2K/O4YrnklBdQarSJ/y8JnJYDGc+1iumQjg=="
+    },
     "kareem": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/kareem/-/kareem-2.3.2.tgz",
@@ -3439,6 +3634,11 @@
       "resolved": "https://registry.npmjs.org/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz",
       "integrity": "sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8="
     },
+    "lodash.get": {
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
+      "integrity": "sha512-z+Uw/vLuy6gQe8cfaFWD7p0wVv8fJl3mbzXh33RS+0oW2wvUqiRXiQ69gLWSLpgB5/6sU+r6BlQR0MBILadqTQ=="
+    },
     "lodash.set": {
       "version": "4.3.2",
       "resolved": "https://registry.npmjs.org/lodash.set/-/lodash.set-4.3.2.tgz",
@@ -3711,6 +3911,59 @@
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
       "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
     },
+    "nise": {
+      "version": "5.1.5",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-5.1.5.tgz",
+      "integrity": "sha512-VJuPIfUFaXNRzETTQEEItTOP8Y171ijr+JLq42wHes3DiryR8vT+1TXQW/Rx8JNUhyYYWyIvjXTU6dOhJcs9Nw==",
+      "requires": {
+        "@sinonjs/commons": "^2.0.0",
+        "@sinonjs/fake-timers": "^10.0.2",
+        "@sinonjs/text-encoding": "^0.7.1",
+        "just-extend": "^4.0.2",
+        "path-to-regexp": "^1.7.0"
+      },
+      "dependencies": {
+        "@sinonjs/commons": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
+          "integrity": "sha512-uLa0j859mMrg2slwQYdO/AkrOfmH+X6LTVmNTS9CqexuE2IvVORIkSpJLqePAbEnKJ77aMmCwr1NUZ57120Xcg==",
+          "requires": {
+            "type-detect": "4.0.8"
+          }
+        },
+        "@sinonjs/fake-timers": {
+          "version": "10.3.0",
+          "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-10.3.0.tgz",
+          "integrity": "sha512-V4BG07kuYSUkTCSBHG8G8TNhM+F19jXFWnQtzj+we8DrkpSBCee9Z3Ms8yiGer/dlmhe35/Xdgyo3/0rQKg7YA==",
+          "requires": {
+            "@sinonjs/commons": "^3.0.0"
+          },
+          "dependencies": {
+            "@sinonjs/commons": {
+              "version": "3.0.0",
+              "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-3.0.0.tgz",
+              "integrity": "sha512-jXBtWAF4vmdNmZgD5FoKsVLv3rPgDnLgPbU84LIJ3otV44vJlDRokVng5v8NFJdCf/da9legHcKaRuZs4L7faA==",
+              "requires": {
+                "type-detect": "4.0.8"
+              }
+            }
+          }
+        },
+        "isarray": {
+          "version": "0.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+          "integrity": "sha512-D2S+3GLxWH+uhrNEcoh/fnmYeP8E8/zHl644d/jdA0g2uyXvy3sb0qxotE+ne0LtccHknQzWwZEzhak7oJ0COQ=="
+        },
+        "path-to-regexp": {
+          "version": "1.8.0",
+          "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
+          "integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
+          "requires": {
+            "isarray": "0.0.1"
+          }
+        }
+      }
+    },
     "normalize-path": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
@@ -3989,6 +4242,34 @@
       "resolved": "https://registry.npmjs.org/sift/-/sift-13.5.2.tgz",
       "integrity": "sha512-+gxdEOMA2J+AI+fVsCqeNn7Tgx3M9ZN9jdi95939l1IJ8cZsqS8sqpJyOkic2SJk+1+98Uwryt/gL6XDaV+UZA=="
     },
+    "sinon": {
+      "version": "17.0.1",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-17.0.1.tgz",
+      "integrity": "sha512-wmwE19Lie0MLT+ZYNpDymasPHUKTaZHUH/pKEubRXIzySv9Atnlw+BUMGCzWgV7b7wO+Hw6f1TEOr0IUnmU8/g==",
+      "requires": {
+        "@sinonjs/commons": "^3.0.0",
+        "@sinonjs/fake-timers": "^11.2.2",
+        "@sinonjs/samsam": "^8.0.0",
+        "diff": "^5.1.0",
+        "nise": "^5.1.5",
+        "supports-color": "^7.2.0"
+      },
+      "dependencies": {
+        "diff": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/diff/-/diff-5.1.0.tgz",
+          "integrity": "sha512-D+mk+qE8VC/PAUrlAU34N+VfXev0ghe5ywmpqrawphmVZc1bEfn56uo9qpyGp1p4xpzOHkSW4ztBd6L7Xx4ACw=="
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        }
+      }
+    },
     "sliced": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/sliced/-/sliced-1.0.1.tgz",
@@ -4187,8 +4468,7 @@
     "type-detect": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
-      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
-      "dev": true
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g=="
     },
     "type-is": {
       "version": "1.6.18",

backend/package.json

@@ -5,9 +5,11 @@
     "connect-mongodb-session": "^3.1.1",
     "cookie-parser": "^1.4.5",
     "cors": "^2.8.5",
+    "dotenv": "^16.3.1",
     "express": "^4.17.1",
     "express-session": "^1.17.1",
     "mongoose": "^5.12.0",
+    "sinon": "^17.0.1",
     "socket.io": "^4.5.1"
   },
   "devDependencies": {

backend/server.js

@@ -1,38 +1,49 @@
 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 = 8080;
+const PORT = process.env.PORT || 5000;
 
 const app = express();
 
 app.use(cookieParser());
-app.use(
-    express.urlencoded({
-        extended: true,
-    })
-);
+app.use(express.urlencoded({ extended: true }));
 app.use(express.json());
 app.set('trust proxy', 1);
+
+/* ---------- CORS ---------- */
 app.use(
     cors({
-        origin: 'http://localhost:3000',
+        origin:
+            process.env.NODE_ENV === 'production'
+                ? true               // same origin (Docker / prod)
+                : 'http://localhost:3000',
         credentials: true,
     })
 );
+
 app.use(sessionMiddleware);
 
-const server = app.listen(PORT);
+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') {
-    app.use(express.static('/app/build'));
-    app.get('/', (req, res) => {
-        res.sendFile('/app/build/index.html');
+    const buildPath = path.resolve(__dirname, 'build');
+
+    app.use(express.static(buildPath));
+
+    app.get('*', (req, res) => {
+        res.sendFile(path.join(buildPath, 'index.html'));
     });
 }
 

backend/tests/models/timeoutManager.test.js

@@ -0,0 +1,50 @@
+const chai = require('chai');
+const sinon = require('sinon');
+const timeoutManager = require('../../models/timeoutManager');
+
+const { expect } = chai;
+
+describe('timeoutManager', () => {
+    beforeEach(() => {
+        timeoutManager.timeouts.clear();
+        sinon.useFakeTimers({ shouldClearNativeTimers: true });
+    });
+
+    afterEach(() => {
+        sinon.restore();
+    });
+
+    it('should add a timeout to the map', () => {
+        timeoutManager.add('room1', 1);
+        expect(timeoutManager.timeouts.size).to.equal(1);
+    });
+
+    it('should get a timeout from the map', () => {
+        timeoutManager.add('room1', 1);
+        const timeoutId = timeoutManager.get('room1');
+        expect(timeoutId).to.equal(1);
+    });
+
+    it('should clear a timeout from the map', () => {
+        timeoutManager.add('room1', 1);
+        timeoutManager.clear('room1');
+        expect(timeoutManager.timeouts.size).to.equal(0);
+    });
+
+    it('should set a new timeout', () => {
+        const timeoutFunction = sinon.spy();
+        timeoutManager.set(timeoutFunction, 100, 'room1');
+        expect(timeoutManager.timeouts.size).to.equal(1);
+        sinon.clock.tick(101);
+        sinon.assert.calledOnce(timeoutFunction);
+    });
+
+    it('should not call the timeout function if cleared', () => {
+        const timeoutFunction = sinon.spy();
+        timeoutManager.set(timeoutFunction, 100, 'room1');
+        timeoutManager.clear('room1');
+        sinon.clock.tick(101);
+        sinon.assert.notCalled(timeoutFunction);
+        expect(timeoutManager.timeouts.size).to.equal(0);
+    });
+});

backend/utils/constants.js

@@ -1,2 +1,3 @@
-const colors = ["red", "blue", "green", "yellow"];
-module.exports = { colors };
+const COLORS = ['red', 'blue', 'green', 'yellow'];
+const MOVE_TIME = 15000;
+module.exports = { COLORS, MOVE_TIME };

docker-compose.yml

@@ -0,0 +1,42 @@
+version: "3.9"
+
+services:
+  mongo:
+    image: mongo:7.0
+    container_name: ludo-mongo
+    restart: unless-stopped
+    networks:
+      - ludo-net
+    volumes:
+      - ludo-mongo-data:/data/db
+      - ./mongo-keyfile:/etc/mongo-keyfile:ro
+      # - ./mongo-init.js:/docker-entrypoint-initdb.d/mongo-init.js:ro
+    command:
+      - bash
+      - -c
+      - |
+        cp /etc/mongo-keyfile /data/db/keyfile &&
+        chown mongodb:mongodb /data/db/keyfile &&
+        chmod 400 /data/db/keyfile &&
+        exec mongod --replSet rs0 --keyFile /data/db/keyfile --bind_ip_all
+    ports:
+      - "27017:27017"
+
+  app:
+    build: .
+    container_name: mern-ludo-app
+    restart: unless-stopped
+    networks:
+      - ludo-net
+    env_file:
+      - .env
+    ports:
+      - "18081:${PORT}"   # Host:Container mapping
+    depends_on:
+      - mongo
+
+networks:
+  ludo-net:
+
+volumes:
+  ludo-mongo-data:

package.json

@@ -23,9 +23,7 @@
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build",
-    "heroku-postbuild": "cd backend && npm install && cd .. && npm install && npm run build",
-    "test": "react-scripts test",
-    "eject": "react-scripts eject"
+    "test": "react-scripts test"
   },
   "eslintConfig": {
     "extends": [
@@ -48,11 +46,10 @@
       "last 1 safari version"
     ]
   },
-  "proxy": "http://localhost:5000",
   "devDependencies": {
     "@testing-library/jest-dom": "^6.1.5",
     "@testing-library/react": "^14.1.2",
     "cypress": "^13.6.1",
-    "@babel/plugin-proposal-private-property-in-object": "^7.16.7"
+    "@babel/plugin-transform-private-property-in-object": "^7.16.7"
   }
 }

src/App.js

@@ -13,7 +13,7 @@ function App() {
     const [playerSocket, setPlayerSocket] = useState();
     const [redirect, setRedirect] = useState();
     useEffect(() => {
-        const socket = io('http://localhost:8080', { withCredentials: true });
+        const socket = io(`${window.location.protocol}//${window.location.host}`, { withCredentials: true });
         socket.on('player:data', data => {
             data = JSON.parse(data);
             setPlayerData(data);
@@ -72,5 +72,3 @@ function App() {
         </SocketContext.Provider>
     );
 }
-
-export default App;

src/components/LoginPage/JoinServer/JoinServer.module.css

@@ -1,7 +1,7 @@
 .serversTableContainer {
     display: flex;
-    height: 500px;
     overflow: scroll;
+    height: 500px;
     width: 100%;
 }
 .refresh {

src/components/LoginPage/JoinServer/ServersTable/ServersTable.module.css

@@ -1,6 +1,8 @@
 .roomName {
     max-width: 150px;
     overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
     text-align: left !important;
 }
 .rooms > thead > tr :nth-child(2) {
@@ -30,6 +32,7 @@
 .rooms {
     border-collapse: collapse;
     width: 100%;
+    height: fit-content;
 }
 
 .lastColumn {

troubleshooting.md

@@ -0,0 +1,562 @@
+You’ve identified the Mongo volume that’s causing the auth issue.
+
+What this means
+local     mern-ludo_mongo_data
+
+
+This volume still exists, so Mongo is:
+
+reusing old, broken initialization
+
+not recreating the admin user
+
+continuing to fail authentication
+
+We now need to delete this volume so Mongo can initialize cleanly.
+
+✅ Do this EXACTLY (safe + correct)
+🔴 Step 1: Stop containers
+docker compose down
+
+🔴 Step 2: Remove the Mongo volume
+docker volume rm mern-ludo_mongo_data
+
+
+If Docker complains it’s in use, run:
+
+docker compose down -v
+
+
+(that removes volumes automatically)
+
+✅ Step 3: Confirm it’s gone
+docker volume ls | grep ludo
+
+
+👉 This should return nothing.
+
+✅ Step 4: Start ONLY Mongo first (important)
+docker compose up -d mongo
+
+
+Wait 10–15 seconds.
+
+Check logs:
+
+docker logs ludo-mongo --tail=30
+
+
+You should NOT see:
+
+bad file
+
+Unable to acquire security key
+
+crash/restart loops
+
+✅ Step 5: Test authentication (this MUST work)
+docker exec -it ludo-mongo mongosh -u admin -p adminpassword --authenticationDatabase admin
+
+
+If you get a > prompt → 🎉 auth is fixed
+
+✅ Step 6: Initialize replica set (ONCE)
+
+Inside mongosh:
+
+rs.initiate({
+  _id: "rs0",
+  members: [{ _id: 0, host: "mongo:27017" }]
+})
+
+
+Then:
+
+rs.status().members[0].stateStr
+
+
+Must be:
+
+"PRIMARY"
+
+✅ Step 7: Start the app
+docker compose up -d app
+
+
+(or just)
+
+docker compose up -d
+
+
+Then:
+
+docker restart mern-ludo-app
+
+🎯 Expected final result
+Mongo
+
+Auth works
+
+Replica set PRIMARY
+
+No errors in logs
+
+Backend
+MongoDB connected
+Server listening on port 18081
+
+Browser
+
+App loads
+
+No crashes
+
+No noscript / auth errors
+
+🧾 One-line status
+
+The Mongo volume still existed; deleting it allows Mongo to create the admin user correctly.
+
+Once Step 5 succeeds, you are fully unblocked.
+Run Step 2 now and tell me when mongosh login works 👍
+
+
+You’re very close, and the remaining issue is not random.
+
+What the two messages really mean (important)
+1️⃣ These messages are NOT the main problem ❌
+Collection [local.oplog.rs] not found
+ReadConcernMajorityNotAvailableYet
+
+
+These appear when:
+
+replica set is not initiated yet
+
+PRIMARY is not elected yet
+
+They are expected noise before rs.initiate() succeeds.
+
+👉 We’ll fix them automatically once the replica set is initialized.
+
+2️⃣ THIS is the real blocker 🔴
+MongoServerError: Authentication failed
+
+
+This means 100%:
+
+🔐 MongoDB is running with authentication enabled,
+❌ but the admin user does not exist.
+
+This is why:
+
+backend can’t connect
+
+mongosh -u admin fails
+
+oplog can’t be created
+
+replica set can’t complete
+
+Why the admin user does NOT exist (root cause)
+
+Mongo creates the root user only once, on first successful startup, when:
+
+/data/db is empty
+
+Mongo reaches a stable running state
+
+Earlier, Mongo:
+
+crashed due to keyFile issues
+
+restarted several times
+
+skipped user creation
+
+but auth stayed enabled
+
+Result:
+
+Mongo requires auth, but no users exist → permanent auth failure
+
+This is a classic Mongo + replica set + keyFile edge case.
+
+✅ The ONLY correct fix (clean & guaranteed)
+
+We must let Mongo start once without auth, create the user manually, then re-enable auth.
+
+This is the official MongoDB recovery method.
+
+🔥 DO THIS STEP-BY-STEP (no skipping)
+STEP 1️⃣ Stop everything
+docker compose down
+
+STEP 2️⃣ Temporarily DISABLE auth (Mongo only)
+
+Edit docker-compose.yml mongo service:
+
+🔴 TEMPORARY CHANGE
+
+Comment out these lines for now:
+
+# environment:
+#   MONGO_INITDB_ROOT_USERNAME: admin
+#   MONGO_INITDB_ROOT_PASSWORD: adminpassword
+
+
+And change the command to NO keyFile, NO auth:
+
+command:
+  - mongod
+  - --replSet
+  - rs0
+  - --bind_ip_all
+
+
+(Leave volumes as-is.)
+
+STEP 3️⃣ Start Mongo only
+docker compose up -d mongo
+
+
+Wait ~10 seconds.
+
+STEP 4️⃣ Connect WITHOUT auth (this must work)
+docker exec -it ludo-mongo mongosh
+
+
+If you get a prompt → good.
+
+STEP 5️⃣ Create admin user MANUALLY
+
+Inside mongosh:
+
+use admin
+db.createUser({
+  user: "admin",
+  pwd: "adminpassword",
+  roles: [ { role: "root", db: "admin" } ]
+})
+
+
+You must see:
+
+{ ok: 1 }
+
+STEP 6️⃣ Initialize replica set (NOW it will work)
+rs.initiate({
+  _id: "rs0",
+  members: [{ _id: 0, host: "mongo:27017" }]
+})
+
+
+Wait ~5–10 seconds, then:
+
+rs.status().members[0].stateStr
+
+
+Must be:
+
+"PRIMARY"
+
+
+Exit mongosh:
+
+exit
+
+STEP 7️⃣ Re-enable auth + keyFile (FINAL config)
+
+Restore your correct mongo config:
+
+environment:
+  MONGO_INITDB_ROOT_USERNAME: admin
+  MONGO_INITDB_ROOT_PASSWORD: adminpassword
+
+command:
+  - bash
+  - -c
+  - |
+    cp /tmp/mongo-keyfile /data/db/keyfile &&
+    chown mongodb:mongodb /data/db/keyfile &&
+    chmod 400 /data/db/keyfile &&
+    exec mongod --replSet rs0 --keyFile /data/db/keyfile --bind_ip_all
+
+STEP 8️⃣ Restart clean
+docker compose down
+docker compose up -d
+
+STEP 9️⃣ Test auth (this WILL work now)
+docker exec -it ludo-mongo mongosh -u admin -p adminpassword --authenticationDatabase admin
+
+STEP 🔟 Start / restart backend
+docker restart mern-ludo-app
+
+✅ What you should see now
+Mongo
+
+Auth works
+
+PRIMARY elected
+
+local.oplog.rs exists
+
+No auth errors
+
+Backend
+MongoDB connected
+Server listening on port 18081
+
+App
+
+Loads normally
+
+No crashes
+
+Change Streams work
+
+🧠 One-line final diagnosis
+
+MongoDB authentication was enabled before any user existed; manual user creation was required to recover.
+
+This is the last MongoDB trap — once done, you will not hit this again.
+
+MongoServerError[NotWritablePrimary]: not primary
+
+Perfect — that error is expected at this exact moment, and it tells us precisely what to do next 👍
+You didn’t break anything.
+
+What this error means (very clear)
+MongoServerError[NotWritablePrimary]: not primary
+
+
+This means:
+
+MongoDB is running as a replica set member,
+but no PRIMARY has been elected yet.
+
+Until a node becomes PRIMARY:
+
+❌ you cannot create users
+
+❌ you cannot write data
+
+❌ db.createUser() will fail
+
+So this is not an auth issue anymore.
+
+✅ Correct order (important)
+
+When running Mongo as a replica set, the order must be:
+
+Start Mongo
+
+Initiate replica set
+
+Wait until PRIMARY
+
+Create users
+
+Enable auth (already planned)
+
+Right now, you’re at step 2½.
+
+✅ DO THIS NOW (inside mongosh)
+
+You are already connected with:
+
+docker exec -it ludo-mongo mongosh
+
+
+At the > prompt, run THIS FIRST 👇
+
+🔥 Step 1: Initiate replica set
+rs.initiate({
+  _id: "rs0",
+  members: [
+    { _id: 0, host: "mongo:27017" }
+  ]
+})
+
+Expected output
+{ ok: 1 }
+
+🔥 Step 2: Wait a few seconds, then verify PRIMARY
+rs.status().members[0].stateStr
+
+
+You must see:
+
+"PRIMARY"
+
+
+If it still says STARTUP or SECONDARY, wait 5 seconds and run again.
+
+✅ ONLY AFTER PRIMARY → create admin user
+
+Now run:
+
+use admin
+
+db.createUser({
+  user: "admin",
+  pwd: "adminpassword",
+  roles: [ { role: "root", db: "admin" } ]
+})
+
+Expected:
+{ ok: 1 }
+
+🧠 Why this happened (important lesson)
+
+You started Mongo with:
+
+mongod --replSet rs0
+
+
+That automatically puts Mongo into replica set mode, but:
+
+replica set is inactive
+
+no PRIMARY exists yet
+
+Mongo rejects all writes until a PRIMARY is elected.
+
+This is correct MongoDB behavior.
+
+✅ After user creation (next steps preview)
+
+Once { ok: 1 } appears:
+
+Exit mongosh:
+
+exit
+
+
+Re-enable auth + keyFile in docker-compose (as discussed)
+
+Restart containers
+
+Verify:
+
+docker exec -it ludo-mongo mongosh -u admin -p adminpassword --authenticationDatabase admin
+
+🎯 One-line status update
+
+MongoDB is in replica-set mode but not PRIMARY yet — initialize the replica set first.
+
+👉 Action for you now
+
+Run rs.initiate(...), wait for PRIMARY, then retry db.createUser.
+
+Tell me what rs.status().members[0].stateStr prints, and we’ll finish this cleanly 💪
+
+
+```yaml
+version: "3.9"
+
+services:
+  mongo:
+    image: mongo:7.0
+    container_name: ludo-mongo
+    restart: unless-stopped
+    networks:
+      - ludo-net
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: admin
+      MONGO_INITDB_ROOT_PASSWORD: adminpassword
+    volumes:
+      - ludo-mongo-data:/data/db
+      - ./mongo-keyfile:/tmp/mongo-keyfile:ro
+    command:
+      - bash
+      - -c
+      - |
+        cp /tmp/mongo-keyfile /data/db/keyfile &&
+        chown mongodb:mongodb /data/db/keyfile &&
+        chmod 400 /data/db/keyfile &&
+        exec mongod --replSet rs0 --keyFile /data/db/keyfile --bind_ip_all
+    ports:
+      - "27017:27017"
+
+  app:
+    build: .
+    container_name: mern-ludo-app
+    restart: unless-stopped
+    networks:
+      - ludo-net
+    env_file:
+      - .env
+    ports:
+      - "18081:8080"
+    depends_on:
+      - mongo
+
+networks:
+  ludo-net:
+
+volumes:
+  ludo-mongo-data:
+```
+
+Step 2️⃣ Recreate keyfile cleanly (one last time)
+cd ~/mern-ludo
+rm -f mongo-keyfile
+openssl rand -base64 756 > mongo-keyfile
+chmod 400 mongo-keyfile
+
+
+Verify:
+
+wc -c mongo-keyfile
+
+Step 3️⃣ Full reset (MANDATORY)
+docker compose down -v
+docker compose up -d --build
+
+
+Wait ~10 seconds.
+
+Step 4️⃣ Confirm Mongo is RUNNING (not restarting)
+docker ps
+
+
+You should NOT see Restarting.
+
+Step 5️⃣ Now exec WILL work
+docker exec -it ludo-mongo mongosh -u admin -p adminpassword --authenticationDatabase admin
+
+
+If you get a shell → 🎉 Mongo is fixed
+
+Step 6️⃣ Initialize replica set (ONCE)
+rs.initiate({
+  _id: "rs0",
+  members: [{ _id: 0, host: "mongo:27017" }]
+})
+
+
+Check:
+
+rs.status().members[0].stateStr
+// PRIMARY
+
+Step 7️⃣ Restart app
+docker restart mern-ludo-app
+
+
+Your Change Stream error will now be gone permanently.
+
+🧠 Why ALL previous attempts failed
+Attempt	Why it failed
+Bind mount keyfile	Ownership mismatch
+chmod 400 only	Not enough
+DietPi ARM	Stricter FS behavior
+Mongo 7	Enforces keyfile rules hard
+
+This copy + chown pattern solves all of them.
+
+✅ One-line final diagnosis
+
+MongoDB rejected the keyfile because bind-mounted files keep host ownership, and Mongo runs as a non-root user.
+