Implement auto-generation of ecosystem.config.js and improve container setup

- Add automatic ecosystem.config.js generation from package.json
- Create app directory automatically if missing
- Copy simple-website example when app directory is empty
- Remove redundant default app files from configs/
- Add HAProxy support with proper real IP forwarding
- Configure nginx to trust proxy headers from private networks
- Simplify entrypoint logic - always use /home/$user/app

This makes the container more user-friendly by eliminating the need for
manual PM2 configuration and ensuring the server always has a working app.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

configs/ecosystem.config.js

@@ -1,31 +0,0 @@
-module.exports = {
-  apps: [{
-    name: 'node-app',
-    script: 'index.js',
-    instances: 1,
-    autorestart: true,
-    watch: false,
-    max_memory_restart: '256M', // Restart if app uses more than 256MB
-    kill_timeout: 3000,
-    wait_ready: true,
-    listen_timeout: 3000,
-    env: {
-      NODE_ENV: 'development',
-      PORT: 3000,
-      NODE_OPTIONS: '--max-old-space-size=200' // Limit V8 heap to 200MB
-    },
-    env_production: {
-      NODE_ENV: 'production',
-      PORT: 3000,
-      NODE_OPTIONS: '--max-old-space-size=200'
-    },
-    log_file: '/home/myuser/logs/nodejs/app.log',
-    error_file: '/home/myuser/logs/nodejs/error.log',
-    out_file: '/home/myuser/logs/nodejs/out.log',
-    log_date_format: 'YYYY-MM-DD HH:mm:ss Z',
-    log_type: 'json',
-    merge_logs: true,
-    max_restarts: 5,
-    min_uptime: '10s'
-  }]
-};

configs/index.js

@@ -1,101 +0,0 @@
-const express = require('express');
-const session = require('express-session');
-const app = express();
-const port = process.env.PORT || 3000;
-
-// Middleware
-app.use(express.json());
-app.use(express.static('public'));
-
-// Session configuration with Memcache (only in DEV mode when memcached is available)
-if (process.env.NODE_ENV !== 'production') {
-  try {
-    const MemcachedStore = require('connect-memcached')(session);
-    app.use(session({
-      store: new MemcachedStore({
-        hosts: ['localhost:11211']
-      }),
-      secret: process.env.SESSION_SECRET || 'your-secret-key-change-in-production',
-      resave: false,
-      saveUninitialized: false,
-      cookie: { 
-        secure: false, // Allow HTTP in development
-        maxAge: 24 * 60 * 60 * 1000 // 24 hours
-      }
-    }));
-    console.log('Memcached session store initialized');
-  } catch (err) {
-    console.log('Memcached not available, using memory store');
-    app.use(session({
-      secret: process.env.SESSION_SECRET || 'your-secret-key-change-in-production',
-      resave: false,
-      saveUninitialized: false,
-      cookie: { 
-        secure: false,
-        maxAge: 24 * 60 * 60 * 1000
-      }
-    }));
-  }
-} else {
-  // Production session configuration (expects external session store)
-  app.use(session({
-    secret: process.env.SESSION_SECRET || 'your-secret-key-change-in-production',
-    resave: false,
-    saveUninitialized: false,
-    cookie: { 
-      secure: true, // HTTPS only in production
-      maxAge: 24 * 60 * 60 * 1000
-    }
-  }));
-}
-
-// Health check endpoint
-app.get('/ping', (req, res) => {
-  res.json({ 
-    status: 'ok', 
-    timestamp: new Date().toISOString(),
-    uptime: process.uptime(),
-    version: process.env.npm_package_version || '1.0.0'
-  });
-});
-
-// Default route
-app.get('/', (req, res) => {
-  res.json({
-    message: 'Cloud Node Container is running!',
-    nodeVersion: process.version,
-    environment: process.env.NODE_ENV || 'development',
-    timestamp: new Date().toISOString()
-  });
-});
-
-// Info endpoint
-app.get('/info', (req, res) => {
-  res.json({
-    nodeVersion: process.version,
-    platform: process.platform,
-    arch: process.arch,
-    uptime: process.uptime(),
-    memory: process.memoryUsage(),
-    env: process.env.NODE_ENV || 'development'
-  });
-});
-
-// Session demo endpoint
-app.get('/session', (req, res) => {
-  if (!req.session.visits) {
-    req.session.visits = 0;
-  }
-  req.session.visits++;
-  
-  res.json({
-    sessionId: req.sessionID,
-    visits: req.session.visits,
-    message: 'Session is working with ' + (process.env.NODE_ENV !== 'production' ? 'Memcached' : 'default store')
-  });
-});
-
-app.listen(port, () => {
-  console.log(`Server running on port ${port}`);
-  console.log(`Environment: ${process.env.NODE_ENV || 'development'}`);
-});

configs/nginx.conf

@@ -17,6 +17,14 @@ http {
     client_max_body_size 8m;
     large_client_header_buffers 2 1k;
     
+    # Real IP configuration for HAProxy
+    set_real_ip_from 10.0.0.0/8;     # Private network range
+    set_real_ip_from 172.16.0.0/12;  # Private network range
+    set_real_ip_from 192.168.0.0/16; # Private network range
+    set_real_ip_from 127.0.0.1;      # Localhost
+    real_ip_header X-Forwarded-For;
+    real_ip_recursive on;
+    
     log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                       '$status $body_bytes_sent "$http_referer" '
                       '"$http_user_agent" "$http_x_forwarded_for"';

configs/package.json

@@ -1,27 +0,0 @@
-{
-  "name": "cnoc-default-app",
-  "version": "1.0.0",
-  "description": "Default Node.js application for Cloud Node Container",
-  "main": "index.js",
-  "scripts": {
-    "start": "node index.js",
-    "dev": "nodemon index.js",
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "dependencies": {
-    "express": "^4.18.2",
-    "express-session": "^1.17.3",
-    "connect-memcached": "^1.0.0"
-  },
-  "devDependencies": {
-    "nodemon": "^3.0.1"
-  },
-  "keywords": [
-    "nodejs",
-    "express",
-    "container",
-    "docker"
-  ],
-  "author": "",
-  "license": "MIT"
-}