Complete Node.js container implementation with multi-version support

- Add Dockerfile with AlmaLinux 9 base, Nginx reverse proxy, and PM2
- Support Node.js versions 18, 20, 22 with automated installation
- Implement memory-optimized configuration (256MB minimum, 512MB recommended)
- Add Memcached session storage for development environments
- Create comprehensive documentation (README, USER-GUIDE, MEMORY-GUIDE, CLAUDE.md)
- Include example applications (simple website and REST API)
- Add Gitea CI/CD pipeline for automated multi-version builds
- Provide local development script with helper utilities
- Implement health monitoring, log rotation, and backup systems

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

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

configs/index.js

@@ -0,0 +1,101 @@
+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'}`);
+});