Add System Monitoring Dashboard with Harbor CI/CD integration

src/routes/health.js

@@ -0,0 +1,93 @@
+const express = require('express');
+const os = require('os');
+
+const router = express.Router();
+
+// Basic health check
+router.get('/', (req, res) => {
+  res.json({
+    status: 'healthy',
+    timestamp: new Date().toISOString(),
+    uptime: process.uptime(),
+    service: 'harbor-ci-cd-demo'
+  });
+});
+
+// Detailed health check
+router.get('/detailed', (req, res) => {
+  const memoryUsage = process.memoryUsage();
+  const totalMem = os.totalmem();
+  const freeMem = os.freemem();
+  
+  // Check memory usage (warn if over 80%)
+  const memoryPercentage = ((totalMem - freeMem) / totalMem) * 100;
+  const memoryStatus = memoryPercentage > 80 ? 'warning' : 'healthy';
+  
+  // Check process memory (warn if heap over 100MB)
+  const heapUsedMB = memoryUsage.heapUsed / 1024 / 1024;
+  const processMemoryStatus = heapUsedMB > 100 ? 'warning' : 'healthy';
+  
+  // Overall status
+  const overallStatus = (memoryStatus === 'warning' || processMemoryStatus === 'warning') 
+    ? 'warning' 
+    : 'healthy';
+
+  res.json({
+    status: overallStatus,
+    timestamp: new Date().toISOString(),
+    service: 'harbor-ci-cd-demo',
+    version: process.env.npm_package_version || '1.0.0',
+    uptime: {
+      process: Math.round(process.uptime()),
+      system: Math.round(os.uptime())
+    },
+    memory: {
+      status: memoryStatus,
+      system: {
+        total: Math.round(totalMem / 1024 / 1024 / 1024 * 100) / 100,
+        used: Math.round((totalMem - freeMem) / 1024 / 1024 / 1024 * 100) / 100,
+        percentage: Math.round(memoryPercentage)
+      },
+      process: {
+        status: processMemoryStatus,
+        heapUsed: Math.round(heapUsedMB),
+        heapTotal: Math.round(memoryUsage.heapTotal / 1024 / 1024),
+        rss: Math.round(memoryUsage.rss / 1024 / 1024)
+      }
+    },
+    loadAverage: os.loadavg().map(load => Math.round(load * 100) / 100),
+    environment: process.env.NODE_ENV || 'development'
+  });
+});
+
+// Readiness probe (for Kubernetes-style deployments)
+router.get('/ready', (req, res) => {
+  // Check if the application is ready to serve traffic
+  // In a real app, you might check database connections, external services, etc.
+  
+  const isReady = true; // Simplified check
+  
+  if (isReady) {
+    res.json({
+      status: 'ready',
+      timestamp: new Date().toISOString()
+    });
+  } else {
+    res.status(503).json({
+      status: 'not ready',
+      timestamp: new Date().toISOString()
+    });
+  }
+});
+
+// Liveness probe (for Kubernetes-style deployments)
+router.get('/live', (req, res) => {
+  // Check if the application is alive and should not be restarted
+  res.json({
+    status: 'alive',
+    timestamp: new Date().toISOString(),
+    uptime: process.uptime()
+  });
+});
+
+module.exports = router;