feat: implement comprehensive health check endpoints for API, Auth, and Realtime services to monitor database, Redis, MinIO, and InfluxDB connectivity.

auth/src/index.js

@@ -35,6 +35,22 @@ app.set('view engine', 'html');
 const authRoutes = require('./routes/auth');
 app.use('/', authRoutes);
 
+app.get('/health', async (req, res) => {
+    const dbConnected = await database.checkPostgres();
+    const redisHelper = require('./storage/redis');
+    const redisConnected = await redisHelper.checkRedis();
+
+    res.json({
+        status: dbConnected && redisConnected ? "ok" : "degraded",
+        service: "auth",
+        database: dbConnected ? "connected" : "disconnected",
+        redis: redisConnected ? "connected" : "disconnected",
+        version: version,
+        build_number: vBuild,
+        version_state: vState
+    });
+});
+
 // Startup
 async function start() {
     await database.initDb();

auth/src/storage/database.js

@@ -97,9 +97,19 @@ async function initDb() {
     `);
 }
 
+async function checkPostgres() {
+    try {
+        await pool.query('SELECT NOW()');
+        return true;
+    } catch (error) {
+        return false;
+    }
+}
+
 module.exports = {
     pool,
     query,
     getClient,
-    initDb
+    initDb,
+    checkPostgres
 };

auth/src/storage/redis.js

@@ -32,5 +32,17 @@ async function configure() {
 function connected() {
     return redis.status === 'ready';
 }
+
+async function checkRedis() {
+    try {
+        if (redis.status !== 'ready') {
+            await redis.connect().catch(() => {});
+        }
+        await redis.ping();
+        return true;
+    } catch (err) {
+        return false;
+    }
+}
     
-module.exports = { redis, configure, connected };
+module.exports = { redis, configure, connected, checkRedis };