update health check

backend/src/server/routes/index.ts

@@ -1,4 +1,5 @@
 import { CronJob } from "cron";
+import { Redis } from "ioredis";
 import { Knex } from "knex";
 import { z } from "zod";
 
@@ -71,6 +72,7 @@ import { trustedIpDALFactory } from "@app/ee/services/trusted-ip/trusted-ip-dal"
 import { trustedIpServiceFactory } from "@app/ee/services/trusted-ip/trusted-ip-service";
 import { TKeyStoreFactory } from "@app/keystore/keystore";
 import { getConfig } from "@app/lib/config/env";
+import { logger } from "@app/lib/logger";
 import { TQueueServiceFactory } from "@app/queue";
 import { readLimit } from "@app/server/config/rateLimiter";
 import { accessTokenQueueServiceFactory } from "@app/services/access-token-queue/access-token-queue";
@@ -1257,7 +1259,7 @@ export const registerRoutes = async (
       response: {
         200: z.object({
           date: z.date(),
-          message: z.literal("Ok"),
+          message: z.string().optional(),
           emailConfigured: z.boolean().optional(),
           inviteOnlySignup: z.boolean().optional(),
           redisConfigured: z.boolean().optional(),
@@ -1266,12 +1268,37 @@ export const registerRoutes = async (
         })
       }
     },
-    handler: async () => {
+    handler: async (request, reply) => {
       const cfg = getConfig();
       const serverCfg = await getServerCfg();
+
+      try {
+        await db.raw("SELECT NOW()");
+      } catch (err) {
+        logger.error("Health check: database connection failed", err);
+        return reply.code(503).send({
+          date: new Date(),
+          message: "Service unavailable"
+        });
+      }
+
+      if (cfg.isRedisConfigured) {
+        const redis = new Redis(cfg.REDIS_URL);
+        try {
+          await redis.ping();
+          redis.disconnect();
+        } catch (err) {
+          logger.error("Health check: redis connection failed", err);
+          return reply.code(503).send({
+            date: new Date(),
+            message: "Service unavailable"
+          });
+        }
+      }
+
       return {
         date: new Date(),
-        message: "Ok" as const,
+        message: "Ok",
         emailConfigured: cfg.isSmtpConfigured,
         inviteOnlySignup: Boolean(serverCfg.allowSignUp),
         redisConfigured: cfg.isRedisConfigured,