added dedicated health endpoint with database connectivity check

Author: ibex088

.github/workflows/docker-publish.yml

@@ -87,7 +87,7 @@ jobs:
             -e NODE_ENV=production \
             -e DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@database:${POSTGRES_PORT}/${POSTGRES_DB} \
             -e REDIS_URL=redis://redis:${REDIS_PORT} \
-            --health-cmd="curl -sf http://localhost:3000/ || exit 1" \
+            --health-cmd="curl -sf http://localhost:3000/health || exit 1" \
             --health-interval=5s \
             --health-timeout=3s \
             --health-retries=60 \

docker-compose.yml

@@ -62,3 +62,9 @@ services:
         condition: service_healthy
       redis:
         condition: service_healthy
+    healthcheck:
+      test: ["CMD", "curl", "-sf", "http://localhost:3000/health"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 30s

src/index.ts

@@ -10,6 +10,15 @@ const app = express()
 
 app.use(express.json())
 
+app.get('/health', async (req, res) => {
+  try {
+    await prisma.$queryRaw`SELECT 1`
+    res.status(200).json({ status: 'healthy', timestamp: new Date().toISOString() })
+  } catch (error) {
+    res.status(503).json({ status: 'unhealthy', error: 'Database connection failed' })
+  }
+})
+
 app.post(`/signup`, async (req, res) => {
   const { name, email, posts } = req.body