feat: healthcheck

deploy/handy.yaml

@@ -25,15 +25,33 @@ spec:
       - name: handy
         image: docker.korshakov.com/handy-server:{version}
         ports:
-        - containerPort: 3001
+        - containerPort: 3005
         env:
         - name: NODE_ENV
           value: production
+        - name: PORT
+          value: "3005"
         - name: REDIS_URL
           value: redis://happy-redis:6379
         envFrom:
         - secretRef:
             name: handy-secrets
+        livenessProbe:
+          httpGet:
+            path: /health
+            port: 3005
+          initialDelaySeconds: 30
+          periodSeconds: 10
+          timeoutSeconds: 5
+          failureThreshold: 3
+        readinessProbe:
+          httpGet:
+            path: /health
+            port: 3005
+          initialDelaySeconds: 5
+          periodSeconds: 5
+          timeoutSeconds: 3
+          failureThreshold: 3
 ---
 apiVersion: policy/v1
 kind: PodDisruptionBudget

sources/app/api.ts

@@ -64,7 +64,7 @@ export async function startApi(): Promise<{ app: FastifyInstance; io: Server }>
         logger: true,
         bodyLimit: 1024 * 1024 * 100, // 100MB
     });
-    app.register(require('@fastify/cors'), {
+    app.register(import('@fastify/cors'), {
         origin: '*',
         allowedHeaders: '*',
         methods: ['GET', 'POST']
@@ -72,6 +72,27 @@ export async function startApi(): Promise<{ app: FastifyInstance; io: Server }>
     app.get('/', function (request, reply) {
         reply.send('Welcome to Happy Server!');
     });
+
+    // Health check endpoint
+    app.get('/health', async (request, reply) => {
+        try {
+            // Test database connectivity
+            await db.$queryRaw`SELECT 1`;
+            reply.send({ 
+                status: 'ok', 
+                timestamp: new Date().toISOString(),
+                service: 'happy-server'
+            });
+        } catch (error) {
+            log({ module: 'health', level: 'error' }, `Health check failed: ${error}`);
+            reply.code(503).send({ 
+                status: 'error', 
+                timestamp: new Date().toISOString(),
+                service: 'happy-server',
+                error: 'Database connectivity failed'
+            });
+        }
+    });
     app.setValidatorCompiler(validatorCompiler);
     app.setSerializerCompiler(serializerCompiler);
     const typed = app.withTypeProvider<ZodTypeProvider>();