Add health check endpoint and controller to cache-proxy service

- Implemented a new HealthController in the cache-proxy application to provide a health check endpoint at `/api/health`, returning a simple status response.
- Updated the AppModule to include the HealthController, ensuring it is registered within the application.
- Configured a health check in the Docker Compose file for the cache-proxy service, allowing for automated health monitoring.

apps/cache-proxy/src/app.module.ts

@@ -1,4 +1,5 @@
 import { ProxyModule } from './proxy/proxy.module';
+import { HealthController } from './health/health.controller';
 import { Global, Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 
@@ -10,6 +11,7 @@ import { ConfigModule } from '@nestjs/config';
     }),
     ProxyModule,
   ],
+  controllers: [HealthController],
   providers: [],
 })
 // eslint-disable-next-line @typescript-eslint/no-extraneous-class

apps/cache-proxy/src/health/health.controller.ts

@@ -0,0 +1,11 @@
+import { Controller, Get } from '@nestjs/common';
+
+@Controller('api')
+export class HealthController {
+  @Get('health')
+  public health() {
+    return { status: 'ok' };
+  }
+}
+
+

docker-compose.yml

@@ -9,6 +9,11 @@ services:
     networks:
       - app
       - web
+    healthcheck:
+      test: ['CMD', 'wget', '-qO-', 'http://localhost:5000/api/health']
+      interval: 10s
+      timeout: 3s
+      retries: 5
   web:
     image: ${DOCKERHUB_USERNAME}/zapishis-web:${WEB_IMAGE_TAG}
     env_file: