refactor: move healthcheck configuration from docker-compose to Dockerfile

.env.example

@@ -1,6 +1,5 @@
-# Core Server Configuration
-PORT=3000
+APP_PORT=3000
 API_KEY=your_secret_api_key_here
 
-# Redis Configuration (Use redis://redis:6379 for Docker)
-REDIS_URL=redis://localhost:6379
+REDIS_HOST=redis
+REDIS_PORT=6379

Dockerfile

@@ -11,4 +11,7 @@ ENV NODE_ENV=production
 USER bun
 EXPOSE 3000
 
+HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
+  CMD bun -e "fetch('http://localhost:3000/health').then(res => res.ok ? process.exit(0) : process.exit(1)).catch(e => process.exit(1))"
+
 CMD ["bun", "run", "start"]

docker-compose.yml

@@ -3,22 +3,19 @@ services:
     build: .
     restart: always
     ports:
-      - "${PORT:-3000}:3000"
+      - "${APP_PORT:-3000}:3000"
     environment:
-      - REDIS_URL=redis://redis:6379
+      - REDIS_HOST=redis
+      - REDIS_PORT=6379
       - API_KEY=${API_KEY}
     depends_on:
       - redis
-    healthcheck:
-      test: [ "CMD", "bun", "-e", "fetch('http://localhost:3000/health').then(res => res.ok ? process.exit(0) : process.exit(1)).catch(e => process.exit(1))" ]
-      interval: 30s
-      timeout: 5s
-      retries: 3
-      start_period: 10s
 
   redis:
     image: redis:alpine
     restart: always
+    ports:
+      - "${REDIS_PORT:-6379}:6379"
     volumes:
       - redis-data:/data
 

src/config.ts

@@ -1,8 +1,9 @@
 import { z } from "zod";
 
 const configSchema = z.object({
-	PORT: z.string().default("3000"),
-	REDIS_URL: z.string(),
+	APP_PORT: z.string().default("3000"),
+	REDIS_HOST: z.string().default("redis"),
+	REDIS_PORT: z.coerce.number().default(6379),
 	API_KEY: z.string(),
 });
 

src/core/RedisClient.ts

@@ -1,4 +1,7 @@
 import { Redis } from "ioredis";
 import { config } from "../config";
 
-export const redis = new Redis(config.REDIS_URL);
+export const redis = new Redis({
+	host: config.REDIS_HOST,
+	port: config.REDIS_PORT,
+});

src/index.ts

@@ -74,6 +74,6 @@ app.get("/health", async (c) => {
 export { app };
 
 export default {
-	port: Number.parseInt(config.PORT, 10),
+	port: Number.parseInt(config.APP_PORT, 10),
 	fetch: app.fetch,
 };

tests/setup.ts

@@ -2,8 +2,9 @@ import { mock } from "bun:test";
 
 // Global test setup to stub environment variables
 process.env.API_KEY = "test-api-key";
-process.env.REDIS_URL = "redis://localhost:6379";
-process.env.PORT = "3000";
+process.env.REDIS_HOST = "localhost";
+process.env.REDIS_PORT = "6379";
+process.env.APP_PORT = "3000";
 
 // Global Redis mock
 mock.module("../src/core/RedisClient", () => ({