chore: add docker compose to make contributor easy

Author: fengmk2

README.md

@@ -233,6 +233,26 @@ module.exports = app => {
 };
 ```
 
+## For the local dev
+
+Run docker compose to start test redis service
+
+```bash
+docker compose -f docker-compose.yml up -d
+```
+
+Run the unit tests
+
+```bash
+npm test
+```
+
+Stop test redis service
+
+```bash
+docker compose -f docker-compose.yml down
+```
+
 ## Questions & Suggestions
 
 Please open an issue [here](https://github.com/eggjs/egg/issues).

docker-compose.yml

@@ -0,0 +1,7 @@
+name: eggjs_redis_dev
+
+services:
+  redis:
+    image: redis:alpine
+    ports:
+      - 6379:6379

test/fixtures/apps/ts-multi/redisapp-ts/app/controller/home.ts

@@ -14,6 +14,7 @@ declare module 'egg' {
 export default class HomeController extends Controller {
   async index() {
     const { ctx,app } = this;
+    // @deprecated please use `getSingletonInstance(id)` instead
     const redis = app.redis.get('cache') as unknown as Redis;
     await redis.set('foo', 'bar');
     const redis2 = app.redis.getSingletonInstance('cache');