I tried having a Sveltekit app with redis running on docker-compose (which was running just fine on the host machine without docker)

I tried with this docker-compose.yml:

version: '3.8'

services:
  app:
    build: .
    ports:
      - "3000:3000"
    depends_on:
      - redis

  redis:
    image: redis:latest
    ports:
      - "6379:6379"
    command: ["redis-server", "--requirepass", "tj9Z47LRLRzbShNQxFnpPvd5bLpzqZky"]

And this Dockerfile:

FROM node:22

WORKDIR /app

COPY package*.json .

RUN npm install

COPY . .

RUN npm run build

EXPOSE 3000

CMD [ "node", "build" ]

And got this error:

Error: connect ECONNREFUSED 127.0.0.1:6379
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1595:16)
    at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
  errno: -111,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 6379
}

Just for context, this is src/lib/redis.ts:

import { createClient } from "redis";
import { REDIS_HOST, REDIS_PASSWORD } from "$env/static/private";

const redis = createClient({
  url: REDIS_HOST,
  password: REDIS_PASSWORD,
});

await redis.connect();

export default redis;

How can I solve this issue?