lambda sam local fail to connect to redis

Hi Team,

I'm currently trying to test my Lambda function locally using the SAM CLI with the command sam local invoke -e events/requests/event.json or through the VSCode debugger by specifying the paths for template.yaml and the payload event file in launch.json.

My Lambda code needs to connect to an AWS Redis cluster. Locally, I created a Redis server via Docker, testing multiple image types (e.g., redis:7.4.0-alpine, redis-stack, redis:latest).

this my docker-compose file

version: "3.8"

services:
  redis:
    image: "redis:latest" #image: redis:7.4.0-alpine # Lightweight Alpine version of Redis
    command: ["redis-server", "--bind", "redis", "--port", "6379"]
    container_name: redis-server
    restart: always
    ports:
      - "6379:6379"
    expose:
      - "6379"
    volumes:
      - redis-data:/data
      - ./redis.conf:/tmp/redis.conf
    #command: ["redis-server", "--appendonly", "yes"]  # Enable persistence to mimic ElastiCache behavior
    networks:
      - myNet
volumes:
  redis-data:
#    driver: local             # Use the local driver for volume (default)

networks:
  myNet:
    driver: bridge
    name: sam-network

also tried tired turn redis container directly with docker run cmd : docker run --name local-redis -p 6379:6379 -d redis

However, each time I encounter the following error:

	48d7985d-ccd8-4dee-b01c-bf6da0d35679	ERROR	ERROR while attempting to connect to Redis cluster! exec the cmd: 'process.exit(1)' Error: connect ECONNREFUSED 127.0.0.1:6379
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1555:16)
    at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:128:17) {
  errno: -111,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 6379
}

I also tried installing Redis directly on my machine without using Docker, but I still encounter the same issue. I modified the redis.conf file, changing bind 127.0.0.1 ::1 to bind 0.0.0.0, but the error persists.

this is my lambda code that tries to connect to Redis (typescript):

import { createClient, RedisClientType } from "redis";
export function createClient(
  REDIS_HOST: string,
  REDIS_PORT: string
) {
  //try-1
  const redisClient2 = redis.createClient(6379, "localhost"); //const redis = require("redis");

//try-2
  const redisClient2 = redis.createClient(6379, "127.0.0.1");//const redis = require("redis");
//try-3
  const redisClient2 = createClient(); //import { createClient, RedisClientType } from "redis";
  redisClient2.connect();
  console.log(redisClient2.isOpen);
 //try-4
  const redisClient2 = createClient({
    url: `redis://localhost:${REDIS_PORT}`, //=> redis:// => one 's'
  });

//try-5
  const redisClient2 = createClient({
    url: `rediss://${REDIS_HOST}:${REDIS_PORT}`, //==> rediss:// => tow 's'
  });
  //const redisClient2 = createClient();

//try-6
 const redisClient2 = createClient({
    socket: {
      host: "localhost",
      port: 6379,
      tls: false,
    },
    password: "1234",
    //username: "username",
  });

  redisClient2.on("error", (err: any) => {
    console.error(
      "ERROR while attempting to connect to Redis cluster! ",
      err
    );
    process.exit(1);
  });

  return redisClient2;
}

all of those tris gives the same error above

ps: when I connect a redis GUI installed locally to the redis server docker container or the redis server installed locally (and unchecked the tls checkbox) I can connect the client GUI successfully. only with code I had the above error

Could you please assist me in resolving this? How can I properly connect to my local Redis server running inside a Docker container with SAM local?

I followed the solutions proposed on these links, but none of the suggested solutions worked.

https://stackoverflow.com/questions/50818146/docker-cant-connect-to-redis-from-another-service/58891367#58891367

https://forums.docker.com/t/connecting-redis-from-my-network-in-docker-net-core-application/92405/4

https://github.com/redis/ioredis/issues/763

https://github.com/redis/node-redis/issues/2416

https://github.com/aws/aws-sam-cli/issues/4042

thank you!!