redis connection refused between containers

I’m building a small app divided in 3 services using docker I have redisjson service a node server and a python application.

I always run the redis inside a container for development, in the first stages I run the python script and the node app natively I simply used to connect to the redis using localhost.

To standardize and deploy the environment I have set up containers for each service, but the moment I tried to connect to redis from the other containers it refuses the connection.
Below is my compose file, indentation might have got spooky during the copy pasta hopefully not.
I had to switch ports from 6379 to 7000 for redis because it was giving me connection problems as well.

version: '3.7'
networks:
  app-tier:
    driver: bridge

services:
 redis:
  image: 'redislabs/rejson:latest'
  command: ["redis-server", "--bind", "redis", "--port", "6379", "--requirepass", "password"]
  environment:
    - appendonly
  ports:
    - '7000:6379'
  volumes:
    - redis:/data
  networks:
    - app-tier

 node:
  build: ./tickingServer
  environment:
    TZ: Europe/Rome
  depends_on:
    - redis
  # - mariadb 
  links:
    - "redis"
  # - "mariadb"

  ports:
    - 3000:3000
  restart: always
  networks:
    - app-tier

 wsdaemon:
  build: ./socketServer
  environment:
    TZ: Europe/Rome
  depends_on:
    - redis
  links:
    - "redis"
  volumes:
    - ./logs:/usr/src/websocketdaemon/logs
  ports:
    - 8000:8000
  restart: always
  networks:
    - app-tier
volumes:
  redis:

on my system the both the native port and the 7000 were free and now they correctly result in use from the docker-proxy.
According to the docker networking I’m using as hostname for the connection ‘redis’ as I named the service so. The python testing snippet for the connection is the following:

import log
import configuration
import redis

config = configuration.configuration()
logger = log.Log().get_logger(
     __name__, config['logFolder'], config['logFormat'])


redis_client = redis.Redis(host='redis', port=7000, db=0, password='password')

the nodejs connector looks like this:

var Redis = require('ioredis');
var logger = require('../helpers/logHelper');
var JSONCache = require('redis-json');


let modName = "RedisConnector";

var redis = new Redis({
  'host': 'redis',
  'family': 4,
  'db': 0,
  'port': 7000,
  'password': 'password'
});

Source: StackOverflow