docker django无法访问redis容器的解决方法

 redis:
  image: redis
  container_name: xdemo.redis
  ports:
   - 6379:6379
  restart: always
django setting.py中配置redis:

CACHES = {
  'default': {
    'BACKEND': 'django_redis.cache.RedisCache',
    'LOCATION': 'redis://127.0.0.1:6379',
    "OPTIONS": {
      "CLIENT_CLASS": "django_redis.client.DefaultClient",
       "PASSWORD": "",
    },
  },
}

redis.exceptions.ConnectionError: Error 111 connecting to 127.0.0.1:6379. Connection refused.

CACHES = {
  'default': {
    'BACKEND': 'django_redis.cache.RedisCache',
    'LOCATION': 'redis://redis:6379',
    "OPTIONS": {
      "CLIENT_CLASS": "django_redis.client.DefaultClient",
       "PASSWORD": "",
    },
  },
}