Connect trough different docker containers | ConnectionRefusedError: [Errno 111] Connection refused

I ran into an issue when connecting to my Redis server when using docker. Am using the latest stable versions of aioredis and Python 3.8.

My docker-compose.yml:

version: "3.8"
services:
  redis-server:
    image: redis:6-alpine
    ports:
      - "6379:6379"
    # volumes: Tried to accept connections from 0.0.0.0
    #   - "./redis.conf:/usr/local/etc/redis/redis.conf"
    # command: [ "redis-server", "/usr/local/etc/redis/redis.conf" ]

  discord-bot:
    image: luc1412/easyfnstats:dev
    restart: unless-stopped
    volumes:
      - "./config:/app/config"
      - "easyfnstats_data:/app/data"
    depends_on:
      - "redis-server"
      - "mongo-database"
    networks:
      - redis

volumes:
  easyfnstats_data:

networks:
  redis:
    driver: bridge

The relevant part of my code:

# Ensure redis is up
for i in range(9, 0, -1):
    logger.info(f'Launch in {i + 1}')
    time.sleep(1)
self._redis = await aioredis.create_redis_pool(REDIS_URI, minsize=1, maxsize=2)

I tried following for REDIS_URI:

• redis://localhost
• redis://127.0.0.1
• redis://redis-server
• redis://redis

Error:

discord-bot_1     | Process Process-1:
discord-bot_1     | Traceback (most recent call last):
discord-bot_1     |   File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
discord-bot_1     |     self.run()
discord-bot_1     |   File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
discord-bot_1     |     self._target(*self._args, **self._kwargs)
discord-bot_1     |   File "/app/launch.py", line 122, in __init__
discord-bot_1     |     self.run()
discord-bot_1     |   File "/usr/local/lib/python3.9/site-packages/discord/client.py", line 708, in run
discord-bot_1     |     return future.result()
discord-bot_1     |   File "/usr/local/lib/python3.9/site-packages/discord/client.py", line 687, in runner
discord-bot_1     |     await self.start(*args, **kwargs)
discord-bot_1     |   File "/app/easy_fortnite_stats.py", line 176, in start
discord-bot_1     |     self.redis = await aioredis.create_redis_pool(
discord-bot_1     |   File "/usr/local/lib/python3.9/site-packages/aioredis/commands/__init__.py", line 188, in create_redis_pool
discord-bot_1     |     pool = await create_pool(address, db=db,
discord-bot_1     |   File "/usr/local/lib/python3.9/site-packages/aioredis/pool.py", line 58, in create_pool
discord-bot_1     |     await pool._fill_free(override_min=False)
discord-bot_1     |   File "/usr/local/lib/python3.9/site-packages/aioredis/pool.py", line 383, in _fill_free
discord-bot_1     |     conn = await self._create_new_connection(self._address)
discord-bot_1     |   File "/usr/local/lib/python3.9/site-packages/aioredis/connection.py", line 111, in create_connection
discord-bot_1     |     reader, writer = await asyncio.wait_for(open_connection(
discord-bot_1     |   File "/usr/local/lib/python3.9/asyncio/tasks.py", line 442, in wait_for
discord-bot_1     |     return await fut
discord-bot_1     |   File "/usr/local/lib/python3.9/site-packages/aioredis/stream.py", line 23, in open_connection
discord-bot_1     |     transport, _ = await get_event_loop().create_connection(
discord-bot_1     |   File "uvloop/loop.pyx", line 1974, in create_connection
discord-bot_1     |   File "uvloop/loop.pyx", line 1951, in uvloop.loop.Loop.create_connection
discord-bot_1     | ConnectionRefusedError: [Errno 111] Connection refused

[Luc1412]

Thanks for the help. I just made a stupid error and just created the bridge between my app and Mongo DB instead of Redis. So it was just a typo.

[Luc1412]

My bad, use redis://redis-server:6379/0 since your container will be “redis-server”, not “redis”, as specified in your compose file.

That results in the same error as above. Also with the removal of ports.