Docker [Errno 111] Connect call failed ('127.0.0.1', 6379)

I am trying to follow the tutorial here https://channels.readthedocs.io/en/latest/tutorial/part_2.html and check if channel layer can communicate with Redis. The only different thing I'm doing is that I'm using docker-compose and running the entire thing on a docker container, and that seems to be messing up with everything. This is the error message I'm getting when I try to

run async_to_sync(channel_layer.send)('test_channel', {'type': 'hello'})

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/usr/local/lib/python3.7/site-packages/asgiref/sync.py", line 116, in __call__
    return call_result.result()
  File "/usr/local/lib/python3.7/concurrent/futures/_base.py", line 428, in result
    return self.__get_result()
  File "/usr/local/lib/python3.7/concurrent/futures/_base.py", line 384, in __get_result
    raise self._exception
  File "/usr/local/lib/python3.7/site-packages/asgiref/sync.py", line 156, in main_wrap
    result = await self.awaitable(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/channels_redis/core.py", line 293, in send
    async with self.connection(index) as connection:
  File "/usr/local/lib/python3.7/site-packages/channels_redis/core.py", line 820, in __aenter__
    self.conn = await self.pool.pop()
  File "/usr/local/lib/python3.7/site-packages/channels_redis/core.py", line 70, in pop
    conns.append(await aioredis.create_redis(**self.host, loop=loop))
  File "/usr/local/lib/python3.7/site-packages/aioredis/commands/__init__.py", line 175, in create_redis
    loop=loop)
  File "/usr/local/lib/python3.7/site-packages/aioredis/connection.py", line 113, in create_connection
    timeout)
  File "/usr/local/lib/python3.7/asyncio/tasks.py", line 414, in wait_for
    return await fut
  File "/usr/local/lib/python3.7/site-packages/aioredis/stream.py", line 24, in open_connection
    lambda: protocol, host, port, **kwds)
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 958, in create_connection
    raise exceptions[0]
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 945, in create_connection
    await self.sock_connect(sock, address)
  File "/usr/local/lib/python3.7/asyncio/selector_events.py", line 473, in sock_connect
    return await fut
  File "/usr/local/lib/python3.7/asyncio/selector_events.py", line 503, in _sock_connect_cb
    raise OSError(err, f'Connect call failed {address}')
ConnectionRefusedError: [Errno 111] Connect call failed ('127.0.0.1', 6379)

I've checked a few post and saw that many suggested this is because Redis isn't running. I know that Redis exist since docker ps shows that

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
2ccab2cfc570        test_web            "python manage.py ru…"   7 minutes ago       Up 7 minutes        0.0.0.0:8000->8000/tcp   test_web_1
6da398f093fc        redis:2.8           "docker-entrypoint.s…"   10 minutes ago      Up 10 minutes       0.0.0.0:6379->6379/tcp   relaxed_aryabhata

Any idea what I can do right now? I'm really new to these