title: Docker [Errno 111] Connect call failed ('127.0.0.1', 6379)
body: <p>I am trying to follow the tutorial here
  <a href="https://channels.readthedocs.io/en/latest/tutorial/part_2.html" rel="noreferrer">https://channels.readthedocs.io/en/latest/tutorial/part_2.html</a> 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 </p>
  
  <p><code>run async_to_sync(channel_layer.send)('test_channel', {'type': 'hello'})</code></p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;console&gt;", line 1, in &lt;module&gt;
    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)
  </code></pre>
  
  <p>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 </p>
  
  <pre><code>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-&gt;8000/tcp   test_web_1
  6da398f093fc        redis:2.8           "docker-entrypoint.s…"   10 minutes ago      Up 10 minutes       0.0.0.0:6379-&gt;6379/tcp   relaxed_aryabhata
  </code></pre>
  
  <p>Any idea what I can do right now? I'm really new to these</p>