gistfile1.txt

[D 2017-02-23 11:33:11.390 JupyterHub app:740] Generating new cookie_secret
[I 2017-02-23 11:33:11.390 JupyterHub app:745] Writing cookie_secret to /srv/jupyterhub_config/jupyterhub_cookie_secret
[D 2017-02-23 11:33:11.391 JupyterHub app:796] Connecting to db: sqlite:///jupyterhub.sqlite
[W 2017-02-23 11:33:12.361 JupyterHub app:365] 
    Generating CONFIGPROXY_AUTH_TOKEN. Restarting the Hub will require restarting the proxy.
    Set CONFIGPROXY_AUTH_TOKEN env or JupyterHub.proxy_auth_token config to avoid this message.
    
[D 2017-02-23 11:33:12.595 JupyterHub app:1085] Loading state for juno from db
[D 2017-02-23 11:33:12.596 JupyterHub dockerspawner:348] Getting container 'jupyter-juno'
[E 2017-02-23 11:33:12.667 JupyterHub app:1527]
    Traceback (most recent call last):
      File "/opt/conda/lib/python3.5/site-packages/jupyterhub/app.py", line 1524, in launch_instance_async
        yield self.initialize(argv)
      File "/opt/conda/lib/python3.5/types.py", line 179, in throw
        return self.__wrapped.throw(tp, *rest)
      File "/opt/conda/lib/python3.5/site-packages/jupyterhub/app.py", line 1315, in initialize
        yield self.init_spawners()
      File "/opt/conda/lib/python3.5/site-packages/jupyterhub/app.py", line 1087, in init_spawners
        status = yield spawner.poll()
      File "/opt/conda/lib/python3.5/site-packages/dockerspawner/dockerspawner.py", line 325, in poll
        container = yield self.get_container()
      File "/opt/conda/lib/python3.5/site-packages/dockerspawner/dockerspawner.py", line 351, in get_container
        'inspect_container', self.container_name
      File "/opt/conda/lib/python3.5/concurrent/futures/_base.py", line 398, in result
        return self.__get_result()
      File "/opt/conda/lib/python3.5/concurrent/futures/_base.py", line 357, in __get_result
        raise self._exception
      File "/opt/conda/lib/python3.5/concurrent/futures/thread.py", line 55, in run
        result = self.fn(*self.args, **self.kwargs)
      File "/opt/conda/lib/python3.5/site-packages/dockerspawner/dockerspawner.py", line 312, in _docker
        m = getattr(self.client, method)
      File "/opt/conda/lib/python3.5/site-packages/dockerspawner/dockerspawner.py", line 71, in client
        client = docker.Client(base_url=docker_host, tls=tls_config, version='auto')
      File "/opt/conda/lib/python3.5/site-packages/docker/client.py", line 99, in __init__
        self._version = self._retrieve_server_version()
      File "/opt/conda/lib/python3.5/site-packages/docker/client.py", line 124, in _retrieve_server_version
        'Error while fetching server API version: {0}'.format(e)
    docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))