Manager crashes on startup

[millerdev]

connected to master
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 670, in urlopen
    httplib_response = self._make_request(
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 392, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/local/lib/python3.8/http/client.py", line 1230, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1276, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1225, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1004, in _send_output
    self.send(msg)
  File "/usr/local/lib/python3.8/http/client.py", line 944, in send
    self.connect()
  File "/usr/local/lib/python3.8/site-packages/docker/transport/unixconn.py", line 43, in connect
    sock.connect(self.unix_socket)
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/requests/adapters.py", line 439, in send
    resp = conn.urlopen(
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 724, in urlopen
    retries = retries.increment(
  File "/usr/local/lib/python3.8/site-packages/urllib3/util/retry.py", line 403, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "/usr/local/lib/python3.8/site-packages/urllib3/packages/six.py", line 734, in reraise
    raise value.with_traceback(tb)
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 670, in urlopen
    httplib_response = self._make_request(
  File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 392, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/local/lib/python3.8/http/client.py", line 1230, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1276, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1225, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.8/http/client.py", line 1004, in _send_output
    self.send(msg)
  File "/usr/local/lib/python3.8/http/client.py", line 944, in send
    self.connect()
  File "/usr/local/lib/python3.8/site-packages/docker/transport/unixconn.py", line 43, in connect
    sock.connect(self.unix_socket)
urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionRefusedError(111, 'Connection refused'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./manager.py", line 114, in <module>
    main()
  File "./manager.py", line 110, in main
    docker_checker()
  File "./manager.py", line 78, in docker_checker
    this_container = client.containers.get(my_hostname)
  File "/usr/local/lib/python3.8/site-packages/docker/models/containers.py", line 880, in get
    resp = self.client.api.inspect_container(container_id)
  File "/usr/local/lib/python3.8/site-packages/docker/utils/decorators.py", line 19, in wrapped
    return f(self, resource_id, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/docker/api/container.py", line 758, in inspect_container
    self._get(self._url("/containers/{0}/json", container)), True
  File "/usr/local/lib/python3.8/site-packages/docker/utils/decorators.py", line 46, in inner
    return f(self, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/docker/api/client.py", line 230, in _get
    return self.get(url, **self._set_request_timeout(kwargs))
  File "/usr/local/lib/python3.8/site-packages/requests/sessions.py", line 543, in get
    return self.request('GET', url, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/sessions.py", line 530, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/sessions.py", line 643, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/requests/adapters.py", line 498, in send
    raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', ConnectionRefusedError(111, 'Connection refused'))
citus_manager exited with code 1

Docker rootless on Ubuntu 20.04 Docker version 19.03.11, build 42e35e61f3 docker-compose version 1.26.0, build unknown

[millerdev]

The problem is this line in the compose file, which is hard-coded to use /var/run/docker.sock. In a rootless setup it should use the path in $DOCKER_HOST.

The compose file can be fixed by changing the line in docker-compose.yml to:

      - "${DOCKER_SOCK:-/var/run/docker.sock}:/var/run/docker.sock"

Note that DOCKER_SOCK is a custom environment variable that must be set on the rootless docker host:

export DOCKER_SOCK=$XDG_RUNTIME_DIR/docker.sock