docker-compose keeps saying "ConnectionRefusedError: [Errno 111] Connection refused" - docker

Question

Similar to other questions (see here and here) I'm getting the following error, both ways, with sudo or without:
/snap/docker/2343/lib/python3.6/site-packages/paramiko/transport.py:33: CryptographyDeprecationWarning: Python 3.6 is no longer supported by the Python core team. Therefore, support for it is deprecated in cryptography and will be removed in a future release.
from cryptography.hazmat.backends import default_backend
Traceback (most recent call last):
File "/snap/docker/2343/lib/python3.6/site-packages/urllib3/connectionpool.py", line 710, in urlopen
chunked=chunked,
File "/snap/docker/2343/lib/python3.6/site-packages/urllib3/connectionpool.py", line 398, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1285, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1331, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1280, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1046, in _send_output
self.send(msg)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 984, in send
self.connect()
File "/snap/docker/2343/lib/python3.6/site-packages/docker/transport/unixconn.py", line 30, 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 "/snap/docker/2343/lib/python3.6/site-packages/requests/adapters.py", line 450, in send
timeout=timeout
File "/snap/docker/2343/lib/python3.6/site-packages/urllib3/connectionpool.py", line 788, in urlopen
method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
File "/snap/docker/2343/lib/python3.6/site-packages/urllib3/util/retry.py", line 550, in increment
raise six.reraise(type(error), error, _stacktrace)
File "/snap/docker/2343/lib/python3.6/site-packages/urllib3/packages/six.py", line 769, in reraise
raise value.with_traceback(tb)
File "/snap/docker/2343/lib/python3.6/site-packages/urllib3/connectionpool.py", line 710, in urlopen
chunked=chunked,
File "/snap/docker/2343/lib/python3.6/site-packages/urllib3/connectionpool.py", line 398, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1285, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1331, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1280, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 1046, in _send_output
self.send(msg)
File "/snap/docker/2343/usr/lib/python3.6/http/client.py", line 984, in send
self.connect()
File "/snap/docker/2343/lib/python3.6/site-packages/docker/transport/unixconn.py", line 30, 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 "/snap/docker/2343/lib/python3.6/site-packages/docker/api/client.py", line 214, in _retrieve_server_version
return self.version(api_version=False)["ApiVersion"]
File "/snap/docker/2343/lib/python3.6/site-packages/docker/api/daemon.py", line 181, in version
return self._result(self._get(url), json=True)
File "/snap/docker/2343/lib/python3.6/site-packages/docker/utils/decorators.py", line 46, in inner
return f(self, *args, **kwargs)
File "/snap/docker/2343/lib/python3.6/site-packages/docker/api/client.py", line 237, in _get
return self.get(url, **self._set_request_timeout(kwargs))
File "/snap/docker/2343/lib/python3.6/site-packages/requests/sessions.py", line 542, in get
return self.request('GET', url, **kwargs)
File "/snap/docker/2343/lib/python3.6/site-packages/requests/sessions.py", line 529, in request
resp = self.send(prep, **send_kwargs)
File "/snap/docker/2343/lib/python3.6/site-packages/requests/sessions.py", line 645, in send
r = adapter.send(request, **kwargs)
File "/snap/docker/2343/lib/python3.6/site-packages/requests/adapters.py", line 501, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', ConnectionRefusedError(111, 'Connection refused'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/snap/docker/2343/bin/docker-compose", line 33, in <module>
sys.exit(load_entry_point('docker-compose==1.29.2', 'console_scripts', 'docker-compose')())
File "/snap/docker/2343/lib/python3.6/site-packages/compose/cli/main.py", line 81, in main
command_func()
File "/snap/docker/2343/lib/python3.6/site-packages/compose/cli/main.py", line 200, in perform_command
project = project_from_options('.', options)
File "/snap/docker/2343/lib/python3.6/site-packages/compose/cli/command.py", line 70, in project_from_options
enabled_profiles=get_profiles_from_options(options, environment)
File "/snap/docker/2343/lib/python3.6/site-packages/compose/cli/command.py", line 153, in get_project
verbose=verbose, version=api_version, context=context, environment=environment
File "/snap/docker/2343/lib/python3.6/site-packages/compose/cli/docker_client.py", line 43, in get_client
environment=environment, tls_version=get_tls_version(environment)
File "/snap/docker/2343/lib/python3.6/site-packages/compose/cli/docker_client.py", line 170, in docker_client
client = APIClient(use_ssh_client=not use_paramiko_ssh, **kwargs)
File "/snap/docker/2343/lib/python3.6/site-packages/docker/api/client.py", line 197, in __init__
self._version = self._retrieve_server_version()
File "/snap/docker/2343/lib/python3.6/site-packages/docker/api/client.py", line 222, in _retrieve_server_version
f'Error while fetching server API version: {e}'
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', ConnectionRefusedError(111, 'Connection refused'))
Docker-Compose version is 1.29.2, build unknown.
Docker-Desktop v4.16.2 is running.
The docker-compose file is the sample from the installation guide:
services:
opensearch-node1: # This is also the hostname of the container within the Docker network (i.e. https://opensearch-node1/)
image: opensearchproject/opensearch:latest # Specifying the latest available image - modify if you want a specific version
container_name: opensearch-node1
environment:
- cluster.name=opensearch-cluster # Name the cluster
- node.name=opensearch-node1 # Name the node that will run in this container
- discovery.seed_hosts=opensearch-node1,opensearch-node2 # Nodes to look for when discovering the cluster
- cluster.initial_cluster_manager_nodes=opensearch-node1,opensearch-node2 # Nodes eligible to serve as cluster manager
- bootstrap.memory_lock=true # Disable JVM heap memory swapping
- "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m" # Set min and max JVM heap sizes to at least 50% of system RAM
ulimits:
memlock:
soft: -1 # Set memlock to unlimited (no soft or hard limit)
hard: -1
nofile:
soft: 65536 # Maximum number of open files for the opensearch user - set to at least 65536
hard: 65536
volumes:
- opensearch-data1:/usr/share/opensearch/data # Creates volume called opensearch-data1 and mounts it to the container
ports:
- 9200:9200 # REST API
- 9600:9600 # Performance Analyzer
networks:
- opensearch-net # All of the containers will join the same Docker bridge network
opensearch-node2:
image: opensearchproject/opensearch:latest # This should be the same image used for opensearch-node1 to avoid issues
container_name: opensearch-node2
environment:
- cluster.name=opensearch-cluster
- node.name=opensearch-node2
- discovery.seed_hosts=opensearch-node1,opensearch-node2
- cluster.initial_cluster_manager_nodes=opensearch-node1,opensearch-node2
- bootstrap.memory_lock=true
- "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
nofile:
soft: 65536
hard: 65536
volumes:
- opensearch-data2:/usr/share/opensearch/data
networks:
- opensearch-net
opensearch-dashboards:
image: opensearchproject/opensearch-dashboards:latest # Make sure the version of opensearch-dashboards matches the version of opensearch installed on other nodes
container_name: opensearch-dashboards
ports:
- 5601:5601 # Map host port 5601 to container port 5601
expose:
- "5601" # Expose port 5601 for web access to OpenSearch Dashboards
environment:
OPENSEARCH_HOSTS: '["https://opensearch-node1:9200","https://opensearch-node2:9200"]' # Define the OpenSearch nodes that OpenSearch Dashboards will query
networks:
- opensearch-net
volumes:
opensearch-data1:
opensearch-data2:
networks:
opensearch-net:
Docker-Service (version 23.0.1, build a5ee5b1) is both, started and enabled.
● docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2023-02-15 16:21:30 CET; 3min 6s ago
TriggeredBy: ● docker.socket
Docs: https://docs.docker.com
Main PID: 115111 (dockerd)
Tasks: 13
Memory: 24.5M
CPU: 433ms
CGroup: /system.slice/docker.service
└─115111 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
Feb 15 16:21:29 pb-hp dockerd[115111]: time="2023-02-15T16:21:29.718609786+01:00" level=info msg="[core] [Channel #4] Channel Connectivity change to READY" module=grpc
Feb 15 16:21:29 pb-hp dockerd[115111]: time="2023-02-15T16:21:29.805482945+01:00" level=info msg="[graphdriver] using prior storage driver: zfs"
Feb 15 16:21:29 pb-hp dockerd[115111]: time="2023-02-15T16:21:29.821299671+01:00" level=info msg="Loading containers: start."
Feb 15 16:21:29 pb-hp dockerd[115111]: time="2023-02-15T16:21:29.944847466+01:00" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip can be used to set a >
Feb 15 16:21:29 pb-hp dockerd[115111]: time="2023-02-15T16:21:29.979883193+01:00" level=info msg="Loading containers: done."
Feb 15 16:21:29 pb-hp dockerd[115111]: time="2023-02-15T16:21:29.991791851+01:00" level=info msg="Docker daemon" commit=bc3805a graphdriver=zfs version=23.0.1
Feb 15 16:21:29 pb-hp dockerd[115111]: time="2023-02-15T16:21:29.991880201+01:00" level=info msg="Daemon has completed initialization"
Feb 15 16:21:30 pb-hp dockerd[115111]: time="2023-02-15T16:21:30.013044715+01:00" level=info msg="[core] [Server #7] Server created" module=grpc
Feb 15 16:21:30 pb-hp systemd[1]: Started Docker Application Container Engine.
Feb 15 16:21:30 pb-hp dockerd[115111]: time="2023-02-15T16:21:30.023604797+01:00" level=info msg="API listen on /run/docker.sock"
I can see that a container that I imported in Docker-Desktop is running:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
bd0f564c0243 docker101tutorial "/docker-entrypoint.…" 2 hours ago Up 2 hours 0.0.0.0:80->80/tcp docker-tutorial
According to answers to similar problems, I've tried the following already:
source ~/.bashrc (see here)
sudo groupadd docker plus sudo usermod -aG docker $USER (see here). groups is confirming that I am in the group docker.
sudo gpasswd -a $USER docker plus newgrp docker - doing the same as above, just to make sure everything has been tried (see here)
sudo chmod 666 /var/run/docker.sock (potentially unsafe, but it's only my development machine) (see here)
sudo service docker restart (sudo systemctl status docker.service in my case) (see here)
"Enable Docker Compose V1/V2 compatibility mode" is checked in Docker-Desktop (see here) though I guess this is unnecessary because of the initial line version: '3'.
I also wanted to set "WSL Integration" as recommended here but the option is not present in my version of Docker Desktop.
By the way, the same error appears when I say: $ docker-compose -f /home/bo/git/gokb/docker-compose-default.yml down.
How can I make the error disappear and compose?
I am a very-newbie to docker.