DockerException: Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

[sugizo]

env
google colab

steps

!apt update
!apt install -y docker.io
pip install -U docker
import docker

execute

client = docker.from_env()
client

result

FileNotFoundError                         Traceback (most recent call last)
[/usr/local/lib/python3.10/dist-packages/urllib3/connectionpool.py](https://localhost:8080/#) in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, preload_content, decode_content, **response_kw)
    790             # Make the request on the HTTPConnection object
--> 791             response = self._make_request(
    792                 conn,

29 frames
FileNotFoundError: [Errno 2] No such file or directory

During handling of the above exception, another exception occurred:

ProtocolError                             Traceback (most recent call last)
ProtocolError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

During handling of the above exception, another exception occurred:

ConnectionError                           Traceback (most recent call last)
ConnectionError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

The above exception was the direct cause of the following exception:

DockerException                           Traceback (most recent call last)
[/usr/local/lib/python3.10/dist-packages/docker/api/client.py](https://localhost:8080/#) in _retrieve_server_version(self)
    218             ) from ke
    219         except Exception as e:
--> 220             raise DockerException(
    221                 f'Error while fetching server API version: {e}'
    222             ) from e

DockerException: Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

best regards

[Austin Raney]

Seems like a duplicate of #3198.

If you can shell out and have access to the docker cli, you can use docker context inspect $(docker context show) | awk -F '"' '/"Host"/ {print $4}' to get current docker daemon host endpoint. Set that to the DOCKER_HOST environment variable and you should be good to go.

[sugizo]

still not work, already tried
execute
!docker context inspect $(docker context show) | awk -F '"' '/"Host"/ {print $4}'

result
unix:///var/run/docker.sock

trial 1
execute

%env DOCKER_HOST='unix:///var/run/docker.sock'
docker.from_env()

result

DockerException                           Traceback (most recent call last)
[<ipython-input-20-c914c82b5046>](https://localhost:8080/#) in <cell line: 1>()
----> 1 docker.from_env()

3 frames
[/usr/local/lib/python3.10/dist-packages/docker/utils/utils.py](https://localhost:8080/#) in parse_host(addr, is_win32, tls)
    285         if port <= 0:
    286             if proto != 'ssh':
--> 287                 raise errors.DockerException(
    288                     f'Invalid bind address format: port is required: {addr}'
    289                 )

DockerException: Invalid bind address format: port is required: 'unix:///var/run/docker.sock'

trial 2
execute

%env DOCKER_HOST='unix:///var/run/docker.sock:2376'
docker.from_env()

result

DockerException                           Traceback (most recent call last)
[<ipython-input-22-c914c82b5046>](https://localhost:8080/#) in <cell line: 1>()
----> 1 docker.from_env()

3 frames
[/usr/local/lib/python3.10/dist-packages/docker/utils/utils.py](https://localhost:8080/#) in parse_host(addr, is_win32, tls)
    285         if port <= 0:
    286             if proto != 'ssh':
--> 287                 raise errors.DockerException(
    288                     f'Invalid bind address format: port is required: {addr}'
    289                 )

DockerException: Invalid bind address format: port is required: 'unix:///var/run/docker.sock:2376'

trial 3
execute

os.environ['DOCKER_HOST'] = 'unix:///var/run/docker.sock'
docker.from_env()

result

FileNotFoundError                         Traceback (most recent call last)
[/usr/local/lib/python3.10/dist-packages/urllib3/connectionpool.py](https://localhost:8080/#) in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, preload_content, decode_content, **response_kw)
    790             # Make the request on the HTTPConnection object
--> 791             response = self._make_request(
    792                 conn,

29 frames
FileNotFoundError: [Errno 2] No such file or directory

During handling of the above exception, another exception occurred:

ProtocolError                             Traceback (most recent call last)
ProtocolError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

During handling of the above exception, another exception occurred:

ConnectionError                           Traceback (most recent call last)
ConnectionError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

The above exception was the direct cause of the following exception:

DockerException                           Traceback (most recent call last)
[/usr/local/lib/python3.10/dist-packages/docker/api/client.py](https://localhost:8080/#) in _retrieve_server_version(self)
    218             ) from ke
    219         except Exception as e:
--> 220             raise DockerException(
    221                 f'Error while fetching server API version: {e}'
    222             ) from e

DockerException: Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

thanks and best regards

[heyLQ]

how do I solve this problem on a server if I don't have sudo permission?

[Silvan Weder]

The dashboard approach solved it for me on a Mac:

https://devops.stackexchange.com/questions/15602/mac-m1-docker-desktop-no-longer-launches

I.e, do the following steps:

1. Open the docker dashboard
2. Go to settings / advanced
3. Check the box "Allow the default Docker socket to be used (requires password)"
4. Restart