TaskCat failing to run on k8s with contained runtime.

[alexeygutkin]

Describe the bug
TaskCat failing to run on k8s with contained runtime.

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

To Reproduce
Steps to reproduce the behavior:

1. Run taskcat -d test run inside container running in k8s k8s with contained runtime. image taskcat/taskcat

Expected behavior
test cat testing cf stack

Screenshots
If applicable, add screenshots to help explain your problem.

**Version (Please make sure you are running the latest version of taskcat)

• Taskcat Version 0.9.38

Note: Python Version (python3 required)

To find versions:
Via taskcat: taskcat -V
Via pip3: pip3 show taskcat

Note: both version should match

To update taskcat run:
for docker : docker pull taskcat/taskcat
for pip3: pip3 install --upgrade taskcat

Additional context
Add any other context about the problem here.

[alexeygutkin]

taskcat -d test run

---

| |_ __ _ | | _____ __ | |
| _/ / __| |/ / __/ _ | __|
| || (| _ \ < (| (| | |
__,|/|____,|__|

version 0.9.38
[INFO ] : Linting passed for file: /cloudformation/tests/rookout-hybrid-ami/stack.yaml
[WARN ] : No stacks were created... skipping cleanup.
[ERROR ] : DockerException Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))
Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/urllib3/connectionpool.py", line 714, in urlopen
httplib_response = self._make_request(
File "/usr/lib/python3.10/site-packages/urllib3/connectionpool.py", line 415, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.10/http/client.py", line 1283, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.10/http/client.py", line 1329, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.10/http/client.py", line 1278, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.10/http/client.py", line 1038, in _send_output
self.send(msg)
File "/usr/lib/python3.10/http/client.py", line 976, in send
self.connect()
File "/usr/lib/python3.10/site-packages/docker/transport/unixconn.py", line 43, in connect
sock.connect(self.unix_socket)
FileNotFoundError: [Errno 2] No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/requests/adapters.py", line 486, in send
resp = conn.urlopen(
File "/usr/lib/python3.10/site-packages/urllib3/connectionpool.py", line 798, in urlopen
retries = retries.increment(
File "/usr/lib/python3.10/site-packages/urllib3/util/retry.py", line 550, in increment
raise six.reraise(type(error), error, _stacktrace)
File "/usr/lib/python3.10/site-packages/urllib3/packages/six.py", line 769, in reraise
raise value.with_traceback(tb)
File "/usr/lib/python3.10/site-packages/urllib3/connectionpool.py", line 714, in urlopen
httplib_response = self._make_request(
File "/usr/lib/python3.10/site-packages/urllib3/connectionpool.py", line 415, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.10/http/client.py", line 1283, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.10/http/client.py", line 1329, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.10/http/client.py", line 1278, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.10/http/client.py", line 1038, in _send_output
self.send(msg)
File "/usr/lib/python3.10/http/client.py", line 976, in send
self.connect()
File "/usr/lib/python3.10/site-packages/docker/transport/unixconn.py", line 43, in connect
sock.connect(self.unix_socket)
urllib3.exceptions.ProtocolError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/docker/api/client.py", line 214, in _retrieve_server_version
return self.version(api_version=False)["ApiVersion"]
File "/usr/lib/python3.10/site-packages/docker/api/daemon.py", line 181, in version
return self._result(self._get(url), json=True)
File "/usr/lib/python3.10/site-packages/docker/utils/decorators.py", line 46, in inner
return f(self, *args, **kwargs)
File "/usr/lib/python3.10/site-packages/docker/api/client.py", line 237, in _get
return self.get(url, **self._set_request_timeout(kwargs))
File "/usr/lib/python3.10/site-packages/requests/sessions.py", line 602, in get
return self.request("GET", url, **kwargs)
File "/usr/lib/python3.10/site-packages/requests/sessions.py", line 589, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3.10/site-packages/requests/sessions.py", line 703, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3.10/site-packages/requests/adapters.py", line 501, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/taskcat/_cli.py", line 46, in main
cli.run()
File "/usr/lib/python3.10/site-packages/taskcat/_cli_core.py", line 316, in run
return getattr(command(), subcommand)(**args)
File "/usr/lib/python3.10/site-packages/taskcat/_cli_modules/test.py", line 167, in run
with test:
File "/usr/lib/python3.10/site-packages/taskcat/testing/base_test.py", line 58, in enter
raise ex
File "/usr/lib/python3.10/site-packages/taskcat/testing/base_test.py", line 55, in enter
self.run()
File "/usr/lib/python3.10/site-packages/taskcat/testing/_cfn_test.py", line 102, in run
LambdaBuild(self.config, self.config.project_root)
File "/usr/lib/python3.10/site-packages/taskcat/_lambda_build.py", line 36, in init
self._docker = docker.from_env()
File "/usr/lib/python3.10/site-packages/docker/client.py", line 96, in from_env
return cls(
File "/usr/lib/python3.10/site-packages/docker/client.py", line 45, in init
self.api = APIClient(*args, **kwargs)
File "/usr/lib/python3.10/site-packages/docker/api/client.py", line 197, in init
self._version = self._retrieve_server_version()
File "/usr/lib/python3.10/site-packages/docker/api/client.py", line 221, in _retrieve_server_version
raise DockerException(
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

[alexeygutkin]

managed to disable it lambda_packaging from config:

project:
  package_lambda: false

So now it can run in CI on k8s