_get_raw_response_socket fails with AttributeError: 'NoneType' object has no attribute 'raw'

[mhrabovcin]

docker-py version: 3.7.0 python version: 3.6.6 docker version:

10:04:15 Client:
10:04:15  Version:           18.09.1
10:04:15  API version:       1.39
10:04:15  Go version:        go1.10.6
10:04:15  Git commit:        4c52b90
10:04:15  Built:             Wed Jan  9 19:35:23 2019
10:04:15  OS/Arch:           linux/amd64
10:04:15  Experimental:      false
10:04:15 
10:04:15 Server: Docker Engine - Community
10:04:15  Engine:
10:04:15   Version:          18.09.1
10:04:15   API version:      1.39 (minimum version 1.12)
10:04:15   Go version:       go1.10.6
10:04:15   Git commit:       4c52b90
10:04:15   Built:            Wed Jan  9 19:02:44 2019
10:04:15   OS/Arch:          linux/amd64
10:04:15   Experimental:     false

Code

        # Create database if not exists
        exec_id = self._cli.exec_create(
            container=self.container_name,
            cmd=(
                "bash -c './cockroach sql --insecure"
                " -e \"CREATE DATABASE IF NOT EXISTS {database_name};\"'".format(
                    database_name=database_name,
                )
            ),
        )
        res = self._cli.exec_start(exec_id=exec_id)
        assert self._cli.exec_inspect(exec_id=exec_id)['ExitCode'] == 0, res

Failure

    tests/upgrade/test_cockroach_upgrade.py:51:
    _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
    tests/containers/cockroach.py:125: in import_database_from_backup_file
        res = self._cli.exec_start(exec_id=exec_id)
    /venv/lib/python3.6/site-packages/docker/utils/decorators.py:19: in wrapped
        return f(self, resource_id, *args, **kwargs)
    /venv/lib/python3.6/site-packages/docker/api/exec_api.py:168: in exec_start
        return self._read_from_socket(res, stream, tty=tty, demux=demux)
    /venv/lib/python3.6/site-packages/docker/api/client.py:395: in _read_from_socket
        socket = self._get_raw_response_socket(response)
    _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
    self = <docker.api.client.APIClient object at 0x7f9e77f84588>, response = <Response [101]>
        def _get_raw_response_socket(self, response):
            self._raise_for_status(response)
            if self.base_url == "http+docker://localnpipe":
                sock = response.raw._fp.fp.raw.sock
            elif self.base_url.startswith('http+docker://ssh'):
                sock = response.raw._fp.fp.channel
            elif six.PY3:
    >           sock = response.raw._fp.fp.raw
    E           AttributeError: 'NoneType' object has no attribute 'raw'
    /venv/lib/python3.6/site-packages/docker/api/client.py:312: AttributeError

[silvin-lubecki]

Hello @mhrabovcin , thank you for filling this issue. As far as I understand your issue, you have an error one of your test case. Can you fill the issue with more context? For example looking at the code you pasted, we can't see how the cli object was initialized. Thank you!

[mhrabovcin]

The initialization of the client: https://github.com/dcos/bouncer/blob/4beab0338e6859508d58f254d52942cd7bdd9fbd/tests/containers/containerbase.py#L33-L55

The code that is interacting with library: https://github.com/dcos/bouncer/blob/4beab0338e6859508d58f254d52942cd7bdd9fbd/tests/containers/cockroach.py

[simonferquel]

@rumpl or @ulyssessouza PTAL

[ShedPlant]

I have seen a similar problem:

==================================== ERRORS ====================================
_________ ERROR at teardown of my_proprietary_test __________

    @pytest.fixture(scope="session", autouse=True)
    def docker_logs():
        client = docker.from_env()
        threads = []

        for container in client.containers.list():
            name = container.name or container.id
            monitor = CmdStdOutThreadedPrinter(container, name)
            threads.append(monitor)
            monitor.start_process()

        yield None
        sleep(2)

        for thread in threads:
>           thread.stop()

test/system_tests/conftest.py:99: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
test/system_tests/threaded_stdout_printer.py:54: in stop
    sock = self.client.api._get_raw_response_socket(self.logs._response)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <docker.api.client.APIClient object at 0x7f285c597e50>
response = <Response [200]>

    def _get_raw_response_socket(self, response):
        self._raise_for_status(response)
        if self.base_url == "http+docker://localnpipe":
            sock = response.raw._fp.fp.raw.sock
        elif self.base_url.startswith('http+docker://ssh'):
            sock = response.raw._fp.fp.channel
        else:
>           sock = response.raw._fp.fp.raw
E           AttributeError: 'NoneType' object has no attribute 'raw'

/opt/pysetup/.venv/lib/python3.9/site-packages/docker/api/client.py:324: AttributeError