No stack trace resulting in ContainerError when tty is enabled

[damienrj]

I am having an issue where I don't get the error responsible for the ContainerError unless I turn off tty. Is the expected behavior?

With tty enabled:

ContainerError: Command '['train']' in image 'conductor:latest' returned non-zero exit status 1:

With tty disabled:

ContainerError: Command '['train']' in image 'conductor:latest' returned non-zero exit status 1: Traceback (most recent call last):
...
long stack trace
...
    raise ValueError('Config not specified')
ValueError: Config not specified

[jcsirot]

Thank you for your report @damienrj
Please could you provided a short code snippet triggering the issue.

[damienrj]

@jcsirot Sure
Dockerfile:

FROM python:2.7.15-slim-jessie
RUN touch script.py
RUN echo "raise Exception('test')" >> script.py
ENTRYPOINT [ "python" ]

Code:

import docker
client = docker.from_env()
client.containers.run('test:latest', command='script.py', tty=True, stderr=True, stdout=True)

Only see the ContainerError

In [19]: import docker
    ...: client = docker.from_env()
    ...: client.containers.run('test:latest', command='script.py', tty=True, stderr=True, stdout=True)
    ...:
---------------------------------------------------------------------------
ContainerError                            Traceback (most recent call last)
<ipython-input-19-b88d242687dc> in <module>()
      1 import docker
      2 client = docker.from_env()
----> 3 client.containers.run('test:latest', command='script.py', tty=True, stderr=True, stdout=True)

/usr/local/lib/python2.7/site-packages/docker/models/containers.pyc in run(self, image, command, stdout, stderr, remove, **kwargs)
    812         if exit_status != 0:
    813             raise ContainerError(
--> 814                 container, exit_status, command, image, out
    815             )
    816

ContainerError: Command 'script.py' in image 'test:latest' returned non-zero exit status 1:

import docker
client = docker.from_env()
client.containers.run('test:latest', command='script.py', tty=False, stderr=True, stdout=True)

Can see the Exception: test

In [21]: import docker
    ...: client = docker.from_env()
    ...: client.containers.run('test:latest', command='script.py', tty=False, stderr=True, stdout=True)
    ...:
---------------------------------------------------------------------------
ContainerError                            Traceback (most recent call last)
<ipython-input-21-38e8d31dafd3> in <module>()
      1 import docker
      2 client = docker.from_env()
----> 3 client.containers.run('test:latest', command='script.py', tty=False, stderr=True, stdout=True)

/usr/local/lib/python2.7/site-packages/docker/models/containers.pyc in run(self, image, command, stdout, stderr, remove, **kwargs)
    812         if exit_status != 0:
    813             raise ContainerError(
--> 814                 container, exit_status, command, image, out
    815             )
    816

ContainerError: Command 'script.py' in image 'test:latest' returned non-zero exit status 1: Traceback (most recent call last):
  File "script.py", line 1, in <module>
    raise Exception('test')
Exception: test