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docker_container: fix check mode for container creation #42380

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Aug 28, 2018
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18 changes: 18 additions & 0 deletions lib/ansible/module_utils/docker_common.py
Original file line number Diff line number Diff line change
Expand Up @@ -121,6 +121,24 @@ class APIError(Exception):
pass


def sanitize_result(data):
"""Sanitize data object for return to Ansible.

When the data object contains types such as docker.types.containers.HostConfig,
Ansible will fail when these are returned via exit_json or fail_json.
HostConfig is derived from dict, but its constructor requires additional
arguments. This function sanitizes data structures by recursively converting
everything derived from dict to dict and everything derived from list (and tuple)
to a list.
"""
if isinstance(data, dict):
return dict((k, sanitize_result(v)) for k, v in data.items())
elif isinstance(data, (list, tuple)):
return [sanitize_result(v) for v in data]
else:
return data


class DockerBaseClass(object):

def __init__(self):
Expand Down
6 changes: 3 additions & 3 deletions lib/ansible/modules/cloud/docker/docker_container.py
Original file line number Diff line number Diff line change
Expand Up @@ -607,7 +607,7 @@
import shlex

from ansible.module_utils.basic import human_to_bytes
from ansible.module_utils.docker_common import HAS_DOCKER_PY_2, HAS_DOCKER_PY_3, AnsibleDockerClient, DockerBaseClass
from ansible.module_utils.docker_common import HAS_DOCKER_PY_2, HAS_DOCKER_PY_3, AnsibleDockerClient, DockerBaseClass, sanitize_result
from ansible.module_utils.six import string_types

try:
Expand Down Expand Up @@ -1780,7 +1780,7 @@ def absent(self):
self.container_remove(container.Id)

def fail(self, msg, **kwargs):
self.client.module.fail_json(msg=msg, **kwargs)
self.client.module.fail_json(msg=msg, **sanitize_result(kwargs))

def _output_logs(self, msg):
self.client.module.log(msg=msg)
Expand Down Expand Up @@ -2095,7 +2095,7 @@ def main():
client.module.fail_json(msg="'auto_remove' is not compatible with the 'docker-py' Python package. It requires the newer 'docker' Python package.")

cm = ContainerManager(client)
client.module.exit_json(**cm.results)
client.module.exit_json(**sanitize_result(cm.results))


if __name__ == '__main__':
Expand Down