error in create_namespaced_job 'property' - object has no attribute 'swagger_types'

[simondh]

error in create_namespaced_job
'property' object has no attribute 'swagger_types'

I have traced this to an error in /kubernetes/client/api_client.py, sanitize_for_serialization, where the recursion calls this function to 'sanitize' a single entity of type Property. This falls through to the obj_dict comprehension, where it bombs as the object has no .swagger_type attibute.
I have fixed it locally with this change (2 lines in bold). The code that triggers the issue is attached
k8-python-error.txt. I can submit a pull request if desired.

    if isinstance(obj, dict):
        obj_dict = obj
    **elif isinstance(obj, property):
        return None**
    else:
        # Convert model obj to dict except
        # attributes `swagger_types`, `attribute_map`
        # and attributes which value is not None.
        # Convert attribute name to json key in
        # model definition for request.
        obj_dict = {obj.attribute_map[attr]: getattr(obj, attr)
                    for attr, _ in iteritems(obj.swagger_types)
                    if getattr(obj, attr) is not None}

[roycaihw]

/cc

[roycaihw]

thanks for the report!

I looked at k8-python-error.txt and I'm not sure if it's a bug in api_client.py

I pulled together a small example mimicking the k8s doc and it worked for me:

from kubernetes import client, config
from pprint import pprint

def main():
    config.load_kube_config()
    container = client.V1Container(name="pi", image="perl",
        command=["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"])
    template = client.V1PodTemplateSpec(spec=client.V1PodSpec(containers=[container], restart_policy="Never"))
    job = client.V1Job(api_version="batch/v1", kind="Job",
        metadata=client.V1ObjectMeta(name="pi"),
        spec=client.V1JobSpec(template=template, backoff_limit=4))
    batch_v1 = client.BatchV1Api()
    api_response = batch_v1.create_namespaced_job(body=job, namespace="default")
    pprint(api_response)

if __name__ == '__main__':
    main()

$ kubectl get jobs
NAME   COMPLETIONS   DURATION   AGE
pi     1/1           7s         9s

[roycaihw]

perhaps we could add some examples like ^ given job creation with the python client is painful

ref #589
https://blog.pythian.com/how-to-create-kubernetes-jobs-with-python/

cc @scottilee

[scottilee]

@roycaihw Added it to my list of examples to add and clean up. You can close this if you want.

[roycaihw]

/close

[k8s-ci-robot]

@roycaihw: Closing this issue.

In response to this:

/close

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