python: `create_namespaced_horizontal_ pod_autoscaler` throws ValueError: Invalid value for `conditions`, must not be `None`

File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/apis/autoscaling_v2beta1_api.py", line 60, in create_namespaced_horizontal_pod_autoscaler                                                                                                                                                
    (data) = self.create_namespaced_horizontal_pod_autoscaler_with_http_info(namespace, body, **kwargs)                                                       
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/apis/autoscaling_v2beta1_api.py", line 151, in create_namespaced_horizontal
_pod_autoscaler_with_http_info                                                                                                                                
    collection_formats=collection_formats)                                                                                                                    
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/api_client.py", line 334, in call_api                                      
    _return_http_data_only, collection_formats, _preload_content, _request_timeout)                                                                           
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/api_client.py", line 176, in __call_api                                    
    return_data = self.deserialize(response_data, response_type)                                                                                              
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/api_client.py", line 249, in deserialize                                   
    return self.__deserialize(data, response_type)                                                                                                            
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/api_client.py", line 289, in __deserialize                                 
    return self.__deserialize_model(data, klass)                                                                                                              
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/api_client.py", line 633, in __deserialize_model                           
    kwargs[attr] = self.__deserialize(value, attr_type)                                                                                                       
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/api_client.py", line 289, in __deserialize                                 
    return self.__deserialize_model(data, klass)                                                                                                              
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/api_client.py", line 635, in __deserialize_model                           
    instance = klass(**kwargs)                                                                                                                                
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/models/v2beta1_horizontal_pod_autoscaler_status.py", line 64, in __init__  
    self.conditions = conditions                                                                                                                              
  File "/virutalenv/lib/python3.6/site-packages/kubernetes/client/models/v2beta1_horizontal_pod_autoscaler_status.py", line 95, in conditions
    raise ValueError("Invalid value for `conditions`, must not be `None`")                                                                                    
ValueError: Invalid value for `conditions`, must not be `None`

code to reproduce -

from kubernetes import client
k8s_api = client.AutoscalingV2beta1Api()
k8s_api.create_namespaced_horizontal_pod_autoscaler(namespace='default',
body=client.V2beta2HorizontalPodAutoscaler(
        api_version='autoscaling/v2beta2',
        kind='HorizontalPodAutoscaler',
        metadata=client.V1ObjectMeta(
            name=scaler_name
        ),
        spec=client.V2beta2HorizontalPodAutoscalerSpec(
            scale_target_ref=client.V2beta2CrossVersionObjectReference(
                api_version=version1,
                kind=scalable_object,
                name=app_name
            ),
            min_replicas=N1,
            max_replicas=N2,
            metrics=[client.V2beta2MetricSpec(
                type='Object',
                object=client.V2beta2ObjectMetricSource(
                    metric=client.V2beta2MetricIdentifier(
                        name=metric_name
                    ),
                    described_object=client.V2beta2CrossVersionObjectReference(
                        api_version=version2,
                        kind=scalable_object,
                        name=app_name
                    ),
                    target=client.V2beta2MetricTarget(
                        type=target_type,
                        value=target_value
                    )
                ),

            )]
        ),
    )

This returns the exception i posted above, though it create the hpa. status is optional in V2beta2HorizontalPodAutoscaler, why does this exception occur and what is the work around for this?

About this issue

Original URL
State: closed
Created 4 years ago
Reactions: 3
Comments: 15 (3 by maintainers)

Most upvoted comments

Still facing the issue using kubernetes-12.0.1 and kubernetes v 1.17, any updates?

+10

abhishekdhotre on Mar 29, 2021

This issue can also be skipped by catching the ValueError exception and checking for the error:

except ValueError as exception:
    if str(exception) == 'Invalid value for `conditions`, must not be `None`':
        logger.info('Skipping invalid \'conditions\' value...')
    else:
        raise exception

fwiw, I’m also see this on k8s 1.17 on EKS with a HorizontalPodAutoscaler on autoscaling/v2beta2 (deployed from a YAML file via kubernetes.utils.create_from_dict).

tdmalone on Jul 23, 2020

/remove-lifecycle stale

Getting the issue with current version running on k8s 1.16 on eks. Any status on the fix?

daemur on Jul 20, 2020