The client raise an exception if there is an endpoint slice with no endpoints #2423
Description
What happened (please include outputs or screenshots):
Have the endpoint slice with no endpoints (just deleted the deployment):
kubectl get endpointslices.discovery.k8s.io
NAME ADDRESSTYPE PORTS ENDPOINTS AGE
ac-arpserver-svc-8vmcx IPv4 8080,8890,8888 + 1 more... 10.244.0.141,10.244.0.142,10.244.0.143 11d
ac-backend-svc-87m26 IPv4 8000 10.244.0.103,10.244.0.105,10.244.0.139 11d
ac-configsync-svc-4dcgp IPv4 <unset> <unset> 11d
ac-monitoring-svc-nlmgq IPv4 9007 10.244.0.113,10.244.0.111,10.244.0.112 11d
cm-nginx-svc-lnqjx IPv4 8080 10.244.0.167,10.244.0.168,10.244.0.169 25h
kubernetes IPv4 8443 192.168.49.2 14d
Try to get a endpoint slice:
from kubernetes import client, config
config.load_incluster_config()
ep = client.DiscoveryV1Api().list_namespaced_endpoint_slice(namespace = "default", watch = False).items
Got the error:
Traceback (most recent call last):
File "/root/bug.py", line 5, in <module>
ep = client.DiscoveryV1Api().list_namespaced_endpoint_slice(namespace = "default", watch = False).items
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api/discovery_v1_api.py", line 828, in list_namespaced_endpoint_slice
return self.list_namespaced_endpoint_slice_with_http_info(namespace, **kwargs) # noqa: E501
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api/discovery_v1_api.py", line 947, in list_namespaced_endpoint_slice_with_http_info
return self.api_client.call_api(
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 348, in call_api
return self.__call_api(resource_path, method,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 192, in __call_api
return_data = self.deserialize(response_data, response_type)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 264, in deserialize
return self.__deserialize(data, response_type)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 303, in __deserialize
return self.__deserialize_model(data, klass)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 639, in __deserialize_model
kwargs[attr] = self.__deserialize(value, attr_type)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 280, in __deserialize
return [self.__deserialize(sub_data, sub_kls)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 303, in __deserialize
return self.__deserialize_model(data, klass)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/api_client.py", line 641, in __deserialize_model
instance = klass(**kwargs)
^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/models/v1_endpoint_slice.py", line 70, in __init__
self.endpoints = endpoints
^^^^^^^^^^^^^^
File "/usr/lib/python3.12/site-packages/kubernetes/client/models/v1_endpoint_slice.py", line 147, in endpoints
raise ValueError("Invalid value for `endpoints`, must not be `None`") # noqa: E501
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: Invalid value for `endpoints`, must not be `None`
What you expected to happen:
Expected to get something like this:
{
"addressType": "IPv4",
"endpoints": [],
"metadata": {
...
How to reproduce it (as minimally and precisely as possible):
Create a deployment, then a Service, then just kubectl delete -f deployment.yaml. Next try to run:
from kubernetes import client, config
config.load_incluster_config()
ep = client.DiscoveryV1Api().list_namespaced_endpoint_slice(namespace = "default", watch = False).items
Anything else we need to know?:
I fixed it by just commenting on the raise of the exception and passing [] to the endpoints in kubernetes/client/models/v1_endpoint_slice.py:
def endpoints(self, endpoints):
"""Sets the endpoints of this V1EndpointSlice.
endpoints is a list of unique endpoints in this slice. Each slice may include a maximum of 1000 endpoints. # noqa: E501
:param endpoints: The endpoints of this V1EndpointSlice. # noqa: E501
:type: list[V1Endpoint]
"""
if self.local_vars_configuration.client_side_validation and endpoints is None: # noqa: E501
#raise ValueError("Invalid value for `endpoints`, must not be `None`") # noqa: E501
endpoints = []
self._endpoints = endpoints
Environment:
- Kubernetes version (
kubectl version):
Client Version: v1.33.2
Kustomize Version: v5.6.0
Server Version: v1.33.1 - OS (e.g., MacOS 10.13.6):
Alpine Linux v3.22 - Python version (
python --version)
Python 3.12.11 - Python client version (
pip list | grep kubernetes)
kubernetes 32.0.1