Kubernetes Python client connection Issue

Question

I have setup Official Kubernetes Python Client (https://github.com/kubernetes-client/python).

I am running Python code to connect to a Kubernetes cluster and it's throwing an error:

urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='****', port=6443): Max retries exceeded with url: /api/v1/namespaces/default/pods (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 110] Connection timed out',))

Installed requirements:

cachetools        3.1.0 ,
certifi           2019.3.9 ,
chardet           3.0.4 , 
google-auth       1.6.3 ,
idna              2.8 ,
ipaddress         1.0.22 ,
kubernetes        10.0.0-snapshot ,
oauthlib          3.0.1 ,
pip               19.0.3 ,
pyasn1            0.4.5 ,
pyasn1-modules    0.2.4 ,
python-dateutil   2.8.0 ,
PyYAML            5.1 ,
requests          2.21.0 ,
requests-oauthlib 1.2.0 ,
rsa               4.0 ,
setuptools        41.0.0 ,
six               1.12.0 ,
urllib3           1.24.1 ,
websocket-client  0.56.0 ,
wheel             0.33.1

kubectl is working fine with the same config $HOME/.kube/config and same proxy settings.

Below is my code:

from kubernetes import client, config
config.load_kube_config()
v1 = client.CoreV1Api()
print("Listing pods with their IPs:")
ret = v1.list_pod_for_all_namespaces(watch=False)

Have you tried executing kubectl from the host the python is being executed? — Crou
– Crou, Commented Apr 18, 2019 at 11:01
@Crou, yes, kubeclt works fine on the same host the python code is being execute. The proxy setting same for both kubectl and python execution. I also tried kubernetes official golang client. It works fine. I am facing issue only with python setup. Is it problem with the python Version Iam using ? — Mahendra D
– Mahendra D, Commented Apr 19, 2019 at 5:42
Which version of the Python client and Kubernetes are you using? — char
– char, Commented Apr 19, 2019 at 7:57
@char Kubernetes Version: v1.11.8 ----------------------- Kubernetes-Python client version: 10.0.0 $pip show kubernetes Name: kubernetes Version: 10.0.0-snapshot Summary: Kubernetes python client ----------------------- — Mahendra D
– Mahendra D, Commented Apr 19, 2019 at 9:58

BartoszKP · Accepted Answer · 2019-05-07 13:53:32Z

4

In my case simply loading the config via load_kube_config didn't work as well. I ended up first running a proxy:

kubectl proxy --port=8888

and then changing the host using the Configuration object:

configuration = client.Configuration()
configuration.host = "localhost:8888"
api_client = client.CoreV1Api(client.ApiClient(configuration))

edited May 7, 2019 at 13:53

answered May 6, 2019 at 12:26

BartoszKP

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thedatastrategist · Accepted Answer · 2021-03-05 22:16:20Z

0

You need to specify the host ID for your client. You can find this in AI Platform Pipelines >> Settings. The code will look similar to this:

import kfp
client = kfp.Client(host='###########-dot-us-east1.pipelines.googleusercontent.com')

answered Mar 5, 2021 at 22:16

thedatastrategist

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