Kubectl error couldn't get current server API group list

General Discussions
1

Good afternoon everybody!

I am in need of assistance with my kubernetes clusters.

Everything was fine yesterday, but today after I updated my ubuntu I can’t get to connect to my working space to my clusters.

Whenever I try to get the ‘kubectl get pods’, it appears the following message:

E0706 15:32:33.989368 635117 memcache.go:265] couldn’t get current server API group list: Get “https://0.0.0.0:33341/api?timeout=32s”: EOF

Any advice in how to solve this issue?

Cluster information:

Kubernetes version: 1.27
Cloud being used: (put bare-metal if not on a public cloud) bare-metal
Host OS: Ubuntu 20.04

2

Hi,
use same credentials, like what ever credentials you’re used provisioning the cluster using the terraform
same credentials use where ever you installed kubectl. Same issue i was faced and resolved today.
Thank you

3

Hello ramsiva_k!

Thanks in advance for your reply.

Sorry, but I couldn’t understand what you mean by credentials… Can you be more specific?

I’ve seen that if I completely purge my installation of the docker, kubectl and reinstall it will start working again. But I can’t lose meu deployments

4

Hi, what type of Kubernetes cluster have you installed? k3s?

5

I get the same error with minikube

6

Yes, I am using k3s to manage the cluster.

However, I manage to work around the problem by completely removing the kubernetes and all it’s packages.

I had to do all the work again…A few nights without sleep…hehe

But thank you all for your trouble.

7

One suggestion for the future, use the verbose flag to get the real details of the error

Theres a lot more info there that you can use to troubleshoot.

1 Like
8

I just ran into this issue and discovered that my k8s certificate expired.
yq -r '.users[0].user."client-certificate-data"' <.kube/config | base64 -d | openssl x509 -text
[0] being the first user in your kube config file.

9

Hello Duke!

Thanks for the reply, I should have looked for it…