DEV Community

Cover image for Securing Kubernetes: Adding a new hostname or IP address to Kubernetes API Server

Securing Kubernetes: Adding a new hostname or IP address to Kubernetes API Server

oluseyeo on November 28, 2023

$:# kubectl get ns Unable to connect to the server: x509: certificate is valid ... $:# Enter fullscreen mode Exit fullscreen mo...
Read full post
Collapse
 
midosh profile image
Ahmed Ramadan •

Thanks, it helped me a lot. I need to add a note:

If using Kubernetes < v1.15:

kubeadm config upload from-file --config kubeadm.yaml

For Kubernetes version >= v1.15:

kubeadm init phase upload-config kubeadm --config kubeadm.yaml