error: You must be logged in to the server - the server has asked for the client to provide credentials - “kubectl logs” command gives error

Question

We had setup kubernetes 1.10.1 on CoreOS with three nodes. Setup is successfull

NAME                STATUS    ROLES     AGE       VERSION
node1.example.com   Rea         


        

Answer 1

In my case, I experienced multiple errors while trying to run different kubectl commands like unauthorized, server has asked client to provide credentials, etc. After spending a few hours, I deduced that the sync to my cluster on cloud somehow gets messed up. So I run the following commands to refresh the configuration and it starts to work again:

1. Unset users:

   kubectl config unset users.

2. Remove cluster:

   kubectl config delete-cluster

3. Remove context:

   kubectl config delete-context

4. Default context:

   kubectl config use-context contexts

5. Get fresh cluster config from cloud:

   ibmcloud cs cluster config --cluster

Note: I am using ibmcloud for my cluster so last command could be different in your case