kubectl freeze with kubelogin

Problem

When trying to login with kubelogin

kubectl --user=oidc  cluster-info

kubectl may freeze.

Solution

kubelogin needs the local port 8000 or 18000 to start a server to get back the authorization code.

If the ports are used, the application may freeze.

• Check that the ports are not already used and kills the process.
• We can’t change the port because they are registered and mandatory for the oauth flow.