InformationEnsure that the controller-manager.conf file ownership is set to root:root.
The controller-manager.conf file is the kubeconfig file for the Controller Manager. You should set its file ownership to maintain the integrity of the file. The file should be owned by root:root.
SolutionRun the below command (based on the file location on your system) on the Control Plane node. For example,
chown root:root /etc/kubernetes/controller-manager.conf
By default, controller-manager.conf file ownership is set to root:root.