I am new to the kubernetes world and I am currently stuck with figuring out how to enable endpoints for kube-controller-manager & kube-scheduler. In some future, I'll be using the helm kube-prometheus-stack to scrape those endpoints for metrics. However, for now what would be the right approach to set up those endpoints?
$ kubectl get ep -n kube-system
NAME ENDPOINTS AGE
kube-controller-manager <none> 105d
kube-scheduler <none> 105d
No need to create endpoints for kube-controller-manage and kube-scheduler because they use hostNetwork and uses ports 10257 and 10259 respectively.
you can verify it checking the manifests "/etc/kubernetes/manifests/" and netstat -nltp or ss -nltp on masternode
ss -nltp | grep kube
LISTEN 0 128 127.0.0.1:10257 0.0.0.0:* users:(("kube-controller",pid=50301,fd=7))
LISTEN 0 128 127.0.0.1:10259 0.0.0.0:* users:(("kube-scheduler",pid=50400,fd=7))