How can we get the kube scheduler logs and the controller manager logs on a k8s . . .

Kubernetes
#1

Nimesh Kumar:
how can we get the kube scheduler logs and the controller manager logs on a k8s cluster?

#2

Justin Toh:
I’m guessing it’s

kubectl logs --selector component=kube-scheduler
kubectl logs --selector component=kube-controller-manager

If you want both at the same time:

kubectl logs --prefix --selector 'component in (kube-scheduler, kube-controller-manager)'
#3

Nimesh Kumar:
Thanks @Justin Toh

How do we get the worker node or a master cluster?

What do we do in case we dont have jounalctl on the cluster?

#4

Justin Toh:
Are these follow up questions to the previous question on logs or totally unrelated?

#5

Justin Toh:
1A. If you just want to list master nodes:

kubectl get nodes -l <http://node-role.kubernetes.io/master|node-role.kubernetes.io/master>

1B. If you just want to list worker nodes:

kubectl get nodes -l <http://node-role.kubernetes.io/master!=|node-role.kubernetes.io/master!=>
  1. Haven’t learnt this yet lol
#6

Nimesh Kumar:
Thanks @Justin Toh