Kubernetes CKA sample exam question 105 with answer

Question
Taint the node node01 with key equals to env, value equals to dev and effect set to NoSchedule.

Now do necessary configuration so that ONLY pods with label tier=backend should get deployed to node node01.
Answer
Taint node:

kubectl taint node node01 env=dev:NoSchedule

Manifest for a sample pod shoud contain this snippet:

metadata:
  labels:
    tier: backend
spec:
  tolerations:
  - key: "env"
    operator: "Equal"
    value: "dev"
    effect: "NoSchedule"