Taint and Toleration

Get taints from node

kubectl get nodes NODE -o yaml | yq .spec.taints

kubectl get nodes -o yaml | yq '.items[].spec.taints'
# kubectl get nodes -o json | jq '.items[].spec.taints'

kubectl get nodes -o='custom-columns=NodeName:.metadata.name,TaintKey:.spec.taints[*].key,TaintValue:.spec.taints[*].value,TaintEffect:.spec.taints[*].effect'

Ignore KEY=LABEL labeled pod to be scheduled in specified NODE

kubectl taint nodes NODE KEY=LABEL:NoSchedule

Remove taint

kubectl taint nodes NODE KEY=LABEL:NoSchedule-

NODE=master
kubectl taint nodes $NODE node-role.kubernetes.io/control-plane:NoSchedule-

Taint toleration

spec:
  tolerations:
  - key: "node-role.kubernetes.io/control-plane"
    operator: "Exists"
    effect: "NoSchedule"