NoExecute

A taint consists of a key, value, and effect. As an argument here, it is expressed as key=value:effect. The effect must be NoSchedule, PreferNoSchedule or NoExecute.

node.kubernetes.io/unreachable:NoExecute 
tolerations:

See also

• node.kubernetes.io: /instance-type, /unreachable, node.kubernetes.io/not-ready, /disk-pressure
• Kubernetes taints and tolerations, NO_SCHEDULE, NoExecute, module.eks_managed_node_group