Kubernetes taints and tolerations

Taints allow a node to repel a set of pods, in opposite to Node Affinity

• https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/

• kubectl taint

• 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.

Example

taints:
   - key: eks.amazonaws.com/compute-type
     value: fargate
     effect: NoSchedule

spec:
  providerID: aws:///us-east-1a/i-085c2fcaf46d41c3f
  taints:
    - key: dedicated
      value: gpuGroup
      effect: NoSchedule

Activities

• Read https://www.mankier.com/1/kubectl-taint

Related

• tolerations:
• Node affinity

See also

• Kubernetes taints and tolerations, NO_SCHEDULE, NoExecute, module.eks_managed_node_group
• Kubernetes taints: kubectl taint