How should the organization achieve this objective?

For compliance reasons, an organization needs to ensure that in-scope PCI Kubernetes Pods reside on “in- scope” Nodes only. These Nodes can only contain the “in-scope” Pods.

How should the organization achieve this objective?
A . Add a nodeSelector field to the pod configuration to only use the Nodes labeled inscope: true.
B . Create a node pool with the label inscope: true and a Pod Security Policy that only allows the Pods to run on Nodes with that label.
C . Place a taint on the Nodes with the label inscope: true and effect NoSchedule and a toleration to match in the Pod configuration.
D . Run all in-scope Pods in the namespace “in-scope-pci”.

View Answer

Answer: A

Explanation:

nodeSelector is the simplest recommended form of node selection constraint. You can add the nodeSelector field to your Pod specification and specify the node labels you want the target node to have. Kubernetes only schedules the Pod onto nodes that have each of the labels you specify. => https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#nodeselector Tolerations are applied to pods. Tolerations allow the scheduler to schedule pods with matching taints. Tolerations allow scheduling but don’t guarantee scheduling: the scheduler also evaluates other parameters as part of its function. => https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/