A Platform Engineer is attaching existing Kubernetes clusters to NKP, but a particular Kubernetes Amazon...

When attaching an Amazon EKS cluster to NKP for fleet management, persistent volume (PV) errors during application deployments often indicate issues with storage configuration. The NKPA course identifies a common cause: the absence of a default StorageClass. Kubernetes requires a default StorageClass to automatically provision PVs for PersistentVolumeClaims (PVCs) when none is specified. Without a default, applications fail to bind PVCs, resulting in deployment errors.

The Nutanix Cloud Native (NCP-CN) 6.10 Study Guide states: “For attached EKS clusters, ensure a default StorageClass is configured to support dynamic provisioning of persistent volumes. Review existing StorageClasses and set one as default using the storageclass.kubernetes.io/is-default-class annotation.” The engineer should run kubectl get storageclass to list available StorageClasses, verify their configurations, and set one as default by patching it with kubectl patch storageclass -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'. In EKS, the default StorageClass is typically backed by Amazon EBS (e.g., gp2 or gp3).

Incorrect Options:

A. The storage appliance is having issues: This assumes a hardware issue, which is not indicated by PV errors. The NKPA course suggests checking Kubernetes configurations first.

B. There is no compatible storage: EKS supports EBS and EFS, which are compatible with NKP. The issue is likely configuration, not compatibility.

D. There could be a misconfiguration in the ConfigMap: ConfigMaps are not directly related to PV provisioning. The NKPA course points to StorageClass issues for PV errors.