The most efficient method using Nutanix Kubernetes Platform (NKP) is to leverage its fleet management capabilities. This is achieved by creating a Workspace, which acts as a logical grouping for managing multiple clusters as a single entity. The "Attach Cluster" feature is specifically designed to onboard existing CNCF-conformant Kubernetes clusters, such as the lightweight Kubernetes on the 30 edge devices, into the NKP management plane. Once attached, the administrator can use NKP's centralized tools for consistent application lifecycle management, policy enforcement, and monitoring across the entire fleet from a single interface.

A. Create a GitHub configuration, deploy it to the 30 edge devices, and configure them to use a GitHub account.

This describes a generic GitOps implementation but omits the crucial first step of bringing the clusters under NKP's centralized management. Attaching them to a workspace is required to manage GitOps at scale via NKP.

B. Create a script to automate the deployment to every edge device.

This is a manual, less scalable approach that bypasses the advanced fleet management, governance, and visibility features inherent to the NKP Ultimate license. It introduces maintenance overhead that NKP is designed to eliminate.

C. Ask the developers to delete the lightweight Kubernetes and deploy new Kubernetes clusters with NKP.

This is highly disruptive, time-consuming, and unnecessary. NKP is designed to manage existing third-party clusters, making a "rip and replace" strategy the least efficient option.

1. Nutanix Kubernetes Platform Administration Guide - Attaching a Cluster: "You can attach any CNCF-conformant Kubernetes cluster to NKP for centralized management. After you attach a cluster

you can manage the cluster from the NKP console." This directly supports using the "Attach Cluster" feature for existing clusters.

URL: https://portal.nutanix.com/page/documents/details?targetId=Nutanix-Kubernetes-Platform-Admin-Guide-v29:ecm-attach-cluster-t.html

2. Nutanix Kubernetes Platform Administration Guide - Workspaces: "A Workspace is a logical grouping of one or more Kubernetes clusters... Workspaces enable you to manage multiple clusters as a single entity

providing a single pane of glass for all your Kubernetes needs." This confirms that a Workspace is the correct construct for managing the fleet of 30 devices.

URL: https://portal.nutanix.com/page/documents/details?targetId=Nutanix-Kubernetes-Platform-Admin-Guide-v29:ecm-workspaces-c.html