An administrator has been asked to verify why the URL NAI dashboard is inaccessible. Which service could be impacted?

The NAI (Nutanix AIOps) web UI is published through the Kubernetes istio-ingressgateway. Istio’s control-plane (istiod) configures that gateway and routes all external HTTP/HTTPS traffic to the micro-services that render the dashboard. If the istio service mesh components are down or in an error state, the URL cannot be resolved and the dashboard becomes inaccessible, even though the other NAI pods may be healthy. Therefore the service most likely impacting access is istio.

B. metallb – Only advertises the LoadBalancer IP; NAI dashboard is still reachable via NodePort internally even if MetalLB is unhealthy.

C. prometheus – Collects metrics; it does not participate in HTTP routing to the dashboard.

D. kserve – Provides model-inference services; not involved in serving or proxying the dashboard UI.

1. Nutanix AIOps Deployment Guide v2.1, “Accessing the Dashboard via istio-ingressgateway,” pp. 12-14.

2. Nutanix AIOps Administration Guide v2.1, “Troubleshooting: Dashboard URL not reachable – verify istio pods,” p. 27, para 2.

3. Nutanix KB 12425 “NAI dashboard URL returns connection refused – istio ingress gateway down,” rev. 2023-05-18.

4. Nutanix Karbon Cluster Add-on Services Guide v2.5, §3.1 “Istio service mesh handles external traffic for web UIs,” p. 4.