[Feature] [KubeRay Dashboard] hidden the grafana dashboard if link is not provided

[CheyuWu]

Why are these changes needed?

Spec

In the KubeRay Dashboard, the Grafana icon in the cluster table currently has no functionality if the Grafana link is not configured. This may confuse users since the icon appears clickable but leads nowhere.

Expected Behavior

• If the Grafana link is not provided, the Grafana icon should be hidden from the dashboard table.

• If the Grafana link is configured, the icon should remain visible and functional.

Manual Testing

Launch api server and frontend server

$ go run cmd/main.go -httpPortFlag :31888 -cors-allow-origin=*

$ yarn dev

Upload the rayjob sample

$ kubectl apply -f ray-operator/config/samples/ray-job.sample.yaml

Check the rayjob dashboard

Check the raycluster dashboard

The Grafana Dashboard Icon is not displayed

Related issue number

Closes #4093

Checks

• I've made sure the tests are passing.
• Testing Strategy
  • Unit tests
  • Manual tests
  • This PR is not tested :(

[CheyuWu]

Hi @han-steve, could you please take a look?

[Copilot]

Pull Request Overview

This PR implements conditional visibility for the Grafana dashboard icon in the KubeRay Dashboard. The icon is now hidden when no Grafana link is configured, improving user experience by avoiding non-functional UI elements.

• Adds conditional rendering to hide Grafana icons when links are not provided
• Affects both the Jobs table and Clusters table components
• Prevents user confusion from non-functional clickable elements

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
dashboard/src/components/JobsTable/JobsTable.tsx	Wraps Grafana icon with conditional check for rayGrafanaDashboardLink
dashboard/src/components/ClustersTable/ClustersTable.tsx	Wraps Grafana icon with conditional check for rayGrafanaDashboardLink

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}