helm: synCHRONIZE kserve models web app chart

[danish9039]

Pull Request Template for Kubeflow Manifests

✏️ Summary of Changes

This PR syncs experimental/helm/charts/kserve-models-web-app with the Kustomize models web app update merged in #3477.

It updates the Helm chart to render the current Kustomize shape:

• ghcr.io/kserve/models-web-app:0.18.0
• trainedmodels and trainedmodels/status RBAC resources
• VirtualService labels aligned with the updated Kustomize component output

This fixes the current Compare All Scenarios baseline failure for kserve-models-web-app, which is blocking unrelated Helm chart PRs because the workflow runs all registered comparison scenarios.

📦 Dependencies

Related to #3477.

This unblocks the shared Helm comparison workflow for unrelated Helm PRs such as #3478, #3479, and #3480.

🐛 Related Issues

Part of #3423.

✅ Contributor Checklist

• I have tested these changes with kustomize. See Installation Prerequisites.
• All commits are signed-off to satisfy the DCO check.
• I have considered adding my company to the adopters page to support Kubeflow and help the community, since I expect help from the community for my issue (see 1. and 2.).

Validation

helm lint experimental/helm/charts/kserve-models-web-app
./tests/helm_kustomize_compare.sh kserve-models-web-app base
./tests/helm_kustomize_compare.sh kserve-models-web-app kubeflow
./tests/helm_kustomize_compare_all.sh
git diff --check

All commands passed locally.

[github-actions]

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Updates the Helm chart for KServe Models Web App to a newer application release and extends permissions/resources used by the app.

Changes:

• Bump the default image tag and chart appVersion to v0.18.0.
• Extend ClusterRole permissions to include trainedmodels resources.
• Adjust Istio VirtualService labels and remove trailing whitespace.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
experimental/helm/charts/kserve-models-web-app/values.yaml	Updates default image tag used by the chart.
experimental/helm/charts/kserve-models-web-app/Chart.yaml	Updates chart appVersion to match the new app release.
experimental/helm/charts/kserve-models-web-app/templates/rbac/clusterrole.yaml	Grants RBAC access to trainedmodels and trainedmodels/status.
experimental/helm/charts/kserve-models-web-app/templates/istio/virtualservice.yaml	Changes labels applied to the VirtualService resource.

[danish9039]

@juliusvonkohout

[juliusvonkohout]

Thank you
/lgtm
/approve

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: juliusvonkohout

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