helm: add Kubeflow Dashboard chart

[danish9039]

Summary of Changes

Adds the Kubeflow Dashboard Helm wrapper chart as a co-located application chart under applications/dashboard/helm.

This PR keeps the first reviewable slice focused on Kustomize parity for the customer-facing Dashboard platform install path. It retains only the platform scenario, which maps to applications/dashboard/overlays/istio, and removes the exploratory split Dashboard CI scenarios from the chart PR scope.

The PR also updates Helm/Kustomize comparison wiring to the new chart path, uses Helm 4 in the comparison workflow, and extends scripts/synchronize-dashboard-manifests.sh so future Dashboard upstream syncs also refresh the Helm chart appVersion and regenerated static platform template.

The chart is placed under applications/dashboard/helm because Dashboard is an official application component, and this is the application-side equivalent of placing common wrappers under common/<component>/helm. The sync script owns applications/dashboard/upstream, while the Helm chart lives as a sibling under applications/dashboard/helm.

Dependencies

Conceptually follows the foundation and wrapper chart PRs for runtime installation order:

• helm: add Kubeflow foundation charts #3468
• helm: add cert-manager wrapper chart #3470
• helm: add Istio wrapper chart #3478
• helm: add oauth2-proxy wrapper chart #3479
• helm: add Dex wrapper chart #3480

Render parity validation for this PR is self-contained.

Related Issues

Part of the Project 5 Helm chart work.

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.).

Synchronization Flow

The platform overlay is rendered once, then every resource is validated and assigned to a deterministic component payload.

flowchart TD
    A["Kustomize<br/>platform overlay"] --> B["One complete<br/>Kustomize build"]
    B --> C["Python generator<br/>parses YAML"]
    C --> D["Validate and classify<br/>every resource"]
    D --> E["Central Dashboard payload"]
    D --> F["PodDefaults CRD<br/>and resource payloads"]
    D --> G["Profile Controller CRD<br/>and resource payloads"]
    E --> H["Small Helm templates<br/>using .Files.Get"]
    F --> H
    G --> H
    H --> I["Same rendered<br/>Kubernetes resources"]

Loading

Relevant File Structure

applications/dashboard/
├── upstream/centraldashboard/
├── upstream/poddefaults-webhooks/
├── upstream/profile-controller/
├── overlays/istio/
└── helm/
    ├── kustomize/kustomization.yaml
    ├── manifests/       # five generated payloads
    ├── templates/
    ├── ci/values-platform.yaml
    ├── Chart.yaml
    ├── values.yaml
    └── README.md

Installation, supported scenarios, and chart configuration are documented in applications/dashboard/helm/README.md.

Validation

helm lint applications/dashboard/helm
./tests/helm_kustomize_compare.sh kubeflow-dashboard platform
./tests/helm_kustomize_compare_all.sh kubeflow-dashboard
bash -n scripts/synchronize-dashboard-manifests.sh tests/helm_kustomize_compare.sh tests/helm_kustomize_compare_all.sh
python3 -m py_compile tests/helm_kustomize_compare.py
git diff --check

Also verified with temporary Helm v4.2.2:

helm lint applications/dashboard/helm
./tests/helm_kustomize_compare_all.sh kubeflow-dashboard

[github-actions]

Welcome to the Kubeflow Community Distribution Repository

Thanks for opening your first PR. Your contribution means a lot to the Kubeflow community.

Before making more PRs:
Please ensure your PR follows our Contributing Guide.
Please also be aware that many components are synchronized from upstream via the scripts in /scripts.
So in some cases you have to fix the problem in the upstream repositories first, but you can use a PR against kubeflow/community-distribution to test the platform integration.

Community Resources:

• CNCF Slack channels: https://www.kubeflow.org/docs/about/community/#kubeflow-slack-channels
• Community meetings: https://www.kubeflow.org/docs/about/community/

Thanks again for helping to improve Kubeflow.

[Copilot]

Pull request overview

Adds a co-located Helm wrapper chart for the Kubeflow Dashboard application and wires it into the existing Helm↔Kustomize render-parity validation and synchronization flow.

Changes:

• Introduce applications/dashboard/helm as a static, scenario-gated Helm wrapper chart rendering the current Dashboard overlays/istio (“platform”) install.
• Extend Helm/Kustomize comparison scripts to include the new kubeflow-dashboard component and scenario.
• Update the Dashboard synchronization script to also refresh the Helm chart appVersion and regenerated static platform.yaml template; update the comparison workflow to install Helm 4.

Reviewed changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tests/helm_kustomize_compare.sh	Adds kubeflow-dashboard component wiring for parity comparison.
tests/helm_kustomize_compare.py	Allows kubeflow-dashboard as a supported component in the comparison tool.
tests/helm_kustomize_compare_all.sh	Adds kubeflow-dashboard to the “all” comparison matrix.
scripts/synchronize-dashboard-manifests.sh	Extends upstream sync automation to also refresh Helm chart metadata and static template output.
applications/dashboard/helm/values.yaml	Defines default chart values (scenario selection).
applications/dashboard/helm/templates/validate.yaml	Adds scenario validation to fail fast on unsupported values.
applications/dashboard/helm/templates/platform.yaml	Provides the static Kustomize-parity rendered payload for the “platform” scenario.
applications/dashboard/helm/README.md	Documents install shape, caveats, and parity validation commands.
applications/dashboard/helm/ci/values-platform.yaml	CI fixture values for the “platform” scenario.
applications/dashboard/helm/Chart.yaml	Introduces the Dashboard wrapper chart metadata.
.github/workflows/helm-kustomize-comparison.yml	Triggers parity CI for Dashboard changes and installs Helm v4.2.2 via setup action.

[Copilot]

Pull request overview

Copilot reviewed 10 out of 11 changed files in this pull request and generated 1 comment.

[juliusvonkohout]

You are missing the synchronization script changes

[Copilot]

Pull request overview

Copilot reviewed 10 out of 11 changed files in this pull request and generated 3 comments.

[google-oss-prow]

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[danish9039]

The synchronization script now updates Chart.yaml and regenerates templates/platform.yaml through the shared atomic helper.

[danish9039]

@juliusvonkohout for review

[Copilot]

Pull request overview

Copilot reviewed 24 out of 25 changed files in this pull request and generated 3 comments.

[juliusvonkohout]

Suggested change

	self.assertEqual(selector.find_upstream_scripts([path]), EXPECTED_SCRIPTS)
	self.assertEqual(selector.find_upstream_scripts([path]), EXPECTED_SCRIPTS)

[Copilot]

Pull request overview

Copilot reviewed 24 out of 25 changed files in this pull request and generated 1 comment.

[juliusvonkohout]

Is this a duplication ?

[juliusvonkohout]

How can i disable for example the default login flow ? what are the things i can easily configure ?