dashboard: CRDs details retrieval broken

Hello, this is a cross-posted issue in Dashboard and Cert-Manager repositories. I’m pretty sure it’s a Cert-Manager CRD problem but I can’t be 100% sure. [Edit]This is a dashboard problem[/Edit]

Environment

Installation method: helm chart
Kubernetes version: 1.21.2/1.21.5
Dashboard version (v1.x is not supported. Use v2.0 or later.): 2.4.0
Operating system: Linux
Node.js version ('node --version' output): not relevant
Go version ('go version' output): not relevant

Steps to reproduce

I installed the Kubernetes Dashboard via the chart (5.0.4) using the pinnedCRDs option.

pinnedCRDs:
  - kind: customresourcedefinition
    name: certificates.cert-manager.io
    displayName: "Certificates"
    namespaced: true
  - kind: customresourcedefinition
    name: certificaterequests.cert-manager.io
    displayName: "Certificate Requests"
    namespaced: true
  - kind: customresourcedefinition
    name: challenges.acme.cert-manager.io
    displayName: "Challenges"
    namespaced: true
  - kind: customresourcedefinition
    name: orders.acme.cert-manager.io
    displayName: "Orders"
    namespaced: true

and I installed Cert-Manager via the chart (v1.6.1) with the option installCRDs: true.

Observed result

I get this:

By clicking on one of the menu items, the Dashboard FE makes a rest call to the Dashboard BE:

Example:

https://dashboard.example.com/api/v1/crd/certificates.cert-manager.io

The API responds this:

the server could not find the requested resource (get certificates.cert-manager.io)

The CRDs are correctly installed:

kubectl get crd | grep cert-manager.io
certificaterequests.cert-manager.io                         2021-11-19T13:24:18Z
certificates.cert-manager.io                                2021-11-19T13:24:18Z
challenges.acme.cert-manager.io                             2021-11-19T13:24:18Z
clusterissuers.cert-manager.io                              2021-11-19T13:24:18Z
issuers.cert-manager.io                                     2021-11-19T13:24:18Z
orders.acme.cert-manager.io                                 2021-11-19T13:24:18Z

I have checked all the involved Dashboard BE code and I don’t think there is anything wrong with it.

Ref:

• https://github.com/kubernetes/dashboard/blob/master/src/app/backend/errors/errors.go#L120
• https://github.com/kubernetes/dashboard/blob/master/src/app/backend/errors/handler.go#L106
• https://github.com/kubernetes/dashboard/blob/master/src/app/backend/handler/apihandler.go#L2548-L2553
• https://github.com/kubernetes/dashboard/blob/master/src/app/backend/resource/customresourcedefinition/types/types.go#L50-L60
• https://github.com/kubernetes/dashboard/blob/master/src/app/backend/handler/apihandler.go#L649-L652

All the CRDs of the dozen charts installed in the clusters work perfectly, I tried to completely remove Cert-Manager and reinstall it from scratch and nothing changes.

We have many clusters on both AWS EKS (K8s 1.21.5) and Azure AKS (K8s 1.21.2), all aligned and basically with the same software/charts installed. The problem occurs to everyone regardless.

So I assume the problem is on the Cert-Manager side. Can you help me in any way?

Expected result

I would like to be able to have the details of the Cert-Manager CRDs in the dashboard.

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