not compatible with k8s > 1.22

[jiangpengcheng]

Reproduce:

1. use kind install k8s >= 1.22

   kind create cluster --image kindest/node:v1.22.0
   

2. Run function-mesh:

   make generate
   make install
   make run
   

expected results:

function-mesh run successfully

Actual results:

run is failed with below error:

E0610 17:09:52.868894 1962553 reflector.go:178] pkg/mod/k8s.io/client-go@v0.18.6/tools/cache/reflector.go:125: Failed to list *v1alpha1.Function: Internal error occurred: error resolving resource
E0610 17:09:52.909429 1962553 reflector.go:178] pkg/mod/k8s.io/client-go@v0.18.6/tools/cache/reflector.go:125: Failed to list *v1alpha1.Sink: Internal error occurred: error resolving resource
E0610 17:09:53.021113 1962553 reflector.go:178] pkg/mod/k8s.io/client-go@v0.18.6/tools/cache/reflector.go:125: Failed to list *v1alpha1.FunctionMesh: Internal error occurred: error resolving resource
E0610 17:09:53.062853 1962553 reflector.go:178] pkg/mod/k8s.io/client-go@v0.18.6/tools/cache/reflector.go:125: Failed to list *v1alpha1.Source: Internal error occurred: error resolving resource

---

found a similar issue in: kubernetes-sigs/hierarchical-namespaces#86

[jiangpengcheng]

it turned out to be caused by the invalid content of the caBundle field:

apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  name: functionmeshes.compute.functionmesh.io
spec:
  conversion:
    strategy: Webhook
    webhook:
      conversionReviewVersions:
        - v1
        - v1beta1
      clientConfig:
      # this is "\n" used as a placeholder, otherwise it will be rejected by the apiserver for being blank,
      # but we're going to set it later using the cert-manager (or potentially a patch if not using cert-manager)
        caBundle: Cg==
        service:
          namespace: system
          name: webhook-service
          path: /convert
          port: 443 # added this, used 443 bc it's the default from the k8s docs

And seems we don't use these webhook patches in the charts/function-mesh-operator/ directory, maybe we can remove them?

[freeznet]

@tpiperatgod could you please check pengcheng's comments?

[tpiperatgod]

I agree with @jiangpengcheng , because the functionmeshes cr does not use webhook.

[ilko-rbi]

and I can confirm that after removing the webhook definitions it works