make install fails to find kustomization.yaml

[mikemorris]

What happened:

make install
kubectl kustomize config/crd/v1alpha2 | kubectl apply -f -
Error: unable to find one of 'kustomization.yaml', 'kustomization.yml' or 'Kustomization' in directory 'gateway-api/config/crd/v1alpha2'
error: no objects passed to apply
make: *** [crd] Error 1

What you expected to happen:
make install to pick up the kustomization.yaml file from the parent directory, config/crd, and make install to complete successfully.

I'm unsure if this file should be symlinked into the v1alpha* directories, distinct copies maintained within each, or if some CLI argument to look for it a level above is missing.

How to reproduce it (as minimally and precisely as possible):
make install

Anything else we need to know?:
gateway-api master branch, 08ffbed

kustomize version
{Version:kustomize/v4.4.0 GitCommit:63ec6bdb3d737a7c66901828c5743656c49b60e1 BuildDate:2021-09-27T16:13:36Z GoOs:darwin GoArch:amd64}

[hbagdi]

We will have to figure out a better way to "kustomize" our CRD manifests but for now, I've opened up #915 since I expect implementations that install v1alpha1 and v1alpha2 at the same time to be less common.