fix: remove conversion webhook

Author: raffis

go.mod

@@ -14,6 +14,7 @@ require (
 	go.uber.org/zap v1.26.0
 	golang.org/x/sync v0.4.0
 	k8s.io/api v0.28.3
+	k8s.io/apiextensions-apiserver v0.28.3
 	k8s.io/apimachinery v0.28.3
 	k8s.io/client-go v0.28.3
 	k8s.io/utils v0.0.0-20230726121419-3b25d923346b

go.sum

@@ -236,6 +236,7 @@ gotest.tools/v3 v3.5.0/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU=
 k8s.io/api v0.28.3 h1:Gj1HtbSdB4P08C8rs9AR94MfSGpRhJgsS+GF9V26xMM=
 k8s.io/api v0.28.3/go.mod h1:MRCV/jr1dW87/qJnZ57U5Pak65LGmQVkKTzf3AtKFHc=
 k8s.io/apiextensions-apiserver v0.28.3 h1:Od7DEnhXHnHPZG+W9I97/fSQkVpVPQx2diy+2EtmY08=
+k8s.io/apiextensions-apiserver v0.28.3/go.mod h1:NE1XJZ4On0hS11aWWJUTNkmVB03j9LM7gJSisbRt8Lc=
 k8s.io/apimachinery v0.28.3 h1:B1wYx8txOaCQG0HmYF6nbpU8dg6HvA06x5tEffvOe7A=
 k8s.io/apimachinery v0.28.3/go.mod h1:uQTKmIqs+rAYaq+DFaoD2X7pcjLOqbQX2AOiO0nIpb8=
 k8s.io/client-go v0.28.3 h1:2OqNb72ZuTZPKCl+4gTKvqao0AMOl9f3o2ijbAj3LI4=

main.go

@@ -32,6 +32,7 @@ import (
 	"go.uber.org/zap"
 	"golang.org/x/sync/errgroup"
 	corev1 "k8s.io/api/core/v1"
+	apiext "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions"
 	kerrors "k8s.io/apimachinery/pkg/api/errors"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
@@ -212,7 +213,17 @@ func main() {
 
 		switch gvk.Kind {
 		case "CustomResourceDefinition":
-			crds = append(crds, &obj)
+			crd := apiext.CustomResourceDefinition{}
+			_, _, _ = decoder.Decode(
+				resourceYAML,
+				nil,
+				&crd)
+
+			// Conversion Webhook is unsupported since there will be no pods running handling the conversion request
+			if crd.Spec.Conversion != nil {
+				crd.Spec.Conversion.Strategy = "None"
+			}
+			crds = append(crds, &crd)
 		case "Namespace":
 			namespaces[obj.GetName()] = &obj
 		default: