kyverno/pkg/utils/kube/crd.go

package kube

import (
	"context"

	apiserver "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

// CRDsInstalled checks if the Kyverno CRDs are installed or not
func CRDsInstalled(apiserverClient apiserver.Interface) bool {
	kyvernoCRDs := []string{
		"admissionreports.kyverno.io",
		"backgroundscanreports.kyverno.io",
		"cleanuppolicies.kyverno.io",
		"clusteradmissionreports.kyverno.io",
		"clusterbackgroundscanreports.kyverno.io",
		"clustercleanuppolicies.kyverno.io",
		"clusterpolicies.kyverno.io",
		"clusterpolicyreports.wgpolicyk8s.io",
		"policies.kyverno.io",
		"policyexceptions.kyverno.io",
		"policyreports.wgpolicyk8s.io",
		"updaterequests.kyverno.io",
	}
	for _, crd := range kyvernoCRDs {
		if !isCRDInstalled(apiserverClient, crd) {
			return false
		}
	}
	return true
}

func isCRDInstalled(apiserverClient apiserver.Interface, kind string) bool {
	_, err := apiserverClient.ApiextensionsV1().CustomResourceDefinitions().Get(context.Background(), kind, metav1.GetOptions{})
	return err == nil
}