chore: add make uninstall target

Author: Andrew Rudoi

docs/book/src/quick-start.md

@@ -196,6 +196,14 @@ privileges or be logged in as admin. See [Prerequisites for using Kubernetes RBA
 
 </aside> 
 
+## Uninstall CRDs
+
+To delete your CRDs from the cluster:
+
+```bash
+make uninstall
+```
+
 ## Next Step 
 
 Now, follow up the [CronJob tutorial][cronjob-tutorial] to better understand how it works by developing a demo example project. 
@@ -204,3 +212,4 @@ Now, follow up the [CronJob tutorial][cronjob-tutorial] to better understand how
 [cronjob-tutorial]: https://book.kubebuilder.io/cronjob-tutorial/cronjob-tutorial.html
 [GOPATH-golang-docs]: https://golang.org/doc/code.html#GOPATH
 [how-to-write-go-code-golang-docs]: https://golang.org/doc/code.html 
+

pkg/scaffold/v2/makefile.go

@@ -75,6 +75,10 @@ run: generate fmt vet manifests
 install: manifests
 	kustomize build config/crd | kubectl apply -f -
 
+# Uninstall CRDs from a cluster
+uninstall: manifests
+	kustomize build config/crd | kubectl delete -f -
+
 # Deploy controller in the configured Kubernetes cluster in ~/.kube/config
 deploy: manifests
 	cd config/manager && kustomize edit set image controller=${IMG}