kubectl apply -f registry/restrict_registry_tmplt.yaml
kubectl describe constrainttemplate restrictregistry
kubectl apply -f registry/restrict_registry_cnstr.yaml
kubectl describe constraint restrict-registry
kubectl apply -f registry/bad_registry_test.yaml
kubectl get deployments busybox-bad -o yaml
kubectl apply -f registry/good_registry_test.yaml
kubectl get deployments busybox-good -o yaml
kubectl delete deployment busybox-bad
kubectl delete deployment busybox-good
kubectl delete constraint restrict-registry