This has not been tested with Istio 1.2.5! Mixer has changed with recent versions of Istio and this might be out of date!
We'll block access to the Guestbook Service by adding the deny-guestbook-service.yaml rule shown below.
kubectl apply -f istio/deny-guestbook-service.yamlVisit Guestbook UI and see that Guestbook Service can no longer be accessed.
To remove denial, you can delete the rule.
kubectl delete -f istio/deny-guestbook-service.yaml