Now that you have the application working, it is time to apply some security hardening. You'll use [network policies](https://docs.openshift.com/aro/4/networking/network_policy/about-network-policy.html) to restrict communication to the `rating-api`.
You will create a policy that applies to any pod matching the `app=rating-api` label. The policy will allow ingress only from pods matching the `app=rating-web` label.
Use the YAML below in the editor, and make sure you're targeting the **workshop** project.