Getting started This guide will get you started with the OpenPolicyAgent (OPA) using the Stackable Operator. It will guide you through the installation of the Operator, setting up your first OPA instance, creating a policy rule and querying it. Prerequisites You will need: a Kubernetes cluster kubectl curl optional: Helm What’s next The Guide is divided into two steps: Installing the Operator. Setting up an OPA, a policy rule and querying it.