Introducing Istio resources
Once you deploy Istio, you will have additional custom resources that provide the Istio features. Each of these resources provides powerful features and each one could be a chapter by itself. In this section, we want to provide enough details so you will have a strong understanding of each object. In the next section, we will deploy a basic application that will explain many of the objects in a real-world application example.
Authorization policies
Authorization policies are used to control access to the deployments in the service mesh. They provide developers with the ability to control access to workloads based on actions including deny, allow, and custom.
Policies are applied in a certain order. Istio will apply custom policies first, then deny policies, and finally, any allow policies.
Understanding how a policy's actions are evaluated is very important, since a misconfigured policy may not provide the expected results. The high...