Description: Kubernetes Admission Review is a critical process that determines whether a request to the Kubernetes API should be allowed or denied. This mechanism is based on security policies that ensure that only authorized users and services can interact with the cluster’s resources. Admission review is carried out through various admission controllers that can modify or validate requests before they are processed. These controllers can implement security policies, such as verifying the identity of the requester, validating the requested resources, and applying specific configurations. The importance of this process lies in its ability to reinforce the security and integrity of the Kubernetes environment, especially in architectures that adopt a Zero Trust approach, where it is assumed that no entity, whether internal or external, is trusted by default. This means that every request must be verified and authenticated, thereby minimizing the risk of unauthorized access and potential security breaches. In summary, Kubernetes Admission Review is an essential component for managing security in container environments, ensuring that interactions with the API are conducted in a controlled and secure manner.
