What is Kubernetes RBAC?

Kubernetes RBAC, or Role-Based Access Control, is a sophisticated method for managing permissions within a Kubernetes cluster. It is designed to regulate access to resources based on the roles of individual users or groups. This system allows administrators to define what actions a user can perform on specific resources, enhancing security and ensuring that users only have access to the components necessary for their role.

In this model, roles can be defined with specific permissions that outline which resources can be accessed and the actions that can be taken, such as creating, deleting, or modifying those resources. By implementing RBAC, clusters can enforce security policies effectively, limiting the risk of accidental or malicious actions that could jeopardize the integrity of the system.

Other options, while related to aspects of Kubernetes, do not pertain to access control. For example, regulating CPU allocation relates to resource management rather than user permissions, accessing logs is primarily focused on troubleshooting and monitoring, and scaling applications dynamically concerns the deployment and management of workloads rather than user access levels.