Role-based access control (RBAC) is a method of restricting access to certain system objects based on the roles of individual users within an enterprise. It provides structure to the otherwise unstructured environment and makes it easier to assign responsibility and accountability. Kubernetes implements role-based access control via Roles and RoleBindings.
A Role is a set of granular permissions that can be applied to authentication subjects, such as users, groups, or service accounts. A Role grants permissions to perform specific actions within a given namespace.
A RoleBinding ties together a user, group, or service account with a role. It enables users to access resources in a particular namespace. A RoleBinding grants the permissions defined by the associated Role to the specified subjects.
In conclusion, Roles and RoleBindings are essential components of RBAC in Kubernetes. They provide granular access control by specifying which users, groups, or service accounts have permission to access resources in a given namespace.
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