What are the advanced features of Kubernetes RBAC?

What are the advanced features of Kubernetes RBAC?

Kubernetes RBAC (Role-Based Access Control) allows fine-grained control over permissions. Advanced features include the ability to define roles at different scopes, such as cluster-wide or namespace-specific, and the use of aggregation rules to combine multiple roles.

Can you explain how aggregation rules work?

Aggregation rules allow you to define a role that combines multiple existing roles. For example, you can create a role that grants permissions from several other roles, making it easier to manage access without duplicating permissions.

What are some best practices for implementing RBAC in Kubernetes?

Some best practices include starting with the principle of least privilege, regularly reviewing roles and permissions, and using namespaces to isolate resources and permissions.

How can I troubleshoot RBAC issues in my cluster?

You can troubleshoot RBAC issues by checking the role bindings, reviewing the logs for permission errors, and using the kubectl auth can-i command to test permissions for specific actions.