Restricting cluster-admin Permissions
Read OriginalThis technical article discusses a limitation of Kubernetes RBAC, which only allows adding permissions. It details a real-world problem where a buggy CLI tool used by cluster-admins was causing issues, and explains how the team at Giant Swarm used the Kyverno admission controller to create a ClusterPolicy that blocks specific delete actions, effectively restricting permissions even for users with the cluster-admin role.
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