Focused, hands-on problems for sharpening your DevOps and server-side skills. Some teach specific concepts while others mirror real-world scenarios. Every challenge includes hints, feedback, and automated solution checks.
Enforce Kubernetes security best practices by disabling automatic ServiceAccount token mounting and providing a short-lived projected token to the application Pod.
Two monitoring applications are failing due to missing RBAC permissions. Fix both by creating ServiceAccounts, Roles, and RoleBindings.
A Deployment is failing because its ServiceAccount lacks permissions to list pods. Fix the issue by binding an existing Role to the ServiceAccount.