Challenge on Kubernetes
Kubernetes Workloads: CronJobs
Create a CronJob, trigger Jobs manually, limit job history, suspend the schedule, and observe all three concurrencyPolicy modes: Allow, Forbid, and Replace.
Materials by Kaloyan Preslavski
Tutorials, challenges, courses, skill paths, playgrounds, and more — search the whole library in one place.
Challenge on Kubernetes
Kubernetes Pod Scheduling: nodeSelector and Node Affinity
Start with nodeSelector for simple node targeting, then upgrade to node affinity for expressive matching that nodeSelector cannot handle.
Challenge on Kubernetes
Kubernetes Pod Scheduling: LimitRange and ResourceQuota
Use LimitRange to set per-pod resource defaults and ResourceQuota to cap total namespace consumption.
Challenge on Kubernetes
Kubernetes Pod Scheduling: Quality of Service Classes
See how Kubernetes determines BestEffort, Burstable, and Guaranteed classes from resource configuration - and which pods get evicted first under pressure.
Explore Kubernetes Pod Scheduling
Nine hands-on challenges split into two sections. The resource section covers how requests, QoS classes, priority, and namespace quotas shape scheduling decisions. The placement section covers how affinity, topology spread, and dedicated nodes control where pods land. HPA closes the path by showing how requests drive autoscaling.