Challenges by Kaloyan Preslavski

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Workloads: CronJobs

by Kaloyan Preslavski

Create a CronJob, trigger Jobs manually, limit job history, suspend the schedule, and observe all three concurrencyPolicy modes: Allow, Forbid, and Replace.

#workloads #ckad #cronjob #ownerreferences #scheduling

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: nodeSelector and Node Affinity

by Kaloyan Preslavski

Start with nodeSelector for simple node targeting, then upgrade to node affinity for expressive matching that nodeSelector cannot handle.

#node-selector #node-affinity #scheduling #ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: LimitRange and ResourceQuota

by Kaloyan Preslavski

Use LimitRange to set per-pod resource defaults and ResourceQuota to cap total namespace consumption.

#limitrange #resourcequota #resource-management #scheduling #ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: Quality of Service Classes

by Kaloyan Preslavski

See how Kubernetes determines BestEffort, Burstable, and Guaranteed classes from resource configuration - and which pods get evicted first under pressure.

#qos #resource-requests #scheduling #ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: Resource Requests

by Kaloyan Preslavski

See how CPU and memory requests influence where pods land - and what happens when no node can fit them.

#scheduling #ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: Priority and Preemption

by Kaloyan Preslavski

Use PriorityClass to guarantee critical pods get scheduled even when the cluster is under resource pressure.

#priority-class #preemption #scheduling #ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: Topology Spread Constraints

by Kaloyan Preslavski

Spread pods evenly across nodes and availability zones using maxSkew and zone-aware topology keys.

#topology-spread #scheduling #ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: Taints, Tolerations and Node Affinity - Why You May Need Both

by Kaloyan Preslavski

See why taints and tolerations alone or node affinity alone are not enough to fully control pod placement on dedicated nodes.

#taints #tolerations #node-affinity #scheduling #ckad

This challenge was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis.

Challenge on Kubernetes

Kubernetes Pod Scheduling: Pod Affinity and Anti-Affinity

by Kaloyan Preslavski

Co-locate pods that belong together and keep apart pods that should not share a node using affinity and anti-affinity rules.

#pod-affinity #anti-affinity #scheduling #ckad