Materials by Kaloyan Preslavski

Explore tutorials, challenges, courses, and more published by this author.

Challenges by Kaloyan Preslavski

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Challenge,  Easy

Kubernetes Workloads: ReplicaSets and Deployments

Build a ReplicaSet by hand, observe self-healing, then update its template and end up with Pods running different images. Layer a Deployment on top and confirm the full ownership chain.

Submissions: 3/6
Challenge,  Easy

Kubernetes Workloads: Pods

Build a Pod from scratch, exec into it, try to edit an immutable field, explore all three restart policies, and observe graceful termination.

Submissions: 7/10

Skill Paths by Kaloyan Preslavski

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Skill Path

Kubernetes Storage: From Ephemeral to Persistent

Four hands-on challenges covering the full storage stack. Start with emptyDir, move to dynamic provisioning with StorageClass, explore static PV binding patterns including label selectors, bidirectional claimRef, and topology-aware local volumes, then finish with PV reclaim policies and data recovery.

Skill Path

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.