Guided labs
Build one portfolio application progressively, then reconstruct and adapt it independently.
Second Edition
Kubernetes Operator's Workbook
Build. Deploy. Troubleshoot. Explain. Turn Kubernetes knowledge into repeatable operating skill through one continuous application, guided labs, deliberate failures, recovery proof, and interview narration.
86-page downloadable PDF · 24 production incidents · Local and cloud cluster pathways
Built for operating, not memorizing
24 production incidents
Diagnose realistic workload, network, storage, security, rollout, and control-plane failures.
Control-plane recovery
Practice etcd snapshot validation and restore, static Pod diagnosis, certificates, and kubeconfig recovery.
Interview simulations
Explain evidence, risk, intervention, validation, and root cause with professional clarity.
What you will operate
- Containers, registries, Deployments, Services, DNS, EndpointSlices, Gateway API, and legacy Ingress literacy
- ConfigMaps, Secrets, probes, resource management, autoscaling, storage, RBAC, NetworkPolicy, and Pod Security
- StatefulSets, DaemonSets, Jobs, CronJobs, node operations, disruption budgets, and rollout safety
- GitHub Actions, image scanning, Kustomize, Helm, GitOps foundations, and production evidence
Designed for
- Self-taught Kubernetes learners who need structured practice
- DevOps, platform, and SRE candidates preparing for interviews
- Engineers moving from command familiarity to operational judgment
- Instructors and teams that need repeatable incident exercises
Free practice articles
Use these focused guides to understand the operating method, then apply it inside the workbook.
Kubernetes Troubleshooting Labs: A Production-Style Practice System
Build labs that train evidence collection, safe repair, recovery proof, and interview-ready explanation.
Kubernetes Incident Response Practice: From Alert to Recovery Proof
A disciplined incident-response model for scope, rollback decisions, communication, repair, and recovery proof.
CKA Practice Beyond Memorization: Train the Operator Behind the Commands
Use CKA-aligned practice to build API discovery, troubleshooting judgment, and repeatable recovery.
etcd Backup and Restore Lab for Kubernetes Administrators
A safe disposable-cluster lab for snapshot validation, restore, static Pod configuration, and recovery proof.
Kubernetes Interview Scenarios: 12 Production Questions and Answer Patterns
Production scenarios with evidence paths, safe interventions, recovery proof, and explanation patterns.
Questions before buying
Is it tied to one cloud provider?
No. The core route is environment-agnostic and works with local or conformant cloud clusters. Provider-specific differences are identified where relevant.
Is it suitable for CKA preparation?
It includes CKA-aligned practice, but it is deliberately broader than exam drills. It trains production reasoning, troubleshooting, recovery, and explanation.
What format will I receive?
A professionally designed 86-page PDF workbook delivered securely through Gumroad.
Who wrote it?
Temitayo Charles, a DevSecOps, Kubernetes, and platform engineering practitioner.