Kubernetes Core

Portal | All Topics | Domain: Kubernetes | Tier: 1

Also known as: kubernetes, pods, deployments, services, k8s, openshift

---

📘 Topic Packs

Asset	Level	Time	Status
Chaos Engineering & Fault Injection	L2	5h	solid
Kubernetes Concept Chain	L0	2h	solid
Kubernetes Debugging Playbook	L2	4h	solid
Kubernetes Pods & Scheduling	L1	4h	solid
Kustomize	L1	3h	solid
Mental Models (Core Concepts)	L0	4h	solid
Platform Engineering Patterns	L2	5h	solid
The Ops of AI/ML Workloads	L2	4h	solid

🏋️ Exercise Sets

Asset	Level	Time	Status
Chaos Engineering Scripts (CLI)	L2	2h	solid
Kubernetes Exercises (Quest Ladder) (CLI)	L1	10h	solid

🔬 Labs

Asset	Level	Time	Status
Lab: HPA Live Scaling (CLI)	L1	30m	solid
Lab: Readiness Probe Failure (CLI)	L1	30m	solid
Lab: Resource Limits OOMKilled (CLI)	L1	30m	solid

⚡ Drills

Asset	Level	Time	Status
kubectl Drills	L1	45m	solid

🎯 Scenarios

Asset	Level	Time	Status
Adversarial Interview Gauntlet (30 sequences)	L2	15h	solid
Interview: Deployment Stuck Progressing	L2	15m	solid

📋 Runbooks

Asset	Level	Time	Status
Runbook: Deployment Stuck / Rollout Stalled	L1	15m	solid
Runbook: Disaster Recovery	L2	20m	solid
Runbook: HPA Thrashing (Rapid Scale Up/Down)	L2	15m	solid
Runbook: ImagePullBackOff	L1	15m	solid
Runbook: OOMKilled Container	L1	15m	solid
Runbook: Pod CrashLoopBackOff	L1	15m	solid
Runbook: Pod Eviction	L2	15m	solid
Runbook: Readiness Probe Failed	L1	15m	solid
Runbook: Velero Backup & Restore	L2	15m	solid

📝 Assessments

Asset	Level	Time	Status
Skillcheck: Kubernetes	L1	45m	solid
Skillcheck: Kubernetes Under the Covers	L2	45m	solid

📎 References

Asset	Level	Time	Status
Track: Kubernetes Core	L1	15h	solid
kubectl Debugging Cheatsheet	L1	15m	solid

🔍 Case Studys

Asset	Level	Time	Status
Case Study: Alert Storm — Flapping Health Checks	L2	30m	solid
Case Study: Canary Deploy Routing to Wrong Backend — Ingress Misconfigured	L2	30m	solid
Case Study: CrashLoopBackOff No Logs	L1	30m	solid
Case Study: DNS Looks Broken — TLS Expired, Fix Is Cert-Manager	L2	30m	solid
Case Study: DaemonSet Blocks Eviction	L2	30m	solid
Case Study: Deployment Stuck — ImagePull Auth Failure, Vault Secret Rotation	L2	30m	solid
Case Study: Drain Blocked by PDB	L2	30m	solid
Case Study: HPA Flapping — Metrics Server Clock Skew, Fix Is NTP	L2	30m	solid
Case Study: ImagePullBackOff Registry Auth	L1	30m	solid
Case Study: Job Queue Backlog — Worker Pod CPU Throttled by cgroup	L2	30m	solid
Case Study: Node NotReady — NIC Firmware Bug, Fix Is Ansible Playbook	L2	30m	solid
Case Study: Node Pressure Evictions	L2	30m	solid
Case Study: Persistent Volume Stuck Terminating	L2	30m	solid
Case Study: Pod OOMKilled — Memory Leak in Sidecar, Fix Is Helm Values	L2	30m	solid
Case Study: Resource Quota Blocking Deploy	L2	30m	solid
Case Study: Service No Endpoints	L1	30m	solid
Case Study: User Auth Failing — OIDC Cert Expired, Cloud KMS Rotation	L2	30m	solid
Ops Archaeology: The Alerts That Stopped Firing	L2	30m	solid
Ops Archaeology: The Cluster That Disagrees With Itself	L2	30m	solid
Ops Archaeology: The DR That Looks Ready But Isn't	L2	30m	solid
Ops Archaeology: The Deploy That Didn't Deploy	L1	30m	solid
Ops Archaeology: The Job That Succeeded Wrong	L2	30m	solid
Ops Archaeology: The Pods That Won't Schedule	L1	30m	solid
Ops Archaeology: The Session Store That Keeps Dying	L2	30m	solid

Related Topics

• Probes (Liveness/Readiness) (6 shared assets)
• Kubernetes Networking (5 shared assets)
• OOMKilled (5 shared assets)
• Linux Fundamentals (5 shared assets)
• HPA / Autoscaling (4 shared assets)
• Docker / Containers (4 shared assets)
• CI/CD (3 shared assets)
• Kubernetes Storage (3 shared assets)
• TLS & PKI (3 shared assets)
• Linux Networking Tools (3 shared assets)

Study

Study this topic → Start review →