Key terms and common mistakes
The words you will hear in Kubernetes work and the mistakes that most often cost interns approvals.
Key terms
| Term | Meaning |
|---|---|
| Kubernetes | Container orchestration platform |
| API server | Front door to the cluster |
| Pod | Smallest deployable unit |
| Service | Stable endpoint for pods |
| ConfigMap | Non-secret configuration |
| Volume | Storage attached to a pod |
| Requests | Guaranteed resources for scheduling |
| Liveness probe | Restarts unhealthy containers |
Common mistakes to avoid
- Running containers without resource requests and limits.
- Using the latest image tag in production.
- Putting real secrets in Git as plain YAML.
- Skipping readiness probes, so traffic reaches pods that are not ready.
- Leaving cloud clusters running after practice.
Want to go deeper? The free Kubernetes learning path has short modules, games and a certificate for each module.