| Term | Meaning |
|---|---|
| image | Read-only template for creating containers |
| container | Running instance of an image |
| Dockerfile | Script defining how to build an image |
| registry | Storage for Docker images (Docker Hub, ECR) |
| volume | Persistent storage mounted into a container |
| Term | Meaning |
|---|---|
| pod | Smallest deployable unit — one or more containers |
| deployment | Manages rolling updates and replicas of pods |
| service | Stable network endpoint for accessing pods |
| ingress | HTTP routing rules to services |
| horizontal scaling | Adding more pod replicas under load |