IntermediatePhone
2 min
Docker Multi-stage Builds
DockerContainersBuild Systems
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Interview Question
What are Docker multi-stage builds and why are they useful?
Key Points to Cover
- Use multiple FROM stages to separate build and runtime
- Reduces final image size and attack surface
- Improves caching and reproducibility of builds
Evaluation Rubric
Explains multi-stage concept34% weight
Describes size/security benefits33% weight
Mentions caching/reproducibility33% weight
Hints
- 💡Think: builder image → copy artifacts to skinny runtime.
Potential Follow-up Questions
- ❓How do you pass artifacts between stages?
- ❓How to cache dependencies effectively?
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