advanced~4h
Performance Optimization: Layer Caching, Multi-Stage Builds & Alpine
This chapter consolidates and deepens the performance-related threads from earlier chapters (Chapter 2's layer caching, Chapter 3's multi-stage builds) into a single, interview-focused treatment, and
Learning objectives
- Apply BuildKit cache mounts to keep package-manager caches persistent across builds, beyond ordinary layer caching.
- Explain the trade-off Alpine's musl libc introduces, and when it's worth accepting.
- Measure and compare final image size and build time across several optimization techniques on the same application.
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Performance Optimization: Layer Caching, Multi-Stage Builds & Alpine