Last Updated: November 21, 2025
Focus Areas
| Focus |
|---|
Order instructions from least to most volatile
|
Push cache images to registries for CI reuse
|
Commands & Queries
docker build --cache-from myregistry/my-app:latest -t my-app:latest .
Reuse remote cache
docker build --target builder .
Skip final image steps during iteration
docker history my-app:latest
Inspect layer size/age
Summary
Reorder Dockerfiles, push caches, and inspect history to optimize rebuilds.
💡 Pro Tip:
Put the least volatile steps at the top and re-use remote caches via `--cache-from`.