Hello folks,
I’ve seen this video from Devoxx (in French, but easy to understand as this is just live coding with big caracters ) Dockerfile - Les bonnes pratiques (Guillaume Lours et Jérémie Drouet)
While many things we already know are inside (one service per container, isolate networks, use existing community images…), I noticed some really interesting details, that I share here:
- Dig into
mvn dependencies:offline
, seen at 17:50 - Dig into
java -xf
to explode the jar and limit Docker cache invalidation (not understood all details) - Dig into multi-stage build (FROM foo AS bar FROM foo2COPY FROM bar). As far as I understand, this could avoid us the creation of intermediate docker images, but is it the only benefit?
@fabrice @koj or anyone else, I’m really interested in your understanding / feedback on these points / the video.
Thank you