[Documentation] I think it would be useful to provide docs for artifacts caching

[ieugen]

Hello,

When building Clojure apps a lot of artifacts get downloaded.
These can be cached between re-runs for people where this makes sense.

This should improve image build speed - esp in CI servers.

I think more people would use this feature if they new they could and knew where the artifacts are stored in the image so they can mount volumes there.

WDYT?
Eugen

[cap10morgan]

Sure, we could use some more docs around this. However, there's nothing particularly special about Docker here. The local maven repo is in $HOME/.m2/repository like anywhere else.

And otherwise most of this involves adding in your project.clj, deps.edn, or build.boot (or whatever, I'm not a boot user) file first, installing deps, and then adding in the rest of your code / JAR / whatever so that you only break the deps cache when the file that defines what they are changes. That's pretty common across Docker usage w/ lang-specific dependency managers.

But I've been meaning to re-organize the docs anyway, so I can add a section that spells this all out in there when I do.

[practicalli-johnny]

https://practical.li/blog/posts/build-and-run-clojure-with-multistage-dockerfile/ article covers using the Offical Clojure Docker image for building Clojure and leveraging the docker cache

Feel free to link or use the content (creative commons attribution license)

Thank you.