Scala?

good point, might be worth a revisit

Totally agree. I'm surprised that the new scala-cli is almost not mentioned at all in other comments. To me this is a game changer and the best in class. I don't think I've seen anything that comes close to its power and ease of use in other programming language SDKs.

It does. Check out Docker volume plugins like: https://docs.docker.com/docker-for-aws/persistent-data-volum... https://github.com/thecodeteam/rexray

You use one of the Docker plugins: https://docs.docker.com/docker-for-aws/persistent-data-volum... https://github.com/thecodeteam/rexray

Regarding persistent storage following containers, check out REX-Ray: https://rexray.readthedocs.io/en/stable/ as it works with various storage options.