Scala in Docker

docker build -t scala .
docker run --rm -it -v$(pwd):/opt scala

# java -version
openjdk version "11.0.10" 2021-01-19
OpenJDK Runtime Environment (build 11.0.10+9-Ubuntu-0ubuntu1.20.10)
OpenJDK 64-Bit Server VM (build 11.0.10+9-Ubuntu-0ubuntu1.20.10, mixed mode, sharing)

# scala -version
Scala code runner version 2.11.12 -- Copyright 2002-2017, LAMP/EPFL