Java development environment in Docker

As a OpenLMIS developer I need a docker image with which I may launch 1+ containers which give me development tooling (e.g. JDK, Gradle, etc) so that I may have an easy environment from which to develop a single Java-based service from.

• Start with Java, JDK, Gradle, etc

• Image should be re-usable (ie launch generic containers) across services (host mount code in)

• db connection should be "handed" to it (credential mgmt through environment variables is fine)

• container should be ephemeral

• should expose common ports: debug and http

• most likely should be paired with simple docker compose to wire it together with database, however composing multiple services is out of scope