TODO Check for Dockerfiles format https://hub.docker.com/_/gradle/ https://github.com/keeganwitt/docker-gradle/blob/2ec2b3d1208cf8a54f3ecae900e927e8a1d4a6b7/jdk8/Dockerfile https://github.com/niaquinto/docker-gradle/blob/master/Dockerfile https://github.com/cloudbees/jnlp-slave-with-java-build-tools-dockerfile Makefile https://github.com/mvanholsteijn/docker-makefile