build:
  image: docker:latest
  stage: build
  variables:
    DOCKER_DRIVER: overlay2
  services:
    - docker:dind
  script:
    - >
      docker run -t --rm
      -v /var/run/docker.sock:/var/run/docker.sock
      -v "$(pwd)":"$(pwd)"
      -w "$(pwd)"
      -u 0:0
      gradle:5.0 ./gradlew clean check jacocoTestReport copyRestDocs bootJar