Cleaned up Dockerfile and build.sh script

How to configure tomcat ?
3 jobs for testing in 55 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Lint
failed #2512
gitlabdocker
lint-scripts

00:00:55

 
  Build
skipped #2513
gitlabdocker
build container
 
  Test
skipped #2514
gitlabdocker
test container
 
Name Stage Failure
failed
lint-scripts Lint
latest: Pulling from hadolint/hadolint
601624ad4577: Pulling fs layer
601624ad4577: Download complete
601624ad4577: Pull complete
Digest: sha256:58cef081081977c24a0f31da95b84699a3fd981b01e54dc9e9131999f9429a9f
Status: Downloaded newer image for hadolint/hadolint:latest
/dev/stdin:13 DL3003 Use WORKDIR to switch to a directory
/dev/stdin:21 DL3025 Use arguments JSON notation for CMD and ENTRYPOINT arguments
ERROR: Job failed: exit code 1