The script itself exists with in the dockerfile(Testing-Env)
It runs with a simple sleep command and it is supposted to go on forever, so that you can enter it.
Download or copy the file contents into their apropreatly named files.
docker-compose -f Testing-Env.yml build
docker-compose -f Testing-Env.yml up -d
docker-compose -f Testing-Env.yml build && docker-compose -f Testing-Env.yml up -d
Enter the container to mess arround:
docker exec -it Testing-Env /bin/bash