This project has two servers because it was requested for the test.
First version ===> To launch this project, call the install.sh script. In the first terminal, you will call startService.sh script. In a second terminal, you will call startWorker.sh script. To run the cron , copy in you cron tab the content of runCron.sh script.
Optimized version ===> Same as above, but since the runCron.sh script has been removed, you don't need to run it.