Run sbt packageBin to create distribution zip(see target/universal directory).
Or you can build Docker image with sbt docker:publishLocal and then run as usual local docker image.
Run with sbt run or as usual docker image or extract arhive and run bin/ticketreservation.
If you are using zip distribution then all configs are available in conf/application.conf file.
For sbt run take a look in src/resources/reference.conf
Have fun!