I developed a Spring Boot (Java) backend API project and execut it with Maven and I would like to create a Dockfile for executing the project

Unfortunately, I used to execute my project with ItelliJ IDE so without a command line(s) so I don’t know what what to do to execute my project.
I hosted my project on GitHub and the adress is : https://github.com/T1mart/flipthebook-back

I tried to specify a goal in the pom.xml but nothing really changed.
Thank you in advance !