Visual Studio Code: Java application and remote debugging

I'm trying to figure out how to configure Visual Studio Code in order to remote debug a Java application.

The application starts in a Docker container and I need to attach the debugger in the proper way.

With Eclipse (STS) is easy because there is the Remote Java Application config where you define

- application
- host 
- port

and It works, unfortunately I didn't understand how to make the same thing on Visual Studio Code. Reading this article: "https://code.visualstudio.com/docs/remote/containers#_creating-a-devcontainerjson-file" was not helping for me.

Thanks for any answers.