Utilizing Docker in Chat application

How would one implement a chat application when user clicks “Create new room” on the front end, from there the user can add a name to the room set password and set number of users can connect (let say 8) and once they click “create room” it creates that room in a container. Once the users are done with their chat session, the container is automatically deleted.

I am not asking on “help me with code”. I want to learn the topics that are necessary to learn in order to achieve my project. Please let me know!

Thank you in advance!