This is a simple node.js site that serves a textbox.
As with any node site, you can start it with node . when in the right folder.
The site will run on port 120, but can easily be changed on line 43
The site will serve a textbox and a button, no external html required.
When the text is submitted it will be used to start a docker-compose file and use the textbox value as the variable NUM.
This can be any docker-compose.yml file, and if the NUM variable does not exist, will just start normally.