This directory allows you to develop your adapter in a dedicated Docker container. To get started and for requirements, please read the getting started section at https://code.visualstudio.com/docs/remote/containers#_getting-started
Once you're done with that, VSCode will prompt you to reopen the adapter directory in a container. This takes a while, afterwards you can access the admin UI at http://localhost:8082. To change that port, edit docker-compose.yml to have a different ports configuration for nginx.