Reverse proxy and domain forwarding [closed]

I'm trying to set up a VPS with a single IP address to run my static homepage and some additional services such as NextCloud. I already have a domain that points to the VPS's IP address. Reading through a number of tutorials on self-hosting, a common solution for this type of scenario is to set up a reverse proxy that forwards to different subdomains, e.g. nextcloud.mydomain.com. However, here's my question:

How can I run my static homepage under the main domain, while having services run under subdomains?

All examples I have seen so far serve static content under another subdomain, e.g. blog.mydomain.com. That's not exactly what I want. In fact, I wonder what the response of the reverse proxy is when I try to access the main domain.

I'm using docker and docker-compose for managing the VPS. So far, I tried the jwilder/nginx-proxy and traefik images as reverse-proxies. Any help (literature, relevant tutorials, github repos, etc.) would be highly appreciated!

Nginx Proxy Manager is what you are looking for: https://nginxproxymanager.com/ It has a fairly simplistic web UI. You can create multiple proxy mappings for all of the subdomains that you want to use. It supports websockets, forwaring, and Let's Encrypt.

You can route traffic using the internal docker network to the containers that are hosting the services.