Access sites outside of docker environment (on bare metal)

[raindropworks]

Eventually I'm hoping for this to be a thing of the past, but I've been running Apache for years and most of my sites are already in docker containers. A few critical sites, however, are still running on bare metal, and I've been having trouble finding good guides on how to migrate properly (especially since downtime is something I really want to avoid).

Does NPM have a way to read into bare metal folders to host a site, i.e. if I volume mount /var/www/site.xyz somewhere in it? Website wasn't really giving me info on this

Edit: I -think- this guide may give me what I'm looking for, but I'm also not sure if it's compatable, as the main sites are not static, but a wordpress and a mediawiki site https://dimensionquest.net/2021/02/host-static-site-on-npm/