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Nginx automatic folder direction

As I’m getting more subdomains on my website (wf, brutal) I wanted to setup my web server to automatically handle these so I didn’t need to set up each one manually every time I make a new one.

Each of my subdomains are in folders named [subdomain] in the /var/www/ folder, so this capture includes the full domain (I could also just name the folders [subdomain] and omit the rest of the domain name).

I couldn’t find anything directly for what I wanted on the internet, so this is what I set up for myself:

server {
  listen 80;
  # ~ tells it to treat the following as regex
  # the () is a capture group, referenced by the $1 in root
  # this specific capture group is looking for [anything]
  server_name ~(.*\.nathanwentworth\.co);
  root /var/www/$1/html;
  index index.html;

  location / {
    try_files $uri $uri/ =404;