Add subdomain template

nginx/subdomain.conf

@@ -0,0 +1,22 @@
+server {
+  index index.html;
+
+  root MY_ROOT;
+  server_name DOMAIN;
+
+  location / {
+    try_files $uri $uri/;
+  }
+}
+
+server {
+  root MY_ROOT;
+  if ($host = DOMAIN) {
+      return 301 https://$host$request_uri;
+  } # managed by Certbot
+
+  listen 80;
+  listen [::]:80;
+  server_name DOMAIN;
+  return 404; # managed by Certbot
+}