I use Apache and rewrite to https:// rule I have on my :80 instance is
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteCond %{REQUEST_URI} !^/.well-known
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [NC,NE,R=permanent,L]
config.php
'datadirectory' => '/var/www/domains/mydom.net/htdocs/nextcloud/data',
'overwrite.cli.url' => 'https://mydom.net/',
'htaccess.RewriteBase' => '/',
'dbtype' => 'mysql',
'version' => '19.0.0.12',