nginx-basic/etc/nginx/availableSites/redirectHTTPS.conf

#######
### NGINX server configuration
### Redirect to secure connection
#######

server {
    listen 80;
    listen [::]:80;

    # specify server name(s)
    include /etc/nginx/snippets/server_names.conf;

    # redirect to properly formed HTTPS request
    return 301 https://$host$request_uri;

    # error pages
    include /etc/nginx/snippets/error_pages.conf;
}