server {
    listen 3100 default_server ssl;

    include /etc/nginx/includes/server_params.conf;
    include /etc/nginx/includes/ssl_params.conf;
    include /etc/nginx/includes/proxy_params.conf;

    ssl_certificate /ssl/%%certfile%%;
    ssl_certificate_key /ssl/%%keyfile%%;

    location / {
        proxy_pass http://backend;
    }
}