Minimal configuration for Nginx reverse proxy

nginx-proxy.conf

server {
    server_name subdomain.example.com;
    location / {
        proxy_pass http://localhost:8888;
        include /etc/nginx/proxy_params;
    }
    access_log /var/log/nginx/example-subdomain.log;
    error_log /var/log/nginx/example-subdomain-error.log crit;
    proxy_buffer_size 128k;
    proxy_buffers 4 256k;
    proxy_busy_buffers_size 256k;
    listen 80;
    listen [::]:80;
}