nginx-proxy

server {
    listen 80;
    server_name HOSTNAME.HERE;

    access_log /var/log/nginx/HOSTNAME.HERE_http_access.log;
    error_log /var/log/nginx/HOSTNAME.HERE_http_error.log;

    location / {
        proxy_pass http://BACKEND.HOSTNAME.HERE;
        proxy_buffering on;
        proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;

        ### Set headers ####
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        ### Most PHP, Python, Rails, Java App can use this header ###
#       proxy_set_header X-Forwarded-Proto https;

        ### By default we don't want to redirect it ####
        proxy_redirect off;
    }
}