gistfile1.txt

upstream default {
    server server1;
    server server2;
}

server {
    listen 80;
    server_name  localhost;

    location / {
        proxy_set_header        Host $host;
        proxy_set_header        X-Real-IP $remote_addr;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header        X-Forwarded-Proto $scheme;
        proxy_connect_timeout       7200;
        proxy_send_timeout          7200;
        proxy_read_timeout          7200;
        send_timeout                7200;
        client_max_body_size 1000M;

        proxy_pass http://default;
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}