NginxでRailsにプロキシするときのミニマム設定

location / {
    proxy_pass          http://localhost:3000;
    proxy_set_header    Host             $host;
    proxy_set_header    X-Real-IP        $remote_addr;
    proxy_set_header    X-Forwarded-For  $proxy_add_x_forwarded_for;
}