Ticket #2033: nginx.conf

user  nginx;
worker_processes  1;
error_log  /usr/local/nginx/logs/error.log debug;
daemon off;
master_process off;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    error_log  /usr/local/nginx/logs/error.log debug;
    access_log /usr/local/nginx/logs/access.log main;

    sendfile        on;
    keepalive_timeout  65;

    resolver 127.0.0.1:53 ipv6=off;
    
    # origin server
    server {
        listen 8081;
        server_name origin.com;
        root html;
        index  index.html;
    }

    # redirect server
    server {
        listen 8080;
        server_name redirect.com;
        location / {
            return 302 http://origin.com:8081$request_uri;
        }
    }

    # upstream for proxy server to access "redirect server" upstream with keepalive
    upstream redirect_server {
        server 127.0.0.1:8080;
        keepalive 4;
    }
    # proxy server
    server {
        listen       80;
        server_name  example.com;

        proxy_intercept_errors on;
        error_page 302  =200 @handle_redirect;

        location @handle_redirect {
            proxy_http_version    1.1;
            proxy_set_header Connection "";

            # proxy_pass withou upstream or keepalive
            set $redirect_location  '$upstream_http_location';
            proxy_pass $redirect_location;
        }

        location / {
            proxy_http_version    1.1;
            proxy_set_header Connection "";
            
            # use upstream and keepalive
            proxy_pass http://redirect_server;
        }    
    }
}