OpenBSD: Nginx configuration

nginx.conf

working_directory "/var/www/htdocs/html/demo"                                                             
                                                                                                          
# Unicorn PID file location                                                                               
# pid "/path/to/pids/unicorn.pid"                                                                         
pid "/var/www/htdocs/html/demo/pids/unicorn.pid"                                                          
                                                                                                          
demo$ cat /etc/nginx/nginx                                                                                
nginx.conf           nginxbackup          nginxconfworking                                                
demo$ cat /etc/nginx/nginx.conf                                                                           
user www;                                                                                                 
worker_processes 3;                                                                                       
pid /var/run/nginx.pid;                                                                                   
error_log /var/log/httpd.err error;                                                                       
                                                                                                          
events {                                                                                                  
  worker_connections 1024;                                                                                
}

http {                                                                                                    
  include mime.types;                                                                                     
  default_type application/octet-stream;                                                                  
  access_log /var/log/httpd.log combined;                                                                 
                                                                                                          
  sendfile on;                                                                                            
  tcp_nopush on;                                                                                          
  keepalive_timeout 5;                                                                                    
  server_name_in_redirect off;                                                                            
                                                                                                          
  client_max_body_size 30M;                                                                               
  client_body_buffer_size 512k;                                                                           
                                                                                                          
  gzip on;                                                                                                
  gzip_vary on;                                                                                           
  gzip_comp_level 9;                                                                                      
  gzip_min_length 0;                                                                                      
  gzip_proxied any;                                                                                       
  gzip_disable  "MSIE [1-6]\.";                                                                           
  gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml applic
ation/xml+rss text/javascript application/javascript;                                                     
  gzip_buffers 16 8k;  
  
  server {                                                                                                
    listen       80;                                                                                      
    server_name  _;                                                                                       
    keepalive_timeout 5;                                                                                  
                                                                                                          
   location / {                                                                                           
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;                                         
     proxy_set_header Host $http_host; proxy_redirect off;                                                
     # if you don't find the filename in the static files                                                 
     # then request it from the unicorn server                                                             
    if (!-f $request_filename) {                                                                          
      proxy_pass http://unicorn_server; break;                                                            
    }                                                                                                     
   }                                                                                                      
                                                                                                          
    error_page 500 502 503 504 /500.html;                                                                 
  }                                                                                                       
                                                                                                          
  upstream unicorn_server {                                                                               
    # Path to Unicorn SOCK file which was already defined                                                 
    # this is the socket we configured in unicorn.rb server                                               
    server unix:/var/www/htdocs/html/demo/tmp/unicorn.demo.sock fail_timeout=0;                           
  }                                                                                                       
}