nginx server block = sites-enabled + gunicorn

nginx_gunicorn.conf

# You may add here your
# server {
#  ...
# }
# statements for each of your virtual hosts to this file

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

server {
	listen   80; ## listen for ipv4; this line is default and implied
	#listen   [::]:80 default ipv6only=on; ## listen for ipv6
	server_name example.com;

  root /var/www/example.com/example;

  access_log /var/www/example.com/access.log;
  error_log /var/www/example.com/error.log;

	# Make site accessible from http://localhost/

	location / {
		# First attempt to serve request as file, then
		# as directory, then fall back to index.html
		#try_files $uri $uri/ /index.html;

		try_files $uri @gunicorn_app;
		# Uncomment to enable naxsi on this location
		# include /etc/nginx/naxsi.rules
	}

	# Make nginx go to gunicorn app.
	# this is a custon configuration.
	location @gunicorn_app {
		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header Host $http_host;
		proxy_redirect off;
		proxy_pass http://127.0.0.1:8000;
	}

	location /doc/ {
		alias /usr/share/doc/;
		autoindex on;
		allow 127.0.0.1;
		deny all;
	}

	# Only for nginx-naxsi : process denied requests
	#location /RequestDenied {
		# For example, return an error code
		#return 418;
	#}

	#error_page 404 /404.html;

	# redirect server error pages to the static page /50x.html
	#
	#error_page 500 502 503 504 /50x.html;
	#location = /50x.html {
	#	root /usr/share/nginx/www;
	#}

	# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
	#
	#location ~ \.php$ {
	#	fastcgi_split_path_info ^(.+\.php)(/.+)$;
	#	# NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
	#
	#	# With php5-cgi alone:
	#	fastcgi_pass 127.0.0.1:9000;
	#	# With php5-fpm:
	#	fastcgi_pass unix:/var/run/php5-fpm.sock;
	#	fastcgi_index index.php;
	#	include fastcgi_params;
	#}
	## Parse all .php file in the /var/www directory
    #location ~ .php$ {
     #   fastcgi_split_path_info ^(.+\.php)(.*)$;
      #  fastcgi_pass   backend;
       # fastcgi_index  index.php;
       # fastcgi_param  SCRIPT_FILENAME  /var/www$fastcgi_script_name;
       # include fastcgi_params;
       # fastcgi_intercept_errors        on;
       # fastcgi_ignore_client_abort     off;
       # fastcgi_connect_timeout 60;
       # fastcgi_send_timeout 180;
       # fastcgi_read_timeout 180;
       # fastcgi_buffer_size 128k;
       # fastcgi_buffers 4 256k;
       # fastcgi_busy_buffers_size 256k;
       # fastcgi_temp_file_write_size 256k;
   # }

location ~ \.php$ {
    fastcgi_pass   127.0.0.1:9000;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME  /var/www/nginx-default/$fastcgi_script_name;
    include fastcgi_params;
}

## Disable viewing .htaccess & .htpassword
    location ~ /\.ht {
        deny  all;
    }

#upstream backend {
#        server 127.0.0.1:9000;
#}

	# deny access to .htaccess files, if Apache's document root
	# concurs with nginx's one
	#
	#location ~ /\.ht {
	#	deny all;
	#}
}


# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#	listen 8000;
#	listen somename:8080;
#	server_name somename alias another.alias;
#	root html;
#	index index.html index.htm;
#
#	location / {
#		try_files $uri $uri/ /index.html;
#	}
#}


# HTTPS server
#
#server {
#	listen 443;
#	server_name localhost;
#
#	root html;
#	index index.html index.htm;
#
#	ssl on;
#	ssl_certificate cert.pem;
#	ssl_certificate_key cert.key;
#
#	ssl_session_timeout 5m;
#
#	ssl_protocols SSLv3 TLSv1;
#	ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv3:+EXP;
#	ssl_prefer_server_ciphers on;
#
#	location / {
#		try_files $uri $uri/ /index.html;
#	}
#}