uwsgi是什么： 

/etc/uwsgi/apps-enabled/xxx.xml  主要告诉uwsgi建立一个socket，接收nginx的fast cgi并处理。

配置一个站点实例：

<uwsgi id="monitor">  
  <socket>127.0.0.1:9090</socket>  
  <master />  
  <home>/var/wsgi/</home>
  <chdir>/var/wsgi/monitor</chdir>  
  <plugins>python</plugins>
  <wsgi-file>/var/wsgi/monitor/main.py</wsgi-file>
  <processes>2</processes>  
  <workers>4</workers>  
  <memory-report/>  
  <pidfile>/tmp/uwsgi_myapp.pid</pidfile>  
  <max-requests>10000</max-requests>  
  <daemonize>/var/log/monitor.log</daemonize>   
</uwsgi>  

nginx相应配置：

server {
	listen 80;
	# listen [::]:80 ipv6only=on;
	index index.html index.htm;
	# Make site accessible from http://localhost/
	server_name localhost;
  //app static files go here
  location /monitor/static/ {
		alias /var/wsgi/monitor/templates/static/;
  }
  //global static files go here
  location /static/ {
		alias /var/wsgi/static/;
  }
  //match other urls, pass it to localhost:9090 (uwsgi)
  location  / {
		# First attempt to serve request as file, then
		# as directory, then fall back to displaying a 404.
		# try_files $uri $uri/ =404;
		# Uncomment to enable naxsi on this location
		# include /etc/nginx/naxsi.rules
		include /etc/nginx/uwsgi_params;
    uwsgi_pass 127.0.0.1:9090;

常见错误：

nginx
+ uwsgi: — unavailable modifier requested: 0 --

plugin未设置(python)..

<uwsgi id="monitor">  
  <socket>127.0.0.1:9090</socket>  
	 <master />  
  <home>/var/wsgi/</home>
  <chdir>/var/wsgi/monitor</chdir>  
	<!-- if your virtualenv has this plugin, then you should comment this-->
	<!-- or, you have to uncomment it -->
  <!-- <plugins>python</plugins> -->
  <wsgi-file>/var/wsgi/monitor/main.py</wsgi-file>
  <processes>2</processes>  
  <workers>4</workers>  
  <memory-report/>  
  <pidfile>/tmp/uwsgi_myapp.pid</pidfile>  
  <max-requests>10000</max-requests>  
  <daemonize>/var/log/monitor.log</daemonize>   
</uwsgi>