nginx+uwsgi运行python应用

参考：
http://www.bjhee.com/nginx-uwsgi.html

1、安装uwsgi

pip install uwsgi
(apt install uwsgi)

2、通过http运行一个文件，如test.py
uwsgi --http :80 --wsgi-file test.py --master --processes 4 --threads 2 --stats 127.0.0.1:9090

- -http”参数指定了HTTP监听地址和端口
- -wsgi-file”参数指定了WSGI应用程序入口
uWSGI将启动4个应用进程，每个进程有2个线程，和一个master主进程（监控其他进程状态，如果有进程死了，则重启）
访问”127.0.0.1:9090″来获取JSON格式的应用运行信息

可以把参数写进一个文件中
cat myapp.ini
[uwsgi]
http=:80
wsgi-file=test.py
master=true
processes=4
threads=2
stats=127.0.0.1:9090

启动
uwsgi myapp.ini

3、配置nginx
将uWSGI的HTTP端口监听改为socket端口监听，即将配置文件中的”http”项去掉，改为”socket”项：
[uwsgi]
socket=127.0.0.1:9090
wsgi-file=test.py
master=true
processes=4
threads=2
stats=127.0.0.1:9191

nginx 配置文件中为
location / {
include uwsgi_params;
uwsgi_pass 127.0.0.1:9090;
}

启动

service nginx restart
uwsgi myapp.ini
------------------------------------
cat uwsgi_params
uwsgi_param QUERY_STRING $query_string;
uwsgi_param REQUEST_METHOD $request_method;
uwsgi_param CONTENT_TYPE $content_type;
uwsgi_param CONTENT_LENGTH $content_length;

uwsgi_param REQUEST_URI $request_uri;
uwsgi_param PATH_INFO $document_uri;
uwsgi_param DOCUMENT_ROOT $document_root;
uwsgi_param SERVER_PROTOCOL $server_protocol;
uwsgi_param REQUEST_SCHEME $scheme;
uwsgi_param HTTPS $https if_not_empty;

uwsgi_param REMOTE_ADDR $remote_addr;
uwsgi_param REMOTE_PORT $remote_port;
uwsgi_param SERVER_PORT $server_port;
uwsgi_param SERVER_NAME $server_name;