Home > Article > Backend Development > Five steps to teach you how to deploy Django programs using Nginx+uWSGI+Django method
NOTE: WEB services can also be implemented using only uwsgi+django without using nginx. uwsgi can also handle WEB requests directly.
The first step is to solve the bridge between uwsgi and django. Solve the problem of how to use uwsgi+DJANGO to implement a simple Web server without nginx.
The second step is to solve the bridge between uwsgi and Nginx. Through the bridge between nginx and uwsgi, the connection between nginx and django is opened, so as to realize the deployment of django more perfectly.
Environment introduction
Install uwsgi
<spanpalatino linotype new roman color:rgb>$ <spanpalatino linotype new roman color:rgb>export <spanpalatino linotype new roman color:rgb>LDFLAGS<spanpalatino linotype new roman color:rgb>=<spanpalatino linotype new roman color:rgb>"-Xlinker --no-as-needed"<spanpalatino linotype new roman color:rgb>$ pip install uwsgi </spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino>
Test uwsgi
# test.py def application(env, start_response): start_response('200 OK', [('Content-Type','text/html')]) return "Hello World"
uwsgi --http :8001 --wsgi-file test.py
Configure django
NOTE:
Please ensure that your django project is in normal use. You can use
python manage.py runserver 0.0.0.0:8002
to test whether your django project can run normally.
Note: When writing files, you need to pay attention to the statement os.environ.setdefault. For example, if your project is mysite, your statement should be
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<spanpalatino linotype new roman color:rgb font-style:italic>#!/usr/bin/env python<spanpalatino linotype new roman color:rgb font-style:italic># coding: utf-8<spanpalatino linotype new roman color:rgb font-weight:bold>import<spanpalatino linotype new roman color:rgb font-weight:bold>os<spanpalatino linotype new roman color:rgb font-weight:bold>import<spanpalatino linotype new roman color:rgb font-weight:bold>sys<spanpalatino linotype new roman color:rgb font-style:italic># 将系统的编码设置为UTF8<spanpalatino linotype new roman color:rgb>reload<spanpalatino linotype new roman>(<spanpalatino linotype new roman>sys<spanpalatino linotype new roman>)<spanpalatino linotype new roman>sys<spanpalatino linotype new roman color:rgb>.<spanpalatino linotype new roman>setdefaultencoding<spanpalatino linotype new roman>(<spanpalatino linotype new roman color:rgb>'utf8'<spanpalatino linotype new roman>)<spanpalatino linotype new roman>os<spanpalatino linotype new roman color:rgb>.<spanpalatino linotype new roman>environ<spanpalatino linotype new roman color:rgb>.<spanpalatino linotype new roman>setdefault<spanpalatino linotype new roman>(<spanpalatino linotype new roman color:rgb>"DJANGO_SETTINGS_MODULE"<spanpalatino linotype new roman>,<spanpalatino linotype new roman color:rgb>"mysite.settings"<spanpalatino linotype new roman>)<spanpalatino linotype new roman color:rgb font-weight:bold>from<spanpalatino linotype new roman color:rgb font-weight:bold>django.core.handlers.wsgi<spanpalatino linotype new roman color:rgb font-weight:bold>import<spanpalatino linotype new roman>WSGIHandler<spanpalatino linotype new roman>application<spanpalatino linotype new roman color:rgb>=<spanpalatino linotype new roman>WSGIHandler<spanpalatino linotype new roman>()</spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino></spanpalatino>
连接django和uwsgi,实现简单的Web服务器。
uwsgi --http :8000 --chdir /home/work/src/sites/testdjango1/testdjango/mysite --module django_wsgi
最后:
参考、解释及其它
wsgi: WSGI是一种Web服务器网关接口。它是一个Web服务器(如nginx)与应用服务器(如uWSGI服务器)通信的一种规范。
关于WSGI协议看这里:WSGI
uWSGI: http://uwsgi-docs.readthedocs.org/en/latest/index.html uWSGI是一个Web服务器,它实现了WSGI协议、uwsgi、http等协议。 Nginx中HttpUwsgiModule的作用是与uWSGI服务器进行交换。
uwsgi: uwsgi同WSGI一样是一种通信协议,而uWSGI是实现了uwsgi和WSGI两种协议的Web服务器。
uwsgi协议是一个uWSGI服务器自有的协议,它用于定义传输信息的类型(type of information),每一个uwsgi packet前4byte为传输信息类型描述,它与WSGI相比是两样东西。
关于uwsgi协议看这里:The uwsgi protocol
有了uWSGI为什么还需要nginx?
nginx具备优秀的静态内容处理能力,然后将动态内容转发给uWSGI服务器,这样可以达到很好的客户端响应。
参考文献:http://heipark.iteye.com/blog/1750970
环境介绍
配置uWSGI
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配置Nginx
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Nginx+uWSGI+Django的实现方式
重启Nginx服务器,以使Nginx的配置生效。
nginx -s reload
重启后检查Nginx日志是否有异常。
启动uWSGI服务器
cd /home/work/src/sites/testdjango1/testdjango/mysite uwsgi -x djangochina_socket.xml
检查日志 uwsgi.log 是否有异常发现。
访问服务
基于上面的假设你的域名是www.you.com
因此,我们访问 www.you.com,如果发现程序与 单独使用Django启动的程序一模一样时,就说明成功啦!
关闭服务的方法
将uWSGi进程杀死即可。
一些建议
uWSG配置文件的进程数,可以根据实际情况分配。不要开得太大,否则机器可能会内存耗用太高。一般来说,对于一个小社区来说,4个进程已经足够了。
一般情况下,可以编写一下 stop.sh 脚本 来关闭uWSGI。
以上就介绍了五步教你实现使用Nginx+uWSGI+Django方法部署Django程序,包括了方面的内容,希望对PHP教程有兴趣的朋友有所帮助。