nginx+uwsgi+web.py的部署
1. sudo apt-get install python-dev
5. sudo apt-get install python-webpy
6. sudo apt-get install nginx uwsgi-extra
7. install uwsgi
$ wget http://projects.unbit.it/downloads/uwsgi-latest.tar.gz $ tar zxvf uwsgi-latest.tar.gz $ cd uwsgi-latest/ $ python uwsgiconfig.py --build $ sudo python setup.py install
nginx配置文件:/etc/nginx/nginx.conf
http { ..... server { listen 8080; server_name localhost; location / { include uwsgi_params; uwsgi_param UWSGI_CHDIR /home/pi/www; uwsgi_param UWSGI_SCRIPT hello; uwsgi_pass 127.0.0.1:9002; } location /static/ {
root /home/pi/www;
if (-f $request_filename) {
rewrite ^/static/(.*)$ /static/$1 break;
}
}
} }
重新载入配置:
/path/to/nginx/sbin/nginx -s reload
停止nginx:
/path/to/nginx/sbin/nginx -s stop
-------------------------------------------------------------------------------
2. uwsgi的参数
以上是单个project的最简单化部署,uwsgi还是有很多令人称赞的功能的,例如
并发4个线程
uwsgi -s :9090 -w myapp -p 4 |
主控制线程+4个线程
uwsgi -s :9090 -w myapp -M -p 4 |
执行超过30秒的client直接放弃
uwsgi -s :9090 -w myapp -M -p 4 -t 30 |
限制内存空间128M
uwsgi -s :9090 -w myapp -M -p 4 -t 30 --limit-as 128 |
服务超过10000个req自动respawn
uwsgi -s :9090 -w myapp -M -p 4 -t 30 --limit-as 128 -R 10000 |
后台运行等
uwsgi -s :9090 -w myapp -M -p 4 -t 30 --limit-as 128 -R 10000 -d uwsgi.log |
更多用法见文档:http://projects.unbit.it/uwsgi/wiki/Doc
3.为uwsgi配置多个站点
为了让多个站点共享一个uwsgi服务,必须把uwsgi运行成虚拟站点:去掉“-w myapp”加上”–vhost”
uwsgi -s :9090 -M -p 4 -t 30 --limit-as 128 -R 10000 -d uwsgi.log --vhost |
然后必须配置virtualenv,virtualenv是python的一个很有用的虚拟环境工具,这样安装
apt-get install python-setuptools
easy_install virtualenv
|
然后设置一个/多个app基准环境
virtualenv /var/www/myenv |
应用环境,在此环境下安装的软件仅在此环境下有效
source /var/www/myenv/bin/activate pip install django pip install mako ... |
最后配置nginx,注意每个站点必须单独占用一个server,同一server不同location定向到不同的应用不知为何总是失败,我猜也算是一个bug。
server { listen 80; server_name app1.mydomain.com; location / { include uwsgi_params; uwsgi_pass 127.0.0.1:9090; uwsgi_param UWSGI_PYHOME /var/www/myenv; uwsgi_param UWSGI_SCRIPT myapp1; uwsgi_param UWSGI_CHDIR /var/www/myappdir1; } } server { listen 80; server_name app2.mydomain.com; location / { include uwsgi_params; uwsgi_pass 127.0.0.1:9090; uwsgi_param UWSGI_PYHOME /var/www/myenv; uwsgi_param UWSGI_SCRIPT myapp2; uwsgi_param UWSGI_CHDIR /var/www/myappdir2; } } |
如此这般,重启nginx服务,两个站点就可以共用一个uwsgi服务了。
4.实战应用
最初的设置完毕以后,再添加的应用,只需要在nginx里面进行少量修改,无需重启uwsgi,就能立刻部署完毕。uwsgi自带了基于django的监控uwsgi运行状态的工具,就拿它来部署好了:
server { listen 80; root /var/www/django1.23; index index.html index.htm; server_name uwsgiadmin.django.obmem.info; access_log /var/log/nginx/django.access.log; location /media/ { root /var/www/django1.23/adminmedia; rewrite ^/media/(.*)$ /$1 break; } location / { include uwsgi_params; uwsgi_pass 127.0.0.1:9090; uwsgi_param UWSGI_PYHOME /var/www/django1.23/vtenv; uwsgi_param UWSGI_CHDIR /var/www/django1.23/uwsgiadmin; uwsgi_param UWSGI_SCRIPT uwsgiadmin_wsgi; } } |
于是uwsgi的监控信息可以在http://uwsgiadmin.django.obmem.info 看到用户名密码都是admin。
再比如LBForum论坛程序的部署:根据安装说明安装完毕,再按部署说明修改完配置文件,然后只需修改nginx配置文件:
server { listen 80; root /var/www/django1.23; index index.html index.htm; server_name lbforum.django.obmem.info; access_log /var/log/nginx/django.access.log; location / { include uwsgi_params; uwsgi_pass 127.0.0.1:9090; uwsgi_param UWSGI_PYHOME /var/www/django1.23/vtenv; uwsgi_param UWSGI_CHDIR /var/www/django1.23/LBForum/sites/default; uwsgi_param UWSGI_SCRIPT lbforum_wsgi; } } |
于是 http://lbforum.django.obmem.info 就是论坛程序了。