云友“一滴水2015”想知道 flask 在阿里云的运行示例 ，所以搜索资料，实践如下。
环境：debian 7 64位。在本例，假设flask文件存储在用户aliyun用户目录中。
过程：
1.编辑 /etc/apt/sources.list 内容，以适合当前系统版本：
deb http://mirrors.aliyuncs.com/debian/ wheezy main non-free contrib
deb http://mirrors.aliyuncs.com/debian/ wheezy-updates main non-free contrib
deb http://mirrors.aliyuncs.com/debian/ wheezy-backports main non-free contrib
deb-src http://mirrors.aliyuncs.com/debian/ wheezy main non-free contrib
deb-src http://mirrors.aliyuncs.com/debian/ wheezy-updates main non-free contrib
deb-src http://mirrors.aliyuncs.com/debian/ wheezy-backports main non-free contrib
deb http://mirrors.aliyuncs.com/debian-security/ wheezy/updates main non-free contrib
deb-src http://mirrors.aliyuncs.com/debian-security/ wheezy/updates main non-free contrib
2.更新软件源：
apt-get update
3.安装相关的软件：
apt-get install python-pip python-dev nginx
4.安装 virtualenv
pip install virtualenv
5.切换到 aliyun 用户，创建目录 myapps
su aliyun
mkdir ~/myapps
cd ~/myapps
6.创建虚拟环境：
virtualenv myappsenv
7.激活当前虚拟环境：
source myappsenv/bin/activate
8.安装 uwsgi 和 flask
pip install uwsgi flask
9.创建一个新的测试文件 hello.py ，内容如下：
from flask import Flask
application = Flask(__name__)
@application.route("/")
def hello():
return "<h1 style='color:blue'>Hello Aliyun!</h1>"
if __name__ == "__main__":
application.run(host='0.0.0.0')
10.测试，是否能运行成功：
python hello.py
11.创建 wsgi.py 文件，内容如下：
from hello import application
if __name__ == "__main__":
application.run()
12.运行 uwsgi，看看是否成功：
uwsgi --socket 0.0.0.0:8000 --protocol=http -w wsgi
13.退出python虚拟环境：
deactivate
14.创建uwsgi配置文件 myapp.ini，内容如下：
[uwsgi]
module = wsgi
master = true
processes = 2
uid = aliyun
gid = www-data
socket = myapp.sock
chmod-socket = 660
vacuum = true
die-on-term = true
15.返回到root账户，创建uwsgi启动脚本 /etc/init.d/myapp 内容如下：
#! /bin/sh
### BEGIN INIT INFO
# Provides: myapp
# Should-Start: console-screen dbus network-manager
# Required-Start: $remote_fs $network $local_fs
# Required-Stop: $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start myprogram at boot time
### END INIT INFO
#
PROGRAMNAME="uwsgi"
case "$1" in
start)
/bin/su - aliyun -c "source /home/aliyun/myapps/myappsenv/bin/activate; cd /home/aliyun/myapps; uwsgi --ini myapp.ini" &
;;
stop)
skill $PROGRAMNAME
;;
esac
exit 0
16.为此脚本设置为执行权限，且开机自启动：
chmod +x /etc/init.d/myapp
insserv myapp
17.创建nginx站点配置文件 /etc/nginx/sites-available/myapp ，内容如下：
server {
listen 80;
server_name yun.anqun.org;
location / {
include uwsgi_params;
uwsgi_pass unix:/home/aliyun/myapps/myapp.sock;
}
}
18.启用站点，且将www-data用户加到aliyun组中：
ln -s /etc/nginx/sites-available/myapp /etc/nginx/sites-enabled
usermod -a -G aliyun www-data
19.重启系统，测试是否能访问：
reboot
参数：
