##Server Auto Deploy Tool
####设计思想： 目前使用fabric维护服务器的同志应该很多，但是，在我周围的的工作环境中，大都是由运维同学升级和维护服务器， 而使用fabric有学习成本，你不能强求人家用python，多数运维同学还是忠于bash的， 于是乎，就有了写shell脚本，并在远程执行的需求，从此江湖就是一片血雨腥风。
####Usage:
usage: python deploy.py -c config.ini -e exc.ini -u ./package -p /root/downloads/dw
####Config Server config.ini:
config use password
- host,port,user,passwd
config use private key
- tag(default:1),host,port,user,private_key(ssh rsa),encrypt type(rsa,dsa:lowercase)
e.g.
- 127.0.0.1 22 liuzheng bmc
- 127.0.0.1 22 liuzheng /Users/liuzheng/.ssh/id_dsa dsa
- 127.0.0.1 22 liuzheng /Users/liuzheng/.ssh/local_rsa rsa
####Config Exceute Commend exc.ini:
- ls -ls |head -n 10
- grep a . |head -n 10
.....
####Why can’t I run programs in the background with &? It makes paramiko hang.
Run the program under nohup and redirect stdin, stdout and stderr to /dev/null (or to your file of choice, if you need the output later):
run("nohup yes >& /dev/null < /dev/null &") (yes is simply an example of a program that may run for a long time or forever; >&, < and & are Bash syntax for pipe redirection and backgrounding, respectively – see your shell’s man page for details.)
####depend on easy_install paramiko