利用python实现批量自动化运维脚本案例

本文为通过密码或密钥实现python批量自动化运维脚本案例分享，是老男孩linux培训 python课程教学案例内容，后续会分享多线程并发执行这个脚本的更高级的功能(http://oldboy.blog.51cto.com/2561410/1221605)，敬请关注！

#!/usr/bin/env python
# this script comes from beijing oldboy trainning.
# e_mail:[email protected]
# function: remote multi exec cmd by ssh.
# version:1.1
################################################
# oldboy trainning info.
# QQ 80042789 70271111
# site:http://www.etiantian.org
# blog:http://oldboy.blog.51cto.com
# oldboy trainning QQ group: 208160987 45039636
################################################
import paramiko
import socket
import sys,os
host = sys.argv[1]
user = sys.argv[2]
port = int(sys.argv[3])
auth_method = sys.argv[4]
if auth_method == 'PASSWORD':
    password = sys.argv[5]
    cmd = sys.argv[6]
else:
    cmd = sys.argv[5]
    s = paramiko.SSHClient()
    s.load_system_host_keys()
    s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
#pkey_file = '/home/alex/.ssh/id_rsa'
#key = paramiko.RSAKey.from_private_key_file(pkey_file)
#s.connect(host,port,username,pkey=key,timeout=5)
try:
if auth_method == 'SSH_KEY':
    pkey_file = '/home/alex/.ssh/id_rsa'
    key = paramiko.RSAKey.from_private_key_file(pkey_file)
    s.connect(host,port,user,pkey=key,timeout=5)
elif auth_method == 'PASSWORD':
    s.connect(host,port,user,password,timeout=5)
    stdin,stdout,stderr = s.exec_command(cmd)
    cmd_result = stdout.read(),stderr.read()
print "--------Result from? %s -------" % host
for line in cmd_result:
    print line,
s.close()
except paramiko.AuthenticationException:
    print "\033[31;1m%s Authentication Error!\033[0m" % host
except socket.error:
    print "\033[31;1m%s Connection Refused!\033[0m" % host

执行命令：
python batch_ssh.py 10.0.0.8 oldboy 22 SSH_KEY  df
python batch_ssh.py 10.0.0.9 root   33 PASSWORD 123456 df