goto让服务器登录不再是烦恼

场景

当我们维护一些服务器的时候，经常会面临密码呀端口账号呀啥的问题，使得维护时麻烦不小，再加上有时候网络不稳定，SA的脾气就更大了。

解决方案

简单的几个脚本

goto > 用户交互入口

denglu > 采用goto传过来的参数，使用expect命令进行模拟登陆

list > 服务器密码资源列表

goto

#!/usr/bin/env python
#coding: utf8

import os,sys,re
import subprocess
import datetime

host = sys.argv[1]

if host == "list":
    print "进入"
    for line in open("./list"):
        result = re.findall("(\S+)",line)
    #print len(result)
        if len(result) >=5:
        print "%s %s"%(result[0],result[5])
    sys.exit()

matchedline = []
for line in open("/Users/jacky/bin/list"):
    result = re.findall(host,line)
    if len(result) == 1:
        matchedline.append(line)

if len(matchedline) == 1:
    secretline=matchedline[0]
    print "Found the machted line."
    value = re.findall("\S+",secretline)
    if len(value) >= 5:
        print "... Mached Line Found!!!"
    #    print value
    else:
        print "Please check your config file list."
        exit(1)
    #print value
    host = value[0]
    passwd = value[1]
    port = value[2]
    user = value[3]
    prompt = value[4]
    if len(value) >= 6:
        description = value[5]
    #print host
    #print passwd
    #print port
    #print user
    print "Welcome Login --> %s"%(description)
    #os.system("/Users/jacky/bin/denglu2 %s \'%s\' %s %s \"%s\""%(host, passwd,port,user,prompt))
    os.system("/Users/jacky/bin/denglu2 %s \'%s\' %s %s \"%s\""%(host, passwd,port,user,prompt))
else:
    print "No Not Find Matched. Exit............."

denglu2

#!/usr/bin/expect -f 

log_file /tmp/1.txt

# This is very important.
set HOST [lindex $argv 0]
set serverpassword [lindex $argv 1]
set port [lindex $argv 2]
set user [lindex $argv 3]
set prompt [lindex $argv 4]
set timeout 2

#send_user "$serverpassword"
#exit

# connect via ssh
spawn ssh -o StrictHostKeyChecking=no $user@$HOST -p $port

#######################
expect {
    -re "yes/no.*" {
        exp_send "yes\r"
        exp_continue
    }
}

expect {
    -re "password:.*" {
        exp_send "$serverpassword"
        exp_send "\r"
    }
    -re "$prompt.*" {
        interact
    exit
    }
    -re "password:.*" {
        exp_send "$serverpassword"
        exp_send "\r"
    }
}

expect {
    -re "$prompt.*" {
    interact
    exit
    }
}

list

格式如下

IP地址    密码  端口  账户  （>或者$或者#提示符） 描述

使用

goto 唯一定位到条目（地址呀 描述呀 账号呀啥的）