编写自动化脚本来配置设备 [英] Writing Automated scripts to configure device

问题描述

我的需求是这样的:

我需要登录到远程设备(比如路由器/交换机)并执行以下命令.

I need to log in to a remote device (say Router/switch) and execute following commands.

telnet xx.xx.xx.xx
//give password here
sys
interface g x/x/x
shut
desc free-port
exit

有数百种设备，我不能浪费时间做 100 次以上该死的事情.我需要编写一个自动脚本来完成它.所以我的问题如下:

There are Hundreds of devices for which I cannot waste time doing above damn thing 100 times. I need to write a automated script which does it. so My questions are as follows:

1. 我使用 Windows 系统，所以最好使用什么脚本语言:Ruby/shell script/perl ?(我以前是 ROR 开发人员，所以我知道 Ruby、Linux 终端.现在我在网络领域工作.)
2. 我的想法是:将所有设备放入一个数组并使用 for 循环，一个一个调用设备并执行上述命令.
3. 我没有脚本方面的知识，所以请进一步指导我.我不知道从哪里开始.

1. I use Windows system, so What is the best scripting language to be used : Ruby / shell script / perl ? (I was formerly ROR Developer, so i know Ruby, Linux terminal. Now I am working in networking domain. )
2. What I thought was : Put all Devices into an array and using for loop, call devices one by one and execute above said commands.
3. I don't have knowledge of scripting, so please guide me further. I don't know where to start from.

推荐答案

第一步:决定程序的文件结构.

比如这是最简单的结构

Step 1: decide the file structure of your program.

For example, this is the simplest structure

if_admin/
    |--config.yml
    |--run.rb

第 2 步:编写一个或一堆配置文件，其中包含您需要在目标上运行的命令的不同部分.

例如，您可以使用这样的 yaml 文件:

Step 2: write a config file or a bunch of config files that contain the different parts of the commands you need to run on the targets.

For example, you can use a yaml file like this:

xx.xx.xx.xx:
  password: s3cret 
  router-shelf: x
  slot: x
  port: x
yy.yy.yy.yy:
  ...

第 3 步:实施您想做的事情

require 'yaml'
require 'net/telnet'

config = YAML.load_file('./config.yml')
config.each do |host, conf|
  telnet = Net::Telnet.new('Host' => host)
  telnet.login(conf['password'])
  telnet.puts <<-CMD
    sys
    interface g #{conf['router-shelf']}/#{conf['slot']}/#{conf['port']}
    shut
    desc free-port
  CMD
  telnet.close
end

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