Batch distribution of commands to host groups with Python multithreading

Requirements: Batch distribution of commands to host groups with multi-threaded python

Script content:

[[Email protected] opt]# cat index.py #!/usr/bin/env python#coding:utf-8import  threadingimport paramikoimport timewhile true:    time.sleep (3)      comd = raw_input (' Please enter the command you want to distribute in bulk: ')     num = 9       #定义IP最后一位数的初始值     def run (n):         private_key_path =  '/root/.ssh/id_rsa '                              #输入Key的路径         key = paramiko. Rsakey.from_private_key_file (Private_key_path)     #获得key          ssh = paramiko. Sshclient ()     #获取连接ssh方法         ssh.set_missing_host_ Key_policy (Paramiko. Autoaddpolicy ())     #获允许连接不在know_hosts文件中的主机          global num                                          #加上global可以在局部变量改全局变量的值                 samp.acquire ()                                       #加上锁, 4 threads simultaneous execution                  num += 1         ip= ' 192.168.200.%s '  %num         #三台机器的IP地址        &nBsp;     ssh.connect (hostname=ip, port=22, username= ' root ',  pkey=key)    #连接相关信息         stdin, stdout, stderr =  ssh.exec_command (COMD)    #执行命令         print  Stdout.read ()                                #输出命令          ssh.close ();                                       #关闭              samp.release ()                                      #解锁              samp = threading. Boundedsemaphore (3)                    #最大连接数, that is, the number of concurrently running threads     for i in range (3):         t = threading. Thread (target=run,args= (i,))         #这里定义了三个线程, the maximum number of connections above is set to three, that is, the three threads will be running concurrently         t.start ()

Execution results show:

650) this.width=650; "Src=" Http://s1.51cto.com/wyfs02/M00/86/55/wKiom1e8B5iwu0hIAAA4SHQ3evY163.png-wh_500x0-wm_3 -wmp_4-s_3796095202.png "title=" qq picture 20160823162139.png "alt=" Wkiom1e8b5iwu0hiaaa4shq3evy163.png-wh_50 "/>

This article is from the "Wsyht blog" blog, make sure to keep this source http://wsyht90.blog.51cto.com/9014030/1841575

Batch distribution of commands to host groups with Python multithreading