python-多线程批量管理主机

最新推荐文章于 2023-05-27 15:39:16 发布

原创最新推荐文章于 2023-05-27 15:39:16 发布 · 319 阅读

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本文介绍了一种使用Python的threading模块和paramiko库实现多线程批量管理SSH主机的方法。通过继承threading.Thread类创建IpThread，可以并行地在多个主机上执行命令，如检查主机名。此方法提高了大规模主机管理的效率。

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多线程批量管理主机: 利用threading.Thread继承的方式实现.

import threading
import paramiko
from paramiko.ssh_exception import NoValidConnectionsError, AuthenticationException

class IpThread(threading.Thread):
    def __init__(self,cmd,hostname,port=22,user='root'):
        super(IpThread, self).__init__()
        self.cmd=cmd
        self.hostname=hostname
        self.port=port
        self.user=user
    def run(self):
        client = paramiko.SSHClient()
        private_key = paramiko.RSAKey.from_private_key_file('id_rsa')
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        try:
            client.connect(hostname=self.hostname,
                           port=self.port,
                           username=self.user,
                           pkey=private_key
                           )
            stdin, stdout, stderr = client.exec_command(self.cmd)
        except NoValidConnectionsError as e:
            print("%s连接失败" % (self.hostname))
        except AuthenticationException as e:
            print("%s密码错误" % (self.hostname))
        except TimeoutError as  e:
            print("%s连接超时" % (self.hostname))
        else:
            result = stdout.read().decode('utf-8')
            print('%s' % (self.hostname), result)
        finally:
            client.close()
def use_thread():
    threads = []
    ips = ['172.25.254.%s' %(i)  for i in range(1,254)]
    for ip in ips:
        t = IpThread(cmd='uname',hostname=ip)
        threads.append(t)
        t.start()
    [thread.join() for thread in threads]
if __name__ == '__main__':
    use_thread()

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