paramiko建立无密码传输认证

[email protected]:~# python -V
Python 3.4.3

#!/usr/bin/python
# -*- coding:utf-8 -*-
import paramiko
import sys,os
home_dir=os.path.expanduser(‘~‘)
id_rsa_pub=‘%s/.ssh/id_rsa.pub‘ % home_dir
if not id_rsa_pub:
    print(‘id_rsa.pub error!‘)
    sys.exit(0)
def upload_file(hostname,port,user,passwd):
    try:
        s=paramiko.SSHClient()
        s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        s.connect(hostname,port,user,passwd)
        t=paramiko.Transport((hostname,port))
        t.connect(username=user,password=passwd)
        sftp=paramiko.SFTPClient.from_transport(t)
        print(‘create Host:%s .ssh dir......‘ %hostname)
        stdin,stdout,stderr=s.exec_command(‘mkdir ~/.ssh‘)
        print(‘upload id_rsa.pub to Host: %s.....‘ %hostname)
        sftp.put(id_rsa_pub,"/tmp/temp_key")
        stdin,stdout,stderr=s.exec_command(‘cat /tmp/temp_key >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys && rm -f /tmp/temp_key‘)
        print(‘host:%[email protected]%s auth success!\n‘ %(user,hostname))
        t.close()
        s.close()
    except Exception as e:
        import traceback
        traceback.print_exc()
        try:
            t.close()
            s.close()
        except:
            pass
def run():
    with open(‘host.txt‘,‘r‘) as f:
        for i in f:
            f1 = i.split()
            hostname,port,user,passwd = f1
        upload_file(hostname,int(port),user,passwd)
if __name__ =="__main__":
    run()
[email protected]:/data/python_test# cat host.txt 
192.168.31.162		22	root		123456
192.168.31.130		22	root		123456