python的paramiko模块介绍

[root@yaoliang ~]# pip install paramiko

import paramiko
 
ssh = paramiko.SSHClient()                      # 创建客户端连接服务端的对象
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # 允许连接不在know_hosts文件中的主机
ssh.connect(ip,port,username,password)          # 连接远程服务器

import paramiko
 
tus = (ip, port)
t = paramiko.Transport(tus)                     # 创建传输对象
t.connect(username=self.username, password=self.password)

tus = (ip, port)
t = paramiko.Transport(tus)
t.connect(username=username, password=password)
sftp = paramiko.SFTPClient.from_transport(t)    # 创建下载传输对象
sftp.get(localpath, remotepath)                 # 下载
sftp.put(localpath, remotepath)                 # 上传
t.close()

import paramiko
from switch import switch_ip, switch_pwd, switch_username
from lib.read_ini import config
from lib.logsys import LogSys
import threading
import time
 
class UpDate(object):
 
    def __init__(self, dev, pname):
        self.cf = config()
        self.log = LogSys()                   
        self.pname = pname
        self.ip = switch_ip(dev)              # 根据dev获取远程服务器ip
        self.username = switch_username(dev)  # 获取用户名
        self.password = switch_pwd(dev)       # 获取密码
        self.port = int(self.cf.getvalue('server_conf', 'port'))
        self.localpath = self.cf.getvalue('write_path', 'upfilepath') + self.pname + ".zip"
        self.remotepath = self.cf.getvalue('write_path', 'topath') + self.pname + ".zip"
 
    def __trans_file(self):                   # 文件传输
        try:
            tus = (self.ip, self.port)
            t = paramiko.Transport(tus)       # 创建传输对象
            t.connect(username=self.username, password=self.password)  # 连接远程服务器
            sftp = paramiko.SFTPClient.from_transport(t)  # 创建下载传输对象
            sftp.put(self.localpath, self.remotepath)     # 上传文件
            t.close()
            print "trans_ok"
            return 5
        except Exception, e:
            print "put_file:" + str(e)
            return 0
 
    def __excuteup(self):                     # 远程操作
        ssh = paramiko.SSHClient()
        comm = '/root/test.sh ' + self.pname
        try:
            ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
            ssh.connect(self.ip,self.port,self.username,self.password,timeout=10) # 连接远程服务器
            stdin, stdout, stderr = ssh.exec_command(comm)  # 执行远程服务器上的脚本
            out = stdout.readlines()
            ssh.close()
            return 5
        except Exception, e:
            errmsg =  "excuteup Error.__excute" + str(e)
            ssh.close()
            self.log.writelog(errmsg)         # 将错误信息保存到日志
            return 0
 
    def runup(self):                          # 执行上传和远程执行命令的操作
        if self.__trans_file():
            if self.__excuteup():
                print "update success."
                return 5
            else:
                print "trans OK. excute ERR!"
                return 1
        else:
            return 1