Python之路第一课Day9--随堂笔记之一(堡垒机实例以及数据库操作)未完待续....

2021-10-19 14:57:21

一、堡垒机前戏

开发堡垒机之前，先来学习Python的paramiko模块，该模块机遇SSH用于连接远程服务器并执行相关操作

SSHClient

用于连接远程服务器并执行基本命令

基于用户名密码连接：

import paramiko

# 创建SSH对象

ssh = paramiko.SSHClient()

# 允许连接不在know_hosts文件中的主机

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# 连接服务器

ssh.connect(hostname='c1.salt.com', port=22, username='Jerry', password='')

# 执行命令

stdin, stdout, stderr = ssh.exec_command('df')

# 获取命令结果

result = stdout.read()

print(result.decode())

# 关闭连接

ssh.close()

import paramiko

transport = paramiko.Transport(('hostname', 22))

transport.connect(username='Jerry', password='')

ssh = paramiko.SSHClient()

ssh._transport = transport

stdin, stdout, stderr = ssh.exec_command('df')

print stdout.read()

transport.close()

SSHClient 封装 Transport

基于公钥密钥连接：

import paramiko

private_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')

# 创建SSH对象

ssh = paramiko.SSHClient()

# 允许连接不在know_hosts文件中的主机

ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# 连接服务器

ssh.connect(hostname='192.168.1.6', port=22, username='Jerry', pkey=private_key)

# 执行命令

stdin, stdout, stderr = ssh.exec_command('df')

# 获取命令结果

result = stdout.read()

# 关闭连接

ssh.close()

import paramiko

private_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')

transport = paramiko.Transport(('hostname', 22))

transport.connect(username='jerry', pkey=private_key)

ssh = paramiko.SSHClient()

ssh._transport = transport

stdin, stdout, stderr = ssh.exec_command('df')

transport.close()

SSHClient 封装 Transport

SFTPClient

用于连接远程服务器并执行上传下载

基于用户名密码上传下载

import paramiko

transport = paramiko.Transport(('hostname',22))

transport.connect(username='jerry',password='')

sftp = paramiko.SFTPClient.from_transport(transport)

# 将location.py 上传至服务器 /tmp/test.py

sftp.put('/tmp/location.py', '/tmp/test.py')

# 将remove_path 下载到本地 local_path

sftp.get('remove_path', 'local_path')

transport.close()

基于公钥密钥上传下载

import paramiko

private_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')

transport = paramiko.Transport(('hostname', 22))

transport.connect(username='jerry', pkey=private_key )

sftp = paramiko.SFTPClient.from_transport(transport)

# 将location.py 上传至服务器 /tmp/test.py

sftp.put('/tmp/location.py', '/tmp/test.py')

# 将remove_path 下载到本地 local_path

sftp.get('remove_path', 'local_path')

transport.close()

#!/usr/bin/env python

# -*- coding:utf-8 -*-

import paramiko

import uuid

class Haproxy(object):

    def __init__(self):

        self.host = '172.16.103.191'

        self.port = 22

        self.username = 'wupeiqi'

        self.pwd = ''

        self.__k = None

    def create_file(self):

        file_name = str(uuid.uuid4())

        with open(file_name,'w') as f:

            f.write('sb')

        return file_name

    def run(self):

        self.connect()

        self.upload()

        self.rename()

        self.close()

    def connect(self):

        transport = paramiko.Transport((self.host,self.port))

        transport.connect(username=self.username,password=self.pwd)

        self.__transport = transport

    def close(self):

        self.__transport.close()

    def upload(self):

        # 连接，上传

        file_name = self.create_file()

        sftp = paramiko.SFTPClient.from_transport(self.__transport)

        # 将location.py 上传至服务器 /tmp/test.py

        sftp.put(file_name, '/home/wupeiqi/tttttttttttt.py')

    def rename(self):

        ssh = paramiko.SSHClient()

        ssh._transport = self.__transport

        # 执行命令

        stdin, stdout, stderr = ssh.exec_command('mv /home/wupeiqi/tttttttttttt.py /home/wupeiqi/ooooooooo.py')

        # 获取命令结果

        result = stdout.read()

ha = Haproxy()

ha.run()

Demo

码农公寓

一、堡垒机前戏

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