python通过ssh跳转连接mysql

pip3 install sshtunnel　

 

通过ssh跳板机B连接目标主机A

import pymysql
from sshtunnel import SSHTunnelForwarder


server = SSHTunnelForwarder(
    ssh_address_or_host='39.100.88.221',  # 跳板机B地址
    ssh_port=22,  # 跳板机B端口
    ssh_username='',  # 跳板机B账号
    ssh_password='fdfdafdffffff',  # 跳板机B密码
    # local_bind_address=('127.0.0.1', 22),  # 这里必须填127.0.0.1
    remote_bind_address=('rm-vy1c36g83gfff2u6m.mysql.rds.aliyuncs.com', 3306)  # 目标机器A地址，端口
)

server.start()
conn = pymysql.connect(
    host='127.0.0.1',  # 这里必须填127.0.0.1
    port=server.local_bind_port , # 本地映射端口
    user='business', # 目标机器A账号
    password='fdfdsfweweqf', # 目标机器A密码 
    db='business_db' # 目标机器A要连的库 
) 

cursor = conn.cursor()
cursor.execute('select count(*) from cangku') 
ret = cursor.fetchall() 
print(ret) 
conn.close() 
server.stop() # 这里要填stop 
print('stop')

 

补充：
存在local_bind_address=('127.0.0.1', 22),这行代码的时候，有的环境会出现如下问题
MySQLdb._exceptions.OperationalError: (2013, "Lost connection to server at 'handshake: reading initial communication packet', system error: 0")