python 部署lvs

import paramiko

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

def direct_server():
ssh.connect('192.168.200.12', 22, 'root', 'root',timeout=3)
stdin, stdout, stderr = ssh.exec_command('ipvsadm -C;'
'ipvsadm -A -t 192.168.200.250:80 -s wrr;'
'ipvsadm -a -t 192.168.200.250:80 -r 192.168.254.20:80 -w 1 -g;'
'ipvsadm -a -t 192.168.200.250:80 -r 192.168.254.25:80 -w 2 -g;'
'ifconfig ens33:0 192.168.200.250 broadcast 192.168.200.250 netmask 255.255.255.255 up;'
'route add -host 192.168.200.250 dev ens33:0')
print(stderr.read().decode('utf-8'))
print(stdout.read().decode('utf-8'))
print('dicret_server配置完成！！！')

def real_server1():
ssh.connect('192.168.200.20', 22, 'root', 'root', timeout=3)
stdin, stdout, stderr = ssh.exec_command('ifconfig lo:0 192.168.200.250 broadcast 192.168.200.250 netmask 255.255.255.255 up;'
'route add -host 192.168.200.250 dev lo:0;'
'echo "1">/proc/sys/net/ipv4/conf/lo/arp_ignore;'
'echo "2">/proc/sys/net/ipv4/conf/lo/arp_announce;'
'echo "1">/proc/sys/net/ipv4/conf/all/arp_ignore;'
'echo "2">/proc/sys/net/ipv4/conf/all/arp_announce;'
'service httpd restart')
print(stderr.read().decode('utf-8'))
print(stdout.read().decode('utf-8'))
print('real_server1配置完成！！！')

def real_server2():
ssh.connect('192.168.200.25', 22, 'root', 'root', timeout=3)
stdin, stdout, stderr = ssh.exec_command(
'ifconfig lo:0 192.168.200.250 broadcast 192.168.200.250 netmask 255.255.255.255 up;'
'route add -host 192.168.200.250 dev lo:0;'
'echo "1">/proc/sys/net/ipv4/conf/lo/arp_ignore;'
'echo "2">/proc/sys/net/ipv4/conf/lo/arp_announce;'
'echo "1">/proc/sys/net/ipv4/conf/all/arp_ignore;'
'echo "2">/proc/sys/net/ipv4/conf/all/arp_announce;'
'service httpd restart')
print(stderr.read().decode('utf-8'))
print(stdout.read().decode('utf-8'))
print('real_server2配置完成！！！')

def main():
direct_server()
real_server1()
real_server2()
ssh.close()

if __name__ == '__main__':
main()