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()