python程序—一键部署keepalived+lvs

一个DS 两个RS

keepalived端在/root下准备好已经修改好的配置文件

import paramiko

# keepalived端 需要修改的信息
keepalived_ip='192.168.150.128'
keepalived_user='root'
keepalived_pwd='root'

# server端lvs 需要修改的信息
vip='192.168.150.150'  #虚拟IP
real_server_ip=['192.168.150.130','192.168.150.131']
real_server_user=['root','root']
real_server_pwd=['root','root']

keepalived_cmd = '''
cp  keepalived.conf  /etc/keepalived/keepalived.conf;
systemctl restart keepalived;
systemctl stop firewalld;
setenforce 0
'''

server_cmd = '''
ifconfig lo:0 {vip} broadcast {vip} netmask 255.255.255.255 up;
route add -host {vip} 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;
systemctl restart httpd;
systemctl stop firewalld;
setenforce 0
'''.format(vip=vip)

# 配置keepalived
def keepalived_server():
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh.connect(hostname=keepalived_ip,port=22,username=keepalived_user,password=keepalived_pwd)
    stdin, stdout, stderr = ssh.exec_command(keepalived_cmd)
    print(stderr.read().decode('utf-8'))
    print(stdout.read().decode('utf-8'))
    ssh.close()
    print('keepalived配置完成！')

# 配置real_server
def real_server():
    k=0
    while k<len(real_server_ip):
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        ssh.connect(hostname=real_server_ip[k],port=22,username=real_server_user[k],password=real_server_pwd[k])
        stdin, stdout, stderr = ssh.exec_command(server_cmd)
        print(stderr.read().decode('utf-8'))
        print(stdout.read().decode('utf-8'))
        ssh.close()
        print('real_server %s 配置完成！'% real_server_ip[k])
        k+=1

def main():
    keepalived_server()
    real_server()

if __name__ == '__main__':
    main()