自动批量对linux服务器安装配置NTP服务

柔光的暖阳◎ 2023-01-22 05:58 153阅读 0赞

最近项目上新上了2台时钟设备，需要把网络内的一百多台linux服务器配置NTP服务，实现和时钟设备时间同步，为了避免每台设备挨个配置的麻烦，写了一个python脚本。脚本分3个文件，第一个是python脚本，第二个是主机清单，里面包含IP地址和密码两项，第三个是命令文件，包含从yum安装ntp软件包到配置ntp.conf参数文件到启动NTP服务所要执行的操作语句。执行脚本，调用这个两个文件，网络内的所有服务器NTP安装配置起服务就完成了。事实上这个脚本可以做各种批量操作，只需要改一下命令文件即可，脚本不用做任何更改。

cat cmd\_list.txt

\#\#\#配置NTP文件

mv /etc/ntp.conf /etc/ntp.conf.bak

echo ‘server 192.168.5.200’ >> /etc/ntp.conf

echo ‘Fudge 192.168.5.200 stratum 10’ >> /etc/ntp.conf

\#\#\#安装NTP软件包并启动NTP服务

rm /etc/yum.repos.d/\*.repo

echo ‘\[ol7\_u5\_base\]’ >> /etc/yum.repos.d/local.repo

echo ‘name=Oracle Linux’ >> /etc/yum.repos.d/local.repo

echo ‘baseurl=http://192.168.5.250/redhat7’ >> /etc/yum.repos.d/local.repo

echo ‘gpgkey=http://192.168.5.250/redhat7/RPM-GPG-KEY-redhat-release’ >> /etc/yum.repos.d/local.repo

echo ‘gpgcheck=1’ >> /etc/yum.repos.d/local.repo

echo ‘enabled=1’ >> /etc/yum.repos.d/local.repo

yum install -y ntp\*

systemctl start ntpd

systemctl enable ntpd

cat host.txt

192.168.5.1 pass1

192.168.5.2 pass2

…

192.168.5.254 pass254

cat auto\_ntp.py

import paramiko

import time

import sys

import socket

host = open(sys.argv\[1\])

host\_list = \[\]

username=“root”

for hosta in host.readlines():

host_list.append(hosta.strip().split())

f = open(‘log.txt’, ‘a’)

cmd = open(sys.argv\[2\])

for hostname,password in host\_list:

ssh_client = paramiko.SSHClient()
    
    ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    
    try:
    
       ssh_client.connect(hostname=hostname, username=username, password=password)
    
       print("Successfull connected to ", hostname)
    
       cmd.seek(0)
    
       stdin, stdout, stderr = ssh_client.exec_command('hostname')
    
       f.write(hostname + ' ' + stdout.read().decode('utf-8') + "\n")
    
       for ccc in cmd.readlines():
    
           c = ccc.strip()
    
           stdin, stdout, stderr = ssh_client.exec_command(c)
    
           f.write(stdout.read().decode('utf-8') + "\n")
    
           f.write(stderr.read().decode('utf-8') + "\n")
    
    except paramiko.ssh_exception.AuthenticationException:
    
           print("User authentication failed for " + username)
    
    except socket.error:
    
           print(hostname + " is not reachable.")

cmd.close()

f.close()

ssh\_client.close()

执行：

python auto\_ntp.py host.txt cmd\_list.txt

批量做其他任意操作均可，只要修改cmd\_list.txt文件中的操作语句即可

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