如何高效实现VPS批量重启和登录操作？

如何批量重启和登录VPS？高效管理多台服务器的完整方案

# 生成SSH密钥对
ssh-keygen -t rsa -b 4096 -C "youremail@example.com"
将公钥复制到目标VPS
ssh-copy-id -i ~/.ssh/idrsa.pub user@vps-ip-address
测试免密码登录
ssh user@vps-ip-address

#!/bin/bash
VPS批量重启脚本
定义VPS列表文件
VPSLIST="vpslist.txt"
读取VPS列表并逐个重启
while IFS= read -r line
do
    echo "正在重启: $line"
    ssh -o ConnectTimeout=10 root@"$line" "sudo reboot"
    
    # 检查执行结果
    if [ $? -eq 0 ]; then
        echo "$line 重启命令执行成功"
    else
        echo "$line 重启命令执行失败"
    fi
    echo "------------------------"
done < "$VPSLIST"

192.168.1.100
192.168.1.101
192.168.1.102
vps-domain.com

# inventory.yml
[webservers]
web1 ansiblehost=192.168.1.100
web2 ansiblehost=192.168.1.101
web3 ansiblehost=192.168.1.102
[allservers:children]
webservers

# 批量重启playbook（restartservers.yml）

name: 批量重启VPS服务器

  hosts: allservers
  gatherfacts: no
  tasks:

name: 发送重启命令

      ansible.builtin.command:
        cmd: sudo reboot
      async: 1
      poll: 0
      ignoreerrors: yes

name: 等待服务器恢复

      ansible.builtin.waitfor:
        host: "{{ ansiblehost }}"
        port: 22
        state: started
        delay: 60
        timeout: 300

ansible-playbook -i inventory.yml restartservers.yml

步骤四：批量登录验证

#!/bin/bash
批量登录验证脚本
VPSLIST="vpslist.txt"
while IFS= read -r line
do
    echo "验证服务器: $line"
    
    # 检查SSH连接
    ssh -o ConnectTimeout=30 -o BatchMode=yes root@"$line" "
        echo '主机名: ' \$(hostname)
        echo '运行时间: ' \$(uptime)
        echo '服务状态:'
        systemctl status nginx --no-pager || echo 'Nginx未安装'
        echo '磁盘使用:'
        df -h | grep -v tmpfs
    "
    
    echo "================================"
done < "$VPSLIST"