forked from yindun/ansible-devops
113 lines
3.8 KiB
Bash
113 lines
3.8 KiB
Bash
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#!/bin/bash
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# 配置参数（可根据需要修改）
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SCRIPT_URL="http://116.205.97.109/scripts/set_ip.sh" # 脚本下载地址
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DEST_PATH="/opt/set_ip.sh" # 脚本保存路径
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UDEV_RULES_PATTERN="/etc/udev/rules.d/70-persistent-*" # 匹配所有70-persistent-开头的文件
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DEST_UDEV_DIR="/opt/" # udev规则文件的目标目录
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NETPLAN_CONFIG="/etc/netplan/00-installer-config.yaml" # netplan配置文件
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# 函数：错误处理
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error_exit() {
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echo "$1" 1>&2
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exit 1
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}
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# 函数：检查是否以root权限运行
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check_root() {
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if [ "$(id -u)" -ne 0 ]; then
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error_exit "错误：请使用root权限运行此脚本（sudo）"
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fi
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}
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# 函数：下载配置脚本
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download_script() {
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echo "正在下载脚本到$DEST_PATH..."
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if command -v wget &> /dev/null; then
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wget -q -O "$DEST_PATH" "$SCRIPT_URL" || error_exit "下载脚本失败（wget）"
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elif command -v curl &> /dev/null; then
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curl -s -o "$DEST_PATH" "$SCRIPT_URL" || error_exit "下载脚本失败（curl）"
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else
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error_exit "错误：未找到wget或curl，请先安装其中一个工具"
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fi
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# 验证下载结果
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[ -f "$DEST_PATH" ] || error_exit "错误：脚本下载后文件不存在"
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}
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# 函数：设置脚本权限
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set_script_permissions() {
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echo "设置脚本权限..."
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chmod +x "$DEST_PATH" || error_exit "设置脚本可执行权限失败"
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}
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# 函数：处理所有70-persistent-开头的udev规则文件
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handle_udev_rules() {
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echo "处理所有70-persistent-开头的udev规则文件..."
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# 检查是否存在匹配的文件
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shopt -s nullglob # 避免无匹配时返回通配符本身
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local udev_files=($UDEV_RULES_PATTERN)
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shopt -u nullglob # 恢复默认行为
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if [ ${#udev_files[@]} -eq 0 ]; then
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error_exit "错误：未找到任何以70-persistent-开头的udev规则文件（路径：/etc/udev/rules.d/）"
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fi
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# 确保目标目录存在
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[ -d "$DEST_UDEV_DIR" ] || mkdir -p "$DEST_UDEV_DIR" || error_exit "创建目标目录$DEST_UDEV_DIR失败"
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# 拷贝所有匹配的文件到目标目录
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cp "${udev_files[@]}" "$DEST_UDEV_DIR" || error_exit "拷贝udev规则文件失败"
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# 为所有拷贝的文件设置权限
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chmod 644 "$DEST_UDEV_DIR"70-persistent-* || error_exit "设置udev规则文件权限失败"
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echo "成功拷贝${#udev_files[@]}个udev规则文件到$DEST_UDEV_DIR"
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}
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# 函数：添加计划任务
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add_cron_job() {
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echo "添加计划任务..."
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# 先检查是否已存在相同任务，避免重复添加
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if ! crontab -l | grep -q "$DEST_PATH"; then
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(crontab -l 2>/dev/null; echo "@reboot bash $DEST_PATH > /tmp/ip_tmp.log 2>&1") | crontab - || error_exit "添加计划任务失败"
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fi
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# 验证计划任务
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crontab -l | grep -q "$DEST_PATH" || error_exit "错误：计划任务添加后未生效"
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echo "计划任务添加成功"
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}
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# 函数：修改netplan网络配置
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modify_netplan_config() {
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echo "修改网络配置文件..."
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# 备份配置
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cp "$NETPLAN_CONFIG" "${NETPLAN_CONFIG}.bak2" || error_exit "备份netplan配置失败"
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# 修改IP地址
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sed -i '/^ addresses:$/,/^ interfaces:/ s/^ - [0-9.]\+\/[0-9]\+/ - 0.0.0.0\/0/' "$NETPLAN_CONFIG" || error_exit "修改IP地址失败"
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# 修改网关
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sed -i '/^ - to: default$/!b;n;s/^ via: [0-9.]\+/ via: 0.0.0.0/' "$NETPLAN_CONFIG" || error_exit "修改网关失败"
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}
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# 主函数：串联所有操作
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main() {
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echo "开始执行配置脚本..."
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# 按顺序执行各步骤
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check_root
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download_script
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set_script_permissions
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handle_udev_rules
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add_cron_job
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modify_netplan_config
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echo "所有操作执行完成！"
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exit 0
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}
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# 启动主函数
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main
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