forked from yindun/ansible-devops
249 lines
8.0 KiB
Bash
249 lines
8.0 KiB
Bash
#!/bin/bash
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# 脚本部署工具 - 下载并配置GPU监控脚本
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set -euo pipefail
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IFS=$'\n\t'
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# 颜色定义
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[0;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # 恢复默认颜色
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# 配置信息
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SCRIPT_URL="http://116.205.97.109/scripts/gpu_metrics.sh" # 脚本下载地址
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TARGET_DIR="/opt/scripts" # 脚本存放目录
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TARGET_SCRIPT="${TARGET_DIR}/gpu_monitor.sh" # 目标脚本路径
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CRON_SCHEDULE="*/2 * * * *" # 定时任务执行频率
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LOG_FILE="/var/log/gpu_monitor.log" # 日志文件路径
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METRICS_DIR="/var/lib/node_exporter/textfile_collector" # 指标文件目录
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METRICS_FILE="${METRICS_DIR}/gpu_metrics.prom" # 指标文件
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NODE_EXPORTER_SERVICE="node_exporter.service" # node_exporter服务名
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# 帮助信息
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show_help() {
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echo -e "${BLUE}用法: $0 [选项]${NC}"
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echo -e "${BLUE}GPU监控脚本部署工具（必须指定--install或--uninstall）${NC}"
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echo ""
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echo -e "${GREEN}选项:${NC}"
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echo -e " ${YELLOW}--install${NC} 安装并配置GPU监控脚本，重启node_exporter"
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echo -e " ${YELLOW}--uninstall${NC} 卸载GPU监控脚本及配置，删除指标文件并重启node_exporter"
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echo -e " ${YELLOW}--help${NC} 显示此帮助信息"
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echo ""
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}
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# 检查是否以root权限运行
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check_root() {
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if [ "$(id -u)" -ne 0 ]; then
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echo -e "${RED}错误: 此脚本需要root权限运行，请使用sudo${NC}" >&2
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exit 1
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fi
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}
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# 检查服务是否存在
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service_exists() {
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systemctl list-units --all --full -t service --no-legend "$1" | grep -q "$1"
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}
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# 重启node_exporter并检查状态
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restart_node_exporter() {
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echo -e "${BLUE}检查node_exporter服务状态...${NC}"
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if service_exists "${NODE_EXPORTER_SERVICE}"; then
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echo -e "${BLUE}正在重启node_exporter服务...${NC}"
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systemctl restart "${NODE_EXPORTER_SERVICE}" || true # 允许失败，不中断流程
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echo -e "${BLUE}检查node_exporter状态...${NC}"
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if systemctl is-active --quiet "${NODE_EXPORTER_SERVICE}"; then
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echo -e "${GREEN}node_exporter状态: 运行中${NC}"
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else
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echo -e "${YELLOW}警告: node_exporter未正常运行，请查看日志：journalctl -u ${NODE_EXPORTER_SERVICE}${NC}" >&2
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fi
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else
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echo -e "${YELLOW}警告: node_exporter服务不存在，跳过重启${NC}" >&2
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fi
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}
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# 安全添加定时任务（避免重复）
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add_cron_job() {
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local cron_line="${CRON_SCHEDULE} ${TARGET_SCRIPT} >> ${LOG_FILE} 2>&1"
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# 检查任务是否已存在（精确匹配）
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if crontab -l 2>/dev/null | grep -qxF "${cron_line}"; then
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echo -e "${YELLOW}定时任务已存在，跳过添加${NC}"
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return 0
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fi
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# 备份现有crontab
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local backup_file="/tmp/crontab_backup_$(date +%s)"
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crontab -l 2>/dev/null > "${backup_file}" || true
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# 添加新任务
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echo -e "${BLUE}添加定时任务: ${cron_line}${NC}"
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(
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crontab -l 2>/dev/null || true # 获取现有crontab（如果有）
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echo "${cron_line}" # 添加新任务
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) | crontab -
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# 验证添加结果
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if crontab -l 2>/dev/null | grep -qxF "${cron_line}"; then
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echo -e "${GREEN}定时任务添加成功${NC}"
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else
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echo -e "${RED}错误: 定时任务添加失败${NC}" >&2
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# 恢复备份
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if [ -f "${backup_file}" ]; then
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crontab "${backup_file}"
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echo -e "${BLUE}已恢复原crontab${NC}"
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fi
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return 1
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fi
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}
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# 安装函数
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install_script() {
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echo -e "${GREEN}===== 开始安装GPU监控脚本 =====${NC}"
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# 1. 清理旧指标文件（避免残留数据）
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echo -e "${BLUE}清理旧指标文件...${NC}"
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if [ -f "${METRICS_FILE}" ]; then
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rm -f "${METRICS_FILE}"
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echo -e "${GREEN}已删除旧指标文件: ${METRICS_FILE}${NC}"
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fi
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# 2. 创建目标目录并下载脚本
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mkdir -p "${TARGET_DIR}"
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cd "${TARGET_DIR}"
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echo -e "${BLUE}正在下载GPU监控脚本...${NC}"
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wget -q -O "${TARGET_SCRIPT}" "${SCRIPT_URL}" || {
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echo -e "${RED}错误: 无法从 ${SCRIPT_URL} 下载脚本${NC}" >&2
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exit 1
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}
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chmod +x "${TARGET_SCRIPT}"
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# 3. 脚本配置（确保GPU总数为8）
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echo -e "${BLUE}配置脚本参数...${NC}"
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sed -i 's/EXPECTED_GPUS=".*"/EXPECTED_GPUS="0 1 2 3 4 5 6 7"/' "${TARGET_SCRIPT}"
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# 4. 准备metrics目录
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mkdir -p "${METRICS_DIR}"
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chmod 755 "${METRICS_DIR}"
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# 5. 配置定时任务（安全添加，避免重复）
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echo -e "${BLUE}配置定时任务...${NC}"
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add_cron_job || exit 1
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# 6. 首次执行脚本生成指标
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echo -e "${BLUE}测试执行脚本...${NC}"
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"${TARGET_SCRIPT}" || {
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echo -e "${RED}错误: 脚本执行失败，请检查日志: ${LOG_FILE}${NC}" >&2
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exit 1
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}
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# 7. 重启node_exporter使配置生效
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restart_node_exporter
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# 8. 验证结果
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echo -e "${GREEN}===== 安装完成 =====${NC}"
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echo -e "${BLUE}脚本位置:${NC} ${TARGET_SCRIPT}"
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echo -e "${BLUE}定时任务:${NC} $(crontab -l | grep "${TARGET_SCRIPT}")"
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echo -e "${BLUE}日志文件:${NC} ${LOG_FILE}"
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echo -e "${BLUE}指标文件:${NC} ${METRICS_FILE}${GREEN}（已生成）${NC}"
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echo -e "${BLUE}node_exporter状态:${NC} $(systemctl is-active "${NODE_EXPORTER_SERVICE}" 2>/dev/null || echo -e "${YELLOW}未安装${NC}")"
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}
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# 卸载函数
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uninstall_script() {
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echo -e "${YELLOW}===== 开始卸载GPU监控脚本 =====${NC}"
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# 1. 移除定时任务
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echo -e "${BLUE}删除定时任务...${NC}"
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local cron_line="${CRON_SCHEDULE} ${TARGET_SCRIPT} >> ${LOG_FILE} 2>&1"
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if crontab -l 2>/dev/null | grep -qxF "${cron_line}"; then
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# 备份现有crontab
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local backup_file="/tmp/crontab_backup_$(date +%s)"
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crontab -l > "${backup_file}"
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# 移除任务
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crontab -l | grep -vxF "${cron_line}" | crontab -
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# 验证移除结果
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if ! crontab -l 2>/dev/null | grep -qxF "${cron_line}"; then
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echo -e "${GREEN}已成功删除定时任务${NC}"
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else
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echo -e "${RED}错误: 定时任务删除失败${NC}" >&2
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# 恢复备份
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crontab "${backup_file}"
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echo -e "${BLUE}已恢复原crontab${NC}"
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exit 1
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fi
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else
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echo -e "${YELLOW}未找到相关定时任务，跳过${NC}"
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fi
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# 2. 删除脚本文件
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echo -e "${BLUE}删除监控脚本...${NC}"
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if [ -f "${TARGET_SCRIPT}" ]; then
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rm -f "${TARGET_SCRIPT}"
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echo -e "${GREEN}已删除脚本: ${TARGET_SCRIPT}${NC}"
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else
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echo -e "${YELLOW}脚本文件不存在，跳过${NC}"
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fi
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# 3. 删除指标文件
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echo -e "${BLUE}删除指标文件...${NC}"
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if [ -f "${METRICS_FILE}" ]; then
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rm -f "${METRICS_FILE}"
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echo -e "${GREEN}已删除指标文件: ${METRICS_FILE}${NC}"
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else
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echo -e "${YELLOW}指标文件不存在，跳过${NC}"
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fi
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# 4. 删除日志文件
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echo -e "${BLUE}删除日志文件...${NC}"
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if [ -f "${LOG_FILE}" ]; then
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rm -f "${LOG_FILE}"
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echo -e "${GREEN}已删除日志文件: ${LOG_FILE}${NC}"
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else
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echo -e "${YELLOW}日志文件不存在，跳过${NC}"
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fi
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# 5. 重启node_exporter
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restart_node_exporter
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# 6. 验证结果
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echo -e "${YELLOW}===== 卸载完成 =====${NC}"
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echo -e "${BLUE}node_exporter状态:${NC} $(systemctl is-active "${NODE_EXPORTER_SERVICE}" 2>/dev/null || echo -e "${YELLOW}未安装${NC}")"
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}
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# 主逻辑
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check_root
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# 参数检查
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if [ $# -ne 1 ]; then
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echo -e "${RED}错误: 必须指定--install或--uninstall${NC}" >&2
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show_help
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exit 1
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fi
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# 执行对应操作
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case "$1" in
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--install)
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install_script
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;;
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--uninstall)
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uninstall_script
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;;
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--help)
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show_help
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exit 0
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;;
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*)
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echo -e "${RED}错误: 未知参数 '$1'${NC}" >&2
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show_help
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exit 1
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;;
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esac
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