82 lines
2.6 KiB
Bash
82 lines
2.6 KiB
Bash
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#!/usr/bin/env bash
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# Nexus — 安装/更新 host crontab：health_monitor + db_backup
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#
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# sudo bash deploy/install_ops_cron.sh
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# NEXUS_ROOT=/opt/nexus sudo bash deploy/install_ops_cron.sh
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set -euo pipefail
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NEXUS_ROOT="${NEXUS_ROOT:-/opt/nexus}"
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DEPLOY_DIR="${NEXUS_ROOT}/deploy"
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HEALTH_MARKER="nexus-health-monitor"
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BACKUP_MARKER="nexus-mysql-backup"
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HEALTH_LOG="${NEXUS_HEALTH_LOG:-/var/log/nexus_health.log}"
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BACKUP_LOG="${NEXUS_BACKUP_LOG:-/var/log/nexus_backup.log}"
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m'
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info() { echo -e "${GREEN}[INFO]${NC} $*"; }
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warn() { echo -e "${YELLOW}[WARN]${NC} $*"; }
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error() { echo -e "${RED}[ERROR]${NC} $*" >&2; }
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if [[ "$(id -u)" -ne 0 ]]; then
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error "请使用 root 运行: sudo bash $0"
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exit 1
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fi
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ensure_crontab() {
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if command -v crontab >/dev/null 2>&1; then
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return 0
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fi
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warn "未检测到 crontab，尝试安装 cron 包…"
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if command -v apt-get >/dev/null 2>&1; then
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export DEBIAN_FRONTEND=noninteractive
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apt-get update -qq
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apt-get install -y -qq cron
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systemctl enable --now cron 2>/dev/null || systemctl enable --now crond 2>/dev/null || true
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elif command -v yum >/dev/null 2>&1; then
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yum install -y cronie
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systemctl enable --now crond 2>/dev/null || true
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fi
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if ! command -v crontab >/dev/null 2>&1; then
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error "无法安装 crontab（请手动: apt install cron）"
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exit 1
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fi
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info "cron 已安装"
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}
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ensure_crontab
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for f in \
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"${DEPLOY_DIR}/health_monitor.sh" \
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"${DEPLOY_DIR}/db_backup.sh" \
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"${DEPLOY_DIR}/mysql_dump_to_file.sh" \
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; do
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if [[ ! -f "$f" ]]; then
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error "缺少脚本: $f"
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exit 1
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fi
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chmod +x "$f" 2>/dev/null || true
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done
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touch "$HEALTH_LOG" "$BACKUP_LOG" 2>/dev/null || true
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chmod 644 "$HEALTH_LOG" "$BACKUP_LOG" 2>/dev/null || true
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HEALTH_LINE="* * * * * NEXUS_DEPLOY_DIR=${NEXUS_ROOT} bash ${DEPLOY_DIR}/health_monitor.sh >> ${HEALTH_LOG} 2>&1 # ${HEALTH_MARKER}"
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BACKUP_LINE="0 3 * * * NEXUS_ROOT=${NEXUS_ROOT} bash ${DEPLOY_DIR}/db_backup.sh >> ${BACKUP_LOG} 2>&1 # ${BACKUP_MARKER}"
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existing="$(crontab -l 2>/dev/null || true)"
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filtered="$(printf '%s\n' "$existing" | grep -v "$HEALTH_MARKER" | grep -v "$BACKUP_MARKER" | grep -v 'deploy/health_monitor.sh' | grep -v 'deploy/db_backup.sh' || true)"
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{
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printf '%s\n' "$filtered" | sed '/^[[:space:]]*$/d'
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echo "$HEALTH_LINE"
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echo "$BACKUP_LINE"
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} | crontab -
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info "已写入 crontab:"
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crontab -l | grep -E "$HEALTH_MARKER|$BACKUP_MARKER" || true
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info "健康巡检日志: $HEALTH_LOG"
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info "MySQL 备份日志: $BACKUP_LOG"
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