dekun
1e765f4b2b
Stop werkzeug request spam into PM2 error files, truncate oversized logs, and install daily logrotate with 3-day retention. Co-authored-by: Cursor <cursoragent@cursor.com>
62 lines
1.8 KiB
Bash
62 lines
1.8 KiB
Bash
#!/usr/bin/env bash
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# PM2 日志策略:关灌屏后的兜底轮转 — 按天保留 3 天,单文件过大也切分.
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# 用法(root):
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# bash deploy/pm2_log_policy.sh
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# bash deploy/pm2_log_policy.sh --clean-only
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set -euo pipefail
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PM2_LOG_DIR="${PM2_LOG_DIR:-/root/.pm2/logs}"
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LOGROTATE_CONF="${LOGROTATE_CONF:-/etc/logrotate.d/crypto_monitor_pm2}"
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RETENTION_DAYS="${RETENTION_DAYS:-3}"
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MAXSIZE="${MAXSIZE:-20M}"
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CLEAN_ONLY=0
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if [[ "${1:-}" == "--clean-only" ]]; then
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CLEAN_ONLY=1
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fi
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echo ">>> PM2 log dir: ${PM2_LOG_DIR}"
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if [[ ! -d "${PM2_LOG_DIR}" ]]; then
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echo "目录不存在,跳过"
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exit 0
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fi
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echo ">>> truncate oversized active logs (>20MB) and drop stale files older than ${RETENTION_DAYS}d"
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# 当前正在写的大文件用 truncate 清空内容(copytruncate/空写兼容 PM2 仍持有 fd)
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find "${PM2_LOG_DIR}" -type f -name '*.log' -size +20M -print -exec truncate -s 0 {} \;
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# 过期归档/旧编号日志直接删
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find "${PM2_LOG_DIR}" -type f \( -name '*.log' -o -name '*.log.gz' -o -name '*.log.[0-9]*' \) -mtime +"${RETENTION_DAYS}" -print -delete || true
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if [[ "${CLEAN_ONLY}" -eq 1 ]]; then
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echo ">>> --clean-only done"
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du -sh "${PM2_LOG_DIR}" || true
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exit 0
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fi
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echo ">>> install logrotate: ${LOGROTATE_CONF} (daily, rotate ${RETENTION_DAYS}, maxsize ${MAXSIZE})"
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cat > "${LOGROTATE_CONF}" <<EOF
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${PM2_LOG_DIR}/*.log {
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daily
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rotate ${RETENTION_DAYS}
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maxsize ${MAXSIZE}
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missingok
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notifempty
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compress
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delaycompress
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copytruncate
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dateext
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dateformat -%Y%m%d
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}
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EOF
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# 立即跑一次(不强制等到 cron)
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if command -v logrotate >/dev/null 2>&1; then
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logrotate -f "${LOGROTATE_CONF}" || true
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else
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echo "warn: logrotate 未安装,仅完成清理;请 apt install logrotate"
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fi
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echo ">>> size after"
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du -sh "${PM2_LOG_DIR}" || true
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ls -lah "${PM2_LOG_DIR}" | head -30 || true
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echo "done"
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