95 lines
3.1 KiB
Bash
Executable File
95 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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# ===================================================================
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# Docker 容器日志 & 系统日志清理脚本
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# 功能：当容器日志或 /var/log 超过阈值时自动清理
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# 使用：./cleanup-logs.sh [容器日志阈值GB] [系统日志阈值GB]
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# 示例：./cleanup-logs.sh 2 2
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# ===================================================================
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CONTAINER_THRESHOLD=${1:-2} # 默认容器日志超过 2GB 才清理
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SYSLOG_THRESHOLD=${2:-2} # 默认系统日志超过 2GB 才清理
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echo "=========================================="
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echo "日志清理脚本"
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echo "容器日志阈值: ${CONTAINER_THRESHOLD}GB"
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echo "系统日志阈值: ${SYSLOG_THRESHOLD}GB"
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echo "=========================================="
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# ========== 1. 清理 Docker 容器日志 ==========
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echo ""
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echo "=== 检查容器日志 ==="
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total_container_log=0
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cleared_containers=0
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for container in $(docker ps -q); do
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log_file=$(docker inspect --format='{{.LogPath}}' "$container" 2>/dev/null)
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container_name=$(docker inspect --format='{{.Name}}' "$container" 2>/dev/null | sed 's/^\///')
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if [ -f "$log_file" ]; then
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size_bytes=$(stat -c%s "$log_file" 2>/dev/null || echo 0)
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size_gb=$((size_bytes / 1024 / 1024 / 1024))
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total_container_log=$((total_container_log + size_bytes))
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if [ $size_gb -ge $CONTAINER_THRESHOLD ]; then
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truncate -s 0 "$log_file" 2>/dev/null
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echo " ✅ 已清理: $container_name (${size_gb}GB)"
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cleared_containers=$((cleared_containers + 1))
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fi
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fi
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done
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total_container_gb=$((total_container_log / 1024 / 1024 / 1024))
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echo "容器日志总大小: ${total_container_gb}GB"
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echo "已清理容器数: $cleared_containers"
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# ========== 2. 清理 /var/log 日志 ==========
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echo ""
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echo "=== 检查系统日志 ==="
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total_syslog_size=0
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cleared_logs=0
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# 找出 /var/log 下超过阈值的大文件并清理
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for logfile in $(find /var/log -type f -name "*.log" 2>/dev/null); do
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if [ -f "$logfile" ]; then
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size_bytes=$(stat -c%s "$logfile" 2>/dev/null || echo 0)
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size_gb=$((size_bytes / 1024 / 1024 / 1024))
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total_syslog_size=$((total_syslog_size + size_bytes))
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if [ $size_gb -ge $SYSLOG_THRESHOLD ]; then
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truncate -s 0 "$logfile" 2>/dev/null
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echo " ✅ 已清理: $logfile (${size_gb}GB)"
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cleared_logs=$((cleared_logs + 1))
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fi
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fi
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done
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# 也清理旧的压缩日志
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for gzfile in $(find /var/log -type f -name "*.gz" 2>/dev/null | head -20); do
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if [ -f "$gzfile" ]; then
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rm -f "$gzfile" 2>/dev/null && echo " ✅ 已删: $gzfile"
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fi
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done
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# 清理旧的 log.1, log.2 等轮转文件
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for oldlog in $(find /var/log -type f -name "*.log.[0-9]*" 2>/dev/null); do
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rm -f "$oldlog" 2>/dev/null && echo " ✅ 已删: $oldlog"
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done
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total_syslog_gb=$((total_syslog_size / 1024 / 1024 / 1024))
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echo "系统日志总大小: ${total_syslog_gb}GB"
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echo "已清理日志数: $cleared_logs"
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# ========== 3. 磁盘状态 ==========
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echo ""
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echo "=== 当前磁盘状态 ==="
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df -h /
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echo ""
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echo "=========================================="
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echo "清理完成"
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echo "=========================================="
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