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#!/bin/bash
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set -e
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IMAGE_NAME="chunlinwang/myubuntu"
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TAG="latest"
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CONTAINER_NAME="myubuntu"
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TMP_FILE="myubuntu_flat.tar"
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DATE=$(date +%Y%m%d_%H%M)
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echo "========== 开始重打包 myubuntu (单层干净版) =========="
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# 1. 确保容器存在并启动
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if ! docker ps -a | grep -q "$CONTAINER_NAME"; then
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echo "❌ 容器 $CONTAINER_NAME 不存在！"
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exit 1
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fi
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echo "[+] 启动容器..."
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docker start "$CONTAINER_NAME"
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echo "[+] 等待容器就绪..."
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sleep 3
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# 2. 在容器内执行深度清理
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echo "[+] 开始在容器内执行清理..."
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docker exec "$CONTAINER_NAME" bash -c '
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echo "→ 清理宝塔日志和备份..."
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rm -rf /www/wwwlogs/*
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echo "日志已清理" > /www/wwwlogs/cleaned.log
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rm -rf /www/backup/*
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echo "→ 清理面板缓存..."
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rm -rf /www/server/panel/logs/*
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rm -rf /www/server/panel/data/tmp/*
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echo "→ 清理 MySQL binlog..."
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rm -f /www/server/data/mysql-bin.* /www/server/data/relay-log.* 2>/dev/null
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echo "→ 清理 PHP sessions 和临时文件..."
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rm -rf /www/server/php/*/var/sessions/* 2>/dev/null
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rm -rf /tmp/* /var/log/* /var/tmp/* /root/.cache/* 2>/dev/null
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echo "→ 清理 apt 缓存..."
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apt-get clean >/dev/null 2>&1
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rm -rf /var/lib/apt/lists/*
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echo "→ 清理其他大日志..."
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find /www -name "*.log" -type f -size +5M -delete 2>/dev/null
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echo "清理完成，当前占用情况："
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df -h
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du -sh /www/* 2>/dev/null | sort -hr
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'
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# 3. 停止容器准备导出
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echo "[+] 停止容器..."
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docker stop "$CONTAINER_NAME"
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# 4. 备份旧镜像
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echo "[+] 备份旧 latest 为 ${DATE}-old..."
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if docker image inspect "${IMAGE_NAME}:${TAG}" >/dev/null 2>&1; then
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docker tag "${IMAGE_NAME}:${TAG}" "${IMAGE_NAME}:${DATE}-old"
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echo "旧镜像已备份为 ${IMAGE_NAME}:${DATE}-old"
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fi
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# 5. 导出 + 导入为单层新镜像
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echo "[+] 导出容器为单层 tar..."
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docker export "$CONTAINER_NAME" -o "$TMP_FILE"
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echo "[+] 导入为新单层 latest 镜像..."
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docker import \
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-c 'ENTRYPOINT ["/entrypoint.sh"]' \
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-c 'CMD []' \
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"$TMP_FILE" "${IMAGE_NAME}:${TAG}"
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# 6. 清理临时文件
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rm -f "$TMP_FILE"
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# 7. 完成信息
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echo "========== 重打包完成！=========="
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echo "新镜像："
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docker images "${IMAGE_NAME}" --format "table {{.Repository}}:{{.Tag}}\t{{.Size}}\t{{.ID}}"
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echo "当前磁盘占用："
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df -h
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echo "提示：旧镜像已备份为 ${IMAGE_NAME}:${DATE}-old，可随时回滚。"
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