阿里云Lighthouse自动创建快照

前言

配置自动化脚本创建快照保存数据，单台轻量应用服务器最多可创建3个快照。

创建快照Python脚本

环境配置

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pip3 install aliyun-python-sdk-core
pip3 install aliyun-python-sdk-ecs

脚本内容

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from aliyunsdkcore.client import AcsClient
from aliyunsdkcore.request import CommonRequest
import time

# 初始化客户端
client = AcsClient('<your-access-key-id>', '<your-access-key-secret>', 'cn-hangzhou')

# 动态生成快照名称
current_date = time.strftime("%Y%m%d", time.localtime())  # 获取当前日期
SNAPSHOT_NAME = f"Snapshot-{current_date}"

def create_snapshot(disk_id):
    request = CommonRequest()
    request.set_domain('swas.cn-guangzhou.aliyuncs.com')
    request.set_version('2020-06-01')
    request.set_action_name('CreateSnapshot')
    request.add_query_param('RegionId', 'cn-guangzhou')
    request.add_query_param('DiskId', disk_id)
    request.add_query_param('SnapshotName', SNAPSHOT_NAME)  # 使用动态生成的快照名称
    response = client.do_action_with_exception(request)
    return eval(response)

# 示例：创建快照
disk_id = "d-bp18kjxg9ebrhsgi****"  # 替换为实际磁盘 ID
response = create_snapshot(disk_id)
print(f"Snapshot Created: {response}")

配置定时计划任务

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$ crontab -l
0 2 * * * /usr/bin/python3 /apps/snapshot/aliyun-lighthouse-snapshot.py

配置自动删除脚本

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import time
from datetime import datetime, timezone
from aliyunsdkcore.client import AcsClient
from aliyunsdkcore.request import CommonRequest

# 初始化客户端
client = AcsClient('<your-access-key-id>', '<your-access-key-secret>', 'cn-hangzhou')

def list_snapshots():
    """
    查询快照列表
    """
    request = CommonRequest()
    request.set_domain('swas.cn-guangzhou.aliyuncs.com')
    request.set_version('2020-06-01')
    request.set_action_name('ListSnapshots')
    request.add_query_param('RegionId', 'cn-guangzhou')
    response = client.do_action_with_exception(request)
    return eval(response)

def delete_snapshot(snapshot_id):
    """
    删除指定快照
    """
    request = CommonRequest()
    request.set_domain('swas.cn-guangzhou.aliyuncs.com')
    request.set_version('2020-06-01')
    request.set_action_name('DeleteSnapshot')
    request.add_query_param('RegionId', 'cn-guangzhou')
    request.add_query_param('SnapshotId', snapshot_id)
    response = client.do_action_with_exception(request)
    return eval(response)

def convert_utc_to_timestamp(utc_time):
    """
    将UTC时间转换为时间戳
    :param utc_time: UTC时间字符串，格式为ISO 8601 (yyyy-MM-ddTHH:mm:ssZ)
    :return: 时间戳（秒级）
    """
    utc_datetime = datetime.strptime(utc_time, '%Y-%m-%dT%H:%M:%SZ').replace(tzinfo=timezone.utc)
    return int(utc_datetime.timestamp())

def main():
    # 获取快照列表
    snapshots = list_snapshots().get('Snapshots', [])
    current_time = time.time()

    print("当前快照列表：")
    for snapshot in snapshots:
        snapshot_id = snapshot.get('SnapshotId', '未知')
        creation_time = snapshot.get('CreationTime', '未知')
        status = snapshot.get('Status', '未知')

        if creation_time != '未知':
            # 转换快照创建时间为时间戳
            creation_timestamp = convert_utc_to_timestamp(creation_time)
            # 计算时间差（秒）
            time_diff = current_time - creation_timestamp
            days_diff = time_diff / (24 * 3600)  # 转换为天数

            print(f"快照 ID: {snapshot_id}, 创建时间: {creation_time}, 状态: {status}, 存在时间: {days_diff:.2f} 天")

            # 检查快照是否超过3天
            if days_diff > 3:
                print(f"快照 {snapshot_id} 已超过3天，正在删除...")
                delete_snapshot(snapshot_id)
            else:
                print(f"快照 {snapshot_id} 尚未超过3天，无需删除。")
        else:
            print(f"快照 {snapshot_id} 的创建时间未知，跳过处理。")

if __name__ == "__main__":
    main()

执行脚本

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当前快照列表：
快照 ID: s-bp16oazlsold4dks****, 创建时间: 2023-10-01T04:00:00Z, 状态: Accomplished, 存在时间: 3.15 天
快照 s-bp16oazlsold4dks**** 已超过3天，正在删除...
快照 ID: s-bp16oazlsold4dk****, 创建时间: 2023-10-04T07:30:00Z, 状态: Accomplished, 存在时间: 0.12 天
快照 s-bp16oazlsold4dk**** 尚未超过3天，无需删除。

配置定时任务

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$ crontab -l
0 1 * * * /usr/bin/python3 /apps/snapshot//apps/snapshot/aliyun-lighthouse-delete-snapshot.py
阿里云Lighthouse自动创建快照
http://example.com/2025/04/24/阿里云Lighthouse自动创建快照/
作者
种田人
发布于
2025年4月24日
许可协议