Question

我计划使用CloudWatch自动创建EBS快照如何安排自动删除旧快照？

Answer 1

这可能会有所帮助。这是我写的一个Python程序，它捕获所有卷的快照并保留最后2个快照。

您可以在EC2实例上运行这样的程序，或将其转换为作为计划的AWS Lambda函数运行。

#!/usr/bin/env python

import boto.ec2, os

MAX_SNAPSHOTS = 2   # Number of snapshots to keep

# Connect to EC2 in this region
connection = boto.ec2.connect_to_region('<insert region here>')

# Get a list of all volumes
volumes = connection.get_all_volumes()

# Create a snapshot of each volume
for v in volumes:
  connection.create_snapshot(v.id)

  # Too many snapshots?
  snapshots = v.snapshots()
  if len(snapshots) > MAX_SNAPSHOTS:

    # Delete oldest snapshots, but keep MAX_SNAPSHOTS available
    snap_sorted = sorted([(s.id, s.start_time) for s in snapshots], key=lambda k: k[1])
    for s in snap_sorted[:-MAX_SNAPSHOTS]:
      print "Deleting snapshot", s[0]
      connection.delete_snapshot(s[0])

Answer 2

您可以拍摄快照，并在这些快照上放置“ DeleteOn：”之类的标签。

写另一个lambda，它根据该标签读取快照，并在该特定日期将其删除。 Botocore文档中对此有详细说明：https://botocore.amazonaws.com/v1/documentation/api/latest/reference/services/ec2.html

AWS：如何在一周后安排删除EBS快照？

2 个答案: