boto是AWS的Python SDK,可以利用boto自動生成ec2的存儲卷快照,實現ec2數據的備份
1.安裝boot
pip install boto ,如果沒有安裝pip,需要提前安裝
2.配置boto配置文件
~/.aws/credentials #設置aws認證憑據
[default] aws_access_key_id = AAAAAAAAAAAAAAA aws_secret_access_key = TNAAAAXXXXXXXXXXXXXXXXXXXXXX
~/.aws/config #設置默認區域
[default] region = us-east-1
3.編輯腳本
#Date: #Author: #Usage: python snap.py volume_id number_of_snapshots_to_keep import boto import sys import pdb from datetime import datetime conn = boto.connect_ec2() conn_us = conn if len(sys.argv) < 2: print "Usage: snap.py vol-id days-to-keep" exit() vol_id = sys.argv[1] keep = int(sys.argv[2]) volumes = conn_us.get_all_volumes([vol_id]) volume = volumes[0] description = 'hostname' + '-' + datetime.today().isoformat(' ')#鏡像描述 volume.create_snapshot(description) snapshots = volume.snapshots() def date_compare(snap1, snap2): if snap1.start_time < snap2.start_time: return -1 elif snap1.start_time == snap2.start_time: return 0 return 1 snapshots.sort(date_compare) delta = len(snapshots) - keep for i in range(delta): print 'Deleting snapshot ' + snapshots[i].description try: snapshots[i].delete() except Exception, e: pass
4.加入crontab
volum-id可以在控制檯中找到
#每天凌晨自動生成磁盤快照
00 00 * * * python /opt/scripts/snap.py vol-00c69ee40b3ad1bf4 10 #Disk snap