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Automated backup of EC2 Volume for last seven days using AWS CloudWatch
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| ''' | |
| This is tiny script (self note) for automated back of AWS EC2 | |
| 1. Create Lambda function. Visit https://us-west-2.console.aws.amazon.com/lambda/home | |
| 2. Assigned right AIM role (should have sufficient privileges). Visit https://console.aws.amazon.com/iam/home?#/roles) | |
| 3. Set to schedule run from CloudWatch Event. Visit https://us-west-2.console.aws.amazon.com/cloudwatch/home | |
| ''' | |
| import boto3 | |
| import datetime | |
| region ='region' | |
| ec2 = boto3.resource('ec2' region) | |
| client = boto3.client('ec2', region) | |
| def describe_volumes(): | |
| volumes = client.describe_volumes( | |
| Filters=[ | |
| {'Name': 'tag:Name', 'Values': ['VolumeName']}, | |
| ] | |
| ) | |
| if len(volumes['Volumes']) >= 1: | |
| volume_id = volumes['Volumes'][0]['Attachments'][0]['VolumeId'] | |
| volume = ec2.Volume(volume_id) | |
| snapshot = volume.create_snapshot(Description='PowrbotMainVolumeImageBackup') | |
| now = datetime.datetime.utcnow() - datetime.timedelta(days=7) | |
| for image in volume.snapshots.all(): | |
| tnow = image.start_time.replace(tzinfo=None) | |
| if image.description == 'AutoSnappVolumeImages' and now > tnow: | |
| image.delete() | |
| def lambda_handler(event, context): | |
| describe_volumes() | |
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This may not require as AWS has Life Cycle Policy