aws-snapshot-tool
aws-snapshot-tool is a python script to make it easy to roll snapshot of your EBS volumes.
Simply add a tag to each volume you want snapshots of, configure and install a cronjob for aws-snapshot-tool and you are off. It will even handle rolling snapshots on a day, week and year so that you can setup the retention policy to suit.
Features:
- Python based: Leverages boto and is easy to configure and install as a crontab
- Simple tag system: Just add a tag to each of your EBS volumes you want snapshots of
- Configure retention policy: Configure how many days, weeks, and month snapshots you want to retain
- SNS Notifications: aws-snapshot-tool works with Amazon SNS our of the box, so you can be notified of snapshots
Usage
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Install and configure Python and Boto (See: https://github.com/boto/boto)
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Create a SNS topic in AWS and copy the ARN into the config file
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Subscribe with a email address to the SNS topic
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Create a snapshot user in IAM and put the key and secret in the config file
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Create a security policy for this user (see the iam.policy.sample)
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Copy config.sample to config.py
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Decide how many versions of the snapshots you want for day/week/month and change this in config.py
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Change the Region and Endpoint for AWS in the config.py file
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Optionally specify a proxy if you need to, otherwise set it to '' in the config.py
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Give every Volume for which you want snapshots a Tag with a Key and a Value and put these in the config file. Default: "MakeSnapshot" and the value "True"
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Install the script in the cron:
# chmod +x makesnapshots.py # crontab -e 30 1 * * 1-5 /opt/aws-snapshot-tool/makesnapshots.py day 30 2 * * 6 /opt/aws-snapshot-tool/makesnapshots.py week 30 3 1 * * /opt/aws-snapshot-tool/makesnapshots.py month
Additional Notes
The user that executes the script needs the following policies: see iam.policy.sample