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Encrypting EBS Volumes of Amazon EC2 Instances Using Python
- The account has hundreds of EC2 instances with EBS volumes that are encrypted with the KMS AWS managed key aws/ebs.
- The need to encrypt or re-encrypt EBS volumes is not uncommon, so someone would have developed tools and scripts for it.
- To encrypt or re-encrypt an EBS volume that is attached to an EC2 instance, create a snapshot of the volume, create a new volume from the previously created snapshot, detach the original volume from EC2 instance, attach a new volume to EC2 instance with same device name as above.
- Given Boto3 and Python are part of my preferred toolset, I decided to leverage the aws_volume_encryption solution as my starting point.
- Although developed years ago, the original script remains fully functional, proving its reliability.
- The original volume still exits and have some metadata tags added by the script for traceability.
- With this improved script, you can (re-)encrypt EBS volumes of any EC2 instance with ease.
- If you are encrypting volumes for many instances, you can write another script that reads a CSV file containing EC2 instance information and runs volume_encryption.py on multiple instances in parallel.
- This demonstrates how automation and generative AI empower DevOps engineers to tackle complex challenges efficiently.
- If your organization’s security policies require that EBS volumes be encrypted, consider using the Amazon EBS encryption by default feature to automatically encrypt any new EBS volumes.
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