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KMS Key rotation when using RDS created by CloudFormation

0

We wish to enable KMS encryption at rest for our RDS instances, along with automatic (or manual) key rotation. When creating the RDS with CloudFormation, if you provide a KMS key alias it immediately resolves to the underlying key. If the key alias then points to a different key, the RDS instance will not be correctly rotated. As the KmsKeyId parameter is one that requires replacement, it is impossible to rotate KMS keys for RDS at all as long as it is managed by CloudFormation.

I have found this open issue of someone having a similar issue: https://github.com/aws-cloudformation/cloudformation-coverage-roadmap/issues/1307

Is there a recommended way to enable KMS key rotation for RDS instances created by CloudFormation?

Topics
Security, Identity, & ComplianceMigration & ModernizationAnalyticsDatabaseManagement & GovernanceAWS Well-Architected Framework
Tags
AWS Key Management ServiceAmazon Relational Database ServiceAWS CloudFormationSecurityEncryption
Language
English
Will
asked 10 months ago490 views
1 Answer
0

I suggest looking into the automatic key rotation feature within KMS: https://docs.aws.amazon.com/kms/latest/developerguide/rotate-keys.html

AWS
kumo-hiyori
answered 10 months ago

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