aws-ssm-secret-use-customer-key.md

Pattern: Missing use of Customer Managed Keys for AWS secrets manager

Issue: -

Description

Secrets Manager encrypts secrets by default using a default key created by AWS. To ensure control and granularity of secret encryption, CMK's should be used explictly.

Resolution: Use customer managed keys.

Examples

Example of incorrect code:

resource "aws_secretsmanager_secret" "bad_example" {
  name       = "lambda_password"
}

Example of correct code:

resource "aws_kms_key" "secrets" {
	enable_key_rotation = true
}

resource "aws_secretsmanager_secret" "good_example" {
  name       = "lambda_password"
  kms_key_id = aws_kms_key.secrets.arn
}