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enable-performance-insights

Default Severity: high

Explanation

When enabling Performance Insights on an RDS cluster or RDS DB Instance, and encryption key should be provided.

The encryption key specified in performance_insights_kms_key_id references a KMS ARN

Possible Impact

Data can be read from the RDS Performance Insights if it is compromised

Suggested Resolution

Enable encryption for RDS clusters and instances

Insecure Example

The following example will fail the aws-rds-enable-performance-insights check. 

resource "aws_rds_cluster_instance" "bad_example" {
    name = "bar"
    performance_insights_enabled = true
    performance_insights_kms_key_id = ""
}

Secure Example

The following example will pass the aws-rds-enable-performance-insights check. 

resource "aws_rds_cluster_instance" "good_example" {
    name = "bar"
    performance_insights_enabled = true
    performance_insights_kms_key_id = "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"
}