rules:
- id: aws-rds-multiaz-not-enabled
  patterns:
    - pattern: |
        resource "aws_db_instance" $ANYTHING {
          ...
        }
    - pattern-not-inside: |
        resource "aws_db_instance" $ANYTHING {
          ...
          multi_az = true
          ...
        }
  message: >-
    The AWS RDS is not configured to use multi-az. Consider using it if possible.
  languages: [hcl]
  severity: WARNING
  metadata:
    category: best-practice
    technology:
    - terraform
    - aws