rules:
  - id: missing-api-gateway-cache-cluster
    severity: WARNING
    languages: [hcl]
    message: >-
      Found a AWS API Gateway Stage without cache cluster enabled.
      Enabling the cache cluster feature enhances responsiveness of your API.
      Add `cache_cluster_enabled = true` to your resource block.
    metadata:
      category: best-practice
      technology:
        - aws
        - terraform
    patterns:
      - pattern: |
          resource "aws_api_gateway_stage" $ANYTHING {
            ...
          }
      - pattern-not-inside: |
          resource "aws_api_gateway_stage" $ANYTHING {
            ...
            cache_cluster_enabled = true
            ...
          }