rules:
  - id: invalid-port
    message: Detected an invalid port number. Valid ports are 0 through 65535.
    severity: ERROR
    languages:
      - dockerfile
    metadata:
      source-rule-url: https://github.com/hadolint/hadolint/wiki/DL3011
      references:
        - https://github.com/hadolint/hadolint/wiki/DL3011
      category: correctness
      technology:
        - dockerfile
    pattern-either:
      - patterns:
          - pattern: EXPOSE $PORT
          - metavariable-comparison:
              metavariable: $PORT
              comparison: int($PORT) > 65535