rules:
  - id: use-either-wget-or-curl
    severity: INFO
    languages: [dockerfile]
    message: >-
      'wget' and 'curl' are similar tools. Choose one and do not install the other to decrease image size.
    metadata:
      source-rule-url: https://github.com/hadolint/hadolint/wiki/DL4001
      references:
        - https://github.com/hadolint/hadolint/wiki/DL4001
      category: best-practice
      technology:
        - dockerfile
    pattern-either:
      - pattern: |
          RUN wget ...
          ...
          RUN curl ...
      - pattern: |
          RUN curl ...
          ...
          RUN wget ...