.yamllint

---

extends: default

rules:
  document-end: enable
  document-start:
    level: error
  empty-values: enable
  float-values:
    require-numeral-before-decimal: true
  indentation:
    spaces: 2
  octal-values: enable

  quoted-strings:
    quote-type: double
    required: only-when-needed
    extra-required:
      # Jinja template
      - "{{"
      # Jinja template
      - "{%"
      # file paths
      - "^(\\/[^\\/]+)+\\/?$"
      # URL scheme (e.g. https://)
      - "^([a-z][a-z0-9+\\-.]*):"
    extra-allowed:
      # regex
      - "^"
      # email address
      - "@"
      # IPv4 address
      - |
          (?x)^(
              (25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}
          $
      # IPv6 address
      - |
          (?x)^(
              ?!^(?:(?:.*(?:::.*::|:::).*)|::|[0:]+[01]|
              .*[^:]:|[0-9a-fA-F](?:.*:.*){8}[0-9a-fA-F]|
              (?:[0-9a-fA-F]:){1,6}[0-9a-fA-F])$)^(?:(::|
              [0-9a-fA-F]{1,4}:{1,2})([0-9a-fA-F]{1,4}:{1,2}){0,6}
              ([0-9a-fA-F]{1,4}|::)?
          )$
      # MAC address
      - "^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$"
    allow-quoted-quotes: false

  truthy:
    allowed-values: ["true", "false"]
    level: error
...