extends: ["spectral:oas"]
documentationUrl: https://github.com/cri-o/cri-o/blob/main/docs/metrics.md
rules:
  cri-o-metrics-info-license:
    description: API info object should declare the Apache 2.0 license.
    given: "$.info.license"
    severity: error
    then:
      field: name
      function: pattern
      functionOptions:
        match: "Apache"
  cri-o-metrics-server-port:
    description: Server URL should reference the default metrics port 9090.
    given: "$.servers[*].url"
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: "9090"
  cri-o-metrics-paths:
    description: API must define the /metrics path.
    given: "$.paths"
    severity: error
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          required:
            - /metrics
  cri-o-metrics-get-only:
    description: Metrics endpoint must only support GET.
    given: "$.paths['/metrics']"
    severity: error
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          properties:
            get:
              type: object
          additionalProperties: false
  cri-o-metrics-text-plain-response:
    description: Metrics 200 response must be text/plain (Prometheus exposition format).
    given: "$.paths['/metrics'].get.responses.200.content"
    severity: error
    then:
      field: text/plain
      function: truthy
  cri-o-metrics-operation-id:
    description: Operations must define an operationId.
    given: "$.paths.*.get"
    severity: error
    then:
      field: operationId
      function: truthy
  cri-o-metrics-tags:
    description: Operations must define tags.
    given: "$.paths.*.get"
    severity: error
    then:
      field: tags
      function: truthy