groups:
  - id: cloudevents
    prefix: cloudevents
    brief: >
        This document defines attributes for CloudEvents.
        CloudEvents is a specification on how to define event data in a standard way.
        These attributes can be attached to spans when performing operations with CloudEvents, regardless of the protocol being used.
    attributes:
      - id: event_id
        type: string
        required: always
        brief: >
          The [event_id](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#id) uniquely identifies the event.
        examples: ['123e4567-e89b-12d3-a456-426614174000', '0001']
      - id: event_source
        type: string
        required: always
        brief: >
          The [source](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#source-1) identifies the context in which an event happened.
        examples: ['https://github.com/cloudevents', '/cloudevents/spec/pull/123', 'my-service' ]
      - id: event_spec_version
        type: string
        required: always
        brief: >
          The [version of the CloudEvents specification](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#specversion) which the event uses.
        examples: '1.0'
      - id: event_type
        type: string
        required: always
        brief: >
          The [event_type](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#type) contains a value describing the type of event related to the originating occurrence.
        examples: ['com.github.pull_request.opened', 'com.example.object.deleted.v2']
      - id: event_subject
        type: string
        brief: >
          The [subject](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#subject) of the event in the context of the event producer (identified by source).
        examples: 'mynewfile.jpg'