groups:
  - id: attributes.faas.common
    type: attribute_group
    brief: "Describes FaaS attributes."
    prefix: faas
    attributes:
      - id: trigger
        brief: 'Type of the trigger which caused this function invocation.'
        type:
          allow_custom_values: false
          members:
            - id: datasource
              value: 'datasource'
              brief: 'A response to some data source operation such as a database or filesystem read/write'
            - id: http
              value: 'http'
              brief: 'To provide an answer to an inbound HTTP request'
            - id: pubsub
              value: 'pubsub'
              brief: 'A function is set to be executed when messages are sent to a messaging system'
            - id: timer
              value: 'timer'
              brief: 'A function is scheduled to be executed regularly'
            - id: other
              value: 'other'
              brief: 'If none of the others apply'
      - id: invoked_name
        type: string
        requirement_level: required
        brief: >
          The name of the invoked function.
        note: >
          SHOULD be equal to the `faas.name` resource attribute of the
          invoked function.
        examples: 'my-function'
      - id: invoked_provider
        type:
          allow_custom_values: true
          members:
            - id: 'alibaba_cloud'
              value: 'alibaba_cloud'
              brief: 'Alibaba Cloud'
            - id: 'aws'
              value: 'aws'
              brief: 'Amazon Web Services'
            - id: 'azure'
              value: 'azure'
              brief: 'Microsoft Azure'
            - id: 'gcp'
              value: 'gcp'
              brief: 'Google Cloud Platform'
            - id: 'tencent_cloud'
              value: 'tencent_cloud'
              brief: 'Tencent Cloud'
        requirement_level: required
        brief: >
          The cloud provider of the invoked function.
        note: >
          SHOULD be equal to the `cloud.provider` resource attribute of the
          invoked function.
      - id: invoked_region
        type: string
        requirement_level:
          conditionally_required: >
            For some cloud providers, like AWS or GCP, the region in which a
            function is hosted is essential to uniquely identify the function
            and also part of its endpoint. Since it's part of the endpoint
            being called, the region is always known to clients. In these cases,
            `faas.invoked_region` MUST be set accordingly. If the region is
            unknown to the client or not required for identifying the invoked
            function, setting `faas.invoked_region` is optional.
        brief: >
          The cloud region of the invoked function.
        note: >
          SHOULD be equal to the `cloud.region` resource attribute of the
          invoked function.
        examples: 'eu-central-1'