Status: Experimental
From the CloudEvents specification:
CloudEvents is a specification for describing event data in common formats to provide interoperability across services, platforms and systems.
For more information on the concepts, terminology and background of CloudEvents consult the CloudEvents Primer document.
CloudEvent-specific instrumentations SHOULD follow the span structure described in the Semantic Conventions for Messaging Spans.
If CloudEvents are instrumented independently of the above conventions, instrumentations can rely on the CloudEvents Distributed Tracing Extension as means to propagate the trace context.
Additionally, instrumentations may record the following CloudEvent-specific attributes on spans created from the conventions described above.
| Attribute | Type | Description | Examples | Requirement Level | Stability |
|---|---|---|---|---|---|
cloudevents.event_id |
string | The event_id uniquely identifies the event. | 123e4567-e89b-12d3-a456-426614174000; 0001 |
Required |
 |
cloudevents.event_source |
string | The source identifies the context in which an event happened. | https://github.com/cloudevents; /cloudevents/spec/pull/123; my-service |
Required |
|
cloudevents.event_spec_version |
string | The version of the CloudEvents specification which the event uses. | 1.0 |
Recommended |
|
cloudevents.event_subject |
string | The subject of the event in the context of the event producer (identified by source). | mynewfile.jpg |
Recommended |
|
cloudevents.event_type |
string | The event_type contains a value describing the type of event related to the originating occurrence. | com.github.pull_request.opened; com.example.object.deleted.v2 |
Recommended |
|