DevOps · Flashcard
What role does the EventBus play?
- AThe transport layer — sources publish to it and sensors subscribe
- BThe filter layer — it discards events that no sensor is waiting for
- CThe trigger layer — it creates the workload once conditions hold
- DThe ingress layer — it terminates the webhooks that sources expose
Why this is the answer
The EventBus acts as the transport layer of Argo Events by connecting the EventSources and Sensors: EventSources publish the events while the Sensors subscribe to them to execute triggers. Filtering is a Sensor concern and happens after delivery. Creating the workload is the Trigger. And inbound webhooks are terminated by the EventSource's own listener, before anything reaches the bus.
Official docs