vmware
Event Sensor/Trigger
Extensible (publish/subscribe) service where you can install plugins (python?) which act as sensor for events And if it detects something it will trigger output plugin (e.g webhook being the simplest). It should be based on async io paradigm or similar and scale to huge number of events. A lot of people now use lambda functions for that but what if you don't have AWS account or money or you are in closed enterprise environment. There does not seem to be some kind of lightweight sensor service . Airflow supports sensors but a lot of people opt out of it (one organization used lambda instead) because it's too heavy - you create a whole new "job" (process or container) just to check the status.
In VDK it can be used to trigger jobs through Execution API
