How does airflow find its compontents?

[static-moonlight]

I'm still in the process of building my Kubernetes deployment for Apache Airflow. I just added the triggerer and the web interface from the API server immediately shows this:

How does that work? I didn't tell the API server where to find the triggerer. I didn't tell the triggerer where to find the API server. And yet, they seem to find each other just fine and are already best buddies. How does this work? The only thing they have in common is the database. By any chance, is Airflow using its database as a service discovery middleware or something? Can someone explain to me how Airflow discovers its components? :)

[static-moonlight]

Nevermind. The database seems to be in fact a service registry. I found the entries I was looking for in the job table.