Plugins cannot import 'SUPERVISOR_COMMS'

[pierrejeambrun]

Server side plugins (fastapi apps, middlewares) do not have any supervisor_comms context setup. Any attempt to use sdk calls will fail, for instance retrieving a connection, which is problematic because by ricochet it also prevents re-using operators hooks in plugins.

Committer

• I acknowledge that I am a maintainer/committer of the Apache Airflow project.

[pierrejeambrun]

cc: @ashb @kaxil