SamWheating commented on issue #18582:
URL: https://github.com/apache/airflow/issues/18582#issuecomment-931459195


   I like this idea, but I'm not sure how it would work as Pools are read _and 
updated_ by the Airflow scheduler, whereas configuration, connections and 
variables from environment variables are read-only.
   
   Maybe we could have something on scheduler start-up which checks for 
`AIRFLOW__POOL_*` environment variables and creates / updates pool sizes 
accordingly?
   
   I'd be happy to work on this, but I think I need to understand the 
requirements better first. Could you expand on which aspects of pool 
configuration you want to manage via environment variables?


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