Incorrect Airflow (AIRFLOW_VAR_xxx) environment variables

The name of some of Airflow environment variables set in values.yaml, such as AIRFLOW_VAR_CORE__SERVICE__DATASET__HOST, are different from the ones osdu-airflow-lib is looking for (such as core__service__dataset__url that means the env var set in values.yaml must be named AIRFLOW_VAR_CORE__SERVICE__DATASET__URL).

I don't know how many of these incorrect env vars are there but making sure both AIRFLOW_VAR_CORE__SERVICE__<some_service>__HOST and AIRFLOW_VAR_CORE__SERVICE__<some_service>__URL fixed it for me.