Env var override suggestion

[ericdill]

Having spent some time recently with airflow, I wonder what your thoughts are on handling env var overrides in Quetz similar to how they do it in Airflow:

AIRFLOW__{CONFIG_SECTION}__{CONFIG_KEY}

Basically separate QUETZ, CONFIG_SECTION and CONFIG_KEY with double underscores __ instead of single underscores _. This has a couple of benefits: easier to parse visually and also enforces uniqueness between sections. In theory you could have config like:

[config_test]
url = 'some url'
[config]
test_url = 'some other url'

and so with the current scheme in Quetz, these two would have identical environmental variables of QUETZ_CONFIG_TEST_URL whereas with the double underscore you'd get QUETZ__CONFIG_TEST__URL and QUETZ__CONFIG__TEST_URL

Thoughts?

[benjamb]

Sounds reasonable to me.

[wolfv]

I think this is related to #155

[btel]

it's a very good idea, it might be also added to the current config system

[adriendelsalle]

Agree!