Yes the easiest is os.environ call before the import
Regarding azure blob

General azure env vars should work because it configure the underlying azure sdk, but I would double check

Generally speaking
Generic Override Format
ClearML allows you to override any config entry using this format:

bash
CLEARML__<section>__<key>=<value>
Double underscores __ separate the hierarchy levels.

All keys and values are treated as strings.

This works for nested entries in clearml.conf.