[simonh]

I'm curious what the argument is for overriding config files with ENV vars, rather than vice versa. I'm not saying it's wrong, it's just not something I've considered before in terms of prioritisation if you have competing settings in both.

[evv555]

It's a common pattern with container and cloud platforms. Configurations are passed declaratively through whatever yaml interface they expose as environment variables. This way you can have a higher level config that glues all the components together.