hi folks, I have a couple of questions. 1. I have a component resource which does:

class VPC(ComponentResource):
    def __init__(self, ...): 
        ...
        self.register_outputs({
            "id": self.vpc.id,
            "custom_id": "123456",
        })

why can't I access component resource outputs within pulumi export?

vpc = VPC(...)
pulumi.export("vpc_id", vpc.id)  # this doesn't work

2. could you point me in the doc where it is described the purpose of Pulumi.stack.yaml file, and what can I do with it? in particular I am interested in how not to use it and provide region and role programmatically https://www.pulumi.com/docs/iac/concepts/config/

In your case does vpc.vpc.id work. register_outputs() only really tells the engine that the component resource is done provisioning.

vpc.vpc.id does work, but that's not what I want. as it feels like a leaking abstraction for component consumers.

You can assign

self.id = self.vpc.id

and it would work the way you want it there.

ok, I will do that, thanks. how do pulumi defined resources handle this? as there isn't any problem to access outputs from those

Nope it should be fine. Just make sure you do

opts*=*pulumi*.*ResourceOptions(parent*=*self))

on all of them so dependencies flow thru