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Also, is it possible to rename

__main__.py

and then specify pulumi cli to look for a custom name?

yes you can break things up using component resources: https://www.pulumi.com/docs/intro/concepts/resources/components/ https://github.com/pulumi/examples/blob/master/gcp-py-network-component/network.py

Terrific thanks @billowy-army-68599

you can define the files, but you’ll always need a

main.py

entrypoint

Perfect thanks @billowy-army-68599 . Whats the best way to ensure pulumi can see those additional files with their own resournces - some kind of import? Sorry for the questions, I'm coming from a

.tf

world where terraform will just automatically see anything with that extension. It's a mental model shift w pulumi, IAC py files and actual application code py files - where they can't be auto-detected.

yes it’s definitely a shit, but Pulumi doesn’t violate the principal of least surprise where terraform just randomly throws what’s in a file at you 😉 You simply define the Component like so: https://github.com/pulumi/examples/blob/master/gcp-py-network-component/network.py#L13-L51 Import it: https://github.com/pulumi/examples/blob/master/gcp-py-network-component/__main__.py#L5 Then declare the resource: https://github.com/pulumi/examples/blob/master/gcp-py-network-component/__main__.py#L12-L15

Ha - valid point... and with some tinkering I managed to figure it out at the same time you were replying. Makes perfect sense now. Defined the resource (an AWS SES template) as a function in a separate

ses.py

file, exported the

template()

function, imported into

__main__.py

and works like a charm. Thanks for your help 👍

I find ComponentResources are better than exported functions, but both work great!

I'll def spend some more time digging into componentresources. One downside of using python for iac is that people come with their own best practices for applications, not IAC which may actually be a case of unlearning, then learning vs coming fresh to a new IAC language and learning from scratch.