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# python

sparse-intern-71089

09/28/2023, 8:59 AM

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bland-book-36110

09/28/2023, 10:34 AM

Or maybe I can somehow encapsulate that function into a Pulumi resource that depends on the pipeline?

bland-book-36110

09/28/2023, 11:12 AM

I have also tried with a custom class that depends on the pipeline, but the init method is always executed. And I want it to be executed only if there's a change in the pipeline:

Copy code

class MyAMI(pulumi.ComponentResource):
        def __init__(self, name, opts=None):
            super().__init__(
                "pkg:example:AMI", name, props={}, opts=opts,
            )
            child_opts = pulumi.ResourceOptions(parent=self)

            with open("/tmp/pulumi.log", "a") as file:
                file.write("Running pipeline")

bland-book-36110

09/28/2023, 11:26 AM

Okay, I can pass the pipeline to that new class and make the instance dependent on it. But what about if I need to run some python code only if the pipeline has been executed? For example that

with open

statement

straight-cartoon-24485

09/28/2023, 11:02 PM

https://pulumi-developer-docs.readthedocs.io/en/latest/architecture/overview.html#resource-providers Not sure how to conditionally drive the ec2 creation programmatically since the declarative nature of Pulumi seems to first want to understand the full tree of resources to build, then it fires the dependency tree to another process to create everything But maybe you meant https://www.pulumi.com/docs/concepts/options/dependson/ I use that in conjunction with https://www.pulumi.com/docs/concepts/options/parent/ so the deps tree looks nicer on

pulumi up

I find that it helps to think of how pulumi programs work as "yaml", if you can't do it in yaml, you can't do it pulumi, generally speaking

bland-book-36110

09/29/2023, 12:33 PM

Thanks for the response @straight-cartoon-24485. I'm finally going to use dynamic providers since it seems that they allow me to create my custom code when the resource is created/changed/deleted

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