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Pulumi does allow changing properties on a resource, but it drives to a desired state. If you update your lambda resource with environment variables it should get created with them. I’m a little confused about what you mean by copying the lambda, can you share some code You’re using?

@billowy-army-68599 sure. What I mean is that in one place I execute the

const foo = new aws.lambda.CallbackFunction(…)

and somewhere else I want to change that callback’s environment variables:

foo.environment.variables = merge(foo.environment.variables, {foo: 'bar'})

This isn’t possible to do, at least with the

ts

version of Pulumi. Maybe we can do it, but the errors are all over

When you say somewhere else, do you mean another Pulumi program?

on another file in my specific case

You can’t do this, Pulumi doesn’t have “flow”. It’s imperative code but Pulumi is a declarative tool. Every resource In your program gets built and created at the same time, so assigning variables further down the flow sounds like you’re building imperative code, which just isn’t possible, it’s not how Pulumi is designed to work

Why isn’t possible? My current workaround is to create a custom class that receives the same arguments as the original Lambda class and defer the initialization of that lambda until I need it

You can keep deferring the creation of resources via the asynchronous capabilities of JavaScript but ultimately you’re going to keep running into these issues I’m afraid

I see. Thanks @billowy-army-68599! So far it’s looking fine. Will have to keep monitoring this I guess