The Golang example for setting up CloudTrail and an S3 BucketPolicy does something a bit weird:

Policy: pulumi.All(bucket.ID(), bucket.ID()).ApplyT(func(_args []interface{}) (string, error) {
	bucketId := _args[0].(string)
	bucketId1 := _args[1].(string)
	// Policy fmt.Sprintf() here
}

Why is

bucket.ID()

repeated 2x in the

pulumi.All()

, and then assigned to two separate variables,

bucketId

and

bucketId1

? It's the same resource, so why does it need to be referenced 2x for the same policy doc? Is there some extra magic going on under the hood?

Nope, nothing magic going on under the hood. All the examples in our documentation are automatically generated from a common source, so it’s likely either the original example was written in a way that causes this to use two variables or it’s a bug in the automated code generation.

I do think this is something we can improve in the code generation for these examples. Opened https://github.com/pulumi/tf2pulumi/issues/230 to track this.

Great to hear x2 -- thank you both 🙏