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# generals
sparse-intern-71089
04/09/2022, 9:21 PMThis message was deleted.
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echoing-dinner-19531
04/09/2022, 9:36 PMYou want to use a StackReference https://www.pulumi.com/learn/building-with-pulumi/stack-references/
echoing-dinner-19531
04/09/2022, 9:38 PMstored into its own state file in AWS S3.Might make things tricky, if your using different S3 buckets for the different stacks as that's currently seen as different backends and that's not currently supported https://github.com/pulumi/pulumi/issues/3395
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brave-lizard-56518
04/09/2022, 9:39 PMAlso, the idea is that once the VPC module has already been run (and produced the stack), I don’t need to run that anymore unless there’s a change to it. My new modules should just be able to load the VPC stack/metadata when I have to provision, let’s say an EC2, or RDS, for example.
brave-lizard-56518
04/09/2022, 9:42 PMThe S3 bucket is common/shared, but each module will have their own stacks inside it, and managed separately.
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echoing-dinner-19531
04/09/2022, 10:03 PMStackReferences should work for you then
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brave-lizard-56518
04/09/2022, 10:47 PMThanks, @helpful-vegetable-35581!
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bored-oyster-3147
04/10/2022, 2:48 AMFYI you need to make sure that you are providing the same directory within that S3 bucket as a backend path. Different directories are treated as separate backends and you won't be able to stack reference across them, even if they reside in the same bucket
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brave-lizard-56518
04/10/2022, 12:55 PMI see. I have to change the directory structure, then.
brave-lizard-56518
04/10/2022, 11:33 PMI’m getting the error below right after this code executes:
Copy code
stackRef, err := pulumi.NewStackReference(ctx, "poc-vpc-vpc1-dev-iad", nil)brave-lizard-56518
04/11/2022, 11:41 PMCan anybody help? I’m somewhat stuck on this approach. I also already searched for this same issue here in the community, but I didn’t find a solution.
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bored-oyster-3147
04/11/2022, 11:46 PMUnfortunately I'm not sure what this error is so I was hoping someone else would chime in.
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echoing-dinner-19531
04/14/2022, 9:33 AMpulumi:pulumi:getResourcepulumi.getResourceb
brave-lizard-56518
04/14/2022, 9:18 PM@helpful-vegetable-35581, can you clarify? I don’t have any getResource call other than pulumi.NewStackReference(ctx, “poc-vpc-vpc1-dev-iad”, nil). My hunch is that it’s from a downstream call. Is there anything I’m doing wrong?
brave-lizard-56518
04/14/2022, 9:46 PMe
echoing-dinner-19531
04/15/2022, 9:43 AMIs there anything I’m doing wrong? (Not sure. Just that "invocation of pulumipulumigetResource returned an error" is from a getResource call, not a registerStackReference call but that URN (urnpulumipoc-vpc-vpc1-dev-iad:vpc v1 alpha1awsec2/subnetSubnet:poc-vpc1-dev-iad-pub2-subnet) looks like its trying to load a resource from the stack listed in the stack reference, but getResource doesn't work like that it can only return resources in the current stack. I'd try and see where that stackreference gets passed to, and see if that code is trying to make a getResource call.
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brave-lizard-56518
04/15/2022, 12:59 PMHi, @helpful-vegetable-35581, I upgraded my Pulumi version from 3.21 to 3.29 and the error I reported has gone away.
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