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Title
# general
e

eager-pillow-75917

04/23/2020, 12:03 PM
I am trying to use an output as a value in another resource but keep getting this:
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To get the value of an Output<T> as an Output<string> consider either:
1: o.apply(v => `prefix${v}suffix`)
2: pulumi.interpolate `prefix${v}suffix`
f

faint-motherboard-95438

04/23/2020, 12:14 PM
Hi @eager-pillow-75917, You should provide us a snippet of your code in order to help you with. This error usually means what it says, your are not consuming the
Output
properly.
w

wonderful-dog-9045

04/23/2020, 12:14 PM
that's because the value is not resolved yet (it will be resolved at a later stage).
So if you value is on variable
x
you can manipulate it with with
x.apply(x => doSomethingWithX(x))
e

eager-pillow-75917

04/23/2020, 12:21 PM
Thanks Garik.
But hey, the documentation is wrong, then.
this is basically what I am trying to do…
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import * as k8s from "@pulumi/kubernetes";
import * as pulumi from "@pulumi/pulumi";
const env = pulumi.getStack();
const infra = new pulumi.StackReference(`acmecorp/infra/${env}`);
const provider = new k8s.Provider("k8s", { kubeconfig: infra.getOutput("kubeConfig") });
const service = new k8s.core.v1.Service(..., { provider: provider });
I got this snippet from https://www.pulumi.com/docs/intro/concepts/organizing-stacks-projects/#inter-stack-dependencies
If I `
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infra.getOutput("kubeConfig")
like it is in the documentation, I get the above error.
w

wonderful-dog-9045

04/23/2020, 12:26 PM
ok, that depends on how you are using the return value of
infra.getOutput()
e

eager-pillow-75917

04/23/2020, 12:27 PM
I had to do something like this to make it work.
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const infra = new pulumi.StackReference("acmecorp/infra/${env}");

export const kubeConfig = infra.getOutput("kubeConfig");
let provider;
kubeConfig.apply(clusterNameOutput => {
  bucket = new k8s.Provider("k8s", { kubeconfig: kubeConfig });
});
no it doesnt man
the documentation is just wrong
I am using an output as a value in a new resource just like in the documentation and it just does not work
to be fair, just like a number of other things are also misleading in the docs
w

wonderful-dog-9045

04/23/2020, 12:29 PM
i guess it may be outdated.
f

faint-motherboard-95438

04/23/2020, 12:31 PM
@eager-pillow-75917 if you provide the whole exact code you are using, someone can actually help you on your context. What the doc says works. I have several clusters doing exactly that.
What is the code of your stack exporting the
kubeConfig
?
e

eager-pillow-75917

04/23/2020, 2:10 PM
this is how I did it. (the kubeconfig I was using the same xample as the documentation)
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const infra = new pulumi.StackReference("infra-staging");

export const clusterNameOutput = infra.getOutput("stagingClusterName");

clusterNameOutput.apply(clusterNameOutput => {
  const bucket = new gcp.storage.Bucket(`my-test-bucket-${clusterNameOutput}`)
});
but the documentation for inter stack dependency does not say anything about the apply method and only uses getOutput
f

faint-motherboard-95438

04/23/2020, 2:13 PM
@eager-pillow-75917 I would be interested in what’s happening in the stack
infra-staging
exporting your
stagingClusterName
. But there’s already a problem in your code here: you shouldn’t try to use outputs in the name of a component, that should be a static string.
e

eager-pillow-75917

04/23/2020, 2:15 PM
let´s try to abstract the issue here man
that was just the simplest example I could think of
I am dont need a bucket
this is just an exaple
read the first thing I sent this morning
I need to use an output as a value in another resource.
f

faint-motherboard-95438

04/23/2020, 2:28 PM
You know I’m actually trying to help you here, this is a community and we all give our time freely. We don’t work on “abstract”. The doc and examples work. So if you have an issue with your code that’s exactly where the problem resides, not on an “abstract” example of yours. So take it easy “man”. So, on an “asbtract” way of doing things, based on what you provided this morning, giving your
infra-staging
creates a cluster and exports the config like this:
export const { kubeconfig } = cluster
You can then do somewhere else something like this:
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const infraStack = new pulumi.StackReference('infra-staging')

const k8sProvider = new k8s.Provider('k8s-provider', {
  kubeconfig: infraStack.getOutput('kubeconfig')
})

const myNamespace = new k8s.core.v1.Namespace('whatever', {}, { provider: k8sProvider })
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