Can't use set { value = "true" }

[mihaidf22]

Terraform, Provider, Kubernetes and Helm Versions

Terraform version: 1.1.9
Provider version: 2.3.0
Kubernetes version: 1.19

Affected Resource(s)

• helm_release

Terraform Configuration Files

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I'm trying to install metrics-server and add 2 labels to the service one of them having the value = "true" error:

terrafrom code

module "metrics-server" {
  source  = "terraform-module/release/helm"
  version = "2.7.0"

  namespace  = "kube-system"
  repository = "https://kubernetes-sigs.github.io/metrics-server/"

  app = {
    name          = "metrics-server"
    version       = "3.8.2"
    chart         = "metrics-server"
    force_update  = true
    wait          = false
    recreate_pods = false
    deploy        = 1
  }

  set = [
    {
      name  = "service.labels.kubernetes\\.io/name"
      value = "Metrics-server"
    },
    {
      name  = "service.labels.kubernetes\\.io/cluster-service"
      value = "true"
    }
  ]
}

**Error:** unable to build kubernetes objects from release manifest: unable to decode "": resource.metadataOnlyObject.ObjectMeta: v1.ObjectMeta.Labels: ReadString: expects " or n, but found t, error found in #10 byte of ...|service":true,"kuber|..., bigger context ...|cs-server-3.8.2","kubernetes.io/cluster-service":true,"kubernetes.io/name":"Metrics-server"},"name":|...

Debug Output

Gist - url

NOTE: In addition to Terraform debugging, please set HELM_DEBUG=1 to enable debugging info from helm.

Panic Output

Steps to Reproduce

1. terraform apply -target module.mindlinc.module.metrics-server

Expected Behavior

Create a metrics-server with lables added

Actual Behavior

Error: unable to build kubernetes objects from release manifest: unable to decode "": resource.metadataOnlyObject.ObjectMeta: v1.ObjectMeta.Labels: ReadString: expects " or n, but found t, error found in #10 byte of ...|service":true,"kuber|..., bigger context ...|cs-server-3.8.2","kubernetes.io/cluster-service":true,"kubernetes.io/name":"Metrics-server"},"name":|...
│ 
│   with module.mindlinc.module.metrics-server.helm_release.this[0],
│   on .terraform/modules/mindlinc.metrics-server/main.tf line 1, in resource "helm_release" "this":
│    1: resource "helm_release" "this" {

Important Factoids

Running in EKS

References

• GH-1234

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[jrhouston]

Try setting the type = "string in the set block here. I think what's happening is that it's defaulting to auto and assuming you want to set a boolean value in the yaml – but because it's a label you're modifying it needs to be the string "true"

[mihaidf22]

@jrhouston Tried that. Did not work. It's like it takes true without quotes. Any other word will take as string, not true though.

[jrhouston]

Oh! I just realized you're using the the terraform-module/release/helm terraform module, which wraps the helm provider. I can see in their code their set input doesn't actually implement the type attribute:

https://github.com/terraform-module/terraform-helm-release/blob/master/variables.tf#L17-L24

So you'll need to open an issue with them (or open a PR against their repo to add it).