CODEWITHSUNDEEP
kubernetesterraformkubernetes-helm
hmar
hmar

Reputation: 117

Use diferent values in helm deploy through Terraform (for_each)

I'm using 0.14.7 terraform version and 1.3.2 Helm provider.

I'm trying to deploy the same chart application with different values file and different namespace like totally independent applications:

resource "helm_release" "kong-deploy" {
  for_each   =  var.country

  chart      = "./helm-charts/kong"
  name       = "kong"
  namespace  = "each.value.country"
  create_namespace = true
  version    = "2.0"
  timeout = 60
  values = [
    file("./helm-values/${local.environment}/kong-${local.environment}-${each.value.country}.yaml")
  ]
}

And here are the tfvars:

country = {
    spain = "es"
    united_kingdom = "uk"
}

The expected result is that helm-release use the kong-pre-es/uk.yml file.

But whe I'm doing the terraform plan, I'm getting the next error:

Error: Unsupported attribute

  on deploy.tf line 11, in resource "helm_release" "kong-deploy":
  11:     file("./helm-values/${local.environment}/kong-${local.environment}-${each.value.country}.yaml")
    |----------------
    | each.value is "es"

This value does not have any attributes.


Error: Unsupported attribute

  on deploy.tf line 11, in resource "helm_release" "kong-deploy":
  11:     file("./helm-values/${local.environment}/kong-${local.environment}-${each.value.country}.yaml")
    |----------------
    | each.value is "uk"

I don't know where is the error.. Could you help me?

Thanks

Upvotes: 0

Views: 1521

Answers (1)

Matthew Schuchard
Matthew Schuchard

Reputation: 28739

In this example, you are iterating over a Map with key-value pairs "spain" = "es", "united_kingdom" = "uk". In your scope, the temporary lambda iterator variable each.key is assigned the current iterator's key for Map iteration, and each.value is assigned the current iterator's value for Map iteration.

For example, in the first iteration, each.key would be assigned spain, and each.value would be assigned es.

Assuming that you want the country name in each.value.country, then this is the key in your Map, and you would update like:

values = [file("./helm-values/${local.environment}/kong-${local.environment}-${each.key}.yaml")]

and that will resolve to a suffix of spain.yml in the first iteration.

If instead you want the language name, then this is the value in your Map, and you would update like:

values = [file("./helm-values/${local.environment}/kong-${local.environment}-${each.value}.yaml")]

Upvotes: 2

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