How do I pass a nested list to the helm_release resource?

Question

I need this config:

ingress:
  hosts:
    - host: test.example.io
      paths: [/path]

I attempted this and got an error:

  set_list {
    name  = "ingress.hosts"
    value = ["{host: *, paths [/*]}"]
  }

Error: failed parsing key "ingress.hosts" with value {host: *, paths [/*]}, key "}" has no value

EDIT

I wound up just yamlencode-ing a terraform map- but a yaml file would have been a lot more readable:

  values = [
    yamlencode(var.terraform_map_var)
  ]

Answer 1

I will show a way that will help you to do that easily, without any complexity of setting nested values in helm_release terraform resource.

In this example we will see how to deploy grafana helm release using terraform helm_release resource. You can test by deploying a grafana release. We're going to use values.yaml file to configure the release.

Example: Prometheus helm release terraform config

resource "helm_release" "prometheus" {
  name       = "prometheus"
  chart      = "prometheus"
  repository = "https://prometheus-community.github.io/helm-charts"
  version    = "14.8.0"
  namespace  = "prometheus"
  values = [
  "${file("values.yaml")}"
  ]
} 

Prometheus values.yaml config (just put the conf that you want in this file)

server:
  service:
    type: ClusterIP

This example works well from my side. I hope it will resolve your problem