Helm chart is not utilizing helms create_namespace

[mariuskimmina]

We are using the helm chart from terraform as follows:

resource "kubernetes_namespace" "k6" {
  metadata {
    name = var.namespace
  }
}

resource "helm_release" "k6_operator" {
  name        = "k6-operator"
  repository  = "https://grafana.github.io/helm-charts"
  chart       = "k6-operator"
  namespace   = var.namespace
  version     = var.operator_chart_version
  max_history = var.helm_release_max_history
  depends_on  = [kubernetes_namespace.k6]
  create_namespace = false
}

Now this fails with

│ Error: Unable to continue with install: Namespace "k6-testing" in namespace "" exists and cannot be imported into the current release: invalid ownership metadata; label validation error: missing key "app.kubernetes.io/managed-by": must be set to "Helm"; annotation validation error: missing key "meta.helm.sh/release-name": must be set to "k6-operator"; annotation validation error: missing key "meta.helm.sh/release-namespace": must be set to "k6-testing"
│
│   with module.k6.helm_release.k6_operator,
│   on ../../modules/k6/main.tf line 7, in resource "helm_release" "k6_operator":
│    7: resource "helm_release" "k6_operator" {

The reason for this is that the helm chart currently doesn't utilize create_namespace provided by Helm but instead it creates it's own Namespace object

{{- if .Values.namespace.create }}
apiVersion: v1
kind: Namespace
metadata:
  name: {{- include "k6-operator.namespace" . }}
  labels:
    app.kubernetes.io/name: {{ include "k6-operator.fullname" . }}
    control-plane: "controller-manager"
    {{- with .Values.customLabels }}
      {{- toYaml . | nindent 4 }}
    {{- end }}
  annotations:
    {{- include "k6-operator.customAnnotations" . | default "" | nindent 4 }}
{{- end }}

This can of course be worked around by setting

set {
    name  = "namespace.create"
    value = "false"
}

It would be nice if the helm standard 'create_namespace` could be used instead tho.

Somewhat related: helm/helm#2853

Helm chart version (if applicable)

3.10.1