feat(helm): add helm template support

k8s/helm-template/.tflint.hcl

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+plugin "terraform" {
+  enabled = true
+  preset  = "recommended"
+}

k8s/helm-template/.tool-versions

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+terraform 1.3.1

k8s/helm-template/README.md

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+# helm template
+
+Generates kubernetes YAML manifests through helm
+
+<!-- BEGIN_TF_DOCS -->
+## Requirements
+
+| Name | Version |
+|------|---------|
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | ~> 1.3 |
+| <a name="requirement_helm"></a> [helm](#requirement\_helm) | >= 2.17.0, < 3.0.0 |
+| <a name="requirement_time"></a> [time](#requirement\_time) | ~> 0.9.1 |
+
+## Providers
+
+| Name | Version |
+|------|---------|
+| <a name="provider_helm"></a> [helm](#provider\_helm) | >= 2.17.0, < 3.0.0 |
+| <a name="provider_time"></a> [time](#provider\_time) | ~> 0.9.1 |
+
+## Modules
+
+No modules.
+
+## Resources
+
+| Name | Type |
+|------|------|
+| [time_static.last_update](https://registry.terraform.io/providers/hashicorp/time/latest/docs/resources/static) | resource |
+| [helm_template.main](https://registry.terraform.io/providers/hashicorp/helm/latest/docs/data-sources/template) | data source |
+
+## Inputs
+
+| Name | Description | Type | Default | Required |
+|------|-------------|------|---------|:--------:|
+| <a name="input_atomic"></a> [atomic](#input\_atomic) | Atomic deployment | `bool` | `false` | no |
+| <a name="input_chart"></a> [chart](#input\_chart) | Chart to use for the current deployment | `string` | `""` | no |
+| <a name="input_chart_version"></a> [chart\_version](#input\_chart\_version) | Version of the chart to use for the current deployment | `string` | `""` | no |
+| <a name="input_create_namespace"></a> [create\_namespace](#input\_create\_namespace) | Create namespace | `bool` | `true` | no |
+| <a name="input_customer"></a> [customer](#input\_customer) | Customer for the current deployment | `string` | `""` | no |
+| <a name="input_kubeconfig_context"></a> [kubeconfig\_context](#input\_kubeconfig\_context) | Kubeconfig context to use for the current deployment | `string` | `null` | no |
+| <a name="input_kubeconfig_paths"></a> [kubeconfig\_paths](#input\_kubeconfig\_paths) | List of kubeconfig paths to use for the current deployment | `list(string)` | `[]` | no |
+| <a name="input_name"></a> [name](#input\_name) | The name of the helm release | `string` | n/a | yes |
+| <a name="input_namespace"></a> [namespace](#input\_namespace) | Namespace to use for the current deployment | `string` | `""` | no |
+| <a name="input_repository"></a> [repository](#input\_repository) | Repository to use for the current deployment | `string` | `""` | no |
+| <a name="input_sets"></a> [sets](#input\_sets) | List of sets to use for the current deployment | `list(map(string))` | `[]` | no |
+| <a name="input_tags"></a> [tags](#input\_tags) | Default tags to add to resources | `map(any)` | `{}` | no |
+| <a name="input_values"></a> [values](#input\_values) | List of values to use for the current deployment | `list(string)` | `[]` | no |
+| <a name="input_wait"></a> [wait](#input\_wait) | Wait for deployment to complete | `bool` | `true` | no |
+
+## Outputs
+
+| Name | Description |
+|------|-------------|
+| <a name="output_manifest"></a> [manifest](#output\_manifest) | Rendered Kubernetes manifests generated by Helm |
+| <a name="output_name"></a> [name](#output\_name) | The name of the helm release |
+| <a name="output_namespace"></a> [namespace](#output\_namespace) | The namespace of the helm release |
+<!-- END_TF_DOCS -->

k8s/helm-template/helm-template.tf

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+data "helm_template" "main" {
+  name             = var.name
+  repository       = var.repository
+  chart            = var.chart
+  version          = var.chart_version
+  namespace        = var.namespace
+  atomic           = var.atomic
+  create_namespace = var.create_namespace
+  wait             = var.wait
+
+  values = var.values
+
+  dynamic "set" {
+    for_each = var.sets
+    content {
+      name  = set.value["name"]
+      value = set.value["value"]
+    }
+  }
+
+}

k8s/helm-template/main.tf

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+locals {
+  # tflint-ignore: terraform_unused_declarations
+  interpolated_tags = merge({
+    "Name"           = var.name,
+    "Customer"       = var.customer,
+    "ManagedBy"      = "Terraform",
+    "LastModifiedAt" = time_static.last_update.rfc3339,
+    },
+    var.tags
+  )
+}
+
+resource "time_static" "last_update" {
+}

k8s/helm-template/outputs.tf

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+output "name" {
+  description = "The name of the helm release"
+  value       = data.helm_template.main.name
+}
+
+output "namespace" {
+  description = "The namespace of the helm release"
+  value       = data.helm_template.main.namespace
+}
+
+output "manifest" {
+  description = "Rendered Kubernetes manifests generated by Helm"
+  sensitive   = true
+  value       = data.helm_template.main.manifest
+}

k8s/helm-template/providers.tf

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+terraform {
+  required_version = "~> 1.3"
+  required_providers {
+    helm = {
+      source  = "hashicorp/helm",
+      version = ">= 2.17.0, < 3.0.0"
+    }
+    time = {
+      source  = "hashicorp/time",
+      version = "~> 0.9.1"
+    }
+  }
+}
+
+provider "helm" {
+  kubernetes {
+    config_paths   = var.kubeconfig_paths
+    config_context = var.kubeconfig_context
+  }
+}

k8s/helm-template/variables.tf

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+variable "name" {
+  description = "The name of the helm release"
+  type        = string
+}
+
+variable "customer" {
+  description = "Customer for the current deployment"
+  type        = string
+  default     = ""
+}
+
+variable "tags" {
+  description = "Default tags to add to resources"
+  type        = map(any)
+  default     = {}
+}
+
+# module specific variables
+variable "kubeconfig_paths" {
+  description = "List of kubeconfig paths to use for the current deployment"
+  type        = list(string)
+  default     = []
+}
+
+variable "kubeconfig_context" {
+  description = "Kubeconfig context to use for the current deployment"
+  type        = string
+  default     = null
+}
+
+variable "repository" {
+  description = "Repository to use for the current deployment"
+  type        = string
+  default     = ""
+}
+
+variable "chart" {
+  description = "Chart to use for the current deployment"
+  type        = string
+  default     = ""
+}
+
+variable "chart_version" {
+  description = "Version of the chart to use for the current deployment"
+  type        = string
+  default     = ""
+}
+
+variable "namespace" {
+  description = "Namespace to use for the current deployment"
+  type        = string
+  default     = ""
+}
+
+variable "sets" {
+  description = "List of sets to use for the current deployment"
+  type        = list(map(string))
+  default     = []
+}
+
+variable "values" {
+  description = "List of values to use for the current deployment"
+  type        = list(string)
+  default     = []
+}
+
+variable "atomic" {
+  description = "Atomic deployment"
+  type        = bool
+  default     = false
+}
+
+variable "create_namespace" {
+  description = "Create namespace"
+  type        = bool
+  default     = true
+}
+
+variable "wait" {
+  description = "Wait for deployment to complete"
+  type        = bool
+  default     = true
+}