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feat(helm): add helm template support
Signed-off-by: Frederic Leger <frederic@webofmars.com>
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‎k8s/helm-template/.tflint.hcl‎

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

‎k8s/helm-template/.tool-versions‎

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terraform 1.3.1

‎k8s/helm-template/README.md‎

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

‎k8s/helm-template/helm-template.tf‎

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

‎k8s/helm-template/main.tf‎

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

‎k8s/helm-template/outputs.tf‎

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

‎k8s/helm-template/providers.tf‎

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

‎k8s/helm-template/variables.tf‎

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

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