Add raw YAML input to set extra values for cluster-autoscaler (#45)

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+
+## [5.2.0] - 2024-02-16
+
+- Allow setting extra values to cluster-autoscaler Helm chart.
+
 ## [5.1.0] - 2024-02-15
 
 - Allow configuring NodeAffinity for ingress-nginx controller.

README.md

@@ -106,11 +106,12 @@ module "eks_main" {
     }
   ]
 
-  helm_ingress_nginx_enabled       = true 
-  helm_cluster_autoscaler_enabled  = true
-  helm_metrics_server_enabled      = true 
-  helm_cert_manager_enabled        = true
-  ingress_node_affinity            = {
+  helm_ingress_nginx_enabled           = true 
+  helm_cluster_autoscaler_enabled      = true
+  cluster_autoscaler_extra_helm_values = file("${path.root}/resources/helm/values/cluster-autoscaler.yaml")
+  helm_metrics_server_enabled          = true 
+  helm_cert_manager_enabled            = true
+  ingress_node_affinity                = {
     enabled     = true,
     label_key   = "nodegroup",
     label_value = "${var.env}-eks-spot"
@@ -253,6 +254,7 @@ module "eks_main" {
 | helm\_cluster\_autoscaler\_enabled | Set if cluster-autoscaler Helm chart will be installed on the cluster. | `bool` | `false` | no |
 | cluster\_autoscaler\_chart\_version | Set the version for the chart | `string` | `9.16.1` | no |
 | cluster\_autoscaler\_priority\_class\_name | allows you to set a priority class | `string` | `""` | no |
+| cluster\_autoscaler\_extra\_helm\_values | Raw YAML containing additional cluster-autoscaler Helm values | `string` | `""` | no |
 | helm\_metrics\_server\_enabled | Set if metrics-server Helm chart will be installed on the cluster. | `bool` | `false` | no |
 | metrics\_server\_chart\_version | Set the version for the chart | `string` | `1.6.1` | no |
 | metrics\_server\_priority\_class\_name | allows you to set a priority class | `string` | `""` | no |

helm.tf

@@ -159,6 +159,8 @@ resource "helm_release" "cluster_autoscaler" {
     value = var.cluster_autoscaler_priority_class_name
   }
 
+  values = [var.cluster_autoscaler_extra_helm_values]
+
   depends_on = [time_sleep.wait_20_seconds]
 
 }

variables.tf

@@ -242,6 +242,10 @@ variable "cluster_autoscaler_priority_class_name" {
     default = ""
 }
 
+variable "cluster_autoscaler_extra_helm_values" {
+  default = ""
+}
+
 # metrics-server
 variable "helm_metrics_server_enabled" {
     default = false