add core_count and threads_per_core options to launch templates (#149)

Author: Dmitry1987

README.md

@@ -339,6 +339,7 @@ https://docs.aws.amazon.com/eks/latest/userguide/windows-support.html
 | <a name="input_cluster_autoscaler_enabled"></a> [cluster\_autoscaler\_enabled](#input\_cluster\_autoscaler\_enabled) | Set true to label the node group so that the [Kubernetes Cluster Autoscaler](https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/aws/README.md#auto-discovery-setup) will discover and autoscale it | `bool` | `false` | no |
 | <a name="input_cluster_name"></a> [cluster\_name](#input\_cluster\_name) | The name of the EKS cluster | `string` | n/a | yes |
 | <a name="input_context"></a> [context](#input\_context) | Single object for setting entire context at once.<br>See description of individual variables for details.<br>Leave string and numeric variables as `null` to use default value.<br>Individual variable settings (non-null) override settings in context object,<br>except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "descriptor_formats": {},<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_key_case": null,<br>  "label_order": [],<br>  "label_value_case": null,<br>  "labels_as_tags": [<br>    "unset"<br>  ],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {},<br>  "tenant": null<br>}</pre> | no |
+| <a name="input_cpu_options"></a> [cpu\_options](#input\_cpu\_options) | Configuration for the [`cpu_options` Configuration Block](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/launch_template#cpu_options) of the launch template.<br>Leave list empty for defaults. Pass list with single object with attributes matching the `cpu_options` block to configure it.<br>Note that this configures the launch template only. Some elements will be ignored by the Auto Scaling Group<br>that actually launches instances. Consult AWS documentation for details. | `list(any)` | `[]` | no |
 | <a name="input_create_before_destroy"></a> [create\_before\_destroy](#input\_create\_before\_destroy) | Set true in order to create the new node group before destroying the old one.<br>If false, the old node group will be destroyed first, causing downtime.<br>Changing this setting will always cause node group to be replaced. | `bool` | `false` | no |
 | <a name="input_delimiter"></a> [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
 | <a name="input_descriptor_formats"></a> [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.<br>Map of maps. Keys are names of descriptors. Values are maps of the form<br>`{<br>   format = string<br>   labels = list(string)<br>}`<br>(Type is `any` so the map values can later be enhanced to provide additional options.)<br>`format` is a Terraform format string to be passed to the `format()` function.<br>`labels` is a list of labels, in order, to pass to `format()` function.<br>Label values will be normalized before being passed to `format()` so they will be<br>identical to how they appear in `id`.<br>Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no |

docs/terraform.md

@@ -62,6 +62,7 @@
 | <a name="input_cluster_autoscaler_enabled"></a> [cluster\_autoscaler\_enabled](#input\_cluster\_autoscaler\_enabled) | Set true to label the node group so that the [Kubernetes Cluster Autoscaler](https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/aws/README.md#auto-discovery-setup) will discover and autoscale it | `bool` | `false` | no |
 | <a name="input_cluster_name"></a> [cluster\_name](#input\_cluster\_name) | The name of the EKS cluster | `string` | n/a | yes |
 | <a name="input_context"></a> [context](#input\_context) | Single object for setting entire context at once.<br>See description of individual variables for details.<br>Leave string and numeric variables as `null` to use default value.<br>Individual variable settings (non-null) override settings in context object,<br>except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "descriptor_formats": {},<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_key_case": null,<br>  "label_order": [],<br>  "label_value_case": null,<br>  "labels_as_tags": [<br>    "unset"<br>  ],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {},<br>  "tenant": null<br>}</pre> | no |
+| <a name="input_cpu_options"></a> [cpu\_options](#input\_cpu\_options) | Configuration for the [`cpu_options` Configuration Block](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/launch_template#cpu_options) of the launch template.<br>Leave list empty for defaults. Pass list with single object with attributes matching the `cpu_options` block to configure it.<br>Note that this configures the launch template only. Some elements will be ignored by the Auto Scaling Group<br>that actually launches instances. Consult AWS documentation for details. | `list(any)` | `[]` | no |
 | <a name="input_create_before_destroy"></a> [create\_before\_destroy](#input\_create\_before\_destroy) | Set true in order to create the new node group before destroying the old one.<br>If false, the old node group will be destroyed first, causing downtime.<br>Changing this setting will always cause node group to be replaced. | `bool` | `false` | no |
 | <a name="input_delimiter"></a> [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
 | <a name="input_descriptor_formats"></a> [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.<br>Map of maps. Keys are names of descriptors. Values are maps of the form<br>`{<br>   format = string<br>   labels = list(string)<br>}`<br>(Type is `any` so the map values can later be enhanced to provide additional options.)<br>`format` is a Terraform format string to be passed to the `format()` function.<br>`labels` is a list of labels, in order, to pass to `format()` function.<br>Label values will be normalized before being passed to `format()` so they will be<br>identical to how they appear in `id`.<br>Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no |

launch-template.tf

@@ -106,6 +106,15 @@ resource "aws_launch_template" "default" {
   user_data              = local.userdata
   tags                   = local.node_group_tags
 
+  dynamic "cpu_options" {
+    for_each = var.cpu_options
+    
+    content {
+      core_count       = lookup(cpu_options.value, "core_count", null)
+      threads_per_core = lookup(cpu_options.value, "threads_per_core", null)
+    }
+  }
+
   dynamic "placement" {
     for_each = var.placement
 

variables.tf

@@ -404,6 +404,17 @@ variable "placement" {
     EOT
 }
 
+variable "cpu_options" {
+  type        = list(any)
+  default     = []
+  description = <<-EOT
+    Configuration for the [`cpu_options` Configuration Block](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/launch_template#cpu_options) of the launch template.
+    Leave list empty for defaults. Pass list with single object with attributes matching the `cpu_options` block to configure it.
+    Note that this configures the launch template only. Some elements will be ignored by the Auto Scaling Group
+    that actually launches instances. Consult AWS documentation for details.
+    EOT
+}
+
 variable "enclave_enabled" {
   type        = bool
   default     = false