add burstable_mode (#116)

* add burstable_mode

* Update README.md

* Auto Format

Co-authored-by: nitrocode <nitrocode@users.noreply.github.com>
Co-authored-by: cloudpossebot <11232728+cloudpossebot@users.noreply.github.com>

Author: 3 people

README.md

@@ -261,6 +261,7 @@ Available targets:
 | <a name="input_associate_public_ip_address"></a> [associate\_public\_ip\_address](#input\_associate\_public\_ip\_address) | Associate a public IP address with the instance | `bool` | `false` | no |
 | <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element. | `list(string)` | `[]` | no |
 | <a name="input_availability_zone"></a> [availability\_zone](#input\_availability\_zone) | Availability Zone the instance is launched in. If not set, will be launched in the first AZ of the region | `string` | `""` | no |
+| <a name="input_burstable_mode"></a> [burstable\_mode](#input\_burstable\_mode) | Enable burstable mode for the instance. Can be standard or unlimited. Applicable only for T2/T3/T4g instance types. | `string` | `null` | no |
 | <a name="input_comparison_operator"></a> [comparison\_operator](#input\_comparison\_operator) | The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold. | `string` | `"GreaterThanOrEqualToThreshold"` | no |
 | <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_default_alarm_action"></a> [default\_alarm\_action](#input\_default\_alarm\_action) | Default alarm action | `string` | `"action/actions/AWS_EC2.InstanceId.Reboot/1.0"` | no |

docs/terraform.md

@@ -64,6 +64,7 @@
 | <a name="input_associate_public_ip_address"></a> [associate\_public\_ip\_address](#input\_associate\_public\_ip\_address) | Associate a public IP address with the instance | `bool` | `false` | no |
 | <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element. | `list(string)` | `[]` | no |
 | <a name="input_availability_zone"></a> [availability\_zone](#input\_availability\_zone) | Availability Zone the instance is launched in. If not set, will be launched in the first AZ of the region | `string` | `""` | no |
+| <a name="input_burstable_mode"></a> [burstable\_mode](#input\_burstable\_mode) | Enable burstable mode for the instance. Can be standard or unlimited. Applicable only for T2/T3/T4g instance types. | `string` | `null` | no |
 | <a name="input_comparison_operator"></a> [comparison\_operator](#input\_comparison\_operator) | The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold. | `string` | `"GreaterThanOrEqualToThreshold"` | no |
 | <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_default_alarm_action"></a> [default\_alarm\_action](#input\_default\_alarm\_action) | Default alarm action | `string` | `"action/actions/AWS_EC2.InstanceId.Reboot/1.0"` | no |

main.tf

@@ -149,6 +149,10 @@ resource "aws_instance" "default" {
     http_tokens                 = var.metadata_http_tokens_required ? "required" : "optional"
   }
 
+  credit_specification {
+    cpu_credits = var.burstable_mode
+  }
+
   tags = module.this.tags
 
   volume_tags = var.volume_tags_enabled ? module.this.tags : {}

variables.tf

@@ -34,6 +34,12 @@ variable "instance_type" {
   default     = "t2.micro"
 }
 
+variable "burstable_mode" {
+  type        = string
+  description = "Enable burstable mode for the instance. Can be standard or unlimited. Applicable only for T2/T3/T4g instance types."
+  default     = null
+}
+
 variable "vpc_id" {
   type        = string
   description = "The ID of the VPC that the instance security group belongs to"