feat: Add variable resource_requirements

The `resource_requirements` variable is supported by the
`aws_ecs_task_definition` resource. This allows users to specify the
type and amount of resources (like GPUs) to assign to a container.

Author: adamantike

README.md

@@ -317,6 +317,7 @@ module "default_backend_web_app" {
 | <a name="input_region"></a> [region](#input\_region) | AWS Region for S3 bucket | `string` | `null` | no |
 | <a name="input_repo_name"></a> [repo\_name](#input\_repo\_name) | GitHub repository name of the application to be built and deployed to ECS | `string` | `""` | no |
 | <a name="input_repo_owner"></a> [repo\_owner](#input\_repo\_owner) | GitHub Organization or Username | `string` | `""` | no |
+| <a name="input_resource_requirements"></a> [resource\_requirements](#input\_resource\_requirements) | The type and amount of a resource to assign to a container. The only supported resource is a GPU. | <pre>list(object({<br/>    type  = string<br/>    value = string<br/>  }))</pre> | `null` | no |
 | <a name="input_runtime_platform"></a> [runtime\_platform](#input\_runtime\_platform) | Zero or one runtime platform configurations that containers in your task may use.<br/>Map of strings with optional keys `operating_system_family` and `cpu_architecture`.<br/>See `runtime_platform` docs https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/ecs_task_definition#runtime_platform | `list(map(string))` | `[]` | no |
 | <a name="input_secrets"></a> [secrets](#input\_secrets) | The secrets to pass to the container. This is a list of maps | <pre>list(object({<br/>    name      = string<br/>    valueFrom = string<br/>  }))</pre> | `null` | no |
 | <a name="input_service_registries"></a> [service\_registries](#input\_service\_registries) | The service discovery registries for the service. The maximum number of service\_registries blocks is 1. The currently supported service registry is Amazon Route 53 Auto Naming Service - `aws_service_discovery_service`; see `service_registries` docs https://www.terraform.io/docs/providers/aws/r/ecs_service.html#service_registries-1 | <pre>list(object({<br/>    registry_arn   = string<br/>    port           = optional(number)<br/>    container_name = optional(string)<br/>    container_port = optional(number)<br/>  }))</pre> | `[]` | no |

main.tf

@@ -96,6 +96,7 @@ module "container_definition" {
   mount_points                 = var.mount_points
   container_depends_on         = local.container_depends_on
   repository_credentials       = var.container_repo_credentials
+  resource_requirements        = var.resource_requirements
   linux_parameters = merge(
     var.linux_parameters,
     var.exec_enabled ? { initProcessEnabled = true } : {}

variables.tf

@@ -150,6 +150,16 @@ variable "ignore_changes_desired_count" {
   default     = false
 }
 
+# https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_ResourceRequirement.html
+variable "resource_requirements" {
+  type = list(object({
+    type  = string
+    value = string
+  }))
+  description = "The type and amount of a resource to assign to a container. The only supported resource is a GPU."
+  default     = null
+}
+
 variable "system_controls" {
   type        = list(map(string))
   description = "A list of namespaced kernel parameters to set in the container, mapping to the --sysctl option to docker run. This is a list of maps: { namespace = \"\", value = \"\"}"