Adding the task placement constraint in the main.tf for ecs service creation (#21)

Author: balajimoses

README.md

@@ -152,8 +152,9 @@ No resources.
 | <a name="input_service_security_groups"></a> [service\_security\_groups](#input\_service\_security\_groups) | Security group IDs to attach to your ECS Service | `list(string)` | `[]` | no |
 | <a name="input_service_subnets"></a> [service\_subnets](#input\_service\_subnets) | Private subnets for ECS | `list(string)` | `[]` | no |
 | <a name="input_service_target_cpu_value"></a> [service\_target\_cpu\_value](#input\_service\_target\_cpu\_value) | Autoscale when CPU Usage value over the specified value. Must be specified if `enable_cpu_based_autoscaling` is `true`. | `number` | `70` | no |
-| <a name="input_service_task_execution_role_arn"></a> [service\_task\_execution\_role\_arn](#input\_service\_task\_execution\_role\_arn) | Default IAM role for ECS execution | `string` | n/a | yes |
+| <a name="input_service_task_execution_role_arn"></a> [service\_task\_execution\_role\_arn](#input\_service\_task\_execution\_role\_arn) | Default IAM role for ECS execution | `string` | `""` | no |
 | <a name="input_service_task_role_arn"></a> [service\_task\_role\_arn](#input\_service\_task\_role\_arn) | Default IAM role for ECS task | `string` | `""` | no |
+| <a name="input_task_placement_constraints"></a> [task\_placement\_constraints](#input\_task\_placement\_constraints) | The rules that are taken into consideration during task placement. Maximum number of placement\_constraints is 10 | <pre>list(object({<br>    type       = string<br>    expression = string<br>  }))</pre> | `[]` | no |
 
 ## Outputs
 

main.tf

@@ -68,7 +68,8 @@ module "service" {
 
   assign_public_ip = var.assign_public_ip
 
-  enable_execute_command = var.enable_execute_command
+  enable_execute_command     = var.enable_execute_command
+  task_placement_constraints = var.task_placement_constraints
 }
 
 module "service_cpu_autoscaling_policy" {

variables.tf

@@ -268,3 +268,12 @@ variable "service_scale_out_cooldown" {
   type        = number
   default     = 300
 }
+
+variable "task_placement_constraints" {
+  description = "The rules that are taken into consideration during task placement. Maximum number of placement_constraints is 10"
+  type = list(object({
+    type       = string
+    expression = string
+  }))
+  default = []
+}