allow task defs to be used for fargate

main.tf

@@ -135,6 +135,11 @@ resource "aws_ecs_task_definition" "ecs_task_definition" {
  ipc_mode = var.ipc_mode
  network_mode = var.network_mode
  pid_mode = var.pid_mode
+
+ # Fargate requires cpu and memory to be defined at the task level
+ cpu = var.cpu == 0 ? "null" : var.cpu
+ memory = var.memory == 0 ? "null" : var.memory
+
  dynamic "placement_constraints" {
  for_each = var.placement_constraints
  content {

variables.tf

@@ -95,7 +95,7 @@ variable "interactive" {
 }
 
 variable "ipc_mode" {
- default = "host"
+ default = null
  description = "The IPC resource namespace to use for the containers in the task"
 }
 
@@ -144,7 +144,7 @@ variable "network_mode" {
 }
 
 variable "pid_mode" {
- default = "host"
+ default = null
  description = "The process namespace to use for the containers in the task"
 }