Feature/improve tg naming (#4)

* improve tag support and expose host port

* fix formatting

* fix for dynamic port mapping

* improve tg naming

Author: ghaddow

README.md

@@ -88,6 +88,7 @@ Module managed by [Marcin Cuber](https://github.com/marcincuber) [LinkedIn](http
 | task\_definition\_cpu | Amount of CPU to reserve for the task. | number | `"256"` | no |
 | task\_definition\_memory | The soft limit (in MiB) of memory to reserve for the container. | number | `"512"` | no |
 | task\_host\_port | The port number on the container instance to reserve for your container. | number | `"0"` | no |
+| target\_group\_name | The name for the tasks target group. | string | `""` | no |
 
 ## Outputs
 

main.tf

@@ -72,6 +72,7 @@ resource "aws_security_group_rule" "egress_service" {
 # Load Balancer Target group
 #####
 resource "aws_lb_target_group" "task" {
+  name = var.target_group_name !="" ? var.target_group_name :  "${var.name_prefix}-target-${var.task_container_port}"
   vpc_id      = var.vpc_id
   protocol    = var.task_container_protocol
   port        = var.task_container_port
@@ -98,7 +99,7 @@ resource "aws_lb_target_group" "task" {
   tags = merge(
     var.tags,
     {
-      Name = "${var.name_prefix}-target-${var.task_container_port}"
+      Name = var.target_group_name !="" ? var.target_group_name :  "${var.name_prefix}-target-${var.task_container_port}"
     },
   )
 }

variables.tf

@@ -152,3 +152,9 @@ variable "propogate_tags" {
   description = "Specifies whether to propagate the tags from the task definition or the service to the tasks. The valid values are SERVICE and TASK_DEFINITION."
   default     = "TASK_DEFINITION"
 }
+
+variable "target_group_name" {
+  type = "string"
+  default = ""
+  description = "The name for the tasks target group"
+}