Fix CodeDeploy compatibility issues / Adds additional load balancer f…

…eature / Fixes tests (#97) Co-authored-by: Jared Darling <jdarling@aimconsulting.com>
cn-terraform · Oct 2, 2023 · 03ccda2 · 03ccda2
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diff --git a/README.md b/README.md
@@ -66,8 +66,8 @@ In order to run all checks at any point run the following command:
 
 | Name | Source | Version |
 |------|--------|---------|
-| <a name="module_ecs-alb"></a> [ecs-alb](#module\_ecs-alb) | cn-terraform/ecs-alb/aws | 1.0.28 |
-| <a name="module_ecs-autoscaling"></a> [ecs-autoscaling](#module\_ecs-autoscaling) | cn-terraform/ecs-service-autoscaling/aws | 1.0.6 |
+| <a name="module_ecs-alb"></a> [ecs-alb](#module\_ecs-alb) | cn-terraform/ecs-alb/aws | 1.0.32 |
+| <a name="module_ecs-autoscaling"></a> [ecs-autoscaling](#module\_ecs-autoscaling) | cn-terraform/ecs-service-autoscaling/aws | 1.0.6   |
 
 ## Resources
 

diff --git a/examples/test/.terraform.lock.hcl b/examples/test/.terraform.lock.hcl
diff --git a/examples/test/main.tf b/examples/test/main.tf
@@ -1,15 +1,54 @@
+locals {
+  public_subnet_ids  = [for s in module.base-network.public_subnets : s.id]
+  private_subnet_ids = [for s in module.base-network.private_subnets : s.id]
+}
+
 module "cluster" {
   source = "cn-terraform/ecs-cluster/aws"
   name   = "test-cluster"
 }
 
 module "base-network" {
-  source                                      = "cn-terraform/networking/aws"
-  name_prefix                                 = "test-networking"
-  vpc_cidr_block                              = "192.168.0.0/16"
-  availability_zones                          = ["us-east-1a", "us-east-1b", "us-east-1c", "us-east-1d"]
-  public_subnets_cidrs_per_availability_zone  = ["192.168.0.0/19", "192.168.32.0/19", "192.168.64.0/19", "192.168.96.0/19"]
-  private_subnets_cidrs_per_availability_zone = ["192.168.128.0/19", "192.168.160.0/19", "192.168.192.0/19", "192.168.224.0/19"]
+  source = "cn-terraform/networking/aws"
+
+  cidr_block = "192.168.0.0/16"
+
+  vpc_additional_tags = {
+    vpc_tag1 = "tag1",
+    vpc_tag2 = "tag2",
+  }
+
+  public_subnets = {
+    first_public_subnet = {
+      availability_zone = "us-east-1a"
+      cidr_block        = "192.168.0.0/19"
+    }
+    second_public_subnet = {
+      availability_zone = "us-east-1b"
+      cidr_block        = "192.168.32.0/19"
+    }
+  }
+
+  public_subnets_additional_tags = {
+    public_subnet_tag1 = "tag1",
+    public_subnet_tag2 = "tag2",
+  }
+
+  private_subnets = {
+    first_private_subnet = {
+      availability_zone = "us-east-1a"
+      cidr_block        = "192.168.128.0/19"
+    }
+    second_private_subnet = {
+      availability_zone = "us-east-1b"
+      cidr_block        = "192.168.160.0/19"
+    }
+  }
+
+  private_subnets_additional_tags = {
+    private_subnet_tag1 = "tag1",
+    private_subnet_tag2 = "tag2",
+  }
 }
 
 module "td" {
@@ -25,8 +64,8 @@ module "service" {
   vpc_id              = module.base-network.vpc_id
   ecs_cluster_arn     = module.cluster.aws_ecs_cluster_cluster_arn
   task_definition_arn = module.td.aws_ecs_task_definition_td_arn
-  public_subnets      = module.base-network.public_subnets_ids
-  private_subnets     = module.base-network.private_subnets_ids
+  public_subnets      = local.public_subnet_ids
+  private_subnets     = local.private_subnet_ids
   container_name      = "test"
   ecs_cluster_name    = module.cluster.aws_ecs_cluster_cluster_name
 }
diff --git a/examples/test/mock_provider.tf b/examples/test/mock_provider.tf
@@ -24,6 +24,8 @@ provider "aws" {
     cloudformation = "http://localstack:4566"
     cloudwatch     = "http://localstack:4566"
     dynamodb       = "http://localstack:4566"
+    ec2            = "http://localstack:4566"
+    ecs            = "http://localstack:4566" #<--Requires Pro version
     es             = "http://localstack:4566"
     firehose       = "http://localstack:4566"
     iam            = "http://localstack:4566"

diff --git a/main.tf b/main.tf
@@ -5,8 +5,7 @@ module "ecs-alb" {
   count = var.custom_lb_arn == null ? 1 : 0
 
   source  = "cn-terraform/ecs-alb/aws"
-  version = "1.0.31"
-
+  version = "1.0.32"
 
   name_prefix = var.name_prefix
   vpc_id      = var.vpc_id
@@ -95,6 +94,15 @@ resource "aws_ecs_service" "service" {
       container_port   = load_balancer.value
     }
   }
+  dynamic "load_balancer" {
+    for_each = var.additional_lbs
+    content {
+      target_group_arn = load_balancer.value.target_group_arn
+      container_name   = var.container_name
+      container_port   = load_balancer.value.container_port
+    }
+  }
+
   network_configuration {
     security_groups  = concat([aws_security_group.ecs_tasks_sg.id], var.security_groups)
     subnets          = var.assign_public_ip ? var.public_subnets : var.private_subnets
@@ -135,13 +143,23 @@ resource "aws_ecs_service" "service" {
       container_port = lookup(service_registries.value, "container_port", null)
     }
   }
-  task_definition = var.task_definition_arn
+  #When deployment_controller is EXTERNAL, task_definition must not be used
+  task_definition = lookup(one(var.deployment_controller[*]), "type", "ECS") != "EXTERNAL" ? var.task_definition_arn : null
+
   tags = merge(
     var.tags,
     {
       Name = "${var.name_prefix}-ecs-tasks-sg"
     },
   )
+
+  lifecycle {
+    ignore_changes = [
+      desired_count,   #Can be changed by autoscaling
+      task_definition, #Can be changed by deployments (CodeDeploy)
+      deployment_circuit_breaker
+    ]
+  }
 }
 
 #------------------------------------------------------------------------------

diff --git a/variables.tf b/variables.tf
@@ -74,9 +74,13 @@ variable "ordered_placement_strategy" {
 }
 
 variable "deployment_controller" {
-  description = "(Optional) Deployment controller"
+  description = "(Optional) Deployment controller default: 'ECS'"
   type        = list(any)
-  default     = []
+  default = [
+    {
+      type = "ECS"
+    }
+  ]
 }
 
 variable "placement_constraints" {
@@ -102,7 +106,9 @@ variable "service_registries" {
 }
 
 variable "task_definition_arn" {
-  description = "(Required) The full ARN of the task definition that you want to run in your service."
+  description = "(Optional) The full ARN of the task definition that you want to run in your service."
+  default     = ""
+  type        = string
 }
 
 variable "force_new_deployment" {
@@ -224,6 +230,19 @@ variable "custom_lb_arn" {
   default     = null
 }
 
+variable "additional_lbs" {
+  default     = {}
+  description = "Additional load balancers to add to ECS service"
+  type = map(object
+    (
+      {
+        target_group_arn = string
+        container_port   = number
+      }
+    )
+  )
+}
+
 variable "lb_internal" {
   description = "(Optional) If true, the LB will be internal."
   type        = bool