Merge pull request #12 from tbobm/feat/variabilize-loadbalancer

feat(lb): variabilize Load Balancer addon

README.md

@@ -134,6 +134,7 @@ No modules.
 | <a name="output_ecr_url"></a> [ecr\_url](#output\_ecr\_url) | The ECR repository URL |
 | <a name="output_ecs_cluster"></a> [ecs\_cluster](#output\_ecs\_cluster) | The ECS cluster name |
 | <a name="output_ecs_service"></a> [ecs\_service](#output\_ecs\_service) | The ECS service name |
+| <a name="output_loadbalancer"></a> [loadbalancer](#output\_loadbalancer) | The AWS Load Balancer resources (`loadbalancer`, `target_group` and `lb_listener`) |
 | <a name="output_publisher_access_key"></a> [publisher\_access\_key](#output\_publisher\_access\_key) | AWS\_ACCESS\_KEY to publish to ECR |
 | <a name="output_publisher_secret_key"></a> [publisher\_secret\_key](#output\_publisher\_secret\_key) | AWS\_SECRET\_ACCESS\_KEY to upload to the ECR |
 <!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->

lb.tf

@@ -1,10 +1,41 @@
 resource "aws_lb" "this" {
-  count = local.addons.loadbalancer.enable == true ? 1 : 0
+  count = local.addons.loadbalancer.enable ? 1 : 0
+
+  name        = lookup(local.lb, "name", null)
+  name_prefix = lookup(local.lb, "name_prefix", null)
 
-  name               = local.lb["name"]
   internal           = local.lb["internal"]
   load_balancer_type = "application"
-  subnets            = var.networking["subnet_ids"]
+
+  subnets         = var.networking["subnet_ids"]
+  security_groups = lookup(local.lb, "security_groups", [])
+
+  enable_deletion_protection = lookup(local.lb, "enable_deletion_protection", false)
+
+  dynamic "access_logs" {
+    for_each = lookup(local.lb, "access_logs", {}) != {} ? [1] : []
+
+    content {
+      bucket = local.lb.access_logs["bucket"]
+
+      prefix  = lookup(local.lb.access_logs, "prefix", "")
+      enabled = lookup(local.lb.access_logs, "enabled", false)
+    }
+  }
+
+  dynamic "subnet_mapping" {
+    for_each = lookup(local.lb, "subnet_mapping", {}) != {} ? [1] : []
+
+    content {
+      subnet_id = local.lb.subnet_mapping["subnet_id"]
+
+      allocation_id        = lookup(local.lb.subnet_mapping, "allocation_id", "")
+      private_ipv4_address = lookup(local.lb.subnet_mapping, "private_ipv4_address", "")
+      ipv6_address         = lookup(local.lb.subnet_mapping, "ipv6_address", "")
+    }
+  }
+
+  tags = lookup(local.lb, "tags", {})
 }
 
 resource "aws_lb_target_group" "this" {

locals.tf

@@ -12,7 +12,6 @@ locals {
   ecs = merge(local.ecs_defaults, var.ecs_values)
 
   lb_defaults = {
-    name     = "tf-alb"
     internal = false
     target_group = {
       name     = "tf-alb-tg"

output.tf

@@ -8,6 +8,15 @@ output "app_url" {
   description = "The public ALB DNS"
 }
 
+output "loadbalancer" {
+  value = !local.addons.loadbalancer.enable ? null : {
+    loadbalancer = aws_lb.this.0
+    target_group = aws_lb_target_group.this.0
+    lb_listener  = aws_lb_listener.this.0
+  }
+  description = "The AWS Load Balancer resources (`loadbalancer`, `target_group` and `lb_listener`)"
+}
+
 output "publisher_access_key" {
   value       = local.addons.iam.enable ? aws_iam_access_key.publisher.0.id : ""
   description = "AWS_ACCESS_KEY to publish to ECR"