Initial Implementation of #46

modules/aws/elb/main.tf

@@ -0,0 +1,48 @@
+resource "aws_lb_target_group" "mdm_target_group" {
+  name        = "${var.lb_name}-target-group"
+  port        = var.application_port
+  protocol    = var.application_http_protocol
+  target_type = "ip" # set target_type to ip
+  vpc_id      = var.vpc_id
+
+  stickiness {
+    enabled     = true
+    type        = "lb_cookie"
+    cookie_name = "mdm_cookie"
+  }
+
+  health_check {
+    enabled             = true
+    healthy_threshold   = 3
+    interval            = 50
+    matcher             = 200
+    path                = "/api/authorities"
+    port                = "traffic-port"
+    protocol            = var.application_http_protocol
+    timeout             = 10
+    unhealthy_threshold = 3
+  }
+}
+
+
+resource "aws_lb" "aws_lb" {
+  name                       = "${var.lb_name}-lb"
+  internal                   = var.internal
+  load_balancer_type         = "application"
+  security_groups            = var.security_group_id
+  subnets                    = var.subnet_ids
+  enable_deletion_protection = true
+  tags                       = {
+    Name = "${var.lb_name}-lb"
+  }
+}
+
+resource "aws_lb_listener" "mdm_lb_listener" {
+  load_balancer_arn = aws_lb.aws_lb.arn
+  port              = var.application_port
+  protocol          = var.application_http_protocol
+  default_action {
+    target_group_arn = aws_lb_target_group.mdm_target_group.arn
+    type             = "forward"
+  }
+}

modules/aws/elb/variables.tf

@@ -0,0 +1,27 @@
+variable "application_port" {
+  default = "The port of the application to forward traffic to"
+}
+
+variable "application_http_protocol" {
+  default = "The protocol over which to forward traffic. Used for the health check and the and the load balancer itself "
+}
+
+variable "vpc_id" {
+  description = "The id of the VPC to create the ELB In this is provided by the VPC Module"
+}
+
+variable "internal" {
+  description = "If the ELB is internally facing or externally facing"
+}
+
+variable "lb_name" {
+  description = "The name of the load balancer"
+}
+
+variable "security_group_id" {
+  default = "The security group of which this LB will belong to"
+}
+
+variable "subnet_ids" {
+  default = "The Subnets in which this LB will operate"
+}