Run application

examples/terraform-aws-modules/index.js

@@ -4,7 +4,7 @@ const app = express()
 
 app.get('/', (_req, res) => {
 	res.send(`
-		Hello World!
+		This "Hello world!" is powered by Terraform AWS Modules!
 		The NODE_ENV is ${process.env.NODE_ENV}.
 		Datetime now: ${new Date().toISOString()}.
 		The MY_INPUT_ENV_VAR is ${process.env.MY_INPUT_ENV_VAR}.

examples/terraform-aws-modules/main.tf

@@ -174,6 +174,30 @@ resource "aws_ecs_task_definition" "this" {
 	requires_compatibilities = ["FARGATE"]
 }
 
+# * Step 7 - Run our application.
+resource "aws_ecs_service" "this" {
+	cluster = module.ecs.cluster_id
+	desired_count = 1
+	launch_type = "FARGATE"
+	name = "${local.example}-service"
+	task_definition = resource.aws_ecs_task_definition.this.arn
+
+	lifecycle {
+		ignore_changes = [desired_count] # Allow external changes to happen without Terraform conflicts, particularly around auto-scaling.
+	}
+
+	load_balancer {
+		container_name = local.container_name
+		container_port = local.container_port
+		target_group_arn = module.alb.target_group_arns[0]
+	}
+
+	network_configuration {
+		security_groups = [module.vpc.default_security_group_id]
+		subnets = module.vpc.private_subnets
+	}
+}
+
 # TODO: Update Step number
 # * Step XXX - See our application working.
 # * Output the URL of our Application Load Balancer so that we can connect to