BATIAI-1443: Updating to create cluster by default (#9)

CHANGELOG.md

@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [5.0.0] - 2023-03-17
+### Breaking
+- Now will create the ECS cluster for you unless disabled with `create_ecs_cluster = false`
+
 ## [4.0.0] - 2022-02-15
 ### Breaking
 - Removing the unneeded var nat_gateway_public_ip_cidrs

main.tf

@@ -64,7 +64,7 @@ module "gatus" {
 
   container_port = 8080
 
-  cluster_name = var.cluster_name
+  cluster_name = var.create_ecs_cluster ? aws_ecs_cluster.cluster[0].name : data.aws_ecs_cluster.cluster[0].cluster_name
 
   iam_role_path                 = var.iam_role_path
   iam_role_permissions_boundary = var.iam_role_permissions_boundary
@@ -182,3 +182,19 @@ resource "aws_security_group_rule" "allow_fargate_into_efs" {
   security_group_id        = aws_security_group.efs.id
   source_security_group_id = module.gatus.security_group_id
 }
+
+# Create or fetch the ECS cluster
+resource "aws_ecs_cluster" "cluster" {
+  count = var.create_ecs_cluster ? 1 : 0
+  name  = var.cluster_name
+
+  setting {
+    name  = "containerInsights"
+    value = "enabled"
+  }
+}
+
+data "aws_ecs_cluster" "cluster" {
+  count        = var.create_ecs_cluster ? 0 : 1
+  cluster_name = var.cluster_name
+}

variables.tf

@@ -72,3 +72,9 @@ variable "kms_key_id" {
   description = "For encrypting the EFS drive; defaults to the aws managed efs key"
   type        = string
 }
+
+variable "create_ecs_cluster" {
+  default     = true
+  type        = bool
+  description = "Toggles either creating the ECS Cluster or looking up an existing one"
+}