Update dependencies and README (#5)

Author: danbarr

README.md

@@ -1,20 +1,20 @@
 # Terraform module aws-ecs-tfc-agent
 
-This module creates a Terraform Cloud Agent pool in a TFC org, and deploys a task definition and service into an existing ECS Fargate cluster. It includes the required security group and IAM roles for a basic deployment. For all options, see variables.tf
+This module creates an HCP Terraform agent pool in a TFC org, and deploys a task definition and service into an existing ECS Fargate cluster. It includes the required security group and IAM roles for a basic deployment. For all options, see variables.tf
 
 Prerequisites:
 
 - An existing VPC with at least one public subnet
-- An existing ECS Fargate cluster
-- A Terraform Cloud organization with self-hosted agent support (Business tier), or a Terraform Enterprise instance
+- An existing ECS Fargate cluster and CloudWatch log group
+- An HCP Terraform organization or a Terraform Enterprise instance
 
 Hat tip to Andy Assareh for his [excellent examples](https://github.com/assareh/tfc-agent).
 
 Minimal example using the standard agent image (hashicorp/tfc-agent):
 
 ```terraform
 module "agent_standard" {
-  source  = "github.com/danbarr/terraform-aws-ecs-tfc-agent?ref=v0.3.0"
+  source  = "github.com/danbarr/terraform-aws-ecs-tfc-agent?ref=v1.0.0"
 
   name                      = "ecs"
   tfc_org_name              = "My-TFC-Org"
@@ -29,15 +29,19 @@ Example using a customized tfc-agent image hosted in ECR, plus my aws-ecs-fargat
 
 ```terraform
 module "agent_cluster" {
-  source             = "github.com/danbarr/terraform-aws-ecs-fargate-cluster?ref=v0.9.1"
-  cluster_name       = "tfc-agent-cluster"
+  source       = "github.com/danbarr/terraform-aws-ecs-fargate-cluster?ref=v1.0.1"
+  cluster_name = "terraform-agent-cluster"
+}
+
+resource "aws_cloudwatch_log_group" "example" {
+  name = "/ecs/tfc-agents-module-test"
 }
 
 module "agent_standard" {
-  source  = "github.com/danbarr/terraform-aws-ecs-tfc-agent?ref=v0.3.0"
+  source  = "github.com/danbarr/terraform-aws-ecs-tfc-agent?ref=v1.0.0"
 
   name                      = "ecs-custom"
-  tfc_org_name              = "My-TFC-Org"
+  tfc_org_name              = "My-Terraform-Org"
   agent_image               = "111111111111.dkr.ecr.us-east-1.amazonaws.com/tfc-custom-agent"
   ecs_cluster_arn           = module.agent_cluster.cluster_arn
   use_spot_instances        = true

example/basic-example.tf

@@ -4,12 +4,12 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = "~> 4.24"
+      version = "~> 5.0"
     }
 
     tfe = {
       source  = "hashicorp/tfe"
-      version = "~> 0.36"
+      version = "~> 0.56"
     }
   }
 }

main.tf

@@ -4,12 +4,12 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = "~> 4.24"
+      version = ">= 4.24"
     }
 
     tfe = {
       source  = "hashicorp/tfe"
-      version = "~> 0.36"
+      version = ">= 0.36"
     }
   }
 }
@@ -28,7 +28,7 @@ resource "tfe_agent_token" "ecs_agent_token" {
 
 resource "aws_ssm_parameter" "agent_token" {
   name        = "/tfc-agent-token/${var.tfc_org_name}/${var.name}"
-  description = "Terraform Cloud agent token"
+  description = "HCP Terraform agent token"
   type        = "SecureString"
   value       = tfe_agent_token.ecs_agent_token.token
 }

variables.tf

@@ -87,7 +87,7 @@ variable "num_agents" {
 
 variable "cloudwatch_log_group_name" {
   type        = string
-  description = "The name of the CloudWatch log group where agent logs will be sent."
+  description = "The name of the CloudWatch log group where agent logs will be sent. The log group must already exist."
 }
 
 variable "ecs_cluster_arn" {