Add enable_monitoring flag in the module (#39)

Add the ability to enable/disable detailed monitoring. This defaults to `true` for backwards-compatibility.

.spacelift/config.yml

@@ -1,6 +1,5 @@
 version: 1
-module_version: 1.3.0
-
+module_version: 1.4.0
 tests:
   - name: AMD64-based workerpool
     project_root: examples/amd64

README.md

@@ -97,6 +97,7 @@ $ make docs
 | <a name="input_disable_container_credentials"></a> [disable\_container\_credentials](#input\_disable\_container\_credentials) | If true, the run container will not be able to access the instance profile<br>  credentials by talking to the EC2 metadata endpoint. This is done by setting<br>  the number of hops in IMDSv2 to 1. Since the Docker container goes through an<br>  extra NAT step, this still allows the launcher to talk to the endpoint, but<br>  prevents the container from doing so. | `bool` | `false` | no |
 | <a name="input_domain_name"></a> [domain\_name](#input\_domain\_name) | Top-level domain name to use for pulling the launcher binary | `string` | `"spacelift.io"` | no |
 | <a name="input_ec2_instance_type"></a> [ec2\_instance\_type](#input\_ec2\_instance\_type) | EC2 instance type for the workers. If an arm64-based AMI is used, this must be an arm64-based instance type. | `string` | `"t3.micro"` | no |
+| <a name="input_enable_monitoring"></a> [enable\_monitoring](#input\_enable\_monitoring) | Enables/disables detailed monitoring | `bool` | `true` | no |
 | <a name="input_enabled_metrics"></a> [enabled\_metrics](#input\_enabled\_metrics) | List of CloudWatch metrics enabled on the ASG | `list(string)` | <pre>[<br>  "GroupDesiredCapacity",<br>  "GroupInServiceInstances",<br>  "GroupMaxSize",<br>  "GroupMinSize",<br>  "GroupPendingInstances",<br>  "GroupStandbyInstances",<br>  "GroupTerminatingInstances",<br>  "GroupTotalInstances"<br>]</pre> | no |
 | <a name="input_iam_role_arn"></a> [iam\_role\_arn](#input\_iam\_role\_arn) | ARN of an existing IAM to use. Used `when create_iam_role` = `false` | `string` | `null` | no |
 | <a name="input_max_size"></a> [max\_size](#input\_max\_size) | Maximum number of workers to spin up | `number` | `10` | no |

asg.tf

@@ -83,6 +83,7 @@ module "asg" {
   image_id                 = var.ami_id != "" ? var.ami_id : data.aws_ami.this.id
   instance_type            = var.ec2_instance_type
   security_groups          = var.security_groups
+  enable_monitoring        = var.enable_monitoring
 
   block_device_mappings = [
     {

variables.tf

@@ -110,6 +110,12 @@ variable "worker_pool_id" {
   description = "ID of the the worker pool. It is used for the naming convention of the resources."
 }
 
+variable "enable_monitoring" {
+  description = "Enables/disables detailed monitoring"
+  type        = bool
+  default     = true
+}
+
 locals {
   namespace = "sp5ft-${var.worker_pool_id}"
 }