refactor(asg): accept protect_from_scale_in as a variable for the autoscaling group

Author: saumitra-dev

modules/asg/README.md

@@ -47,6 +47,7 @@ No modules.
 | <a name="input_max_size"></a> [max\_size](#input\_max\_size) | Max. size for the Autoscaling group | `number` | n/a | yes |
 | <a name="input_min_size"></a> [min\_size](#input\_min\_size) | Min. size for the Autoscaling group | `number` | n/a | yes |
 | <a name="input_name"></a> [name](#input\_name) | Name of the Autoscaling Group | `string` | n/a | yes |
+| <a name="input_protect_from_scale_in"></a> [protect\_from\_scale\_in](#input\_protect\_from\_scale\_in) | Whether to enable protection for Autoscaling group from scaling in instances | `bool` | `false` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | Resources Tags for Autoscaling group | `map(any)` | `{}` | no |
 | <a name="input_vpc_zone_identifier"></a> [vpc\_zone\_identifier](#input\_vpc\_zone\_identifier) | Identifiers of the VPC Subnets | `list(string)` | n/a | yes |
 

modules/asg/main.tf

@@ -6,9 +6,10 @@ resource "aws_autoscaling_group" "this" {
   name                = var.name
   vpc_zone_identifier = var.vpc_zone_identifier
 
-  desired_capacity = var.desired_capacity
-  min_size         = var.min_size
-  max_size         = var.max_size
+  desired_capacity      = var.desired_capacity
+  min_size              = var.min_size
+  max_size              = var.max_size
+  protect_from_scale_in = try(var.protect_from_scale_in, null)
 
   health_check_type = "EC2"
 

modules/asg/variables.tf

@@ -13,6 +13,12 @@ variable "vpc_zone_identifier" {
   }
 }
 
+variable "protect_from_scale_in" {
+  description = "Whether to enable protection for Autoscaling group from scaling in instances"
+  type        = bool
+  default     = false
+}
+
 variable "desired_capacity" {
   description = "Desired capacity for the Autoscaling group"
   type        = number