refactor(asg): make launch_template optional

Author: saumitra-dev

modules/asg/README.md

@@ -42,7 +42,7 @@ No modules.
 | <a name="input_iam_role_name"></a> [iam\_role\_name](#input\_iam\_role\_name) | Name for the IAM Role | `string` | `null` | no |
 | <a name="input_iam_role_tags"></a> [iam\_role\_tags](#input\_iam\_role\_tags) | Resource Tags for IAM Role | `map(any)` | `{}` | no |
 | <a name="input_instances_tags"></a> [instances\_tags](#input\_instances\_tags) | Resources Tags to propagate to the Instances | `map(any)` | `{}` | no |
-| <a name="input_launch_template"></a> [launch\_template](#input\_launch\_template) | Launch Template to use with the Autoscaling group | <pre>object({<br>    name                   = optional(string, "")<br>    image_id               = optional(string, "")<br>    instance_type          = optional(string, "")<br>    vpc_security_group_ids = optional(list(string), [])<br>    key_name               = optional(string, "")<br>    user_data              = optional(string, "")<br>    tags                   = optional(map(any), {})<br>  })</pre> | n/a | yes |
+| <a name="input_launch_template"></a> [launch\_template](#input\_launch\_template) | Launch Template to use with the Autoscaling group | <pre>object({<br>    name                   = optional(string, "")<br>    image_id               = optional(string, "")<br>    instance_type          = optional(string, "")<br>    vpc_security_group_ids = optional(list(string), [])<br>    key_name               = optional(string, "")<br>    user_data              = optional(string, "")<br>    tags                   = optional(map(any), {})<br>  })</pre> | `{}` | no |
 | <a name="input_launch_template_id"></a> [launch\_template\_id](#input\_launch\_template\_id) | Identifier of the Launch Template | `string` | `null` | no |
 | <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 |

modules/asg/variables.tf

@@ -76,6 +76,7 @@ variable "launch_template" {
     user_data              = optional(string, "")
     tags                   = optional(map(any), {})
   })
+  default = {}
 }
 
 variable "create_launch_template" {