Terraform ASG tags conversion

concat_tags.tf

/*
I recently wrote a Terraform module to create an ECS Capacity Provider, ASG, Launch Template, etc.
    
ASG tags are a `set(map(string)))`, unlike most other resources which are simply a `map(string)`.
    
The `local` below converts `map(string)` tags into `set(map(string)))` tags.
  
*/

```hcl
locals {
    concat_tags = [
        for k, v in var.tags : { "key" : k, "value" : v, "propagate_at_launch" : true }
      ]
}

resource "aws_autoscaling_group" "asg" {
   ...
   
   tags = concat(
     [
        {...}
     ],
     local.concat_tags
   )
}
```