Terraform removed ブロックで for_each にてインデックスやキーが付与されているリソースを管理外にする回避策

terraform {
  required_version = "1.9.8"
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "5.75.0"
    }
  }
}

variable "vpcs" {
  type = map(string)
  default = {
    "vpc-sample-1" : "10.0.0.0/16"
    "vpc-sample-2" : "10.1.0.0/16"
  }
}

resource "aws_vpc" "sample" {
  for_each      = var.vpcs
  
  cidr_block       = each.value
  instance_tenancy = "default"
  tags = {
    Name = each.key
  }
}

removed {
  from = aws_vpc.sample["vpc-sample-1"]
  lifecycle {
    destroy = false # 実体は残すためのオプション
  }
}

│ Error: Resource instance keys not allowed
│ 
│   on 4_remove_block_with_for_each.tf line 20, in removed:
│   20:   from = aws_vpc.sample["vpc-sample-1"]
│ 
│ Resource address must be a resource (e.g. "test_instance.foo"), not a resource instance (e.g. "test_instance.foo[1]").

# 差分抜粋
### vpc-sample-1
+ # moved ブロックを記載して、インデックスやキーが無いアドレスへ移動させます。
+ moved {
+   from = aws_vpc.sample["vpc-sample-1"]
+   to   = aws_vpc.sample_vpc-sample-1
+ }
+ 
+ # removed ブロックでは上記で移動した先のアドレスを使用します。
removed {
-   from = aws_vpc.sample["vpc-sample-1"]
+   from = aws_vpc.sample_vpc-sample-1
  lifecycle {
    destroy = false # 実体は残すためのオプション
  }
}

# 全体
### vpc-sample-1
# moved ブロックを記載して、インデックスやキーが無いアドレスへ移動させます。
moved {
  from = aws_vpc.sample["vpc-sample-1"]
  to   = aws_vpc.sample_vpc-sample-1
}

# removed ブロックでは上記で移動した先のアドレスを使用します。
removed {
  from = aws_vpc.sample_vpc-sample-1
  lifecycle {
    destroy = false # 実体は残すためのオプション
  }
}

### vpc-sample-2
moved {
  from = aws_vpc.sample["vpc-sample-2"]
  to   = aws_vpc.sample_vpc-sample-2
}
removed {
  from = aws_vpc.sample_vpc-sample-2
  lifecycle {
    destroy = false 
  }
}

$ terraform apply

Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the following symbols:

Terraform will perform the following actions:

 # aws_vpc.sample_vpc-sample-1 will no longer be managed by Terraform, but will not be destroyed
 # (destroy = false is set in the configuration)
  # (moved from aws_vpc.sample["vpc-sample-1"])
 . resource "aws_vpc" "sample_vpc-sample-1" {
        id                                   = "vpc-0707284a01204b7d8"
        tags                                 = {
            "Name" = "vpc-sample-1"
        }
        # (19 unchanged attributes hidden)
    }

 # aws_vpc.sample_vpc-sample-2 will no longer be managed by Terraform, but will not be destroyed
 # (destroy = false is set in the configuration)
  # (moved from aws_vpc.sample["vpc-sample-2"])
 . resource "aws_vpc" "sample_vpc-sample-2" {
        id                                   = "vpc-04492ed99b35fb8b0"
        tags                                 = {
            "Name" = "vpc-sample-2"
        }
        # (19 unchanged attributes hidden)
    }

Plan: 0 to add, 0 to change, 0 to destroy.
╷
│ Warning: Some objects will no longer be managed by Terraform
│ 
│ If you apply this plan, Terraform will discard its tracking information for the following objects, but it will not delete them:
│  - aws_vpc.sample_vpc-sample-1
│  - aws_vpc.sample_vpc-sample-2
│ 
│ After applying this plan, Terraform will no longer manage these objects. You will need to import them into Terraform to manage them again.
╵

Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

  Enter a value: yes


Apply complete! Resources: 0 added, 0 changed, 0 destroyed.