aws_subnet.tf
resource "aws_subnet" "environment_example_subnet" { vpc_id = aws_vpc.environment_example.id availability_zone = each.value.zone for_each = var.environment_example_subnets cidr_block = each.value.cidr map_public_ip_on_launch = each.value.launch tags = { Name = each.value.name Service = "environment_example" Description = "Managed by Terraform" } }variables.tf
variable "environment_example_subnets" { type = map default = { public-1a = { cidr = "172.20.0.0/19" zone = "ap-northeast-1a" launch = "true" name = "environment-example-public-a" } public-1c = { cidr = "172.20.32.0/19" zone = "ap-northeast-1c" launch = "true" name = "environment-example-public-c" } private-1a = { cidr = "172.20.64.0/19" zone = "ap-northeast-1a" launch = "false" name = "environment-example-private-a" } private-1c = { cidr = "172.20.128.0/19" zone = "ap-northeast-1c" launch = "false" name = "environment-example-private-c" } } }[Terraform]同一リソース内で複数作成する場合、countよりfor_eachを使う #Terraform - Qiita 2020