aws_subnetをmapで作る

なぜ作った

前回作ったリストだとoutputで情報を受け取るとき不便だった。

コード

main.tf

module mo_subnet {
  source = "./modules/subnet"

  vpc_id = module.mo_vpc.id

  subnets = {
    namae1 = {
      name              = "namae"
      cidr_block        = "10.0.1.0/24"
      availability_zone = "ap-northeast-1a"
    }
    namae2 = {
      name              = "namae2"
      cidr_block        = "10.0.2.0/24"
      availability_zone = "ap-northeast-1c"
    }
  }
}

output subnetdata {
  value = module.mo_subnet.subnet.namae2.id
}

output subnetdataall {
  value = module.mo_subnet.subnet
}

./modules/subnet/main.tf

# ====================
#
# Subnet
#
# ====================



variable "vpc_id" {
  type = string
}

variable "subnets" {
  type = map
}

resource aws_subnet this {

  for_each = var.subnets

  vpc_id = var.vpc_id

  cidr_block        = each.value.cidr_block
  availability_zone = each.value.availability_zone

  tags = {
    Name = each.value.name
  }

}

output "subnet" {
  value = aws_subnet.this
}

参考

-https://www.hashicorp.com/blog/hashicorp-terraform-0-12-preview-for-and-for-each
- https://github.com/terraform-aws-modules/terraform-aws-vpc/blob/v1.0.0/main.tf