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terraform init で AWS VPC をインポートしてTerraform管理下に置く

Posted at

AWSでVPCを作成しておく

tf ファイルを定義

中身は空で良いので定義しておく

vpc.tf

resource "aws_vpc" "example" {
}

VPC ID を確認

image

import する

terraform import aws_vpc.example vpc-0e4bdfa5f98f4136a

これでVPCをTerafform管理下に置けるわけだが、別に今の状態からtfファイルを作成してくれるわけではないようだ

生成されたStateファイルの例

{
  "version": 4,
  "terraform_version": "1.3.7",
  "serial": 1,
  "lineage": "2f0d4879-1b5c-f056-fc90-0789baa23c7a",
  "outputs": {},
  "resources": [
    {
      "mode": "managed",
      "type": "aws_vpc",
      "name": "example",
      "provider": "provider[\"registry.terraform.io/hashicorp/aws\"]",
      "instances": [
        {
          "schema_version": 1,
          "attributes": {
            "arn": "arn:aws:ec2:ap-northeast-1:842696858454:vpc/vpc-0e4bdfa5f98f4136a",
            "assign_generated_ipv6_cidr_block": false,
            "cidr_block": "10.0.0.0/16",
            "default_network_acl_id": "acl-0bb942c98f06a1128",
            "default_route_table_id": "rtb-0ed5c6d1d0739abcb",
            "default_security_group_id": "sg-09189d0b06f959c26",
            "dhcp_options_id": "dopt-896f56ee",
            "enable_classiclink": false,
            "enable_classiclink_dns_support": false,
            "enable_dns_hostnames": true,
            "enable_dns_support": true,
            "enable_network_address_usage_metrics": false,
            "id": "vpc-0e4bdfa5f98f4136a",
            "instance_tenancy": "default",
            "ipv4_ipam_pool_id": null,
            "ipv4_netmask_length": null,
            "ipv6_association_id": "",
            "ipv6_cidr_block": "",
            "ipv6_cidr_block_network_border_group": "",
            "ipv6_ipam_pool_id": "",
            "ipv6_netmask_length": 0,
            "main_route_table_id": "rtb-0ed5c6d1d0739abcb",
            "owner_id": "842696858454",
            "tags": {
              "Name": "eex"
            },
            "tags_all": {
              "Name": "eex"
            }
          },
          "sensitive_attributes": [],
          "private": "eyJzY2hlbWFfdmVyc2lvbiI6IjEifQ=="
        }
      ]
    }
  ],
  "check_results": null
}

Apply

VPCに新しい名前をつけて terraform apply するとAWS上でもVPC名が変わるのが分かる

resource "aws_vpc" "example" {
  tags = {
    Name = "exexex"
  }
}
image

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