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AWS 使い捨て Linux

Last updated at Posted at 2021-09-30

ちょこっと EC2 を作って使い捨てしたい時のメモ。

SSH key pair の作成

鍵を作る

export AWS_PROFILE=exampleprofile
aws ec2 create-key-pair --key-name trash --query 'KeyMaterial' --output text > trash.pem
chmod 400 trash.pem

CloudFormation ファイルを作る

trash.yaml という名前のファイルを作る。

AWSTemplateFormatVersion: "2010-09-09"
Resources:
  Trash:
    Type: AWS::EC2::Instance
    Properties:
      InstanceType: t3.micro # インスタンスの種類
      ImageId: ami-02892a4ea9bfa2192 # Amazon Linux 2 64-bit x86
      KeyName: trash
      SecurityGroups:
      - Ref: TrashSecurityGroup
      UserData: # 最初からパッケージを更新しておく
        Fn::Base64: !Sub |
          #!/bin/bash -xe
          yum update -y
          
  TrashSecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: Redmine security
      SecurityGroupIngress:
      - CidrIp: 0.0.0.0/0 # ご自宅の IP。自宅からしか見えないように。
        FromPort: '22' # SSH のために開けるポート
        ToPort: '22'
        IpProtocol: tcp
        
Outputs:
  PublicIP: # 作った IP アドレスを表示
    Value: !GetAtt Trash.PublicIp

CloudFormation で EC2 を作る

aws cloudformation create-stack --stack-name trash --template-body file://trash.yaml

様子見

aws cloudformation describe-stack-events --stack-name trash | jq '.StackEvents[] | .EventId'

終わるまで待つ

aws cloudformation wait stack-create-complete --stack-name trash

しばらく待って出来上がった IP を確認

aws cloudformation describe-stacks --stack-name trash | jq -r '.Stacks[].Outputs[].OutputValue'

返ってきた IP の ec2-user ユーザにログインする。

ssh -i trash.pem ec2-user@13.114.8.76

削除

aws cloudformation delete-stack --stack-name trash
aws ec2 delete-key-pair --key-name trash
rm trash.pem

おまけ Node のインストール

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh | bash
. ~/.nvm/nvm.sh
nvm install 12.13.1
nvm use 12.13.1

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