{ALB}固定レスポンス機能

https://dev.classmethod.jp/articles/alb-fixed-response/

-- 1. コマンド等のインストール

-- 1.1 aws cli version 2 インストール

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install

aws --version

-- 1.2 jqインストール
sudo yum -y install jq

 

-- 2. ロードバランサーの作成

aws elbv2 create-load-balancer \
--name alb01  \
--subnets subnet-11111111111111111  subnet-22222222222222222 \
--security-groups sg-33333333333333333

aws elbv2 describe-load-balancers
aws elbv2 describe-load-balancers| jq -r .LoadBalancers.LoadBalancerArn

 

-- 3. リスナーの作成

aws elbv2 create-listener \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/4444444444444444 \
--protocol HTTP \
--port 80  \
--default-actions '[
  {
      "Type": "fixed-response",
      "FixedResponseConfig": {
          "StatusCode": "200",
          "ContentType": "text/plain",
          "MessageBody": "Hello world"
      }
  }
]'

 

aws elbv2 describe-listeners \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/4444444444444444

aws elbv2 describe-listeners \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/4444444444444444 | jq -r .Listeners.ListenerArn

 

 

-- 4. 動作確認

http://alb01-6666666666.ap-northeast-1.elb.amazonaws.com

 

 

-- 5. クリーンアップ

 

-- リスナーの削除

aws elbv2 describe-listeners \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/4444444444444444

aws elbv2 delete-listener \
--listener-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:listener/app/alb01/4444444444444444/5555555555555555

 

-- ロードバランサーの削除

aws elbv2 describe-load-balancers

aws elbv2 delete-load-balancer \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/4444444444444444