https://docs.aws.amazon.com/ja_jp/AmazonCloudWatch/latest/monitoring/US_AlarmAtThresholdELB.html
https://docs.aws.amazon.com/ja_jp/elasticloadbalancing/latest/application/tutorial-application-load-balancer-cli.html
-- 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
-- 2. EC2インスタンス作成
各アベイラビリティーゾーンで少なくとも 1 つの EC2 インスタンスを起動します
-- ap-northeast-1a
aws ec2 run-instances \
--image-id ami-0404778e217f54308 \
--instance-type t3.nano \
--key-name key1 \
--tag-specifications 'ResourceType=instance,Tags=[{Key=Name,Value=instance01}]' \
--instance-market-options '{"MarketType": "spot","SpotOptions": {"SpotInstanceType": "one-time"}}' \
--subnet-id subnet-11111111111111111
-- ap-northeast-1c
aws ec2 run-instances \
--image-id ami-0404778e217f54308 \
--instance-type t3.nano \
--key-name key1 \
--tag-specifications 'ResourceType=instance,Tags=[{Key=Name,Value=instance02}]' \
--instance-market-options '{"MarketType": "spot","SpotOptions": {"SpotInstanceType": "one-time"}}' \
--subnet-id subnet-22222222222222222
aws ec2 describe-instances
-- 3. Apacheインストール
Apacheウェブサーバーを各 EC2 インスタンスにインストール
sudo yum -y update
sudo yum -y install httpd
sudo systemctl start httpd
sudo systemctl status httpd
sudo systemctl enable httpd
sudo su -
cd /var/www/html
echo $(hostname) > index.html
sudo yum -y install elinks
elinks http://localhost/
-- 4. 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
-- 5. ターゲットグループの作成
aws elbv2 create-target-group \
--name target01 \
--protocol HTTP \
--port 80 \
--vpc-id vpc-44444444444444444 \
--ip-address-type ipv4 \
--target-type instance
aws elbv2 describe-target-groups
aws elbv2 describe-target-group-attributes \
--target-group-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:targetgroup/target01/5555555555555555
aws elbv2 register-targets \
--target-group-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:targetgroup/target01/5555555555555555 \
--targets Id=i-77777777777777777 Id=i-88888888888888888
aws elbv2 describe-target-health \
--target-group-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:targetgroup/target01/5555555555555555
-- 6. リスナーの作成
aws elbv2 create-listener \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/6666666666666666 \
--protocol HTTP \
--port 80 \
--default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:targetgroup/target01/5555555555555555
aws elbv2 describe-listeners \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/6666666666666666
-- 7. SNSトピック作成
aws sns list-topics
aws sns list-subscriptions
aws sns create-topic --name topic01
aws sns subscribe \
--topic-arn arn:aws:sns:ap-northeast-1:999999999999:topic01 \
--protocol email \
--notification-endpoint hoge@example.com
aws cloudwatch put-metric-alarm \
--alarm-name alarm01 \
--alarm-description "alarm01" \
--metric-name Latency \
--namespace AWS/ELB \
--statistic Average \
--period 60 \
--threshold 100 \
--comparison-operator GreaterThanThreshold \
--dimensions Name=LoadBalancerName,Value=alb01 \
--evaluation-periods 3 \
--alarm-actions "arn:aws:sns:ap-northeast-1:999999999999:topic01" \
--unit Seconds
aws cloudwatch describe-alarms
aws cloudwatch set-alarm-state \
--alarm-name alarm01 \
--state-reason "test" \
--state-value OK
aws cloudwatch set-alarm-state \
--alarm-name alarm01 \
--state-reason "test" \
--state-value ALARM
aws cloudwatch set-alarm-state \
--alarm-name alarm01 \
--state-reason "test" \
--state-value INSUFFICIENT_DATA
-- 10. クリーンアップ
-- アラームの削除
aws cloudwatch describe-alarms
aws cloudwatch delete-alarms \
--alarm-names alarm01
-- SNSトピック削除
aws sns unsubscribe --subscription-arn arn:aws:sns:ap-northeast-1:999999999999:topic01:11111111-2222-3333-4444-555555555555
aws sns delete-topic --topic-arn arn:aws:sns:ap-northeast-1:999999999999:topic01
aws sns list-topics
aws sns list-subscriptions
-- リスナーの削除
aws elbv2 describe-listeners \
--load-balancer-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:loadbalancer/app/alb01/6666666666666666
aws elbv2 delete-listener \
--listener-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:listener/app/alb01/6666666666666666/aaaaaaaaaaaaaaaa
-- ターゲットグループの削除
aws elbv2 describe-target-groups
aws elbv2 deregister-targets \
--target-group-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:targetgroup/target01/5555555555555555 \
--targets Id=i-77777777777777777 Id=i-88888888888888888
aws elbv2 delete-target-group \
--target-group-arn arn:aws:elasticloadbalancing:ap-northeast-1:999999999999:targetgroup/target01/5555555555555555
-- 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/alb01/6666666666666666
-- EC2インスタンスの削除
aws ec2 describe-instances
aws ec2 terminate-instances --instance-ids i-77777777777777777
aws ec2 terminate-instances --instance-ids i-88888888888888888
