If you’re running in an account that was created for you as part of an AWS event, there’s no need to go through the cleanup stage - the account will be closed automatically.
If you’re running in your own account, make sure you run through these steps to make sure you don’t encounter unwanted costs.
Delete all manually created resources.
aws autoscaling delete-auto-scaling-group --auto-scaling-group-name myEC2Workshop --force-delete aws elbv2 delete-load-balancer --load-balancer-arn $LoadBalancerArn aws ec2 delete-launch-template --launch-template-name myEC2Workshop
Delete the Target Group created (you need to wait until the Application Load Balancer has been completely deleted).
aws elbv2 delete-target-group --target-group-arn $TargetGroupArn
Finally, delete the CloudFormation stack itself.
aws cloudformation delete-stack --stack-name $stack_name
If you ran the optional Custom Spot Interruption handling exercise, make sure you remove the Spot Interruption handler CloudFormation template deployed by the Serverless Application Repository.
aws cloudformation delete-stack --stack-name serverlessrepo-ec2-spot-interruption-handler