by

Honestly, i was not aware that terminating an instance at AWS is equal to unplugging the server cable. That’s why, i lost so much time trying to trigger a custom code before the instance shutdown using init levels. But i failed!!! Why, because when you unplug the electric cable, there is no init process!! 🙂

Later on, i found the AWS lifecycle hooks. Autoscale group triggers an SNS which them invokes a Lambda function and the basic requirement “revoking IP from Security Group” can be done. Here is the related node.js but still it is missing to parse the incoming SNS (The IP is static)

[snippet id=”26″]