How can this task be automated?
Use Amazon Athena to query AWS CloudTrail logs to check for any associate-address attempts. Create an AWS Lambda function to disassociate the Elastic IP address from the instance, and alert the security team.
Attach an IAM policy to the developers’ IAM group to deny associate-address permissions. Create a custom AWS Config rule to check whether an Elastic IP address is associated with any instance tagged as production, and alert the security team.
Ensure that all IAM groups associated with developers do not have associate-address permissions. Create a scheduled AWS Lambda function to check whether an Elastic IP address is associated with any instance tagged as production, and alert the security team if an instance has an Elastic IP address associated with it.
Create an AWS Config rule to check that all production instances have EC2 IAM roles that include deny associate-address permissions. Verify whether there is an Elastic IP address associated with any instance, and alert the security team if an instance has an Elastic IP address associated with it.
Explanations:
Amazon Athena is used for querying logs, not for managing or enforcing permissions. The Lambda function can disassociate the Elastic IP, but it doesn’t address preventing the attachment in the first place.
An IAM policy to deny associate-address permissions to developers ensures they cannot attach Elastic IPs. The AWS Config rule can check for Elastic IPs attached to instances tagged as production and alert the security team.
While this option provides a solution for detecting and alerting when an Elastic IP is associated, it doesn’t prevent developers from attaching Elastic IPs, which is critical for enforcement.
EC2 IAM roles do not control associate-address permissions, and this solution doesn’t effectively prevent Elastic IP attachment. IAM permissions should be managed directly, not through EC2 IAM roles.