A team uses AWS CodeDeploy for deployments of a Java/Tomcat application with an Apache webserver. They have separate deployment groups for developer, staging, and production and want to change the Apache log level dynamically during deployment based on the deployment group without creating separate application revisions or multiple script versions. How can they achieve this with minimal management overhead?

The correct answer leverages the DEPLOYMENTGROUPNAME environment variable, which CodeDeploy automatically makes available during deployments. This allows a single script to dynamically adjust the Apache log level based on the current deployment group (developer, staging, or production) without needing separate application revisions or complex logic. Placing this script in the BeforeInstall lifecycle hook ensures the log level is configured before the application's new version is installed. The other options are less efficient or incorrect: Tagging EC2 instances and calling the EC2 API adds unnecessary complexity and overhead compared to using a readily available environment variable. CodeDeploy does not support custom environment variables in the way described. While DEPLOYMENTGROUPID is available, DEPLOYMENTGROUPNAME is more human-readable and directly maps to the desired configuration logic. The Install hook is typically for installing application files, not for pre-configuration like log levels.