The AWS OpsWorks Cookbooks repository provides the built-in Chef cookbooks used by the now-deprecated AWS OpsWorks Stacks service, a configuration-management and application-deployment service that used Chef (and optionally Puppet) to manage fleets of EC2 instances. These cookbooks implemented standard tasks such as package installation, web server configuration, database setup, Ruby/PHP/Java application deployment, and integration with AWS stack lifecycle events (setup, configure, deploy...