What does each device have with Chef?

Each device managed by Chef is equipped with a Chef Infra Client. This client acts as the primary interface between the Chef server and the individual nodes (devices). Its primary function is to pull configuration data from the Chef server and apply those configurations to ensure that the system state matches the defined policies. The Chef Infra Client runs at regular intervals or can be manually triggered, updating the node's state and applying any necessary changes.

The Chef Infra Client contains the logic needed to execute Chef recipes, which are scripts that define how to configure a system. It also checks in with the Chef server to receive updates and report its status, ensuring that the devices are consistently aligned with the desired configurations specified in the Chef configuration management system. This relationship is key in managing infrastructure as code, allowing for automated and consistent deployment and configuration of systems across an environment.