Which tool is similar to Facter and collects system information such as the operating system and network?

Ohai is a tool designed to collect system information, making it similar to Facter. It is part of the Chef ecosystem and is particularly used to gather data about the system on which it runs. Ohai can discover various details, such as the operating system type, network interfaces, installed packages, and more, providing a comprehensive overview of the system's state.

This capability is essential for configuration management and automation, as it allows other tools like Chef Infra Client to make informed decisions based on the current state of the system they're managing. In scenarios where system data is required for resource provisioning or management, Ohai's functionalities become crucial.

The other tools listed serve different purposes. Chef Supermarket is a repository for community cookbooks for Chef but does not collect system information. The Chef Infra Client executes the configuration management scripts but relies on Ohai to gather system data first. Cisco NSO is a network services orchestration tool and does not focus on the same kind of system information collection as Facter or Ohai.