Puppet

Puppet is an open source configuration management and automation tool that allows you to define the desired state of your infrastructure and automatically enforce that state. Puppet uses a declarative language to describe system configuration, allowing you to define what you want the system to look like without having to worry about the implementation details.

With Puppet, you can define resources like packages, files, and services that should exist on a system. These resources are defined in Puppet manifests using the Puppet domain-specific language. Puppet agents then connect to a Puppet master and receive a catalog of resources that should be present on the agent node. The agent compares this catalog to the current state of the system and makes any changes necessary to match the desired state, enabling automation and consistency across infrastructure. Some common use cases for Puppet include installing packages, managing configuration files, starting services, creating user accounts, and deploying applications. Overall, Puppet provides a powerful way to automate and standardize your infrastructure management.