Automating system management with Puppet
Puppet is the third automation framework that we will check out. It is the oldest one in our list, with its first release in 2005, and is commonly seen as the baseline against which other automation frameworks are compared. It has commercial backing through the Puppet company, also often referred to as Puppet Labs.
How Puppet works
Like SaltStack, Puppet uses an agent/server-based model with public-key authentication of the agents to ensure no rogue agents are active within the environment.
The Puppet master has access to the Puppet manifests, which is the declaration of the state that Puppet wants to achieve. These manifests use a specific language inspired by Ruby and can refer to classes provided by modules to ensure reusability across the environment.
Puppet modules, hence, are the workhorse within Puppet, and Puppet has a significant community called Puppet Forge that allows you to download and install modules created by the...