This section will be all about a healthy Puppet installation. We'll primarily focus on the common issues that we see on agents, and what they may mean for your Puppet system. We'll tackle this for the times that we most commonly see errors: while writing, testing, and deploying code to our servers. We will be troubleshooting primarily from the perspective of the Puppet agent, so you will see the most common issues that team members encounter while working on a Puppet deployment.
All of the nodes in a Puppet infrastructure contain a Puppet agent. In a split installation, each component checks in with a Puppetserver, just like any other node managed in the infrastructure. In a monolithic installation, the Puppet agent checks in with itself. Every other node managed by Puppet must use the agent to retrieve a configuration. Because the agent is everywhere, understanding some of the common errors with the agent will be universally useful...