Summary

In this chapter, we examined a few troubleshooting techniques that are useful in the enterprise. Troubleshooting basic network and system connectivity is the first thing to be checked. Using Puppet's rest API, we were able to talk directly to the master with the help of HTTP tools such as wget and gnutls-cli. We learned how to read the catalog and use jq to search the catalog on the client. Finally, we showed a method of enabling the expensive debugging feature for specific nodes by creating a debugging worker and directing nodes to that specific worker.

In this book, we took advantage of Puppet's rest API to scale out our Puppet infrastructure in order to accommodate a large number of nodes. Working in the enterprise, the division of code from data is important to allow modules to be reused and to reduce complexity. A large number of nodes will introduce its own set of complexities. Working to reduce the complexity in your environment will allow you to grow and adapt quickly.