I really hope that you enjoyed the introduction to the orchestration platforms. It's only a fast introduction to make you curious to learn more. All the websites of the orchestration tools mentioned in this chapter are great resources and a pleasure to read.
Some extra resources to mention:
- PowerShell DSC: The book, Pro PowerShell Desired State Configuration: An In-Depth Guide to Windows PowerShell DSC by Ravikanth Chaganti, published by Apress, and the videos of Prajeesh Prathap that are published at Packt Publishing are a must. The Hey, Scripting Guy! blog (https://blogs.technet.microsoft.com/heyscriptingguy) is always a very good place to start if you want tutorials about PowerShell and PowerShell DSC.
- Ansible: I do think that Learn Ansible by Russ McKendrick and other titles by the same author about Ansible deserve a lot of credit. If you are too lazy...