Book Image

DevOps for Networking

By : Steven Armstrong
Book Image

DevOps for Networking

By: Steven Armstrong

Overview of this book

Frustrated that your company’s network changes are still a manual set of activities that slow developers down? It doesn’t need to be that way any longer, as this book will help your company and network teams embrace DevOps and continuous delivery approaches, enabling them to automate all network functions. This book aims to show readers network automation processes they could implement in their organizations. It will teach you the fundamentals of DevOps in networking and how to improve DevOps processes and workflows by providing automation in your network. You will be exposed to various networking strategies that are stopping your organization from scaling new projects quickly. You will see how SDN and APIs are influencing DevOps transformations, which will in turn help you improve the scalability and efficiency of your organizations networks operations. You will also find out how to leverage various configuration management tools such as Ansible, to automate your network. The book will also look at containers and the impact they are having on networking as well as looking at how automation impacts network security in a software-defined network.
Table of Contents (19 chapters)
DevOps for Networking
About the Author
About the Reviewer


In this chapter, we have looked at network security and ways in which security practices need to evolve to meet the demands of modern software-defined networks, as the industry has started to move away from flat layer 2 networks and instead utilize virtualized overlay networks.

This chapter has also hopefully debunked some of the fear and uncertainty associated with securing software-defined networks, while tackling hot topics such as the separation of test and production environments and the use of virtual firewalling for micro-segmentation as opposed to physical firewalls.

The focus of the chapter then shifted to strategies that can be adopted above and beyond minimum security requirements and looked at ways to secure SDN controllers and minimize the attack vectors. This can be achieved by isolating networks, creating out of band networks for network devices, appropriate authentication, and using TLS for inter-network device communication.

The chapter has also looked at the gains...