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

Securing a software-defined network

So far in this chapter, we have focused on a set of minimal network security requirements to make sure that a software-defined network is secure.

But to maximize the security of a software-defined network, we should look at how overlay and underlay networks could potentially be exploited in new ways by attackers and look at different mechanisms that can be put in place to prevent this from happening.

Software-defined Networks are split into the overlay (which holds all the virtualized networks that houses virtual, physical machines, and containers) and the underlay (which holds all bare metal machines such as hypervisors, network devices, and SDN controllers).

Attacks at Overlay

Overlay networks are created to allow networks to be automated programmatically via APIs and increase the speed of change by simplifying the network in software.

Within the remit of Continuous Delivery, self-service ACL rules can be set up by developers to govern north to south and...