Book Image

Mastering OpenStack - Second Edition

By : Omar Khedher, Chandan Dutta
Book Image

Mastering OpenStack - Second Edition

By: Omar Khedher, Chandan Dutta

Overview of this book

In this second edition, you will get to grips with the latest features of OpenStack. Starting with an overview of the OpenStack architecture, you'll see how to adopt the DevOps style of automation while deploying and operating in an OpenStack environment. We'll show you how to create your own OpenStack private cloud. Then you'll learn about various hypervisors and container technology supported by OpenStack. You'll get an understanding about the segregation of compute nodes based on reliability and availability needs. We'll cover various storage types in OpenStack and advanced networking aspects such as SDN and NFV. Next, you'll understand the OpenStack infrastructure from a cloud user point of view. Moving on, you'll develop troubleshooting skills, and get a comprehensive understanding of services such as high availability and failover in OpenStack. Finally, you will gain experience of running a centralized logging server and monitoring OpenStack services. The book will show you how to carry out performance tuning based on OpenStack service logs. You will be able to master OpenStack benchmarking and performance tuning. By the end of the book, you'll be ready to take steps to deploy and manage an OpenStack cloud with the latest open source technologies.
Table of Contents (13 chapters)

Architecture of OVN

The OVN is an implementation based on SDN architecture. As the SDN architecture evolved, it became apparent that the centralized controller could be a bottleneck when deployed in large networks with hundreds of switches. The architecture of OVN removes this drawback by using multiple OVS databases and controllers to provide a programmable virtual networking solution:

In this section, we will learn about the OVN components and their integration with OpenStack.

Components of OVN

The core of the OVN solution is the OpenVSwitch that implements programmable flow rules using OpenFlow. Unlike other SDN solutions that are based on a centralized controller and the virtual switches connecting to it, the OVN project uses multiple levels of controllers....