In this chapter, you have learned some of the most important concepts about high availability and failover. You have also learned the different options available to build a redundant OpenStack architecture within a robust resiliency. You now know how to diagnose your OpenStack design by eliminating any SPOF across all services. We have highlighted different open source solutions out of the box to arm our OpenStack infrastructure and make it as fault tolerant as possible. Different technologies have been introduced, such as HAProxy database replication using Galera, Keepalived, Pacemaker, and Corosync. New advanced built-in HA mechanisms for networks were introduced within the latest releases of OpenStack (Juno and later). HA routers using VRRP and DVR are very promising solutions that tackle the issue of network failure in an OpenStack environment. This presents a great step forward to architect a high available...
Mastering OpenStack
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Mastering OpenStack
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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)
Preface
Free Chapter
Designing OpenStack Cloud Architectural Consideration
Deploying OpenStack - The DevOps Way
OpenStack Cluster – The Cloud Controller and Common Services
OpenStack Compute - Choice of Hypervisor and Node Segregation
OpenStack Storage - Block, Object, and File Share
OpenStack Networking - Choice of Connectivity Types and Networking Services
Advanced Networking - A Look at SDN and NFV
Operating the OpenStack Infrastructure - The User Perspective
OpenStack HA and Failover
Monitoring and Troubleshooting - Running a Healthy OpenStack Cluster
Keeping Track of Logs - ELK and OpenStack
OpenStack Benchmarking and Performance Tuning - Maintaining Cloud Performance
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