The foundation of most modern cloud deployments is some sort of virtualization technology, such as Kernel-based Virtual Machine (KVM). KVM has been part of the mainstream Linux kernel since version 2.6.20, released in February 2007, and since then has enjoyed wide system adoption.
Virtualization in general not only provides a way to fully utilize server resources, but also allows greater multitenancy, along with running various workloads on the same system.
The OpenStack cloud operating system uses KVM as its default compute driver, providing a centralized way of managing the lifecycle of virtual machines: from building, resizing, and migrating to pausing and terminating.
This book is about KVM and how to build and manage virtual ...