Book Image

Mastering KVM Virtualization - Second Edition

By : Vedran Dakic, Humble Devassy Chirammal, Prasad Mukhedkar, Anil Vettathu
Book Image

Mastering KVM Virtualization - Second Edition

By: Vedran Dakic, Humble Devassy Chirammal, Prasad Mukhedkar, Anil Vettathu

Overview of this book

Kernel-based Virtual Machine (KVM) enables you to virtualize your data center by transforming your Linux operating system into a powerful hypervisor that allows you to manage multiple operating systems with minimal fuss. With this book, you'll gain insights into configuring, troubleshooting, and fixing bugs in KVM virtualization and related software. This second edition of Mastering KVM Virtualization is updated to cover the latest developments in the core KVM components - libvirt and QEMU. Starting with the basics of Linux virtualization, you'll explore VM lifecycle management and migration techniques. You’ll then learn how to use SPICE and VNC protocols while creating VMs and discover best practices for using snapshots. As you progress, you'll integrate third-party tools with Ansible for automation and orchestration. You’ll also learn to scale out and monitor your environments, and will cover oVirt, OpenStack, Eucalyptus, AWS, and ELK stack. Throughout the book, you’ll find out more about tools such as Cloud-Init and Cloudbase-Init. Finally, you'll be taken through the performance tuning and troubleshooting guidelines for KVM-based virtual machines and a hypervisor. By the end of this book, you'll be well-versed with KVM virtualization and the tools and technologies needed to build and manage diverse virtualization environments.
Table of Contents (22 chapters)
Section 1: KVM Virtualization Basics
Section 2: libvirt and ovirt for Virtual Machine Management
Section 3: Automation, Customization, and Orchestration for KVM VMs
Section 4: Scalability, Monitoring, Performance Tuning, and Troubleshooting

Creating Windows VMs using the virt-install utility

The first thing that we need to do is to make sure we have the virtio-win drivers ready for installation – the VM will not work properly without them installed. So, let's first install that and the libguestfs packages, in case you don't have them already installed on your server:

yum –y install virtio-win libguestfs*

Then, it's time to start deploying our VM. Here are our settings:

  • The Windows Server 2019 ISO is located at /iso/windows-server-2019.iso.
  • The virtio-win ISO file is located in the default system folder, /usr/share/virtio-win/virtio-win.iso.
  • We are going to create a 60 GB virtual disk, located at the default system folder, /var/lib/libvirt/images.

Now, let's start the installation process:

virt-install --name WS2019 --memory=4096 --vcpus 2 --cpu host --video qxl --features=hyperv_relaxed=on,hyperv_spinlocks=on,hyperv_vapic=on --clock hypervclock_present...