Book Image

Production Ready OpenStack - Recipes for Successful Environments

By : Arthur Berezin
Book Image

Production Ready OpenStack - Recipes for Successful Environments

By: Arthur Berezin

Overview of this book

OpenStack is the most popular open source cloud platform used by organizations building internal private clouds and by public cloud providers. OpenStack is designed in a fully distributed architecture to provide Infrastructure as a Service, allowing us to maintain a massively scalable cloud infrastructure. OpenStack is developed by a vibrant community of open source developers who come from the largest software companies in the world. The book provides a comprehensive and practical guide to the multiple uses cases and configurations that OpenStack supports. This book simplifies the learning process by guiding you through how to install OpenStack in a single controller configuration. The book goes deeper into deploying OpenStack in a highly available configuration. You'll then configure Keystone Identity Services using LDAP, Active Directory, or the MySQL identity provider and configure a caching layer and SSL. After that, you will configure storage back-end providers for Glance and Cinder, which will include Ceph, NFS, Swift, and local storage. Then you will configure the Neutron networking service with provider network VLANs, and tenant network VXLAN and GRE. Also, you will configure Nova's Hypervisor with KVM, and QEMU emulation, and you will configure Nova's scheduler filters and weights. Finally, you will configure Horizon to use Apache HTTPD and SSL, and you will customize the dashboard's appearance.
Table of Contents (16 chapters)
Production Ready OpenStack - Recipes for Successful Environments
About the Author
About the Reviewers

Configuring Nova-compute with KVM Hypervisor

Kernel-based virtual machine (KVM) is the most common and robust open source virtualization Hypervisor, and it is most commonly used with OpenStack. In this recipe, we will configure the Nova-compute service to use the KVM Hypervisor driver, which invokes libvirt service commands to control KVM virtual machines on the host running the Nova-compute service.

Getting ready

Before configuring Nova-compute to use KVM, make sure that hardware-assisted virtualization is enabled, and a virtualization flag is present at /proc/cpuinfo. Check whether amd-v or intel-vt is supported:

[root@compute1 ~]# grep -E 'svm|vmx' /proc/cpuinfo

If the preceding command returns 0, make sure that virtualization is enabled at BIOS.

How to do it…

After verifying that KVM is supported, follow these steps to configure Nova-compute with the KVM hypervisor driver:

  1. Install the kvm and libvirt packages:

    [root@compute1 ~]# yum install qemu-kvm libvirt libvirt-python libguestfs-tools...