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 host aggregates

In some cases, OpenStack users require their virtual machine instances to run with a specific underlying hardware or hypervisor characteristics, for example, to guarantee certain behavior like disk or CPU performance. Nova the grouping of hypervisor hosts with specific characteristics into hypervisor host aggregates. Nova host aggregates are nova-compute nodes grouped by a certain characteristics they share; flavors can be restricted to be launched on host aggregates featuring matched characteristics.

Nova host aggregates allow to partition compute hypervisors into logical groups, for example, the partitioning of hosts by common infrastructure, such as shared storage devices, hosts sharing a similar CPU, trusted compute hardware, or other types of hardware. This is preferred mostly to ensure consistent performance when launching instances of certain flavors. Another common use of host aggregates is categorizing hosts by class of service, such as Gold and Silver...