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 filters

Nova scheduler supports the configuring filters for individual host aggregates, and each host aggregate is configured with filters that are applied only when instances are to be scheduled within that host aggregate.

The host aggregate filters are enabled in the /etc/nova/nova.conf configuration file, the specific settings can be done for each host aggregate, and settings are set as metadata assigned to the host aggregate. When a filter is not set or the metadata value is not found for the host aggregate, the filter falls back to the default global value set in nova.conf.

How to do it…

Proceed with the following steps to configure Nova host aggregates filters:


AggregateCoreFilter limits the scheduling of virtual machine instances on hosts that have sufficient CPU core available. AggregateCoreFilter allows the configuration of a fixed amount of vCPU overcommitment for each host aggregate, by setting the aggregate with the metadata key...