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 Glance with the Ceph backend

Glance can use the existing Ceph pools as a datastore to store virtual machine images. In this recipe, we will configure the Glance backend driver for the Ceph RADOS Block Device.

Getting ready

Before configuring Glance to use the Ceph RBD backend, we need to make sure that the Database, message broker, and Keystone are set for Glance, and both glance-api.conf and glance-registry.conf are configured correctly to use them. We also need to make sure that a Ceph volume with a corresponding pool for glance was created, and the ceph.conf and key.ring files were preconfigured.

The CephFS Python package is also required to use the Ceph RBD backend driver:

[root@controller ~]# yum install -y python-cephfs

How to do it...

Follow these steps to configure Glance with the Ceph storage backend:

  1. Using the openstack-config command, edit the glance-api configuration file, and under the default section, set default_store to rdb:

    [root@controller ~]# openstack-config ...