Book Image

OpenStack Orchestration

By : Adnan Ahmed Siddiqui
Book Image

OpenStack Orchestration

By: Adnan Ahmed Siddiqui

Overview of this book

This book is focused on setting up and using one of the most important services in OpenStack orchestration, Heat. First, the book introduces you to the orchestration service for OpenStack to help you understand the uses of the templating mechanism, complex control groups of cloud resources, and huge-potential and multiple-use cases. We then move on to the topology and orchestration specification for cloud applications and standards, before introducing the most popular IaaS cloud framework, Heat. You will get to grips with the standards used in Heat, overview and roadmap, architecture and CLI, heat API, heat engine, CloudWatch API, scaling principles, JeOS and installation and configuration of Heat. We wrap up by giving you some insights into troubleshooting for OpenStack. With easy-to-follow, step-by-step instructions and supporting images, you will be able to manage OpenStack operations by implementing the orchestration services of Heat.
Table of Contents (14 chapters)
OpenStack Orchestration
About the Author
About the Reviewers
Stack Group of Connected Cloud Resources


Heat (the Orchestration service for OpenStack) uses template files to orchestrate resources and services for OpenStack. These template files are in fact text files that are created by the administrators. These templates support version control mechanisms.

Resources in a template file can be anything, including server instances, floating IP addresses, disk volumes, security policies or groups, and cloud users.

Heat along with the telemetry component (called Ceilometer) offers an autoscaling feature which is helpful in dynamic resource allocation.

The relationship between resources can also be specified in a template. For example, a disk volume can be associated with a server instance.

The entire life cycle of an instance or an application on an instance can be managed by Heat. A stack can be modified to make any changes in the cloud infrastructure. Heat will implement the modifications into the cloud after reading the newly updated template.

Heat was designed for effective management of...