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

Orchestration module concepts

The Orchestration module is responsible for orchestrating cloud resources. As discussed in the earlier chapters, Heat is the Orchestration module for OpenStack. It manages resource types dynamically in an OpenStack environment. These resource types are defined in a template file. The template can be either in the AWS CloudFormation format or in the OpenStack HOT format. The resource types managed by OpenStack Heat could be any of the following:

  • Compute instances

  • Disk volumes

  • Floating IP addresses

  • Security groups

  • Users

  • Additional physical memory (RAM)

A few additional features provided by OpenStack Heat are:

  • High availability

  • Autoscaling

  • Nested stacks

The following are the important components of Heat:




Heat client

The command-line client

This is a command-line interface that interacts with the Heat API and runs orchestration commands using the AWS CloudFormation API.



This is an OpenStack-native REST API that processes API...