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

OpenStack node types

In the following table, we will describe the node types that constitute an OpenStack cloud:




The OpenStack controller node is used to perform the control operations in an OpenStack cloud environment. The main components running on a compute node are:

Identity service (Keystone)

Image service (Glance)

Management functions of compute (Nova)

Networking (Neutron)

Dashboard (Horizon)

It may also include the following optional OpenStack components:

Block storage

Object storage



Besides the preceding core required and optional packages, it also includes some helper packages or applications including:

Database (MySQL or other)

Network Time Protocol (NTP)


This is the node which runs the virtual machines in a hypervisor portion. OpenStack uses the KVM hypervisor by default. Besides the hypervisor portion, the compute node also runs the agents for networking services that provide connectivity to internal and external...