In Chapter 6, Instance Management, we used Nova to launch instances in OpenStack. This example walked through launching a single instance or, if the instance count was increased, multiple instances with the same configuration. What if a collection of instances needed to be launched that required each of them to have a different configuration or they all needed to know about each other as part of their post-boot configuration? For example, maybe a different Glance image is needed for each instance or a different flavor is needed for the different roles within this collection of instances. It's even a possible requirement to control the order in which the instances are spawned to make sure that they are available in a specific order for post-boot configuration purposes. Enter orchestration. With OpenStack's orchestration component, Heat, all of these requirements and more can be met with Heat's capabilities.
OpenStack Essentials
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OpenStack Essentials
By:
Overview of this book
Table of Contents (20 chapters)
OpenStack Essentials
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Architecture and Component Overview
RDO Installation
Identity Management
Image Management
Network Management
Instance Management
Block Storage
Object Storage
Telemetry
Orchestration
Scaling Horizontally
Monitoring
Troubleshooting
Index
Customer Reviews