Book Image

OpenStack Essentials - Second Edition

By : Dan Radez
Book Image

OpenStack Essentials - Second Edition

By: Dan Radez

Overview of this book

OpenStack is a widely popular platform for cloud computing. Applications that are built for this platform are resilient to failure and convenient to scale. This book, an update to our extremely popular OpenStack Essentials (published in May 2015) will help you master not only the essential bits, but will also examine the new features of the latest OpenStack release - Mitaka; showcasing how to put them to work straight away. This book begins with the installation and demonstration of the architecture. This book will tech you the core 8 topics of OpenStack. They are Keystone for Identity Management, Glance for Image management, Neutron for network management, Nova for instance management, Cinder for Block storage, Swift for Object storage, Ceilometer for Telemetry and Heat for Orchestration. Further more you will learn about launching and configuring Docker containers and also about scaling them horizontally. You will also learn about monitoring and Troubleshooting OpenStack.
Table of Contents (20 chapters)
OpenStack Essentials Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

The OpenStack debug command-line option


Most of the OpenStack command-line commands support passing --debug before a subcommand. For example, with hypervisor or server lists, it could look like this:

$ openstack --debug hypervisor list
$ openstack --debug server list

Note that --debug is put before the subcommand being executed. Using the debug option like this is helpful because it will show curl commands for each of the API calls that are being made from the command-line client to the API endpoints. Hosts and ports are included in this, so if your command-line client has trouble connecting to the endpoint, you can use the debug option to get more detail. If you need to see what information is being sent from or returned to the command line, the debug option will show those details.