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  • Book Overview & Buying OpenStack Essentials
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OpenStack Essentials

OpenStack Essentials

By : Dan Radez
4.2 (14)
Buy this Book
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OpenStack Essentials

OpenStack Essentials

4.2 (14)
By: Dan Radez
Buy this Book

Overview of this book

If you need to get started with OpenStack or want to learn more, then this book is your perfect companion. If you're comfortable with the Linux command line, you'll gain confidence in using OpenStack.
Table of Contents (15 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Architecture and Component Overview
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1. Architecture and Component Overview
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OpenStack architecture
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Dashboard
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Keystone
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Glance
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Neutron
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Nova
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Cinder
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Swift
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Ceilometer
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Heat
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Summary
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2. RDO Installation
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2. RDO Installation
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Installing RDO using Packstack
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Summary
3
3. Identity Management
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3. Identity Management
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Services and endpoints
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Interacting with Keystone in the dashboard
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Endpoints in the dashboard
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Summary
4
4. Image Management
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4. Image Management
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Glance as a registry of images
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Using the web interface
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Building an image
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Summary
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5. Network Management
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5. Network Management
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Networking and Neutron
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Open vSwitch configuration
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Creating a network
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Web interface management
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External network access
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Web interface external network setup
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Summary
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6. Instance Management
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6. Instance Management
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Managing flavors
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Managing key pairs
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Launching an instance
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Managing floating IP addresses
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Managing security groups
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Communicating with the instance
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Launching an instance using the web interface
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Summary
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7. Block Storage
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7. Block Storage
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Use case
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Creating and using block storage
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Attaching the block storage to an instance
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Managing Cinder volumes in the web interface
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Backing storage
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Summary
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8. Object Storage
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8. Object Storage
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Use case
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Architecture of a Swift cluster
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Creating and using object storage
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Object file management in the web interface
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Using object storage on an instance
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Ring files
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Summary
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9. Telemetry
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9. Telemetry
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Understanding the data store
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Definitions of Ceilometer's configuration terms
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Graphing the data
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Summary
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10. Orchestration
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10. Orchestration
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About orchestration
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Writing templates
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Launching a stack
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Autoscaling instances with Heat
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LBaaS setup
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Web interface
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Summary
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11. Scaling Horizontally
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11. Scaling Horizontally
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Scaling compute nodes
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Installing more control and networking
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Scaling control and network services
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Load-balancing keystone
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Glance load balancing
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Scaling other services
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High availability
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Highly available database and message bus
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Summary
12
12. Monitoring
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12. Monitoring
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Monitoring defined
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Installing Nagios
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Monitoring methods
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Non-OpenStack service checks
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Monitoring control services
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Monitoring network services
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Monitoring compute services
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Summary
13
13. Troubleshooting
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13. Troubleshooting
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The debug command line option
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Tail the server logs
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Troubleshooting Keystone and authentication
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Troubleshooting Glance image management
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Troubleshooting Neutron networking
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Troubleshooting Nova launching instances
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Troubleshooting post-boot metadata
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Troubleshooting console access
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Troubleshooting Cinder block storage
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Troubleshooting Swift object storage
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Troubleshooting Ceilometer Telemetry
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Troubleshooting Heat orchestration
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Getting more help
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Summary
14
Index
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Index

Launching an instance

At this point, there has been what may seem like an excessive amount of groundwork laid to get to launching an instance. We now have a tenant for the instance to live in, an image using which it can run, a network for it to live in, and a key pair to authenticate with. These are all the necessary resources to create in order to launch an instance, and now that these resources have been created, they can be reused for future instances that will be launched. Without further delay, let's launch the first instance in this OpenStack environment as follows:

control# nova boot --flavor 2 --image Fedora --key-name openstack --nic net-id={network id} ""My First Instance""

This launches an instance using the small flavor, the key pair we just imported, the Fedora image from Chapter 4, Image Management, and the tenant network from Chapter 5, Network Management. This instance will go through a few different states before it's ready to use. You can see the current state of your...

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