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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
5
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
8
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
9
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
10
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
11
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
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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

Highly available database and message bus

The database and the message bus are not necessarily OpenStack services, but they are services that OpenStack depends on and that you want to be sure are highly available too. One option to make the database highly available is to add it to Pacemaker with a shared storage device. If the database were to fail on a node, then Pacemaker would move the shared storage to another node and start the database on a different node. There are also active/passive and active/active replication scenarios that can be configured for the database. Active/passive means that there is more than one instance of the database running, but only one of them is used as the active writable instance. The other instance(s) are there as passive backups and only become active if the current active instance needs to failover for some reason. Active/active means that there is more than one active writable instance of the database. These are running on different nodes and each can...

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