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OpenStack Cloud Computing Cookbook, Third Edition
OpenStack Cloud Computing Cookbook, Third Edition

OpenStack Cloud Computing Cookbook, Third Edition: Over 110 effective recipes to help you build and operate OpenStack cloud computing, storage, networking, and automation

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OpenStack Cloud Computing Cookbook, Third Edition

Chapter 2. Glance – OpenStack Image Service

In this chapter, we will cover the following recipes:

  • Installing OpenStack Image Service
  • Configuring OpenStack Image Service with OpenStack Identity Service
  • Configuring OpenStack Image Service with OpenStack Object Storage
  • Managing images with OpenStack Image Service
  • Registering a remotely stored image
  • Sharing images among tenants
  • Viewing shared images
  • Using image metadata
  • Migrating a VMware image
  • Creating an OpenStack image

Introduction

OpenStack Image Service, also known as Glance, is a service that allows you to register, discover, and retrieve virtual machine images for use in our OpenStack environment. Images made available through OpenStack Image Service can be stored in a variety of backend locations, from local filesystem storage to distributed filesystems, such as OpenStack Object Storage.

In this chapter we will be concentrating on the Controller host as shown below:

Introduction

Installing OpenStack Image Service

Installation of the latest OpenStack Image Service is simply achieved by using the packages provided from the Ubuntu Cloud Archive repositories, which have been packaged for our Ubuntu 14.04 LTS GNU/Linux installation.

Getting ready

To begin with, ensure you're logged in to our OpenStack Controller host where OpenStack Image Service will be installed.

To log in to our OpenStack Controller host that was created using Vagrant, issue the following command:

vagrant ssh controller

Ensure that our Ubuntu 14.04 LTS release is using the Ubuntu Cloud Archive that has the packages required for the Juno release. For more information, visit http://bit.ly/OpenStackCookbookCloudArchive.

Tip

All of the steps can be found at http://www.openstackcookbook.com/.

We will configure Glance to use MariaDB as the database backend, so this needs to be installed prior to installing Glance.

Tip

If MariaDB is not installed, visit http://bit.ly/OpenStackCookbookInstallMariaDB for instructions...

Configuring OpenStack Image Service with OpenStack Identity Service

Configuring OpenStack Image Service to use OpenStack Identity Service is required to allow our OpenStack Compute to operate correctly.

Getting ready

To begin with, ensure you're logged in to our OpenStack Controller host or the host that is running OpenStack Image Service. If the OpenStack Identity Service is not installed, carry out the steps in the Installing the OpenStack Identity Service recipe of Chapter 1, Keystone – OpenStack Identity Service. We also require that the Glance service user and endpoints have been set up. See the Defining Service Endpoints and Creating the service tenant and service users recipes of Chapter 1, Keystone – OpenStack Identity Service.

To log in to our OpenStack Controller host that was created using Vagrant, issue the following command:

vagrant ssh controller

How to do it...

To configure OpenStack Image Service to use OpenStack Identity Service, carry out the following steps...

Configuring OpenStack Image Service with OpenStack Object Storage

By default, images are stored as files in the /var/lib/glance/images/ directory. However, OpenStack Image Service can be configured to use OpenStack Object Storage (Swift) for storing images, as well as other backend storage such as Ceph and GlusterFS. In this recipe, we will go through the steps required to configure OpenStack Image service (Glance) to use Object Storage service (Swift).

Getting ready

To begin with, ensure you're logged in to our OpenStack Controller host or the host that is running OpenStack Image Service.

To log in to our OpenStack Controller host that was created using Vagrant, issue the following command:

vagrant ssh controller

How to do it...

To configure OpenStack Image Service to use OpenStack Object Storage, carry out the following steps:

  1. We first edit the /etc/glance/glance-api.conf file to notify Glance that we will use Swift instead of the default filesystem by editing the following line under...

Managing images with OpenStack Image Service

Uploading and managing images within OpenStack Storage is achieved using the glance command-line tool. This tool allows us to upload, remove, and change information about the stored images for use within our OpenStack environment.

Getting ready

To begin with, ensure that you are either logged in to an Ubuntu client where we can run the glance tool, or on our OpenStack Controller where OpenStack Image Service is running directly. If the Glance client isn't installed, this can be installed using the following commands:

sudo apt-get update
sudo apt-get install python-glanceclient

Ensure that you have your environment variables set up correctly with our admin user and password, as created in the previous chapter:

export OS_TENANT_NAME=cookbook
export OS_USERNAME=admin
export OS_PASSWORD=openstack
export OS_AUTH_URL=https://192.168.100.200:5000/v2.0/
export OS_NO_CACHE=1
export OS_KEY=/vagrant/cakey.pem
export OS_CACERT=/vagrant/ca.pem

How to do it...

Introduction


OpenStack Image Service, also known as Glance, is a service that allows you to register, discover, and retrieve virtual machine images for use in our OpenStack environment. Images made available through OpenStack Image Service can be stored in a variety of backend locations, from local filesystem storage to distributed filesystems, such as OpenStack Object Storage.

In this chapter we will be concentrating on the Controller host as shown below:

Installing OpenStack Image Service


Installation of the latest OpenStack Image Service is simply achieved by using the packages provided from the Ubuntu Cloud Archive repositories, which have been packaged for our Ubuntu 14.04 LTS GNU/Linux installation.

Getting ready

To begin with, ensure you're logged in to our OpenStack Controller host where OpenStack Image Service will be installed.

To log in to our OpenStack Controller host that was created using Vagrant, issue the following command:

vagrant ssh controller

Ensure that our Ubuntu 14.04 LTS release is using the Ubuntu Cloud Archive that has the packages required for the Juno release. For more information, visit http://bit.ly/OpenStackCookbookCloudArchive.

Tip

All of the steps can be found at http://www.openstackcookbook.com/.

We will configure Glance to use MariaDB as the database backend, so this needs to be installed prior to installing Glance.

Tip

If MariaDB is not installed, visit http://bit.ly/OpenStackCookbookInstallMariaDB for instructions...

Configuring OpenStack Image Service with OpenStack Identity Service


Configuring OpenStack Image Service to use OpenStack Identity Service is required to allow our OpenStack Compute to operate correctly.

Getting ready

To begin with, ensure you're logged in to our OpenStack Controller host or the host that is running OpenStack Image Service. If the OpenStack Identity Service is not installed, carry out the steps in the Installing the OpenStack Identity Service recipe of Chapter 1, Keystone – OpenStack Identity Service. We also require that the Glance service user and endpoints have been set up. See the Defining Service Endpoints and Creating the service tenant and service users recipes of Chapter 1, Keystone – OpenStack Identity Service.

To log in to our OpenStack Controller host that was created using Vagrant, issue the following command:

vagrant ssh controller

How to do it...

To configure OpenStack Image Service to use OpenStack Identity Service, carry out the following steps:

  1. We first edit the...

Configuring OpenStack Image Service with OpenStack Object Storage


By default, images are stored as files in the /var/lib/glance/images/ directory. However, OpenStack Image Service can be configured to use OpenStack Object Storage (Swift) for storing images, as well as other backend storage such as Ceph and GlusterFS. In this recipe, we will go through the steps required to configure OpenStack Image service (Glance) to use Object Storage service (Swift).

Getting ready

To begin with, ensure you're logged in to our OpenStack Controller host or the host that is running OpenStack Image Service.

To log in to our OpenStack Controller host that was created using Vagrant, issue the following command:

vagrant ssh controller

How to do it...

To configure OpenStack Image Service to use OpenStack Object Storage, carry out the following steps:

  1. We first edit the /etc/glance/glance-api.conf file to notify Glance that we will use Swift instead of the default filesystem by editing the following line under the ...

Managing images with OpenStack Image Service


Uploading and managing images within OpenStack Storage is achieved using the glance command-line tool. This tool allows us to upload, remove, and change information about the stored images for use within our OpenStack environment.

Getting ready

To begin with, ensure that you are either logged in to an Ubuntu client where we can run the glance tool, or on our OpenStack Controller where OpenStack Image Service is running directly. If the Glance client isn't installed, this can be installed using the following commands:

sudo apt-get update
sudo apt-get install python-glanceclient

Ensure that you have your environment variables set up correctly with our admin user and password, as created in the previous chapter:

export OS_TENANT_NAME=cookbook
export OS_USERNAME=admin
export OS_PASSWORD=openstack
export OS_AUTH_URL=https://192.168.100.200:5000/v2.0/
export OS_NO_CACHE=1
export OS_KEY=/vagrant/cakey.pem
export OS_CACERT=/vagrant/ca.pem

How to do it...

We...

Registering a remotely stored image


OpenStack Image Service provides a mechanism to remotely add an image that is stored at an externally accessible location. This allows for a convenient method of adding images we might want to on our private cloud that have been uploaded to an external third-party server.

Getting ready

To begin with, ensure you are logged in to our Ubuntu client where we can run the glance tool. This can be installed using the following command:

sudo apt-get update
sudo apt-get install python-glanceclient

Ensure that you have your environment variable set up correctly with our admin user and password, as created in the previous chapter:

export OS_TENANT_NAME=cookbook
export OS_USERNAME=admin
export OS_PASSWORD=openstack
export OS_AUTH_URL=https://192.168.100.200:5000/v2.0/
export OS_NO_CACHE=1
export OS_KEY=/vagrant/cakey.pem
export OS_CACERT=/vagrant/ca.pem

How to do it...

Carry out the following steps to remotely store an image in our OpenStack Image Service:

  1. To register a...

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Description

OpenStack Open Source software is one of the most used cloud infrastructures to support software development and big data analysis. It is developed by a thriving community of individual developers from around the globe and backed by most of the leading players in the cloud space today. It is simple to implement, massively scalable, and can store a large pool of data and networking resources. OpenStack has a strong ecosystem that helps you provision your cloud storage needs. Add OpenStack's enterprise features to reduce the cost of your business. This book will show you the steps to build up a private cloud environment. At the beginning, you'll discover the uses of cloud services such as the identity service, image service, and compute service. You'll dive into Neutron, the OpenStack Networking service, and get your hands dirty with configuring ML2, networks, routers, and Distributed Virtual Routers. You’ll then gather more expert knowledge on OpenStack cloud computing by managing your cloud's security and migration. After that, we delve in to OpenStack Object storage and how to manage servers and work with objects, cluster, and storage functionalities. Also, as you go deeper into the realm of OpenStack, you'll learn practical examples of Block storage, LBaaS, and FWaaS: installation and configuration covered ground up. Finally, you will learn OpenStack dashboard, Ansible and Foreman, Keystone, and other interesting topics.

What you will learn

  • Understand, install, configure, and manage Nova-the OpenStack Cloud Compute resource Configure ML2, networks, routers, and Distributed Virtual Routers with Neutron Use and secure Keystone, the OpenStack Authentication service Install and set up Swift and Container Replication between datacenters Gain hands-on experience and familiarity with Horizon, the OpenStack Dashboard user interface Automate complete solutions with our recipes on Heat, the OpenStack Orchestration service Use Ansible and Foreman to automate OpenStack installations successfully Follow practical advice and examples to run OpenStack in production

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Aug 19, 2015
Length: 436 pages
Edition : 1st
Language : English
ISBN-13 : 9781782174783
Vendor :
OpenStack
Tools :

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Product Details

Publication date : Aug 19, 2015
Length: 436 pages
Edition : 1st
Language : English
ISBN-13 : 9781782174783
Vendor :
OpenStack
Tools :

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Table of Contents

12 Chapters
1. Keystone – OpenStack Identity Service Chevron down icon Chevron up icon
2. Glance – OpenStack Image Service Chevron down icon Chevron up icon
3. Neutron – OpenStack Networking Chevron down icon Chevron up icon
4. Nova – OpenStack Compute Chevron down icon Chevron up icon
5. Swift – OpenStack Object Storage Chevron down icon Chevron up icon
6. Using OpenStack Object Storage Chevron down icon Chevron up icon
7. Administering OpenStack Object Storage Chevron down icon Chevron up icon
8. Cinder – OpenStack Block Storage Chevron down icon Chevron up icon
9. More OpenStack Chevron down icon Chevron up icon
10. Using the OpenStack Dashboard Chevron down icon Chevron up icon
11. Production OpenStack Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.4
(5 Ratings)
5 star 40%
4 star 20%
3 star 0%
2 star 20%
1 star 20%
Amazon Customer Nov 28, 2015
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Great book overall. These days I don't think that you should deploy OpenStack this way, even for dev support systems. However it is a great learning experience to do it manually and this book takes that approach, and you learn a lot along the way.
Amazon Verified review Amazon
M. Silvia Jun 08, 2016
Full star icon Full star icon Full star icon Full star icon Full star icon 5
A great overview and walkthrough of core components.
Amazon Verified review Amazon
Carles Mateo Aug 16, 2017
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
I was after something for OpenStack's Ocata deployment from the scratch, from the OpenStack's git repositories.It was surprised to see that It covers operating with OpenStack by using Ubuntu Cloud Edition and some vagrant images, (so not Ocata), but the recipes are good, and the book was interesting, so I give it 4 stars.I would like OpenStack books to clearly indicate which version they cover.
Amazon Verified review Amazon
codemanic Sep 01, 2017
Full star icon Full star icon Empty star icon Empty star icon Empty star icon 2
not worth the price
Amazon Verified review Amazon
Davide M. Mar 03, 2016
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
Inizialmente ero particolarmente soddisfatto per le novità pubblicate, dato che davano per compatibile anche le ultime versioni di OpenStack (Kilo). Ma in realtà non è così, ci sono una miriade di problemi di compatibilità ed è necessario perdere tantissimo tempo per configurare un ambiente corretto. Quasi inutile.
Amazon Verified review Amazon
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