Book Image

OpenNebula 3 Cloud Computing

Book Image

OpenNebula 3 Cloud Computing

Overview of this book

OpenNebula is one of the most advanced and highly-scalable open source cloud computing toolkits. If you ever wanted to understand what Cloud Computing is and how to realize it, or if you need a handy way to manage your messy infrastructure in a simple and coherent manner, this is your way. OpenNebula 3 Cloud Computing guides you along the building and maintenance of your cloud infrastructure, providing real-world examples, step-by-step configuration and other critical information. The book keeps you a step ahead in dealing with the demanding nature of cloud computing and virtual infrastructure management using one of the most advanced cloud computing toolkitsñ OpenNebula. The book takes you from a basic knowledge of OpenNebula to expert understanding of the most advanced features.The book starts with a basic planning of hardware resources and presents the unique benefits of the supported hypervisors; you will go in deep with day-to-day management of virtual instances, infrastructure monitoring and integration with Public Clouds like Amazon EC2.With this book you will be able to get started with fast and cheap configuration recipes, but also go deeper for a correct integration with your existing infrastructure.You will deal with well-know virtualization technologies like Xen and VMware, but also with the promising KVM technology integrated in the Linux kernel. After the basic infrastructure set-up, you will learn how to create and manage virtual instance via both command-line and web interfaces, and how to monitor your existing resources.At the end, the book acquaints you with integrating your local infrastructure with external Cloud resources but also publishing your resources to others via common API interfaces.
Table of Contents (17 chapters)
OpenNebula 3 Cloud Computing
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
1
OpenNebula and Why it Matters?
Index

A more complex template example


We see that defining a template suitable to run on EC2 is simple, and needs only the AMI name to start up correctly.

Here follows a complete list of all the available EC2 attributes:

  • AMI: The AMI name that will be launched.

  • KEYPAIR: The RSA key pair name that will be used to configure remote access to newly launched instances. The private key pair will be used later, to execute commands such as ssh -i id_keypair or scp -i id_keypair.

  • ELASTICIP: The elastic IP address you want to assign to the instance launched (we need to request one from the AWS console before using it).

  • AUTHORIZED_PORTS: This attribute is passed to the ec2-authorize command along with the parameter -p port, and can be a single number (for example: 22) or a range (for example: 22-1024).

  • INSTANCETYPE: The type of instance to be launched in EC2. As already said, the most used instance types are: t1.micro, m1.small, m1.large, m1.xlarge, c1.medium, and c1.xlarge.

An interesting feature is the possibility...