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.
This book guides you through the building and maintenance of your cloud infrastructure, providing real-world examples, step-by-step configuration, and other critical information.
Chapter 1, OpenNebula, and Why it Matters?, introduces us to the Cloud, OpenNebula, and its underlying technologies.
Chapter 2, Building Up Your Cloud, provides an overview of the most typical hardware and software requirements, and how to start configuring the basic networking and OpenNebula frontend.
Chapter 3, Hypervisors, helps you understand how to install, configure, and optimize all the three hypervisors supported by OpenNebula: KVM, Xen, and VMWare ESXi.
Chapter 4, Choosing Your Storage Carefully, provides an overview of all the common storage solutions for our infrastructure with a focus on using distributed file systems.
Chapter 5, Being Operational—Everything Starts Here!, launches the first VM instance and a full dive into the OpenNebula resource management process.
Chapter 6, Web Management, simplifies OpenNebula management tasks and monitoring using Sunstone, the OpenNebula cloud operations center.
Chapter 7, Health and Monitoring, helps us to understand how to effectively monitor and manage host and VM failures for our infrastructure, build custom hooks, and integrate with Ganglia, a scalable distributed monitoring system.
Chapter 8, Hybrid Cloud Computing: Extending OpenNebula, helps you to understand how to integrate OpenNebula with Amazon EC2 and burst your capacity!
Chapter 9, Public Cloud Computing and High Availability with OpenNebula, exposes the standard EC2 and OCCI interfaces to the public and helps manage large OpenNebula deployments with the oZone component.
OpenNebula does not require any particular hardware or software configuration; you need to have at least a single server (or your laptop), with a recent GNU/Linux distribution installation of your choice. Personally, I prefer using Debian or Ubuntu.
This handy guide to Cloud computing with OpenNebula will be of great help to a GNU/Linux system administrator with no experience in Virtualization or Cloud computing, but eager to learn about it, or for a commercial Cloud administrator thwarted by their currently virtualized infrastructure. The reader should have some basic knowledge of GNU/Linux and system configuration, including the basics of package management tools for their preferred GNU/Linux distribution.
Basic Shell scripting and Ruby are required only if you want to hack the OpenNebula internals.
In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.
Code words in text are shown as follows: "You can check it by viewing the information contained in the /proc/cpuinfo file of your Linux box."
A block of code is set as follows:
VM_MAD = [ name = "vmm_kvm", executable = "one_vmm_exec", arguments = "-t 15 -r 0 kvm", default = "vmm_exec/vmm_exec_kvm.conf", type = "kvm" ]
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
SRC_PATH=`arg_path $SRC`
DST_PATH=`arg_path $DST`
fix_paths
Any command-line input or output is written as follows:
$ onequota show john -f uid num_vms memory cpu storage 1 0/8 0/0 0/0 0/0
New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "clicking the Next button moves you to the next screen".
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