Implementing OpenShift

Adam Miller

• Publisher: Packt Publishing
• Year: 2013
• eBook ISBN: 9781782164722
• Edition: 1
• Topic: Computer Science
• Subtopic: Desktop Applications
• Index: Computer Science

In Detail

Gone are the days of having to provision hardware, deploy, and manage an entire environment just to write code for the next big idea, project, or custom web application. A Platform-as-a-Service cloud aims to fulfill this need, allowing developers to work more efficiently as well as allowing DevOps teams to spend less time fulfilling requests for these environments. Join us as we move into the future with OpenShift.

Implementing OpenShift will walk the reader through how to easily develop and deploy upon an open source OpenShift Platform-as-a-Service. We will then discuss the architecture of the platform so that users have some insight into the inner workings of the environment. We will then take a step away from the user aspect and cover DevOps topics so that we can perform the deployment of our very own open source Platform-as-a-Service using the upstream OpenShift Origin code base.

Developers are no longer in need of provisioning full-scale development environments by provisioning servers, installing and configuring software, and maintaining infrastructure just to write software. This book will show you how developers can move out of this archaic mindset and into the future utilizing OpenShift Platform-as-a-Service technologies, breaking away from the marketing jargon and into the technology that allows developers to get work done. This book also delves into the realm of DevOps, allowing you to run your own environment to support your development teams more efficiently.

This book will show you how the OpenShift Platform-as-a-Service can redefine the way web application developers work by providing the building blocks upon which they are able to create their next big idea. From there, the reader will progress through the OpenShift architecture and on to a brisk automated deployment using DevOps technologies.

You will learn everything you need to know in order to use OpenShift to develop and deploy applications in the cloud as well as how to deploy your very own OpenShift Origin-based Platform-as-a-Service cloud.

Approach

A standard tutorial-based approach to using OpenShift and deploying custom or pre-built web applications to the OpenShift Online cloud.

Who this book is for

This book is for software developers and DevOps alike who are interested in learning how to use the OpenShift Platform-as-a-Service for developing and deploying applications, how the environment works on the back end, and how to deploy their very own open source Platform-as-a-Service based on the upstream OpenShift Origin project.

Implementing OpenShift

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Table of Contents

Implementing OpenShift

Credits

About the Author

Acknowledgments

About the Reviewers

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Why Subscribe?

Free Access for Packt account holders

Preface

What this book covers?

What you need for this book

Who the book is for?

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Understanding the Essentials

The Cloud

Infrastructure as a Service (IaaS)

Platform as a Service (PaaS)

Software as a Service (SaaS)

SSH

Git

OpenShift – a bird's-eye view

Client tools

Broker

Node

Summary

2. Using OpenShift

Getting started using OpenShift

Command-line utilities

Web Console

IDE Integrations

Summary

3. OpenShift – Technologies and Working

Pluggable Authentication Modules for Linux

SELinux

CGroups

Software Collections

MCollective

Applications and Gears

The OpenShift architecture overview

The REST API

Summary

4. Deploying an OpenShift PaaS

The Fedora Project

Ansible

Deployment

Summary

Index

Implementing OpenShift

Copyright © 2013 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: October 2013

Production Reference: 1171013

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78216-472-2

www.packtpub.com

Cover image by Aashish Variava (<[email protected]>)

Credits

Author

Adam Miller

Reviewers

André Dietisheim

Daniel Kinon

Acquisition Editor

Vinay Argekar

Commissioning Editor

Harsha Bharwani

Technical Editors

Novina Kewalramani

Anita Nayak

Copy Editors

Dipti Kapadia

Gladson Monteiro

Sayanee Mukherjee

Kirti Pai

Project Coordinator

Romal Karani

Proofreader

Joanna McMahon

Indexer

Mehreen Deshmukh

Priya Subramani

Graphics

Yuvraj Mannari

Abhinash Sahu

Production Coordinator

Kirtee Shingan

Cover Work

Kirtee Shingan

About the Author

Adam Miller is currently employed at Red Hat Inc. as the Release Engineer for OpenShift Online, Red Hat's auto-scaling Platform-as-a-Service (PaaS) for applications. Adam has completed Bachelor's of Science in Computer Science and Master's of Science in Information Assurance and Security, both from the Sam Houston State University. He is a Red Hat Certified Engineer (Cert# 110-008-810), and is an active member of the open source community with a running history of contributions to the Fedora Project (FAS account name: maxamillion).

Acknowledgments

First, I would like to thank my family—my mother Kim, father John, stepfather Jim, stepmother Veronica, stepsister Elizabeth, mother-in-law Kathy, father-in-law Kevin and my grandparents, Bill and Mary-Jo—for their support in my writing of this book and in everything I pursue. I would also like to thank the entire OpenShift Team at Red Hat. They are the ones who've made OpenShift a reality and therefore made this book a possibility. In particular, I'd like to thank those in the team who have been invaluable mentors to me: Mike McGrath, Thomas Wiest, and Dan McPherson. I want to thank a dear friend of mine, Kyle Derr, who has been a technical mentor over the years and has helped me substantially reach a place that has made this book a possibility. I would like to thank the community members of #rhel on irc.freenode.net for the sanity checking and the technical guidance that they have provided over the years. I would also like to thank Rob Marti for hiring and mentoring me while I was at Sam Houston State University, this was largely a catalyst for what I didn't know at the time would become the career I could only have hoped for. I would like to thank Thomas Cameron for being a mentor, a motivator, and someone who provided guidance to my endeavors that ultimately lead me to writing this book. Finally, I want to thank my wife Amanda, the love of my life and primary source of inspiration in everything I do, technical or otherwise. Without her support, this book and many other wonderful occurrences in my life surely would not have happened.

About the Reviewers

André Dietisheim was quite passionate about coding Assembly Language on Commodore Amiga as a teenager. This fervor made him contribute later to the Java open source community in general and the Eclipse platform in particular.

Today, he works on JBoss Tools, the Eclipse-based tooling that Red Hat Inc. provides. He has also worked with Red Hat Inc. and his current task is to create Eclipse tooling and a Java client for OpenShift.

Daniel Kinon has been in the IT industry for 14 years and working with computers for much longer. Coming up through the ranks of Systems Administration, Daniel's passion has always been focused on automation to meet the ever-growing demands that software puts on infrastructure. Having experienced first hand the difficulties inherent in implementing PaaS, the release of OpenShift was a welcomed addition to Daniel's IT tool belt and proved extremely useful during his time working for Red Hat Inc. as a Sr. Technical Account Manager. Today, Daniel is continuing to explore the relationship between software demands and infrastructure scalability as the DevOps Architect for MarketLive Inc., the leading provider of omni-channel eCommerce technology and services. When he's not at the office or tinkering with Linux, Danielis a husband, father, electronics hobbyist, and home brewer.

I've never seen proof of anyone succeeding on their own; I've always been baffled by those who would want to. I'd like to thank my family and mentors for always believing in me, and helping me to shape and hone my ideas and opinions, making me who I am today. And a special thank you to my wife and daughter for their support, inspiration, and smiles.

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Table of contents

• Implementing OpenShift