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- Herausgeber: Packt Publishing
- Sprache: Englisch
Demystify application development on cloud platform by leveraging the power of IBM Bluemix
About This Book
- The first book in the market that discusses the power of IBM Bluemix
- Shows developers how to develop and deploy applications on the cloud platform using IBM Bluemix
- A comprehensive guide to help you get started with IBM Bluemix also featuring samples applications
Who This Book Is For
This book is aimed at developers seeking to learn application development and deployment methods on IBM Bluemix. A basic knowledge of Java and Node.js is assumed.
What You Will Learn
- Discover IBM Bluemix as a PaaS platform and learn about its three delivery models
- Develop and deploy a "Hello World" application on IBM Bluemix using the Cloud Foundry command line utility and the Bluemix console
- Extend your application by using the API or services provided by IBM Bluemix
- Understand microservices architecture and learn how to develop a sample application based on microservices architecture, using IBM Bluemix
- Learn how to leverage on-premise software and build an application on IBM Bluemix
- Scale and monitor an application on IBM Bluemix
- Explore the compute options on IBM Bluemix and work with each of them
- Build a mobile client application using Mobile services on IBM Bluemix
In Detail
IBM Bluemix is an open standard platform for building, running, and managing applications on the cloud. With Bluemix, developers can build innovative applications using various compute options and value added services , developers can also manage the application lifecycle using the platform provided DevOps services.
Learning IBM Bluemix will take you on a journey from the basics of IBM Bluemix to working with the platform to developing and deploying of modern applications. The sample application use cases employed in the book will introduce you to the transformative nexus of cloud, mobile, and security, all enabled through capabilities provided out-of-the-box by IBM Bluemix.
By the end of the book, you will have understood the benefits and use cases for IBM Bluemix, and will possess the skills to further explore the platform and thus develop, deploy, and secure your own innovative, new-age applications.
Style and approach
This comprehensive, step-by-step guide to learning IBM Bluemix will cover everything that is required to build, deploy, manage, and secure an application on the cloud.
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Seitenzahl: 208
Veröffentlichungsjahr: 2016
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Table of Contents
Learning IBM Bluemix
Learning IBM Bluemix
Copyright © 2016 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 2016
Production reference: 1171016
Published by Packt Publishing Ltd.
Livery Place
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Birmingham B3 2PB, UK.
ISBN 978-1-78588-774-1
www.packtpub.com
Credits
Authors
Sreelatha Sankaranarayanan
Copy Editor
Safis Editing
Reviewers
Mohan P Annamalai
Project Coordinator
Izzat Contractor
Commissioning Editor
Pratik Shah
Proofreader
Safis Editing
Acquisition Editor
Nitin Dasan
Indexer
Tejal Daruwale Soni
Content Development Editor
Priyanka Mehta
Production Coordinator
Shraddha Falebhai
Technical Editors
Dhiraj Chandanshive
Cover Work
Shraddha Falebhai
About the Author
Sreelatha Sankaranarayanan has close to 16 years of experience in software engineering. She has been with Phoenix Global Solutions (now Tata Consultancy Services) for close to 2.5 years. She is currently with IBM India and has been with them for the last 13.5 years. During her career, she has been part of product development, support, and test teams, primarily working on enterprise middleware products. In her most recent role, she was responsible for evangelizing IBM's cloud platform as-a-service, Bluemix, and has worked with System Integrators, academia, and IBM partners to enable and support them with the adoption of IBM's cloud platform as-a-service, Bluemix. She has coauthored a redbook entitled B2B Solutions using WebSphere Partner Gateway v6.0, authored some developerWorks articles, and some blog posts on the Mobile Enterprise Application Platform (MEAP), Internet of Things (IoT), and cloud platform as-a-service (Bluemix). You can find her on Twitter at @sreelathas and on LinkedIn at https://in.linkedin.com/in/sreelathas.
I thank Packt Publishing and Nitin Dasan for providing me with the opportunity and support to author this book. Special mention to the editorial reviewer, Priyanka Mehta, and the technical reviewer, Mohan P Annamalai (IBM), who have worked to refine each of the chapters in this book. We hope that you enjoy and learn as much as we, as author and reviewers, have enjoyed and learned putting this book together.
About the Reviewer
Mohan P Annamalai is a senior manager at IBM India Private Ltd, with 16 years of experience in the IT industry. He is currently responsible for driving the development efforts for Mobile Foundation Service on Bluemix. Prior to this, he successfully managed the efforts for setting up the IBM Push Notifications service on Bluemix. He was also responsible for driving IBM Bluemix eco system from India Software Labs in the year 2014. In this role, he worked with key IBM system integrators to gain interest on Bluemix. In his role as the IBM Bluemix program manager, he played a pivotal role in gaining mind share for IBM Bluemix among the developers and students in India. Apart from mobile and cloud, Mohan led the delivery of the analytics service component to power analytics in couple of key IBM solutions. He has also worked for Satyam Computer Services Limited. He started his career as a J2EE developer in connectivity and integration products and became a development manager in the same space.
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Preface
Cloud computing is an important transformative force defining the technology landscape today. Cloud computing has changed the way technology can be built and used for business, industry, governance, academia, and the like. Cloud technology is also considered as a key enabler to building innovations that define newer markets. Given the importance and relevance of this space, it is but natural to consider talking about one such cloud platform called Bluemix, which is a platform as-a-service (PaaS) offering from IBM.
This book is an attempt to compile illustrative descriptions for the different capabilities offered by Bluemix. The intended audience for this book is developers who are relatively new to the space of application development on a platform as-a-service environment. This book also serves to jumpstart developers who want to learn and use IBM Bluemix.
This book gives you the levers to understand Bluemix as a platform, learn how to use the value-added services on Bluemix, understand how to build, manage, and monitor applications on Bluemix, discover the options of deployment on Bluemix, and above all, witness the ease and the innovative approach to discover and cater to different types of use cases solving problems in varied categories.
This book is written in a simple, appealing, explanatory format with sufficient visual aids in the form of screenshots so that it is easy to follow even for those of you who are not very technical. As the author of this book, I am certain that you will experience a learning that you can build upon later; you will find that this provides an apt landing platform from where you are equipped to take the plunge.
What this book covers
Chapter 1, Saying Hello to IBM Bluemix, covers cloud computing and cloud service delivery models, and then lets us take a look at what Bluemix is. It also covers the different ways in which the platform is offered, along with an introduction to the IBM Bluemix public offering.
Chapter 2, Building and Deploying Your First Hello World Application on Bluemix, introduces you to application building on IBM Bluemix. You will learn how to build a simple application on Bluemix and deploy and run it.
Chapter 3, Extending an Application and Configuring for Continuous Delivery Using DevOps Services, teaches you how to extend existing applications on Bluemix to build additional functionality using some of the value-added services on Bluemix; this is illustrated along with a sample application.
Chapter 4, Leveraging On-Premise Software for Applications on Bluemix, demonstrates a very important aspect of modern application building environment, called hybrid cloud. We will see how on-premise or local software or applications can be leveraged to integrate with newer applications that are to be deployed on public cloud infrastructure.
Chapter 5, Scaling Applications in Bluemix, introduces you to application scaling. You will learn about the scaling options supported on Bluemix: manual and auto-scaling.
Chapter 6, Monitoring and Management in Bluemix, discusses the different services that can be used to monitor and manage applications. You will learn to work with the Monitoring and Analytics service for a web application deployed on Bluemix. Additionally, the chapter introduces readers to NewRelic, which is a third-party service on Bluemix.
Chapter 7, Compute Options on Bluemix, covers the different compute options available on Bluemix, such as containers, Cloud Foundry applications, virtual servers, and Open Whisk.
Chapter 8, Security Services on Bluemix, talks about the security services available on Bluemix and elaborates two of the available security services in Bluemix. You will learn how to offload the web application authentication functionality to the Single Sign On service on Bluemix.
Chapter 9, Microservices-based Application Development on Bluemix, talks about an architecture pattern for application development on the cloud, called the Microservices architecture pattern. You will also learn how to use Bluemix and services on Bluemix to build and deploy applications that employ the microservices architecture.
Chapter 10, Mobile Application Development on Bluemix, introduces you to services offered on Bluemix that are specifically for mobile application development. You will learn how to use some of these services to build a simple mobile catalog application.
What you need for this book
Here's what you require for this book:
Who this book is for
This book is aimed at developers seeking to learn application development and deployment methods on IBM Bluemix. A basic knowledge of Java and Node.js is assumed.
Conventions
In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning. Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "You will notice that the deployable artifact for your application is the webApp.war file."
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@Override protected void init(VaadinRequest vaadinRequest) { Responsive.makeResponsive(this); setLocale(vaadinRequest.getLocale()); getPage().setTitle("MyVaadinApp"); showMainView(); }New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Enter your LinkedIn credentials and click Allow access."
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Chapter 1. Saying Hello to IBM Bluemix
Ready to rock with IBM Bluemix? Not yet? Don't fret; we are here to take you through your exciting journey to embrace the whole new paradigm of application development on cloud.
Before we take the plunge, let us equip ourselves with an understanding of some of the concepts that are at the periphery but that are essential to build your know-how of IBM Bluemix.
Heard of cloud computing? No? Well, we highly recommend you have a basic understanding of what cloud computing is at this point, before we can move forward. If we were to define it in simple terms, cloud computing is the method of creating a pool of resources (compute, storage, and network) and offering it through a simple portal that allows users to request the resources they want and get them provisioned in minutes, all this at a cost that is charged against the actual usage metrics of the resources or on a period-based consumption model.
Did you get it? No? Let us simplify it further.
Think of resources as compute, storage, and networking.
Now think of these resources being pooled and shared in a data center by what we call cloud service provider or CSP.
As a user, you will need a certain compute, storage, and networking capacity to host your application. In a non-traditional cloud world, you would go to the URL of the CSP, which will take you to the self-service portal of his service. Through this portal, you will be able to look at the available resources offered by the CSP, look at the costs at which each of them is offered, and will also be able to request a combination of resources based on your requirements. This custom compute capacity will be provisioned to you inside your tenancy or account with the CSP cloud offering. You will then be able to access and work with your resources through public Internet calls. This is a typical scenario of using cloud computing on a public cloud. By public cloud, what is meant is that the resources are shared and accessible by anyone on the public Internet, once they have a tenancy or account established within the cloud offering. Tenancy will assure resource isolation between tenants. Public cloud platforms are a popular way to explain the concept of cloud computing; however, there are private and hybrid flavors of cloud computing that CSPs provide. We shall discuss this further along in this chapter.
In this chapter, we will be looking at the following topics:
Understanding cloud service delivery models
Having understood the cloud computing model, let us graduate ourselves to the next level, where we will get an understanding of the three different service delivery models in cloud, which is to say in simple words, what can I get from a CSP?
To understand the cloud service delivery models, we need to focus on what we need from a cloud platform and what is provided to us by a cloud service provider; together, they define the as-a-service paradigm of the cloud or the cloud service delivery model.
What do we mean by as-a-service? As-a-service is a new business model, where the consumer does not have to buy a product or solution in its entirety for lifetime use. In the as-a-service model, a consumer buys the rights to use a product or solution for a defined period, in its entirety; the period can be renewed or continued based on the consumer's requirement. There is no lock-in or upfront huge investments needed in the as-a-service model. Applied to IT, this as-a-service model is cost viable for most small to mid-size organizations and start-ups. This has allowed for exploitation of software solutions to bring in business transformation through rapidly developed ubiquitous and innovative applications.
Let us take a look at what the cloud service delivery models are. In the broad category, we have three cloud service delivery models; there have been other specific categories as well, but to discuss all service delivery models is outside the scope of this book. The three cloud service delivery models are as follows:
The following figure shows a pictorial definition of each of the as-a-service models. IT within an enterprise consists of the nine broad layers of infrastructure components, such as networking, storage, servers and virtualization, and middleware; application infrastructure components such as operating system, and runtime; and a software stack of applications and data:
Cloud service delivery models
In a traditional on-premise environment, all the layers are procured, managed, and maintained by the consumer, who is typically an enterprise. If the consumer opts to not invest in infrastructure and instead leverage infrastructure provided as a service by a cloud service provider, then the consumer is operating in an infrastructure as-a-service model; the stack above the infrastructure components are still procured, managed, and maintained by him. This model is useful when there is a need for elasticity in infrastructure to support ever-changing business demands. This model absolves the consumer of being locked down by huge investments in infrastructure if he has to support a shrinkage in his needs. On the other hand, it also helps the consumer expand his IT in response to the increase in business need.
