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Cloud Development and Deployment with CloudBees
Cloud Development and Deployment with CloudBees

Cloud Development and Deployment with CloudBees: Develop and deploy your Java application onto the cloud using CloudBees

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Cloud Development and Deployment with CloudBees

Chapter 2. Getting Started Quickly

To avail all services, you need to set up a CloudBees account. This process requires some registration steps and an initial setup before you are ready to do something productive. This chapter demonstrates how the CloudBees platform has been designed to lower this barrier and bring you to active application development as soon as possible.

To create an account, www.cloudbees.com provides a SIGN UP link. Registration is a simple process as the base services are free, so you only have to provide a valid e-mail address and some personal information.

A user on a CloudBees platform is identified by their e-mail address. Once you sign in, you create a user and domain to host your resources. This domain is sometimes called account in documentation, but is not tied to the user, because the user can access multiple domains, and a domain can be shared between a set of users with distinct roles. When you select a domain/account name, note that it will be used in all...

Subscribing to services


The GrandCentral services menu lets you manage your subscriptions. You can add new services to your domain or change the subscription plan. For this quick setup guide, we will subscribe to the DEV@cloud and RUN@cloud services. The former covers the forge repositories and a Jenkins instance to manage your project build, deployment, and continuous integration, and the latter hosts our applications.

Provisioning these services, especially getting Jenkins up and running, can take few minutes, so let's explore the GrandCentral UI in the meantime.

Keys and authorizations


As part of user settings (a small gear icon at the top right of the window), an API key and a secret key have been generated for you as a CloudBees user. You will need them to use the SDK. We will discuss this in Chapter 7, Tools.

User settings also allow you to register your SSH public keys. We will use these keys to access Git repositories hosted on the CloudBees forge later in this chapter. If you don't have one, don't know what it is, and don't want to spend time on this, never mind; just jump to the next section and use HTTPS.

If you don't have an SSH key yet, you can generate one using ssh-keygen on Linux and Mac OS X or by using PuTTY on Windows. Be careful, CloudBees requires a key in OpenSSH format, so export your keys in an appropriate format. While using PuTTY on Windows, you need to use the export menu, as shown in the following screenshot:

Generating a SSH key pair using PuTTY

Save the generated private key (by navigating to Conversions | Export in PuTTY...

Accessing services


After subscribing to few services, if you let your mouse pointer hover over the Services menu without clicking on it, a pop up will show you all active services with links to access them. You'll use these links to navigate through the CloudBees services. The format for these URLs is https://grandcentral.cloudbees.com/services/goto/<service>, as GrandCentral will act as an SSO service to integrate both CloudBees and third-party services for a smooth user experience.

Let's check whether Jenkins is ready to handle our project by accessing the Jenkins link at https://grandcentral.cloudbees.com/services/goto/dev-at-cloud. The Jenkins instance is configured but has no job defined, so let's create a project now.

Hey, we already are in the middle of this QuickStart section, so it's time to accelerate and get some actual application running, don't you think so? We could spend some time here explaining how to create a code repository, set up a Jenkins job, and deploy our application...

Setting up an application using ClickStart


On the GrandCentral welcome page, you probably noticed the big black ClickStart button.

This option gives you a list of available wizards to create typical applications based on a set of popular frameworks. From the list of available ClickStart options, you will notice that CloudBees is not just Java-specific, but we will discuss this further in later chapters.

So let's choose a classic Tomcat 7 ClickStart option for this guide as shown in the following screenshot:

ClickStart to get application set up in few clicks

ClickStart asks you for the application name and handles all the resource initializations to prepare a development pipeline for the requested framework. This means the following:

  • Git repository, hosted on CloudBees forge, with initial code source is committed

  • Jenkins build to compile, test, and package the application

  • Jenkins deployer is configured to deploy the resulting artifact on RUN@cloud up on build success

  • The RUN@cloud application...

Getting the code


Let's now edit the generated ClickStart application to customize it according to our needs. The first thing to do is to get the source code to amend it with our own stuff.

We assume you have a Git client installed on your computer or use an appropriate IDE integration.

Note

ClickStart always uses Git for repositories. The CloudBees forge also supports subversion, and maybe you prefer another SCM, such as Mercurial. There is no enforcement to use Git, and you can switch to your favorite SCM just by changing the Jenkins job SCM configuration. CloudBees just doesn't provide this option in ClickStart. If you don't want to use Git, you'll need to export the skeleton project and commit code into your own repository.

The ClickStart wizard gives us the forge repository URL. Pick it up and use it to clone your project. To use SSH, you need to have a key generated and registered on the CloudBees user settings page as discussed earlier. If you don't have one, you can use HTTPS with your...

Making changes and updating the application


Let's edit the application sources and add our own stuff to customize it to our needs. On a basic Tomcat web application, customization is not the adequate term as the code skeleton doesn't provide much, and we have to configure our favorite web framework and utility classes; but at least, we have a base project structure to get started quickly. If you're familiar with Maven archetype , this is mostly comparable at this stage.

After making some changes to our app, let's commit and push it to CloudBees:

git.add
git commit -m "I made some changes"
git push origin master

Note

If you are not familiar with a distributed SCM such as Git, you just need to know that sending changes to a CloudBees-hosted repository is a two-step process:

  • Commit the repository to group file changes into an atomic commit object

  • Push it to send pending local commits to the remote repository

Now, let's have a look at our DEV@cloudJenkins instance. You'll notice that the build queue...

PaaS versus self-managed infrastructure


Something you probably noticed during the introduction to the CloudBees platform is that you never interacted with a human to get resources provisioned or tools setup. Everything is automated and managed by APIs, therefore, full-platform automation, such as ClickStart, is possible.

Creating new resources on demand, like we did by creating an application and database on RUN@cloud, is possible—thanks to Cloud elasticity—and relies on the mostly unlimited resources that IaaS has to offer.

As compared to self-managed infrastructure built on an IaaS, the main benefit of a PaaS is the time you save by not handling low-level stuff. Your engineering team probably could set up a Tomcat server on an EC2 instance as well as a Git server on a Jenkins instance. They even can have this scripted some way, so this can be quickly set up.

But this is only the emerged part of the PaaS iceberg, and does not even considering the time spent to set up such an infrastructure...

Summary


This chapter demonstrated how simple it is to set up a project on the CloudBees platform. Using ClickStart is recommended to get started, even if you have existing code, as it will prepare a complete and working pipeline that you just have to adapt to your own project.

Left arrow icon Right arrow icon

Key benefits

  • Create, deploy, and develop applications using CloudBees
  • Impress your colleagues and become a pro by using different tools to integrate CloudBees with SDK
  • A step-by-step tutorial guide which will help you explore and maintain real-world applications with CloudBees

Description

CloudBees offers a Platform as a Service (PaaS) to build, run, manage web applications, and support the entire application lifecycle right from development to deployment.The development and deployment of web- and mobile-based Java applications are the basic services that CloudBees has to offer. With these services you can efficiently build and enhance applications, and connect them to existing networks and systems. Cloud Development and Deployment with CloudBees introduces you to the concept of Platform as a Service. It talks about the services in detail that developers can leverage in order to build, manage, and deploy their applications with ease onto the cloud. You will learn the intricacies of the CloudBees ecosystem and how it can be extended to match your specific requirements. Cloud Development and Deployment with CloudBees will get you started with the concepts of PaaS and why it is considered better than other forms of services. You will then learn to create and manage your account, understand the CloudBees ecosystem, and subscribe to the wide array of services available. After this, you will use the clickStart feature that will enable you to set up, run, and host your application on the cloud. You will also venture out into the development phase by understanding Jenkins and how it would help you to build, maintain, and integrate your project build. You will then learn how to use the RUN@CLOUD platform to host your application, and you will also delve into cloud concepts, and understand the architectural constraints and how to monitor the application. Finally, you will deep dive into the extensive capabilities of using clickStack to create or customize your own stack.

Who is this book for?

If you are a Java developer and want to explore the world of the cloud, this book is ideal for you. This book will guide you through the process of developing and deploying an application on the cloud. Prior knowledge of Java is essential.

What you will learn

  • Understand the basic concepts of Paas and its advantage over other cloud services
  • Create a CloudBees account and subscribe to its services
  • Use clickstart to set up, run, and host your application on the cloud
  • Learn how to manage users, and access keys and services
  • Develop your application with Jenkins and install plug-ins
  • Integrate the CloudBees platform with the SDK using various development tools
  • Get deeper in the RUN platform with ClickStack and learn how to select an alternate stack, or customize or create your own
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Publication date : Dec 24, 2013
Length: 114 pages
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Language : English
ISBN-13 : 9781783281633
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Table of Contents

8 Chapters
What's a PaaS and Why CloudBees? Chevron down icon Chevron up icon
Getting Started Quickly Chevron down icon Chevron up icon
Users, Domains, and Services Chevron down icon Chevron up icon
ClickStart in Depth Chevron down icon Chevron up icon
Managing Your Build Chevron down icon Chevron up icon
Running Your Applications Chevron down icon Chevron up icon
Tools Chevron down icon Chevron up icon
Using ClickStack to Extend the Platform Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
(3 Ratings)
5 star 33.3%
4 star 33.3%
3 star 33.3%
2 star 0%
1 star 0%
JamesR Mar 23, 2014
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book is a very useful guide for any technologist wishing to enter the world of cloud computing with CloudBees. It can also be an interesting opportunity for non-IT people to explore a new domain. The chapters are organized very well, and their content is clear and comprehensible. There are many examples and walk-through tutorials. I find it hard to identify anything the book lacks; it appears to cover all the bases business and IT people need -- now -- to take action and start reaping the major costs savings offered by cloud computing. We will undoubtedly see updated editions as changes occur in this field.
Amazon Verified review Amazon
NazHus Mar 23, 2014
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Nice short book takes you though Cloudbees infrastructure, it explains the basics of PAAS and how to develop and manage applications.
Amazon Verified review Amazon
Mikel Viera Apr 03, 2014
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Easy-to-follow, comprehensive guide to leverage ClouBees services. This book explains the process of development and deployment of application on cloud. Very concise and well written explaining the intricacies of the CloudBees ecosystem. This book gave a good overview of the things needed to be aware of when considering developing an application using PaaS. The book is light on examples. Step by Step guide make it a ideal choice.
Amazon Verified review Amazon
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