Book Image

Cloud Development and Deployment with CloudBees

By : Nicolas De loof
Book Image

Cloud Development and Deployment with CloudBees

By: Nicolas De loof

Overview of this book

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.
Table of Contents (15 chapters)
Cloud Development and Deployment with CloudBees
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Scalability


Talking about Cloud to host your application, we're comparing to classic hardware. Such servers are large memory—high-CPU computers in a self-hosted datacenter. Many applications, even the high-load ones, running in such a context are monolithic, single-server applications. The Cloud is based on smaller low-cost machines, which are available by dozen when necessary.

Vertical scalability is the option to scale up the application to a larger server when it requires more resources. This makes sense in the Cloud context as the on-demand resources and automated APIs let you restart your application on a new server within minutes. So, you can use a larger server as your application load grows, but keep in mind that there's a limit. Let's consider the features of Amazon EC2 m1.large computer:

  • 64 bits CPU 4 compute unit (this is equivalent to a 4 Intel Xeon 2007 1 GHz CPU)

  • 7.5 GB memory

  • 800 GB ephemeral disk

  • Moderate network performance

Such a large server is comparable to the MacBook pro...