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Application environment migration with WebSphere CloudBurst

Preserving the fidelity of application environments through patterns

Dustin Amrhein, Technical Evangelist, IBM
Author photo
Dustin Amrhein joined IBM as a member of the development team for WebSphere Application Server. While in that position, Dustin worked on the development of Web services infrastructure and Web services programming models. In addition, Dustin lead the technical effort in the development of a Java RESTful services framework. In his current role, Dustin is a technical evangelist for emerging technologies in IBM’s WebSphere portfolio. His current focus is on WebSphere technologies that deliver cloud computing capabilities, including the WebSphere CloudBurst Appliance.
Ruth Willenborg, Senior Technical Staff Member, IBM
Ruth Willenborg
Ruth Willenborg is a Senior Technical Staff Member in IBM's WebSphere Technology Institute where she is currently working on WebSphere cloud computing and virtual appliance initiatives and is the technical evangelist for the new IBM WebSphere CloudBurst Appliance. Prior to her work on virtualization and appliance initiatives, she was the manager of the WebSphere Performance team responsible for WebSphere Application Server performance analysis, performance benchmarkingm and performance tool development. Ruth has more than 20 years of experience in software development at IBM and is co-author of Performance Analysis for Java Web Sites (Addison-Wesley, 2002) and numerous articles on both WebSphere performance and using WebSphere with virtualization technologies.

Summary:  In this tutorial, the authors demonstrate how to use WebSphere® CloudBurst to build patterns you can use to represent the configuration of both your application and application infrastructure. They also show you how to use these patterns to consistently deploy the application environment as it moves through the four life-cycle stages — development, test, QA, and production. The tutorial offers a complete, step-by-step example of using patterns to handle changing topologies, underlying platform architectures, and configuration properties.

Date:  01 Jun 2010
Level:  Intermediate PDF:  A4 and Letter (908 KB | 36 pages)Get Adobe® Reader®

Comments:  

The sample scenario

Now we'll look at an example scenario implementing each of these concepts using WebSphere CloudBurst. In this example, the application infrastructure will be a clustered WebSphere Application Server environment. The environment consists of the following nodes and application servers:

  • One deployment manager node.
  • Two custom nodes federated to the deployment manager. Each node contains a single application server instance and the application servers belong to a cluster.
  • One IBM HTTP Server node.

In addition to the basic WebSphere Application Server topology, we also have a Java™ 2 Platform, Enterprise Edition (J2EE) application (which we will call Account Management) installed on the application server cluster. This application has a dependency on an external IBM DB2® database instance and the configuration of that dependency is different in different settings.

Figure 1 illustrates the application environment we just described.


Figure 1. Example application environment
Example application environment

In our scenario, we will show how you can use WebSphere CloudBurst to create and manage this environment as it is moved from development to test to quality assurance and then finally on to a production setting. This includes the following steps:

  1. Create the necessary WebSphere CloudBurst script packages.
  2. Create the initial WebSphere CloudBurst pattern for development settings.
  3. Migrate and deploy the application environment to a test setting.
  4. Migrate and deploy the application environment to a QA setting.
  5. Migrate and deploy the application environment to a production setting.

During each migration and subsequent deployment, we will illustrate the ease with which you can make slight changes to the setup without compromising the overall integrity of the resulting application environment. These changes will include alterations to the WebSphere Application Server topology, changes to the configuration for DB2 integration, and even changes to the underlying operating system platform.

Please notice, if you attempt to replicate some of the steps we take in the rest of the article, you will need access to a WebSphere CloudBurst Appliance with permissions to create catalog content, create patterns, and deploy patterns.

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static.content.url=http://www.ibm.com/developerworks/js/artrating/
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TutorialTitle=Application environment migration with WebSphere CloudBurst
publish-date=06012010
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