Introduction for IBM Modernized Runtime Extension for Java

Introduction

IBM Modernized Runtime Extension for Java (MoRE) is an extension of WebSphere® Application Server Network Deployment (ND) 9.0.5 that enables you to run and manage Liberty servers from the traditional WebSphere environment. With MoRE, Liberty servers can be configured, clustered, and administered using familiar tools like the administrative console and wsadmin scripting.

About this lab

In this interactive, hands-on lab, you'll explore the cutting-edge capabilities of WebSphere Application Server and MoRE—tools designed to supercharge your modernization journey.

Through guided modules, you'll deploy modern Jakarta EE and Spring Framework applications to a Liberty server or cluster, using the WebSphere Administrative Console and/or automation with wsadmin scripts. Whether you're modernizing legacy systems or building cloud-native apps, this lab is your launchpad into the next generation of enterprise application management.

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Getting started

This section guides you through the initial setup of the lab environment. Perform all tasks from the student virtual machine.

Lab environment overview

The lab environment is preinstalled with the following packages:

• WebSphere Application Server Network Deployment (ND), version 9.0.5.24, running on Java SE 8

  • Modernized Runtime Extension for Java (MoRE), version 1.0.0.1

• WebSphere Liberty, version 24.0.0.6, running on Java SE 17

In addition, the environment is preconfigured with the following profiles and server instances:

• A Deployment Manager (dmgr), which serves as the central controller for the WebSphere cell.

Create a Managed Liberty Server

After the instllation, follow this steps to create a Managed Liberty Server demo.

1. Launch the WAS Admin Console by selecting it from your browser bookmarks or navigating to the https://localhost:9043/ibm/console URL.
2. Go to Servers → Server Types → WebSphere Application Servers →New....
3. In the Application servers panel,

• Under New..., select Managed Liberty server and type demo under the Server name textbox.

4. Click Next on Step 2 and 3.
5. Click Finish on Step 4.
6. Click Save on the displayed message. The next step is to deploy applications to the created Managed Liberty server.

Deploy apps to a Managed Liberty Server

After you have completed the installation, it is time to deploy Jakarta EE 10 or Spring Framework 6.x apps to your Managed Liberty Servers. This downloads contains a couple of apps to help you get started.

A Jakarta EE 10 application

The app modResort utilises Jakarta EE 10 technologies. Clicking the above link to the app to download this war to your local system.

Installing the application WAR file

1. Launch the WAS Admin Console by selecting it from your browser bookmarks or navigating to the https://localhost:9043/ibm/console URL.

2. Go to Applications → New Application → New Enterprise Application.

   

3. In the installation panel:

   • Under Path to new application, select Local file system and choose the WAR file modresorts-2.0.0.war downloaded earlier.
   • Set Target Runtime Environment to WebSphere Liberty

   Click Next and wait for the application to upload.

4. Choose Fast Path and click Next.

5. Leave Step 1 unchanged and click Next.

6. On Step 2, map the application module:

   • Under Cluster and servers, select the server demo.

   • Check the box next to modresorts-2.0.0.war and click Apply.

   • Confirm that the server demo is listed under the Server column for the modresorts-2.0.0.war module.

   Click Next.

7. On Step 3, confirm that the Context Root is set to /resorts and click Next.

8. On Step 4, review the installation summary and click Finish.

9. After the installation completes, click Review.

   Select Synchronize changes with Nodes, and click Save. Click OK when synchronization is complete.

10. Start the Managed Liberty server demo, by following the following instructions.

• Go to Servers → Server Types → WebSphere Application Servers →
• Click on the checkbox next to demo and click on Start button. Both the server and the app should be started.

11. Try out the application

• On a terminal window, go the demo MLS and then display console.log e.g. (cat /opt/IBM/WASND/profiles/AppSrv01/managedLiberty/usr/servers/demo/logs/console.log).
• Find the endpoint for the ModResort e.g. http://9.46.96.145:9081/resorts/. The following should be displayed.

A Spring Framework 6.x application

The app Spring Petclinic utilises Spring Framework 6.x and Jakarta EE 10 technologies.

You can use the same steps as documented above to install this application.

Deploy apps to a Managed Liberty Server cluster

Follow this instruction to deploy applications to a Managed Liberty Server cluster.