WildFly with a custom configuration in OpenShift (Tech Tip #47)

WildFly instances can be easily started in OpenShift. Tech Tip #7 shows how to spin up an instance of WildFly in OpenShift. Tech Tip #21 explained how to get started using JBoss Tools.

Now this WildFly instance is started with the stock configuration.xml. However some times you may want to configure the containers or specify additional configuration information in this file. This Tech Tip will show you how to do that.

Let’s go!

  1. Start a WildFly instance as explained in Tech Tip #7.
  2. On the application page, clone the workspace associated with this application. The command will look something like:
  3. This workspace has .openshift/standalone.xml file. Edit this file to meet your need. For example, if you want to use Infinispan as a persistency solution in standalone mode, then you’ll add the following code fragment:

    under <subsystem xmlns="urn:jboss:domain:infinispan:2.0"> section.
  4. Commit and push the change:

    This will automatically restart the cartridge and show the output as:

Now the WildFly instance in OpenShift will use the updated configuration file.

You can even verify this by logging into your application as:

And checking for the updated elements in wildfly/standalone/configuration/standalone.xml file.

Alternatively, you can ssh into your instance and use the JBoss CLI to make updates to your standalone.xml file.

Enjoy!

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