GlassFish is an open-source Java application server that is developed by Oracle. It is a lightweight, modular, and highly configurable application server that is well-suited for developing and deploying Java-based applications and services. In this article, we will explain how to install and configure GlassFish on an Ubuntu 22.04 server.

Before you begin, make sure that you have an Ubuntu 22.04 server that is connected to the internet, and that you have a non-root user with sudo privileges.

To install Java on an Ubuntu 22.04 server, you need to run the following commands:

sudo apt update
sudo apt install default-jdk

These commands will update the package list and install the default-jdk package, which includes the Java Development Kit (JDK) and the Java Runtime Environment (JRE).

Once Java is installed, you can verify the installation by running the following command:

java -version

This command will print the version of Java that is currently installed on your server.

Once Java is installed, you can proceed with installing GlassFish on your server by following the steps outlined in the article.

To install GlassFish, you first need to download the GlassFish installation package by running the following command:

wget <https://download.oracle.com/glassfish/5.1/release/glassfish-5.1.zip>

This will download the GlassFish installation package to your server.

Next, you need to extract the GlassFish installation package by running the following command:

unzip glassfish-5.1.zip

This will extract the GlassFish installation package to a directory called glassfish5.

Once the GlassFish installation package is extracted, you can start the GlassFish server by running the following command:

cd glassfish5/bin
./asadmin start-domain

This will start the GlassFish server and create a default domain called domain1.

Now that the GlassFish server is running, you can access the GlassFish administration console by visiting the http://your_server_ip_or_hostname:4848 URL in your web browser. This will open the GlassFish administration console login page, where you can log in with the default username and password (both are admin).

Once you are logged in, you will see the GlassFish administration console dashboard, which is the main interface for managing your GlassFish instance. From here, you can view the status of your GlassFish instance, create and deploy applications, and configure the settings for your GlassFish instance. You can also install additional GlassFish modules and components, such as the Java EE 8 web profile, the WebSocket module, the RESTful web services module, and more.

To install additional GlassFish modules and components, you need to click on the “Update Tool” link in the left-hand menu, and then click on the “Available Add-Ons” tab. This will open the “Available Add-Ons” page, where you can select the modules and components that you want to install and click on the “Install” button.

Once you have installed the modules and components that you need, you can start configuring the settings for your GlassFish instance. To access the GlassFish configuration page, you need to click on the “Configurations” link in the left-hand menu, and then click on the “server-config” link. This will open the “server-config” page, where you can view and modify the settings for your GlassFish instance, such as the JVM options, the network settings, the thread pool settings, and the system properties.

Once you have configured the settings for your GlassFish instance, you can start deploying applications to it. To deploy an application, you need to click on the “Applications” link in the left-hand menu, and then click on the “Deploy” button. This will open the “Deploy an Application” page, where you can select the application archive file, specify the context root, and click on the “Ok” button to deploy the application.

In conclusion, installing and configuring GlassFish on Ubuntu 22.04 is a simple process that involves downloading the GlassFish installation package, extracting the package, starting the GlassFish server, accessing the GlassFish administration console, installing additional modules and components, and configuring the settings for your GlassFish instance. By following the steps outlined in this article, you can quickly and easily set up a GlassFish instance on your server, configure it to your liking, and start deploying Java-based applications and services.