Installing WildFly on Ubuntu 20.04

WildFly is a lightweight, flexible, and fast application server written in Java that is used to deploy and run Java Enterprise Edition (Java EE) applications. It provides a runtime environment for developing and running Java applications that follow the Java EE specifications.

Step 1: Update Ubuntu

Before installing WildFly, it's important to update your Ubuntu system to ensure that you have the latest software packages. Open a terminal and run the following commands:

sudo apt update
sudo apt upgrade

Step 2: Install Java Development Kit (JDK)

WildFly requires Java Development Kit (JDK) to be installed on your system. You can install OpenJDK by running the following command:

sudo apt install default-jdk

Verify the installation by checking the Java version:

java -version

Step 3: Download and Extract WildFly

Go to the official WildFly website (https://wildfly.org/downloads/) and download the latest stable version of WildFly.

Once the download is complete, open a terminal and navigate to the directory where the downloaded file is located. Extract the downloaded file using the following command:

tar xf wildfly-X.X.X.Final.tar.gz

Step 4: Configure WildFly

WildFly needs to be configured before it can be started. In the extracted folder, navigate to the "bin" directory and run the following command:

./standalone.sh

This command starts WildFly in standalone mode.

Step 5: Access WildFly Admin Console

Open a web browser and enter "http://localhost:8080" in the address bar. You should see the WildFly welcome page. To access the admin console, go to "http://localhost:9990" and login using the default username and password:

• Username: admin
• Password: admin

After logging in, you can manage your WildFly server, deploy applications, and configure various settings through the admin console.

Conclusion

By following these steps, you have successfully installed WildFly on Ubuntu 20.04. You can now start deploying and running your Java EE applications using the WildFly application server.