How To Install WildFly on Ubuntu 20.04 LTS

In this tutorial, we will show you how to install WildFly on Ubuntu 20.04 LTS. For those of you who didn’t know, The WildFly implements the Java Enterprise Edition (Java EE). It is among the most common source Java server applications. It offers you an administration dashboard to manage single or multiple domains efficiently.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation WildFly on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

Prerequisites

• A server running one of the following operating systems: Ubuntu 20.04, 18.04, 16.04, and any other Debian-based distribution like Linux Mint.
• It’s recommended that you use a fresh OS install to prevent any potential issues.
• A non-root sudo user or access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Install WildFly on Ubuntu 20.04 LTS Focal Fossa

Step 1. First, make sure that all your system packages are up-to-date by running the following apt commands in the terminal.

sudo apt update
sudo apt upgrade

Step 2. Installing Java.

Run the following commands below to install Java:

sudo apt install default-jdk

Verify Java version:

java -version

Step 3. Create a WildFly User.

Run the commands below to create a WildFly service account to manage the server:

sudo groupadd -r wildfly
sudo useradd -r -g wildfly -d /opt/wildfly -s /sbin/nologin wildfly

Step 4. Download and Installing WildFly.

Now we download the latest version of WildFly on the server and extract it using the following commands:

cd /tmp
wget https://download.jboss.org/wildfly/20.0.1.Final/wildfly-20.0.1.Final.tar.gz
tar xvf wildfly-20.0.1.Final.tar.gz
sudo mv wildfly-20.0.1.Final/ /opt/wildfly
sudo chown -RH wildfly: /opt/wildfly

Next, create a WildFly service folder in the /etc/ directory by running the commands below:

sudo mkdir -p /etc/wildfly

Then, copy WildFly configuration files, executables into the newly created directory above:

sudo cp /opt/wildfly/docs/contrib/scripts/systemd/wildfly.conf /etc/wildfly/
sudo cp /opt/wildfly/docs/contrib/scripts/systemd/launch.sh /opt/wildfly/bin/
sudo sh -c 'chmod +x /opt/wildfly/bin/*.sh'

After that copy its systemd file to the /etc/systemd/system/ directory:

sudo cp /opt/wildfly/docs/contrib/scripts/systemd/wildfly.service /etc/systemd/system/

Then, start the WildFly service by executing:

sudo systemctl stop wildfly.service
sudo systemctl start wildfly.service
sudo systemctl enable wildfly.service

Step 5. Configure the Firewall for WildFly.

Allow traffic on port 8080 type the following command:

sudo ufw allow 8080/tcp

Step 6. Accessing WildFly Installation.

WildFly will be available on HTTP port 8080 by default. Open your favorite browser and navigate to http://your-domain.com:8080 or http://server-ip-address:8080 and complete the required steps to finish the installation.

Congratulations! You have successfully installed WildFly. Thanks for using this tutorial for installing WildFly on your Ubuntu 20.04 LTS Focal Fossa system. For additional help or useful information, we recommend you check the official WildFly website.