We’ll show you how to install WildFly 14 on Debian 9 with Apache as a reverse proxy. WildFly is free and open-source Java application server formerly known as JBoss. It is written in Java and used for building deploying and hosting Java applications and other web-based applications and services.
1. WildFly Requirements
In order to run WildFly on your Debian 9 server, you need the following requirements:
- Java SE 8 or later (we recommend that you use the latest update available) installed on your Debian 9 virtual server
- Debian 9 VPS with root access enabled.
2. Log in via SSH and Update your System
First, you will need to log in to your Debian 9 VPS via SSH as the root user:
ssh [email protected]_ADDRESS -p PORT_NUMBER
and as usual, run the following commands to upgrade all installed OS packages on your VPS:
apt-get update apt-get upgrade
3. Install Java
Java is not pre-installed on Debian 9 by default.
To install the Java Developer Kit (JDK), execute this command on the VPS:
apt-get install default-jdk
To find out what version of Java has been installed, run:
The output should look something like this:
openjdk version "1.8.0_181" OpenJDK Runtime Environment (build 1.8.0_181-8u181-b13-1~deb9u1-b13) OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode)
4. Install WildFly
cd /opt wget http://download.jboss.org/wildfly/14.0.1.Final/wildfly-14.0.1.Final.tar.gz tar -xvzf wildfly-14.0.1.Final.tar.gz mv wildfly-14.0.1.Final wildfly
5. Create a WildFly User
Create a new system user named wildfly:
groupadd -r wildfly useradd -r -g wildfly -d /opt/wildfly -s /sbin/nologin wildfly
6. Configure WildFly
Create a new WildFly configuration file:
Add the following lines:
WILDFLY_USER="wildfly" STARTUP_WAIT=180 SHUTDOWN_WAIT=30 WILDFLY_CONFIG=standalone.xml WILDFLY_MODE=standalone WILDFLY_BIND=0.0.0.0
so it will start WildFly 14 using the default web profile configuration in ‘standalone’ mode.
Create a WildFly startup script, named ‘launch.sh’:
Add the following lines:
#!/bin/sh if [ "x$WILDFLY_HOME" = "x" ]; then WILDFLY_HOME=/opt/wildfly fi if [ "x$1" = "xdomain" ]; then echo 'Starting Wildfly in domain mode.' $WILDFLY_HOME/bin/domain.sh -c $2 -b $3 else echo 'Starting Wildfly in standalone mode.' $WILDFLY_HOME/bin/standalone.sh -c $2 -b $3 fi
Make the startup script executable:
chmod 755 /opt/wildfly/bin/launch.sh
Create a systemd init file for WildFly, named wildfly.service:
Add the following lines:
[Unit] Description=The WildFly Application Server After=syslog.target network.target Before=apache2.service [Service] Environment=LAUNCH_JBOSS_IN_BACKGROUND=1 EnvironmentFile=/etc/default/wildfly User=wildfly LimitNOFILE=102642 PIDFile=/var/run/wildfly/wildfly.pid ExecStart=/opt/wildfly/bin/launch.sh $WILDFLY_MODE $WILDFLY_CONFIG $WILDFLY_BIND StandardOutput=null [Install] WantedBy=multi-user.target
Run the following command to reload units from disk:
Set the proper ownership of files and directories located in the /opt/wildfly directory:
chown wildfly:wildfly -R /opt/wildfly/
Start the WildFly service:
systemctl start wildfly
Enable WildFly to start automatically on boot:
systemctl enable wildfly
6. Set up a Reverse Proxy in Apache
In order to access your WildFly application only by using your domain name, without the port number in the URL, we need to set up Apache as a reverse proxy.
To do so, we will need to enable some additional proxy modules in Apache. We can do this using the following commands:
a2enmod proxy a2enmod proxy_http
Once this is done, create a new Apache configuration file for your domain with the following command:
And enter the following:
<VirtualHost *:80> ServerName your-domain.com ServerAlias www.your-domain.com ProxyRequests Off <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPreserveHost On ProxyPass / http://127.0.0.1:8080/ ProxyPassReverse / http://127.0.0.1:8080/ <Location /> Order allow,deny Allow from all </Location> </VirtualHost>
Save the file and close it.
There are two ways to enable the ‘your-domain.conf’ configuration in Apache. We can use:
Alternatively, we can accomplish the same using:
ln -s /etc/apache2/sites-available/your-domain.conf /etc/apache2/sites-enabled/your-domain.conf
Do not forget to replace your ‘your-domain.com’ with your actual domain name.
Disable the default Apache configuration file:
Restart Apache for the changes to take effect:
service apache2 restart
WildFly has a powerful web-based administration console. In order to access the WildFly management console, we have to add a new user. Run the add-user.sh script within the bin directory of the WildFly installation:
Select: a) Management User , enter a username and password for the WildFly management user.
Edit the /opt/wildfly/standalone/configuration/standalone.xml WildFly configuration file and replace:
Restart WildFly for the changes to take effect:
systemctl restart wildfly
Open http://your-domain.com and access the WildFly management console using the newly created user login credentials.
That’s it. If you followed all of the instructions properly you can now access your WildFly application using your domain name.
Of course, you do not need to install WildFly 14 on your Debian 9 VPS yourself if you use our Premium Linux Server Management Services, in which case you can simply ask our expert admins to install it for you. They are available 24/7 and will cater to any requests or questions that you may have.
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