Install Apache Tomcat on OpenSUSE

In this article, we will go through how to install Apache Tomcat on OpenSUSE. Apache Tomcat software is an open-source implementation of the Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations and Jakarta Authentication specifications.

How to Install Apache Tomcat on OpenSUSE

• Update your system.

sudo zypper update

Install Java 18 on OpenSUSE

• Download Java by running the command below

wget https://download.oracle.com/java/18/latest/jdk-18_linux-x64_bin.rpm

• After downloading, install it using the following command.

sudo rpm -ivh jdk-18_linux-x64_bin.rpm

Sample output

Preparing...                                                            (1################################# [100%]
Updating / installing...
   1:jdk-18-2000:18.0.2.1-ga                                            ( ################################# [100%]
update-alternatives: using /usr/java/jdk-18.0.2.1/bin/java to provide /usr/bin/java (java) in auto mode

• To confirm the version of Java install, run the command below.

java --version

Install Apache Tomcat on OpenSUSE

• Get the latest download link from the Apache Tomcat download page then download it.

VER="10.0.23"
wget https://archive.apache.org/dist/tomcat/tomcat-10/v${VER}/bin/apache-tomcat-${VER}.tar.gz

• Extract Apache Tomcat.

tar xvf apache-tomcat-${VER}.tar.gz

• Move the extracted files to the /opt directory using the command below.

sudo mv apache-tomcat-${VER} /opt/tomcat

• Next. create Apache Tomcat user.

sudo useradd -M -d /usr/share/apache-tomcat tomcat

• Give the user permission using the following command.

sudo chown -R tomcat /opt/tomcat

• To allow one specific IP address to access Apache Tomcat, add it to the config files below.

sudo nano /opt/tomcat/webapps/manager/META-INF/context.xml

sudo nano /uopt/tomcat/webapps/host-manager/META-INF/context.xml

• Add your IP address such as 192.168.5.80 in the opened files above.

<Valve className="org.apache.catalina.valves.RemoteAddrValve"
         allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1|192.168.5.80" />

• Allow Tomcat to be accessed by any IP address by removing the IP address.

<Valve className="org.apache.catalina.valves.RemoteAddrValve"
         allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />

Secure Apache Tomcat on OpenSUSE

• Open the users’ config file.

sudo nano /opt/tomcat/conf/tomcat-users.xml

Add the config below above </tomcat-users> . Replace YourStrongPassword with your real password.

Configure Systemd for Apache Tomcat

• Create systemd file for Apache Tomcat.

sudo nano /etc/systemd/system/tomcat.service

Paste the code below.

[Unit]
Description=Apache Tomcat 10 Web Application Container
Wants=network.target
After=network.target

[Service]
Type=forking

Environment="JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:///dev/urandom"
Environment="CATALINA_BASE=/opt/tomcat"
Environment="CATALINA_HOME=/opt/tomcat"
Environment="CATALINA_TMPDIR=/opt/tomcat/temp"
Environment="CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC"

ExecStart=/opt/tomcat/bin/startup.sh
ExecStop=/opt/tomcat/bin/shutdown.sh

[Install]
WantedBy=multi-user.target

• Reload systemd daemon using the command below

sudo systemctl daemon-reload

• Restart Tomcat.

sudo systemctl restart tomcat

• Enable tomcat to run on system boot.

sudo systemctl enable tomcat

Access Apache Tomcat Web

• Fire up your web browser and enter your IP address followed by port 8080 e.g. 192.168.5.40:8080

• Click on the Manager app as shown below and enter your username and password to login into the Manager app.

• Manager app dashboard.

• You have made it to the end of our article, we have gone through how to install Apache Tomcat on OpenSUSE.

Read more on Apache Tomcat Documentation

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