# Tomcat 10.x on RHEL 8/9

This article describes the procedure for installing and configuring Apache Tomcat 10.x to deploy the OvalEdge application on RHEL 8/9 systems. It outlines the required setup, configuration steps, and service enablement. The guide ensures a consistent and repeatable installation process aligned with OvalEdge deployment standards.

## Prerequisites

* User account with sudo privileges
* Stable internet connection
* Access to the OvalEdge application package (WAR file)
* Required configuration files (oasis.properties, log4j.properties)

## Steps Involved

1. Create Required Directories
   * Log in to the application VM and create directories to store application configuration files.

2. Download Apache Tomcat
   * Download the hardened Tomcat package using the following command:

     ```
     wget https://ovaledge.s3.us-west-1.amazonaws.com/scripts/hardened_tomcat/apache-tomcat-10.1.40.tar.gz
     ```

     \
     Sample Reference Screenshot:

     <div align="left"><figure><img src="/files/yD07orTkq7jNr2XyGi4C" alt=""><figcaption></figcaption></figure></div>

3. Extract the Tomcat Archive
   * Extract the downloaded archive:

     ```
     tar -xvf apache-tomcat-10.1.40.tar.gz
     ```

     \
     Sample Reference Screenshots:

     <figure><img src="/files/SamvCfBOoq35Vuw4FPKi" alt=""><figcaption></figcaption></figure>

     <figure><img src="/files/ijqZNzSSivUNSp6QH0aK" alt=""><figcaption></figcaption></figure>

4. Configure Environment Settings
   * Navigate to the Tomcat bin directory and create the setenv.sh file:

     ```
     vi apache-tomcat-10.1.40/bin/setenv.sh
     ```
   * Add the following configuration:

     ```
     export CATALINA_OPTS="-Duse.http=true -DOVALEDGE_SECURITY_TYPE=db -Dlog4j.configuration=file:/home/ovaledge/extprop/log4j.properties -Dext.properties.dir=file:/home/ovaledge/extprop/ -Xms4g -Xmx7g -DOVALEDGE_ENCRYPT_DECRYPT_KEY=<client_input> --add-opens=jdk.zipfs/jdk.nio.zipfs=ALL-UNNAMED --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED"
     ```

     \
     Sample Reference Screenshot:

     <figure><img src="/files/0IQA8XOqvEH4KGpkA4lJ" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Ensure the correct paths are provided for oasis.properties and log4j.properties.
{% endhint %}

5. Deploy the OvalEdge Application
   * Navigate to the webapps directory and place the ovaledge.war file (provided by the OvalEdge team).\
     \
     Sample Reference Screenshot:

     <figure><img src="/files/jLTFXBBrPLSa12IZnGrm" alt=""><figcaption></figcaption></figure>
6. Configure Tomcat as a System Service
   * Navigate to the systemd directory:

     ```
     cd /etc/systemd/system
     ```
   * Create the service file:

     ```
     sudo vi tomcat.service
     ```
   * Add the following configuration:

     ```
     [Unit]
     Description=Apache Tomcat Web Application Container for OvalEdge
     After=syslog.target network.target
     [Service]
     Type=forking
     WorkingDirectory=/home/ovaledge/apache-tomcat-10.1.40/bin
     ExecStart=/bin/bash /home/ovaledge/apache-tomcat-10.1.40/bin/startup.sh
     ExecStop=/bin/bash /home/ovaledge/apache-tomcat-10.1.40/bin/shutdown.sh
     User=ovaledge
     Group=ovaledge
     [Install]
     WantedBy=multi-user.target
     ```

     \
     Sample Reference Screenshot:

     <figure><img src="/files/jidTMCwJqw3zD7H4dg3m" alt=""><figcaption></figcaption></figure>
   * Save the file.
7. Enable and Start Tomcat Service
   * Reload systemd and start the Tomcat service:

     ```
     sudo systemctl daemon-reload
     sudo systemctl enable tomcat
     sudo systemctl start tomcat
     ```

     \
     Sample Reference Screenshot:

     <figure><img src="/files/Vkv78UknGZQnx4vimlb7" alt=""><figcaption></figcaption></figure>
8. Validate the Deployment
   * Access the application using a web browser:

     ```
     http://<IPADDRESS>:8080/ovaledge
     ```
   * Allow approximately 2 minutes for the application to initialize.<br>

     <figure><img src="/files/PEwUKbfDQCtNBc3jiMbn" alt=""><figcaption></figcaption></figure>

***

Copyright © 2026, OvalEdge LLC, Peachtree Corners, GA, USA.


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