Monitor Tomcat using Splunk Enterprise in RWS Development Environment

Projects: c2platform/rws/ansible-gis, c2platform.core, c2platform.mw

Overview

This tutorial demonstrates the setup of a Tomcat node on Ubuntu 22 and intallation of Jolokia which is then used for Java monitoring using Splunk. The setup of this node is similar to that of gsd-tomcat1 and gsd-tomcat2 as described in Tomcat SSL/TLS and Java Keystore and TrustStore Configuration for Linux and Windows Hosts witc the difference that this node is created for the purpose of monitoing

Prerequisites

• Setup the RWS Development Environment on Ubuntu 22: Install Ansible, Vagrant, LXD, Virtualbox and clone the project directory.
• Setting up Splunk Enterprise in RWS Development Environment: This guide aids the GIS Platform team in integrating and experimenting with Splunk Enterprise monitoring within the RWS development environment.

With the RWS development environment ensure the reverse proxy node and the

vagrant up gsd-rproxy1 gsd-splunk

Setup

To initialize the Tomcat nodes gsd-tomcat3, execute the following command:

vagrant up gsd-tomcat3

Verify

Start FireFox using your FireFox profile ( see Configure a FireFox Profile ) and you should be able to navigate to the links below and see the “Hello World” application. You should not see any SSL/TLS certificate error messages.

1. https://gsd-tomcat3.internal.c2platform.org:8443/helloworld/ 
2. https://gsd-tomcat3.internal.c2platform.org:8443/jolokia/ 

The second link should show Jolokia  output. The output should be similar to jolokia.json 

Setup Monitoring

Now that we have node gsd-tomcat up and running, we want to get the Tomcat logging into splunk. Tomcat logs are created in directory /opt/tomcat/tomcat/logs/

Additional Information

For additional insights and guidance: