Introduction:

This project focuses on setting up a Java-based web application with a stack that involves several core technologies: Nginx, Apache Tomcat, RabbitMQ, Memcache, MySQL, and Maven. The goal is to configure these components to work together seamlessly, ensuring efficient communication and performance for the web application.

Flow of the Stack:

The stack architecture defines how requests are handled from the user to the web application, processed by various backend components, and returned to the user. Below is a breakdown of each key element involved in the stack:

1. User Request:

• The user begins by entering the URL (or IP address) of the web application. In this project, we used an IP address to access the system. This request initiates the flow of the application.

2. Nginx (Load Balancer):

• Nginx plays the role of a load balancer in this stack. When the user makes a request, Nginx intercepts the request and redirects it to the appropriate backend service. In this case, Nginx is configured to forward all requests to Apache Tomcat, which processes the requests further.
• Nginx not only distributes the load but also acts as a reverse proxy, allowing for easy scaling and management of traffic.

3. Apache Tomcat:

• Apache Tomcat is a popular servlet container for running Java-based web applications. It serves as the application server in this stack.
• When a request reaches Tomcat, it processes the request and serves dynamic content. This is where the Java application is deployed, and it acts as the gateway between the web server (Nginx) and the database layer (MySQL).
• Tomcat is configured to run the WAR file (Web Application Archive) generated from the Java source code using Maven. The WAR file contains the compiled application and necessary resources.