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-Last login: Mon Mar 17 20:02:32 on ttys001
+\# Web Application Docker Deployment Documentation
+Conditions for Deploying and Running the Application
+To deploy and run this web application, the following software must be installed on your system:
 
-The default interactive shell is now zsh.
-To update your account to use zsh, please run `chsh -s /bin/zsh`.
-For more details, please visit https://support.apple.com/kb/HT208050.
-MacBookPro:~ puneetkhurana$ cd Documents/
-MacBookPro:Documents puneetkhurana$ cd zkt25/
-MacBookPro:zkt25 puneetkhurana$ cd z1/
-MacBookPro:z1 puneetkhurana$ vim README.md
+# Docker
+Install Docker (with Docker Compose) to create and manage containers.
 
+# Git
+Ensure Git is installed if you're cloning the project repository.
 
+# A terminal/command-line interface
+You will need a terminal for executing shell scripts and commands.
 
+#  A web browser
+Used to access the web application once it is deployed (recommended: Google Chrome or Mozilla Firefox).
 
+# Description of the Application
+This application is a basic PHP web application connected to a MySQL database. It consists of the following components:
 
+Apache Web Server with PHP: The Apache service runs the PHP application and serves it through the web server.
 
+MySQL Database: A MySQL database that stores user data and other application-related information.
 
+Persistence Mechanism: Uses Docker volumes to ensure that data stored in the MySQL database persists even after the containers are stopped or removed.
 
+Virtual Networks and Named Volumes Used by the Application
+Network:
+The containers are connected via a custom Docker bridge network named my_network. This allows communication between the Apache-PHP service and the MySQL service.
 
+# Named Volume:
 
+mysql_data: A named volume used to store the database data persistently. This ensures that even if the containers are removed or recreated, the database data will be preserved.
 
+# Container Configuration
+The application consists of the following Docker containers:
 
+1. Apache-PHP Container
+Service Name: apache
 
+Image: Official php:apache image.
 
+Ports:
 
+Exposes port 8080 for accessing the web application through a browser.
+
+Volume Mapping:
+
+Maps the app directory from the host machine to the container, where the PHP files are stored and served.
+
+2. MySQL Container
+Service Name: mysql
+
+Image: Official mysql image.
+
+Ports:
+
+Exposes port 3306 for database communication (typically used for internal communication with the Apache-PHP container).
+
+# Volume Mapping:
+
+Uses a named volume mysql_data for persisting database data.
+
+# Containers Used and Brief Description
+apache:
+This container runs the Apache web server with PHP support. It serves the PHP files that are located in the app directory.
+
+mysql:
+This container runs the MySQL database. It stores and manages the data for the PHP application, using the mysql_data volume for persistence.
+
+Instructions on How to Prepare, Run, Pause, and Delete the Application
+1. Prepare the Application
+To set up the necessary network and volume, run the following command:
 
-Start the Application**
-This script **starts all services in the background**:
 bash
+Copy
+Edit
+./prepare-app.sh
+This script will:
+
+Create the custom Docker network (my_network).
+
+Create the named volume (mysql_data).
+
+Set up the application directory and create a test PHP file.
+
+2. Start the Application
+To start the application and run the containers in detached mode, execute:
+
+bash
+Copy
+Edit
 ./start-app.sh
+This script will:
 
-Expected output:
+Start the Docker containers (apache and mysql).
 
-Starting application...
-Application started. Access it at http://localhost:8080
+Wait for a few seconds to ensure all services are up and running.
 
+Display a message with the URL to access the web application.
 
-view the Application in a Web Browser**
-- Open **[http://localhost:8080](http://localhost:8080)**
-- You should see: `Welcome to My Nginx Server!`
-
-Pause the Application (Without Deleting Data)**
-To stop the application while keeping data intact:
+3. Pause the Application
+To stop the running containers without deleting data, use:
 
+bash
+Copy
+Edit
 ./stop-app.sh
+This will:
 
-Expected output:
+Stop the containers (apache and mysql).
+
+4. Delete the Application
+To completely remove the containers, networks, and volumes, run:
+
+bash
+Copy
+Edit
+./remove-app.sh
+This will:
+
+# Remove the apache and mysql containers.
+
+# Delete the custom Docker network and the named volume mysql_data.
+
+# Instructions on How to View the Application on the Web
+Once the application is running, open a web browser and navigate to:
+
+plaintext
+Copy
+Edit
+# http://localhost:8080/index.php
+This page will test the connection to the MySQL database. If the connection is successful, a confirmation message will be displayed.
+
+# Conclusion
+This project demonstrates how to deploy a simple PHP application with a MySQL database using Docker. By using Docker Compose, the application ensures modularity and ease of deployment, while the named volume ensures that database data is persisted across container restarts.