Best Practices for Running Moodle on Amazon EC2 with HA and Scalability

Introduction

Learning Management Systems (LMS) like Moodle are widely used by universities, training institutes, and enterprises to manage and deliver online education platforms efficiently. These systems help organize course content, manage users, track progress, and enable communication between instructors and learners. With the growing demand for online learning, it is essential to deploy LMS platforms in a reliable, secure environment that can handle increasing user traffic.

In this guide, we will deploy Moodle on Amazon Web Services (AWS), which provides a flexible and scalable cloud environment. We will use Amazon EC2 for hosting the application

• Amazon RDS for database management

This setup ensures:

• Better database reliability
• Improved security
• Simplified management
• Production-ready deployment architecture

We will walk through the complete process, including database creation, Amazon EC2 setup, Moodle installation, and troubleshooting steps.

Implementation Steps

1. Create an Amazon RDS Database (MySQL 8.4.6)

Create an Amazon RDS instance with:

• Database Engine: MySQL
• Version: 8.4.6
• Configure username and password
• Allow inbound access from the Amazon EC2 security group

This database will store all Moodle-related data.

2. Create an Amazon EC2 Instance

• Launch an Ubuntu-based EC2 instance
• Configure security group (allow SSH and HTTP)
• Download key pair
• Connect using PuTTY

This Amazon EC2 instance will host the Moodle application.

3. Connect to EC2 and Install Moodle

After connecting to Amazon EC2 via PuTTY:

– Make sure to type sudo before every command.

# Update System Packages

sudo apt update
sudo apt upgrade -y

# Install Required Software (Apache, PHP, MySQL Client)

sudo apt install apache2 -y
sudo apt install php php-mysql php-xml php-gd php-curl php-intl php-zip php-mbstring -y
sudo apt install mysql-client -y

# Download Moodle

cd /var/www/html

sudo wget https://download.moodle.org/download.php/direct/stable500/moodle-latest-500.tgz

# Extract Moodle Files

sudo tar -zxvf moodle-latest-500.tgz

sudo mv moodle/* .

# Set Permissions

sudo chown -R www-data:www-data /var/www/html

sudo chmod -R 755 /var/www/html

# Restart Apache Server

sudo systemctl restart apache2

# Now open your browser:

http://<your-ec2-public-ip>

4. Configure High Availability and Scalability

To ensure the Moodle application can handle traffic efficiently and remain available during failures, set up AWS scaling and load balancing services.

Create a Launch Template
Use the existing Amazon EC2 instance configuration to create a reusable template for launching multiple instances.

• Create an Auto Scaling Group

Attach the launch template and define minimum, maximum, and desired instance capacity. This automatically scales instances based on demand.

• Create a Target Group
  Register Amazon EC2 instances so that incoming traffic can be routed correctly.
• Create an Application Load Balancer
  Attach the target group and configure listeners to distribute incoming traffic across multiple Amazon EC2 instances.

5. Fix Moodle Version Issue (If Blog Version is Outdated)

If the Moodle version mentioned in the reference blog is incorrect or corrupted, use the following commands:

cd /downloads
sudo rm moodle-latest-*.tgz  # Remove any previously corrupted downloads

# Download the latest stable Moodle 5.0.1+ tarball
sudo wget https://download.moodle.org/download.php/direct/stable500/moodle-latest-500.tgz

# Verify file type (should say “gzip compressed data”)
file moodle-latest-500.tgz

# Extract it
tar -zxvf moodle-latest-500.tgz

These commands:

• Remove corrupted downloads
• Download the correct Moodle version
• Verify file integrity
• Extract installation files

6. Fix Database Connection Issue (If Moodle Cannot Connect)

If Moodle fails to connect to the database, manually configure MySQL:

sudo mysql
CREATE USER ‘admin’@’localhost’ IDENTIFIED BY ‘awsuser17’;
GRANT ALL PRIVILEGES ON moodle.* TO ‘admin’@’localhost’;
FLUSH PRIVILEGES;

This ensures that Moodle has proper database permissions.

7. Fix PHP Compatibility Issues (If Database Version Changed)

If Moodle still doesn’t work after the DB version update, run:

sudo apt update
sudo apt install software-properties-common -y
sudo add-apt-repository ppa:ondrej/php -y
sudo apt update

Conclusion

By integrating Amazon EC2 with Amazon RDS, we successfully deployed Moodle in a structured, production-ready manner. This approach separates the application and database layers, improving reliability and maintainability.

This setup serves as the foundation for a highly available, scalable Moodle architecture in AWS.

Drop a query if you have any questions regarding Amazon EC2 and we will get back to you quickly.

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