How to Deploy a Flask Portfolio Website on AWS Elastic Beanstalk

Deploying Your Flask Application on AWS Elastic Beanstalk: A Comprehensive Guide

This guide walks you through deploying a Flask application (a portfolio website example) to AWS Elastic Beanstalk, addressing recent changes in Auto-Scaling Group policies. Whether you're a cloud novice or a seasoned developer, this step-by-step process simplifies the deployment.

Prerequisites:

• Familiarity with Flask and AWS Elastic Beanstalk.
• Flask installed (pip install flask).

Project Setup:

1. Clone the Repository: Clone the sample portfolio application from this GitHub repository: [GitHub Repo: ebs-demo](placeholder - replace with actual link if available). Use git clone <repository_url>.
2. Install Dependencies: Navigate to the project directory and run pip install flask.
3. Run Locally: Start the application with python3 application.py. Test and customize (modify index.html, img/Profile.jpeg, style.css).

The default portfolio looks like this:

Deployment to AWS Elastic Beanstalk:

Step 1: Package Your Application

Create a deployable zip archive:

zip -r flask_portfolio.zip . -x "venv/*" -x "*.git/*" -x "*.idea/*" -x "*.DS_Store"

This excludes unnecessary files.

Step 2: Create an Elastic Beanstalk Application

1. Log in to the AWS Elastic Beanstalk console.
2. Click "Create Application."
3. Give your application a name (e.g., Flask-Demo).
4. Select "Python" as the platform.
5. Choose "Upload your code," upload flask_portfolio.zip, assign a version label (e.g., v1), and click "Next."

Step 3: Configure Service Role and EC2 Instance Profile

1. Service Role: Create a new service role or select an existing one.
2. EC2 Key Pair: Select an existing key pair.
3. EC2 Instance Profile: Create a new IAM role in the IAM console for EC2, attaching AmazonSSMManagedInstanceCore and CloudWatchLogsFullAccess permissions. Name it (e.g., Role-for-ec2-beanstalk). Select this new role in Elastic Beanstalk.

Step 4: Network Configuration

1. Select your default VPC.
2. Enable a Public IP address and choose subnets. Keep other settings default.

Step 5: Traffic Configuration (Crucial)

1. Root Volume Type: Select GP3 to avoid issues with Auto-Scaling Group policies.

Step 6: Monitoring and Platform Updates

1. Select "Basic monitoring."
2. Uncheck "Managed Updates."

Step 7: Review and Deploy

Review your settings and click "Submit." Deployment takes 5-7 minutes.

Your application will be accessible via the Elastic Beanstalk environment URL.

Conclusion:

You've successfully deployed your Flask application! This guide provides a foundation for further exploration of Elastic Beanstalk's scaling and monitoring capabilities. Continue learning and experimenting!

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