Flask File Upload to AWS S3 | Full Deployment on Ubuntu EC2 (Step-by-Step)

In this video, I demonstrate how to deploy a Python Flask application on an Ubuntu EC2 instance in AWS, allowing users to upload files directly to an S3 bucket.

Steps covered in this video:

Create a custom VPC, subnet, internet gateway, and route table in AWS.

Configure security groups to allow SSH and HTTP traffic.

Launch an Ubuntu 22.04 LTS EC2 instance with a key pair.

Connect to the instance via SSH from Windows PowerShell.

Set up a Python virtual environment and install Flask and boto3.

Create a Flask app with an HTML file upload page.

Connect the Flask app to an S3 bucket and upload files.

Test the application in a browser using the EC2 public IP.

This tutorial shows everything from scratch, perfect for beginners wanting to learn AWS networking, EC2, Flask deployment, and S3 integration.