How to deploy Python Flask application on AWS EC2 Instance

Python Flask is a popular web framework for building web applications. If you have developed a Flask application and want to deploy it on an AWS EC2 Instance, follow these steps:

1. Create an AWS EC2 Instance:
• Go to the AWS Management Console and navigate to the EC2 dashboard.
• Click on the ‘Launch Instance’ button to create a new EC2 instance.
• Choose an Amazon Machine Image (AMI) with Python pre-installed.
• Choose an Instance Type and configure the Instance details.
• Create a new key pair or use an existing one to secure access to your instance.
• Launch the instance.
2. SSH into your EC2 Instance:
• Open a terminal and use the SSH command to connect to your EC2 instance.
• Copy the public DNS or IP address of your instance and replace ‘your-ec2-public-dns’ in the command below:

ssh -i your-ec2-key.pem ec2-user@your-ec2-public-dns

3. Install Python and Flask on your EC2 Instance:
• Update the package list and install Python by running the following commands:

sudo yum update
sudo yum install python3

• Install Flask using pip:

pip install Flask

4. Upload your Flask application to the EC2 Instance:
• Copy your Flask application files to the EC2 instance using SCP or SFTP.
• Create a virtual environment for your Flask application:

python3 -m venv venv

• Activate the virtual environment:

source venv/bin/activate

5. Run your Flask application on the EC2 Instance:
• Set the FLASK_APP environment variable to point to your Flask application:

export FLASK_APP=your_flask_app.py

• Run the Flask application in debug mode:

flask run --host=0.0.0.0 --port=80

6. Access your Flask application in a web browser:
• Open a web browser and enter the public DNS or IP address of your EC2 instance.
• Your Flask application should now be running on the AWS EC2 Instance.

Deploying a Python Flask application on an AWS EC2 Instance is a straightforward process that allows you to easily host and scale your web applications. Follow the steps above to deploy your Flask application on AWS EC2 today!