Deploying a Flask App with Python and nginx Chainguard Images

Flask is a micro web framework written in Python. It is lightweight and easy to use, making it a popular choice for building web applications. In this tutorial, we will walk you through the process of deploying a Flask app using Python and nginx with Chainguard images.

Step 1: Setting up your Flask App

Before deploying your Flask app, you need to set it up locally. Make sure you have Flask installed on your machine. You can install Flask using pip:

pip install Flask

Create a new directory for your Flask app and create a new Python file app.py. Here is a simple example of a Flask app:

    from flask import Flask

    app = Flask(__name__)

    @app.route('/')
    def hello_world():
        return 'Hello, World!'

    if __name__ == '__main__':
        app.run()
    

Step 2: Deploying your Flask App with nginx

Now that you have your Flask app set up, you can deploy it using nginx. nginx is a popular web server that can be used to serve Flask applications. Install nginx on your server using your package manager.

sudo apt-get install nginx

Create a new nginx configuration file for your Flask app. Here is an example of a basic nginx configuration file:

    server {
        listen 80;
        server_name example.com;

        location / {
            proxy_pass http://127.0.0.1:5000;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
        }
    }
    

Step 3: Load Balancing with Chainguard Images

Chainguard Images is a tool that allows you to easily deploy and manage images in your container environment. It can be used to load balance your Flask app and scale it horizontally. Install Chainguard Images using pip:

pip install chainguard

Create a new Chainguard Images configuration file for your Flask app. Here is an example of a simple configuration file:

    {
        "name": "flaskapp",
        "image": "your-flask-image",
        "environment": {
            "FLASK_APP": "app.py"
        }
    }
    

Now you can deploy your Flask app using Chainguard Images and nginx. Your Flask app will be served by nginx and load balanced using Chainguard Images.