Dockerizing a Flask Application 🚀

Welcome to the guide on Dockerizing a Flask application! This README provides a comprehensive guide on setting up, building, and running a Dockerized Flask app, along with some useful Docker commands.

📁 Project Structure

Here is the directory structure of the Flask project:

Flask_App/
├── AI_Service/
│   ├── gemini_response_text.py
│   └── gemini_response_image.py
├── Backend/
│   └── app.py
├── Frontend/
│   ├── static/
│   │   ├── Images/
│   │   │   └── icon.jpg
│   │   ├── style.css
│   │   └── script.js
│   └── templates/
│       └── index.html
├── uploads/
├── Dockerfile
├── .env
└── requirements.txt

• AI_Service/: Contains scripts for processing text and image responses.
• Backend/: Includes the main Flask application file.
• Frontend/: Holds static files (CSS, JavaScript, images) and HTML templates.
• uploads/: Directory for storing uploaded files.
• Dockerfile: Configuration file for building the Docker image.
• .env: Environment variables.
• requirements.txt: Python dependencies.

🛠️ Getting Started

1. Setting Up the Flask Project

Before Dockerizing, ensure your Flask application is set up correctly:

1. Create a virtual environment (optional but recommended):

   python -m venv venv

2. Install dependencies:

   pip install -r requirements.txt

3. Run the Flask app locally to verify everything works:

   python Backend/app.py

2. Building the Docker Image

Build the Docker image for your Flask app using:

docker build -t flask-app .

3. Running the Docker Container

Run the Docker container and map the local uploads directory to the container’s uploads directory:

docker run -p 3000:3000 -v "$(pwd)/uploads:/app/uploads" flask-app

• -p 3000:3000: Maps port 3000 on your local machine to port 3000 in the container.
• -v "$(pwd)/uploads:/app/uploads": Shares the uploads directory between your host and the container.

4. Accessing the Flask App

Once the container is running, access the Flask application at http://localhost:3000. 🎉

📋 Useful Docker Commands

Here are some essential Docker commands to manage your containers and images:

• List Docker images:

  docker images

• List running containers:

  docker ps

• List all containers (including stopped ones):

  docker ps -a

• Remove a Docker image:

  docker rmi -f image-name

• View logs from a container:

  docker logs container-id

• Open an interactive terminal session inside a container:

  docker exec -it container-id /bin/bash

Demo

flask-app-google-chrome-2024-08-30-00-53-19_bLrTlJWH.mp4