Dockerise the application for deployment

Description

We need to containerize our Django calculator application using Docker to standardize our deployment process, simplify environment setup, and ensure consistent behavior across different environments.

Problem

• Setting up the development environment requires manual installation of dependencies
• Deployment process is not standardized, leading to potential "it works on my machine" issues
• Environment differences between development, testing, and production can cause unexpected behavior
• Scaling the application in production requires consistent deployment configurations

Desired Outcome

• A fully containerized application with Docker
• Simple and reproducible deployment process
• Clear separation between development and production environments
• Easy onboarding for new developers

Implementation Details

• Create a Dockerfile for the Django application

• Set up a docker-compose.yml file for development that includes:

  • Django web application
  • Database service (if needed)
  • Any other required services

• Configure appropriate environment variables for different deployment contexts

• Set up volume mapping for development to enable hot-reloading

• Create optimized production Docker configuration

• Document the Docker setup and deployment process

Acceptance Criteria

• Application successfully runs in Docker container

• Development environment works with hot-reloading

• All application features function correctly in containerized environment

• Documentation clearly explains how to:

  • Set up the development environment with Docker
  • Build production-ready Docker images
  • Deploy the containerized application

• CI/CD pipeline can build and test Docker images

• Docker images are optimized for size and security

Additional Considerations

• Security best practices for Docker images
• Multi-stage builds to minimize image size
• Proper handling of static files
• Database migration strategy
• Backup and restore procedures