Lab 2: Docker Containerization

[almax07082005]

Summary

• Containerized Python Flask application with Docker best practices
• Implemented non-root user for security
• Optimized layer caching for faster builds
• Created comprehensive documentation

Changes

• Added Dockerfile with python:3.13-slim base image
• Created .dockerignore to reduce build context
• Updated README.md with Docker usage instructions
• Documented implementation details in docs/LAB02.md

Docker Best Practices Applied

• Non-root user (runs as appuser)
• Specific base image version (no latest tag)
• Proper layer ordering for cache optimization
• Minimal build context with .dockerignore
• No pip cache to reduce image size

Image Information

• Base Image: python:3.13-slim
• Final Size: 221MB
• Security: Non-root user, minimal attack surface