Learning Docker Basics

Docker was my introduction to containerization. The idea of packaging an application with everything it needs to run — and knowing it will work the same anywhere — was a game-changer.

What I'm Learning

• Images & Containers — what images are (blueprints) and containers are (running instances)
• Dockerfile — writing Dockerfiles to define how an application is built and run
• docker-compose — running multi-service applications (app + database) with a single command
• Basic Commands — build, run, start, stop, logs, exec for day-to-day container management

Where I Am Now

I'm still learning Docker, but I understand the core concepts and can containerize a basic web application for consistent development and deployment.