Getting Started with Docker Containers

Docker has revolutionized how we develop, ship, and run applications. It provides a consistent environment from development to production, eliminating the 'it works on my machine' problem.

Why Docker?

Docker containers are lightweight, standalone, and executable packages of software that include everything needed to run an application. They're isolated from each other and the host system.

Basic Commands

docker build - Build an image from a Dockerfile
docker run - Run a container
docker-compose up - Start multi-container applications

Best Practices

Keep images small, use multi-stage builds, and never run as root in production containers.