Docker Complete Interactive Guide

Master containers, images, Compose, networking, volumes, and security with hands-on examples, MCQs, and coding challenges. Built for production developers.

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Fundamentals

Containers, Images & Networking

Understand what containers really are, how images are built, and how containers talk to each other and the outside world.

Compose & Storage

Orchestration & Persistent Data

Define multi-service apps with docker-compose.yml and keep data alive across container lifecycles.

Security

Hardening & Supply Chain

Run containers as non-root, lock down the filesystem, protect secrets, and trust only scanned images.