A complete path with 18 bilingual lessons, 54 explained questions and a reproducible Node.js/PostgreSQL project. Understand images, build cleanly, preserve data, diagnose incidents and prepare secure deployment. Prerequisites: basic Linux terminal commands and HTTP/SQL concepts. Environment: recent Linux Docker Engine or a Linux terminal in Docker Desktop, with a modern Compose plugin compatible with Compose v2 syntax.
Understand and control containers · Build a reproducible image · Persist and restore data · Networking and Compose orchestration · Security and operational control · Diagnosis, delivery and capstone