Docker and containers · Intermediate · 5 h

Images that are small, safe and reproducible

Dockerfiles, layers and caching, non-root users, health checks, and why images get big.

Why employers care: Almost everything now ships as a container. A bad Dockerfile means slow builds, huge images and security findings.

In the roadmaps for: AI/ML Engineer, Forward Deployed Engineer, Software Engineer (Backend), DevOps / Platform Engineer, Cloud and Network Engineer, Blockchain Developer