NEW350+ rooms now have a live terminal, so you can learn by typing the commands, right in your browser.Learn in a live terminal. 350+ rooms.Try a lab♥ Codelivly is 100% free, no paywall. If it helped you, chip in to keep it running.100% free. Help keep it so.Support us
[>_] ROOM · Cybersecurity
Docker for Pipelines
Master containerization for CI/CD. Learn to write optimized multi-stage Dockerfiles, leverage service containers for testing, and secure images in your pipelines.
Room tasks
1What Is Containerization and Why Does It Matter
2Images, Containers and Registries: The Pipeline Lifecycle
3Writing Optimized Dockerfiles: Multi-Stage Builds and Caching
4Multi-Stage Builds and Layer Caching
5Guided Lab: Containerizing and Publishing a Web Application
Docker for CI/CD Pipelines and Dockerfiles | Codelivly
Frequently Asked Questions
What is a multi-stage Dockerfile?
A multi-stage Dockerfile uses several build stages and copies only the final artifacts into a small runtime image. This reduces size and attack surface by leaving build tools out of production.
Why does Docker matter in CI/CD?
Containers give builds and tests a consistent, isolated environment, so pipelines behave the same everywhere. They also package applications for deployment in a repeatable way.
How can I make Docker images more secure?
Use minimal base images, run as a non-root user, pin versions and scan images for vulnerabilities. The Codelivly room is free and hands-on, covering these practices in pipelines.