course 04 · beginner
Docker
Package an app once and run it the same way on your laptop, in CI and in production.
- Level
- Beginner
- Roadmap
- 14 stages · 49 topics
- Lessons
- 1 of 14 ready
- Done by you
- 0/14 stages
- Before this
- Linux & Bash
- Certificate
- Preview →
before you start
The Docker roadmap
Everything this course covers, in the order you'll learn it. Open a stage to see why it matters and jump to its lesson.
01Introductionstart here
Why containers took over, and how they differ from VMs.
Lesson 1: Containers: what they are and why they won →02Under the hood
Containers are Linux features. Knowing them makes debugging much easier.
Lesson 2: Under the hood · coming soon03Installation
Get a working Docker setup on your machine and on a server.
Lesson 3: Installation · coming soon04Docker basics
Run, inspect and stop your first containers.
Lesson 4: Docker basics · coming soon05Third-party images
Run databases and tools in seconds without installing them.
Lesson 5: Third-party images · coming soon06Data persistence
Containers forget everything when they stop. Learn where data should live.
Lesson 6: Data persistence · coming soon07Building images
Write Dockerfiles that build fast and ship small.
Lesson 7: Building images · coming soon08Registries
Store and share images so CI and servers can pull them.
Lesson 8: Registries · coming soon09Running containers
Run multi-container apps with one file.
Lesson 9: Running containers · coming soon10Networking
How containers find each other and the outside world.
Lesson 10: Networking · coming soon11Security
Most container images in the wild run as root with known CVEs. Yours won't.
Lesson 11: Security · coming soon12Docker CLI
Keep a busy Docker host tidy and understandable.
Lesson 12: Docker CLI · coming soon13Developer experience
Use containers for daily development, not just deployment.
Lesson 13: Developer experience · coming soon14Deploying containers
Where containers go next. This leads into the Kubernetes course.
Lesson 14: Deploying containers · coming soonCourse complete · ready for the next one
Stage order follows the community roadmap at roadmap.sh/docker, trimmed to what DevOps work needs.