Stacked shipping containers

Docker Essentials

Understand what a container actually is, build small images that rebuild fast, and run a multi-service stack on your own machine.

Beginner3h 53m4 modules28.4k students

What you'll learn

Know what a container really is

Explain images, layers, and the kernel features that make isolation work, rather than treating it as magic.

Build images that rebuild in seconds

Order a Dockerfile so the cache does its job and a code change does not reinstall every dependency.

Ship a small, safe image

Use multi-stage builds and non-root users to cut both size and attack surface.

Run a full stack locally

Wire an app, a database, and a cache together with Compose, including volumes and networking.

Course Content

4 modules • 3h 53m

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Docker Essentials — Vertex