🐳 Docker
Practice Docker Commands in a Live Terminal
From the difference between images and containers through docker run, build and compose, learn Docker across all 45 lessons, step by step. Type real commands into the pseudo terminal below to build muscle memory as you go.
What is Docker used for?
Docker packages an application together with everything it needs to run into a box called a container, so the same thing behaves identically on a laptop and in production. It largely retires the old complaint that "it works on my machine", and it now underpins nearly every stage of modern software work — standardising development environments, deploying to servers, and running tests in CI/CD.
Common uses & related roles:
- Standardising development environments
- Deploying applications to servers
- CI/CD pipelines and automated testing
- Backend engineer / infrastructure engineer
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